Answers
\(▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪\)
Let's solve :
\({(2 {x}^{2} + 5) }^{ - \frac{5}{2} } \)\( \dfrac{1}{{(2 {x}^{2} + 5) }^{ \frac{5}{2} } } \)\( \dfrac{1}{ \sqrt{( 2{x}^{2} + 5) {}^{5} } } \)therefore, the correct choice is :
ARelated Questions
-5b-17=18
plz help asap
what is the answer
and what does b stand for??!?
Answers
Answer:
b = -7
Step-by-step explanation:
b is a variable meaning it is an unknown value
In order to solve for b, isolate it by adding 17 to both sides:
-5b = 35
and then dividing both sides by -5
b = -7
1. A normal male adult's pulse beats 360 times in
5 minutes when he is at rest. What is his normal
pulse rate (i.e., the number of beats per minute)?
Answers
You have 3 hours of
Playtime you use
3/5 of that time outside. How many hours
Do you
have left?
Answers
Answer:
1.2 hours
Step-by-step explanation:
Please help Solve the following equations.
Answers
Answer: 0 & -7
Step-by-step explanation:
Answer:
12. 0
13. -7
Hope this helps :)
If you need an explanation just comment!
pleaseeee, helppp, mee ill give brainiest if correct
Answers
Answer: Reflection
Step-by-step explanation: reflection: when a figure flips over a line
equation of the circle centered at the origin and passing through the point equation of the circle centered at the origin and passing through the point (-4,0)
Answers
The equation of the circle centered at the origin and passing through the point (-4,0) is \(x^2+y^2=16\).
Equation of a circle
A circle may also be defined as a special kind of ellipse in which the two foci are coincident, the eccentricity is 0, and the semi-major and semi-minor axes are equal.
We know that,
Equation of the circle passing through the origin is given by:-
\(x^2+y^2=r^2\)
Where,
r is the radius of the circle, and
(x,y) are the coordinates of each point of the circle.
Hence, we can write,
The radius of the circle will be :-
\(\sqrt{(0-(-4))^2+(0-0)^2} =\sqrt{ 4^2+0^2} =\sqrt{16}=4 units\)
Hence, r = 4 units.
Hence, the equation of the circle is given by:-
\(x^2+y^2=16\)
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What is 7/8 + 8/45 =
Answers
Step-by-step explanation:
1.05277777778
hope it helps!
Answer:
1 19/360
Step-by-step explanation:
What we know:
The addends in this equation are 7/8 and 8/45.
First, find the LCM of 8 and 45. Since 8 and 45 don't have any common factors other than 1, just multiply the two numbers.
8 * 45 = 360
After that, find the equivalent fraction for both addends
7/8 * 45/45 = 315/360
8/45 * 8/8 = 64/360
Then, add the two new fractions together, and simplify if needed.
315/360 + 64/360 = 379/360 = 1 19/360
A bag contains 25 marbles. Some are red and the rest are black. There are 4 red marbles per black marble,
a. How many red marbles are in the bag?
Answers
Answer:
20 red marbles
Step-by-step explanation:
dwayne sold x pizzas. tamara sold x + 20. rueben sold 3( x + 20 ) pizzas
Answers
Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation.
Given, Tamara sold x + 20, Rueben sold 3( x + 20 ) pizzas, and Dwayne sold x pizzas.
We can simplify and combine the expressions for the total number of pizzas sold by each person:
Total pizzas sold = Dwayne's pizzas + Tamara's pizzas + Rueben's pizzas
= x + (x + 20) + 3(x + 20) [substituting the given expressions]
= x + x + 20 + 3x + 60
= 5x + 80
Therefore, the total number of pizzas sold by all three people is 5x + 80.
Tamara sold 20 more pizzas than Dwayne.Rueben Sold 3 times more pizza than Tamara.Learn more about expression here:
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Complete question:
Dwayne sold x pizzas. tamara sold x + 20. rueben sold 3( x + 20 ) pizzas.
State the comparison among all of three about the sold Pizzas.
If the first number is increased by 7 and the second number is reduced by 6 times, the sum of these numbers is 29.
If the first number is reduced by 5 and the second number is increased 2 times, the difference between the second and first number is 9.
Find these numbers.
Answers
Answer:
First number = 20
Second number = 12
Explanation:
Let the 1st number be x
Let the 2nd number be y
=====================
Condition 1
\(\sf \rightarrow x + 7 + \dfrac{y}{6} = 29\)
\(\rightarrow \sf x=-\dfrac{y}{6}+22\)
=====================
Condition 2
\(\rightarrow \sf 2y - (x - 5) = 9\)
\(\rightarrow \sf x = 2y -4\)
=====================
Substitute equations
\(\rightarrow \sf -\dfrac{y}{6}+22 = 2y-4\)
\(\rightarrow \sf y=12\)
=====================
Find value of 1st number
\(\rightarrow \sf x = 2y - 4\)
\(\sf \rightarrow x = 2(12) - 4\)
\(\rightarrow \sf x = 20\)
please help me!!!! marking brainliest to whoever gives me the right answer!!!
Answers
Answer:
A: 30
Step-by-step explanation:
PLEASE ANWSER ASAP
Below, a two-way table is given
for student activities.
Sports Drama Work Total
7
3
13
2
5
5
Sophomore 20
Junior
20
Senior
25
Total
Find the probability the student is a sophomore,
given that they are in work.
P(sophomore | work) = P(sophomore and work) = [? ]%
P(work)
Round to the nearest whole percent.
Answers
The probability of P(sophomore | work) is 0.30.
Given that:
Sports Drama Work Total
Sophomore 20 7 3 30
Junior 20 13 2 35
Senior 25 5 5 35
Total 65 25 10 100
The probability is given as,
P = (Favorable event) / (Total event)
The probability of P(sophomore | work) is calculated as,
P = (3/100) / (10/100)
P = 3 / 10
P = 0.30
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For the following polynomial function, (a) list all possible rational zeros, (b) find all rational zeros, and (c) factor P(x).
P(x)=10x³+17x²−97x−20
(a) Choose the possible rational zeros for P(x)=10x³+17x²−97x−20
A. 1,2,5,4,10,20,1/2,1/5,1/10,2/5,4/5,5/2
B. ±1,±2,±5,±4,±10,±1/2,±1/5,±1/10,±2/5,±4/5,±5/2
C. ±1,±2,±5,±4,±10,±20,±1/2,±1/5,±1/10,±2/5,±4/5,±5/2
D. -4,-1/5,5/2
Answers
The rational zeros of P(x) are -4/5, 1/2, and 5/2.The factored form of P(x) is (x + 4/5)(2x - 1)(2x - 5).
To find the possible rational zeros for the polynomial function P(x) = 10x³ + 17x² - 97x - 20, we can use the rational root theorem. According to the theorem, the possible rational zeros are given by the factors of the constant term (in this case, -20) divided by the factors of the leading coefficient (in this case, 10).
The factors of -20 are ±1, ±2, ±4, ±5, ±10, and ±20.
The factors of 10 are ±1, ±2, ±5, and ±10.
Combining these factors, we can write the possible rational zeros as follows: A. 1, 2, 5, 4, 10, 20, 1/2, 1/5, 1/10, 2/5, 4/5, 5/2
Therefore, the correct answer is (A).Next, to find the rational zeros of P(x), we can use synthetic division or polynomial long division to test each possible zero and check for any remainder. However, since the list of possible zeros is quite long, I will use a computer algebra system to find the rational zeros. Using a computer algebra system, we find that the rational zeros of P(x) = 10x³ + 17x² - 97x - 20 are: x = -4/5
x = 1/2
x = 5/2
Therefore, the rational zeros of P(x) are -4/5, 1/2, and 5/2.Finally, to factor P(x), we can use the found rational zeros and perform polynomial division. The quotient will be a quadratic polynomial. Let's perform the polynomial division:
(x + 4/5)(2x - 1)(2x - 5) = 10x³ + 17x² - 97x - 20
Therefore, the factored form of P(x) is (x + 4/5)(2x - 1)
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What are the approximate solutions to the equation-1+3=12x+5?
Answers
The value of x in this equation is -¼ so, the approximate solution to the equation "-1+3=12x+5" is (x = -¼).
As equation given is -1+3=12x+5
Thus, 2 = 12x+5
12x = -3
x = -3/12
x = -¼
Hence the value of x in this equation is -¼.
The equation for a linear equation in one variable is written as ax+b = 0, where a and b are two integers, and x is a variable. This equation has only one solution. For instance, the linear equation 2x+3=8 only has one variable. As a result, this equation has a single solution, x = 5/2. A linear equation with two variables, however, has two solutions.
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URGENT The table shows the value of a car over time that was purchased for $20,600, where x is years and y is the value of the car in dollars. A. Write and exponential regression equation for this set of data, rounding all coefficients to the nearest hundredth. B. Using the equation, determine the value of the car, to the nearest cent, after 15 years
Answers
The exponential equation is \(y=ab^x\). Let's look at some properties of this equation.
'b' must be greater than 0 and not equal to 1. b>0, b1.
What is exponential regression?The formula for exponential regression is \(y = ab^x\). This refers to the process of arriving at the best exponential curve equation for your dataset. This regression is very similar to linear regression and tries to find the best (straight line) line equation for a data set.Exponential regression refers to the process of obtaining the best exponential curve equation for a data set.A model that explains the process of doubling growth. The exponential equation is \(y=ab^x.\)Exponential functions are commonly used in life sciences and are used to represent the specific quantity that you want to model. B. Population size modeled over time. Plots of experimental data are usually plotted with time on the x-axis and quantity on the y-axis.To learn more about coefficient visit:
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The exponential equation is y = \(ab^{x}\) . Let's look at some properties of this equation.
'b' must be greater than 0 and not equal to 1. b>0, b1.
What is exponential regression?The formula for exponential regression is y = \(ab^{x}\) . This refers to the process of arriving at the best exponential curve equation for your dataset. This regression is very similar to linear regression and tries to find the best (straight line) line equation for a data set.
Exponential regression refers to the process of obtaining the best exponential curve equation for a data set.
A model that explains the process of doubling growth.
The exponential equation is y = \(ab^{x}\)
Exponential functions are commonly used in life sciences and are used to represent the specific quantity that you want to model. B. Population size modeled over time. Plots of experimental data are usually plotted with time on the x-axis and quantity on the y-axis.
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Consider equation (1) again, ln (wage) = β0 + β1 educ + β2 exper + β3 married + β4 black + β5 south + β6 urban +u
(a) Explain why the variable educ might be endogenous. How does this affect the estimated coefficients? Does the endogeneity of educ only affect the estimate of β2 or does it affect the coefficients associated with other variables?
(b) The variable brthord is birth order (one for the first-born child, two for a second-born child and so on). Explain why brthord could be used as an instrument for educ in equation (1). That is, does this variable satisfy the relevance and exogeneity conditions for it to be an appropriate instrument?
Answers
(a) The variable educ might be endogenous
(b) The variable brthord is birth order (one for the first-born child, two for a second-born child and so on) could be used as an instrument for educ in equation
a) The variable instruction might be endogenous because as compensation increases the income expansions which additionally make able to an individual more educating himself. So there is an opportunity for the instruction might be an endogenous variable.
The indigeneity may involve the 32 the coefficient of knowledge as well different variables like married, black, south, urban, etc.
b) There is a substantial high relationship exists between birth order and the status of teaching. it is more possible to have higher schooling with less the order of child-born and the birth order is autonomous of the error term as well with wage. So the variable "birth order" is a good variable to use as an agency for the endogenous variable instruction.
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Given m
n, find the value of x and y.
(37-18)
(8x+12)
m
(2X+18)
n
Answers
Answer:
Step-by-step explanation:
The two inside angles will sum to 180°.
The top to angles are equal.
Think about this as what if both of the parallel lines were intersected by a perpendicuar line. Every angle would be a right triangle 90°. The inside angles will sum to 180° and the opposite angles are again equal.
(2x + 18) + (8x + 12) = 180
10x + 30 = 180
10x = 150
x = 15
-------------------------
(3y - 18) = (8x + 12) x = 15
(3y - 18) = (8(15) + 12)
(3y - 18) = (120 + 12)
(3y - 18) = 132
3y = 132 + 18
3y = 150
y = 50
Find the % of change. Original price: $185 New price: $160
Answers
Answer:
-13.51
Step-by-step explanation:
work out the difference (increase) between the two numbers you are comparing. Then: divide the increase by the original number and multiply the answer by 100. % increase = Increase ÷ Original Number × 100.,
so, -13.51
true/false: if number has been defined as an int variable, both of the following statements will print out its value:
Answers
The following two statements will not necessarily print out the value of an int variable:
```python
print(number)
print(str(number))
```
The first statement will print out the value of the int variable `number`. The second statement will print out the string representation of the int variable `number`.
However, if the int variable `number` has not been defined before the print statements, then both statements will result in a NameError.
Find the length of a third side of a triangle given two sides.
please
Answers
Answer: # 4.) 9.4
#5.) 10.2 cm
#6.) 5 inches .
Step-by-step explanation: Assuming that a right triangle is expected, use the Pythagorean Theorem to calculate the third side: a² + b² = c²
\(5^{2}+8^{2}=89\) Then take the square root of 89. A calculator is handy for most of these!
√89 = 9.433981 . Round to 9.4
\(2^{2}+10^{2}=104\)
√104 = 10.1980 Round to 10.2 Remember to include the units, cm in the answer.
Memorize this one:
Given side lengths of 3 & 4, the hypotenuse is 5!
3² + 4² = 5² Called a "Pythagorean Triple"
9 + 16 = 25
The square on the hypotenuse is a perfect square of 5
No calculator necessary, and you are likely to see this ratio in other questions.
a rotating sprinkler can reach up to 14 feet through a 300 degree angle. find the total area covered by the sprinkler in one sweep. round to the nearest tenth. What is the area of the lawn, to the nearest square foot, that receives water from this sprinkler?
Answers
In one sweep, the area covered by the sprinkler is 77.19 sq ft (approx). The area of the lawn, to the nearest square foot, that receives water from this sprinkler is 616 sq ft (approx).
We know that a rotating sprinkler can reach up to 14 feet through a 300-degree angle. Area covered by the sprinkler in one sweep = area of the sector whose radius = 14 feet and angle = 300°Area of sector = (θ / 360) × πr²Where θ = 300°, r = 14 ftArea of sector = (300/360)× π(14)²= 77.19 sq ft (approx) Therefore, the area covered by the sprinkler in one sweep is 77.19 sq ft (approx).
We need to find the total area of the lawn that receives water from this sprinkler. The sprinkler rotates 360 degrees, so it will cover a full circle whose radius is 14 feet. Area of a circle = πr²= π(14)²= 615.752 sq ft (approx) Therefore, the area of the lawn, to the nearest square foot, that receives water from this sprinkler is 616 sq ft (approx).
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Which equation shows an example of the associative property of addition?
Answers
Answer:
(2+3)+4 = 2+(3+4) this is an example of associative property
1-x⁴
is it polynomial?
Answers
Which point will going to be in y=-4+6
Answers
Answer: (-4,22)
I got this by solving the equation on a graph.
A person spends 1/5 of his salary on rent, 3/7 on food, 1/3 on other expenses and saves the rest. If she earns $21,000 per month, how much does she save per year?
Answers
Answer:
$9600 saving / year
Step-by-step explanation:
1/5 of $21000 = 21000 / 5 = $4200 / month on rent
3/7 of $21000 = (21000 / 7) x 3 = $9000 / month on food (shocking right :) food is expensive)
1/3 of $21000 = 21000 / 3 = $7000 on other expenses / month
total savings/month = salary/month - rent/month - food/month - other expenses/month
total savings/month = 21000 - 4200 - 9000 - 7000
total savings/month = $800
BUT the question asks for savings per year. therefore, we must multiply the savings per month by total months per year (12)
800 x 12 = $9600
the person's total savings per year, with a salary of $21000 per month, is equal to $9600 per year
ista father has an age that is 2 years greater than four times her age.The sum of their ages is 57 yeasrs
Answers
Answer:
Ista is 11 years old. Her father is 46 years old.
Step-by-step explanation:
Let ista's age be x.
Fathers age=4x+2.
Fathers age + Ista's age = 57.
4x+2+x=57.
Combine like terms:
5x+2 -2 =57 -2
5x=55
x=11
Fathers age: 4(11)+2
= 46
If ista father has an age that is 2 years greater than four times her age. The sum of their ages is 57 years. Then ista age is 11 and her father age is 46.
What is Equation?Two or more expressions with an equal sign is called as equation.
Given that,
ista father has an age that is 2 years greater than four times her age.The sum of their ages is 57 yeasrs
Let the age of ista be x.
ista father has an age that is 2 years greater than four times her age.
it means father age = 2+4x
The sum of ista age and her father age is 57.
So x+(2+4x)=57
Add the common terms
5x+2=57
Subtract 2 from both sides
5x=55
Divide both sides by 5
x=11
Hence ista age is 11 and her father age is 46.
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Describe how to solve the following equation. Explain why you do each step. n/3=15
Answers
Answer:
Its n = 45
Step-by-step explanation:
Multiply both sides of the equation by 3 .
3 ⋅ \(\frac{n}{3}\) = 3 ⋅ 14
Simplify both sides of the equation.
n = 45
I hope this helps
if you could, feel free to mark me Brainliest it would be much appreciated :D
An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
The value of n for the equation n/3 = 15 is 45.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Example:
3x + 3 = 5
We have,
n/3 = 15
We need to find for n.
Multiply 3 into both sides of the equation.
3 x n/3 = 3 x 15
n = 45
Thus the value of n for the equation n/3 = 15 is 45.
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Find m<1 and m<2. Justify your answer.
Answers
Answer:
M<1 80 by the corresponding angles postulate
Step-by-step explanation:
I stayed up all night trying to figure out this question but I just can’t
This is sss congruence, just a heads up
Answers
Answer:
from what we're given on the drawing, ac and pt are congruent
and from the question format, ab is equal to pq, ac is equal to pr
what do symbols represent in algebra?
Answers
Answer:
One of the most common algebraic symbols is the use of x, y or another letter of the alphabet to indicate a variable or unknown quantity. Common symbols used in algebra also include those related to equality, inequality, factorials and organization, like braces, brackets and parentheses.
Give brainiest please ;-;
Answer:
different variables represent unknown numbers.
Step-by-step explanation:
For example the equation 5x = 15
X is a variable that represents an unknown number. To get the unknown number in the example you need to divide 15 by 5 and 5 by 5 to get X alone and then X will equal 3.
So 5×3=15
I hope this helps