Answer:
x(y + 5) = x(y) + x(5)
Step-by-step explanation:
Multiply the x to the variable and number in the parenthesis.
Can also be written xy + x5.
Write "yes" or "no" to state whether or not the given side lengths would form a right triangle.
Answer:
yes, yes, no
Step-by-step explanation:
28squared+34squared=2809 find the square root and it equals 53
4.5squared+6squared=56.25, square root equals 7.5
20squared+30 squared=1300, square root is 36.5, so its wrong
$10,527 is invested, part at 12% and the rest at 10%. If the interest earned from the amount invested at 12% exceeds the interest earned from the amount invested at 10% by $814.00, how much is invested at each rate? (Round to two decimal places if necessary.)
investment at 12 % = $8485
investment at 10% = $2042
What does investing mean?
The act of investing entails using money now in the hopes that it will appreciate over time.
An investment is putting resources—such as time, money, effort, etc.—to work in the expectation of receiving a return that is greater than the initial investment.
Let x = investment at 12%
y = investment at 10%
x + y = 10,527
given interest earned from 12% exceed
10% by 814
0.12x = 0.1y + 814
y = 10527 - x
0.12x = 0.1( 10527 - x ) + 814
0.12x = 1052.7x - 0.1x + 814
0.22x = 1866.7
x = 1866.7/0.22
x = 8485
y = 10527 - 8485 = 2042
investment at 12 % = $8485
investment at 10% = $2042
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Ethan bought four packages of pencils after he gave pencils to his friends he had 40 pencils left over how many pencils are in the package
Answer:
the answer is 48
Step-by-step explanation:
He had 40 pencils left after he gave away 8, so originally, he had 40 + 8 pencils, which is 48.
Now, he bought 4 packages, which had a total of 48 pencils, so divide 48 by 4, which is 12. He had 12 pencils in each package.
To determine the solution arithmetically, first add 8 to 40, then divide 48 by 4.
To determine the solution algebraically, set up and solve the equation 40 = 4x - 8.
Each package contained 12 pencils.
Which expression is equivalent to 4/9×7?
B
It is recommended that there be at least 12 gallons of water in the aquarium
for each fish. Using this rule, what is the maximum number of fish the
Watsons could purchase for the aquarium?
The computation shows that the maximum number of fish the Watsons could purchase for the aquarium is 144.
How to calculate the maximum number of fishes?From the complete information, it was recommended that there will be at least 12 gallons of water in the aquarium for each fish.
The maximum number of fishes will be:
= 1728/12
= 144
In conclusion the number of fishes will be 144.
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Which parent function is represented by the graph
A the absolute value parent function
B quadratic parent function
C the linear parent function
D and exponential parent function
Answer:
D—exponential parent function.
Step-by-step explanation:
An exponential parent function shows exponential growth, which means growth that continues, as we can see happening on the graph.
Here's a chart that may help you:
£5-2 x 0.81=
Answer for school and explanation please. would be great help
Answer:
3.38
Step-by-step explanation:
first do the multiplication
2×0.81
= 1.62
then the subtraction
5- 1.62= 3.38
10. The box plot shows donations in dollars to charity.
Describe the shape of the distribution.
Donations to Charity ($)
20 40 60 80 100 120 140 160 180 200 220
The given shape of the distribution is not symmetric.
Given that, a box plot shows donations in dollars to charity.
We need to describe the shape of the distribution.
Donations to Charity ($) =
20 40 60 80 100 120 140 160 180 200 220
so, as we can see,
The shape of the distribution is not symmetric since the lengths of each box and whisker are not the same. There is an outlier at 220.
Hence, the given shape of the distribution is not symmetric.
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PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Net 3 i think
Step-by-step explanation:
sorry if wrong
Answer:
It is net 3 so the third one
At a bicycle shop, all the bicycles are on sale for $25 off the regular price. If p represents the regular price in dollars of a bicycle, which expression gives the sale price in dollars?
A. 25p
B. – 25p
C. p – 25
D. p + 25
Answer:
C
Step-by-step explanation:
P-25
How many ounces of coffee can be bought for $3.49 if 2 pounds cost $17.98?
Fractions are written as a ratio of two integers. 0.36pounds can be bought for $3.49
Ratio and proportionsFractions are written as a ratio of two integers
If 2 pounds of coffee cost $17.98, then;
2 pounds = $17.98
In order to determine the coffee $3.49 can buy,
x = $3.49
Determine the ratio
2/x = 17.98/3.49
6.98 = 17.98x
x = 6.98/17.98
x = 0.36pounds
Hence 0.36pounds can be bought for $3.49
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match the collum A the correct answer to colum B 1/7÷8/3
Answer:
ye ye
Step-by-step explanation:
sin ti no me va bien
Answer:
\(\boxed{\frac{3}{56} }\)
Step-by-step explanation:
\(\frac{1}{7} /\frac{8}{3} =\frac{1}{7} *\frac{3}{8} =\frac{3}{56}\)
For each value of w, determine whether it is a solution to 4w+9>-19.
Is it a solution?
Answer:
1. Yes
2. Yes
3. No
4. No
Step-by-step explanation:
4(-2) +9>-19 Multiply 4 and -2
-8+9>-19 Add -8 and 9
1 > -19 1 is greater than -19
4(5) +9>-19
20+9>-19
29>-19 29 is greater than -19
4(-10) +9>-19
-40+8>-19
-32>-19 -32 is not greater than -19
4(-7) +9>-19
-28+9>-19
-19>-19 -19 is not greater than -19
ANSWER THIS PLEASE!! (NONSENSE REPORT!!)
Answer:
1 ans: Zero is not positive or negative. Even though zero is not a positive number, it's still considered a whole number. Zero's status as a whole number and the fact that it is not a negative number makes it considered a natural number by some mathematicians.
2 ans: I don’t know
281.7 + .736 help me please
Answer:
282.463
Step-by-step explanation:
Answer: 282.436
Step-by-step explanation:
281.7
+ 0.736
282.436
Show step by step
6.1 x 7.4
Answer:
ya the answer is 45.14 we just have to multiply them as normal multiplication and then once the ans comes start pointing the answer from the right
Step-by-step explanation:
mark as brainliest plzzzz
A ball is thrown upward from a height of 4 feet with an initial speed of 80 ft./sec. When is it 68 feet high?
With given speed, the ball reaches a height of 68 feet approximately 1.11 seconds after it is thrown upward.
What exactly is speed?
Speed is a measure of how fast an object is moving. It is defined as the distance traveled by an object divided by the time taken to travel that distance.
The formula for speed is given by:
speed = distance / time
Speed is usually expressed in units of distance per unit time, such as miles per hour, kilometers per hour, meters per second, or feet per second.
Now,
To solve this problem, we can use the kinematic equation for the vertical motion of an object:
y = y0 + v0t - (1/2)gt²
where y is the vertical displacement of the object, y0 is its initial height, v0 is its initial velocity, g is the acceleration due to gravity (which is approximately -32.2 ft/sec²), and t is the time elapsed.
In this case, we want to find the time at which the ball reaches a height of 68 feet, so we can set y = 68 and solve for t. We also know that the initial height is y0 = 4 and the initial velocity is v0 = 80. Thus, we have:
68 = 4 + 80t - (1/2)(-32.2)t²
Simplifying and rearranging, we get a quadratic equation:
-16.1t² + 80t - 64 = 0
Using Quadratic formula
t = (-b ± √(b² - 4ac)) / 2a
where a = -16.1, b = 80, and c = -64. Plugging in these values, we get:
t = (-80 ± √(80² - 4(-16.1)(-64))) / 2(-16.1)
Simplifying, we get:
t = (-80 ± √(10256)) / 32.2
we find that the two possible values of t are approximately 1.11 seconds and 4.95 seconds. However, we know that the ball must be at a height of 68 feet on its way up and again on its way down, so we are only interested in the positive solution for t that corresponds to the ball's first ascent. Thus, the ball reaches a height of 68 feet approximately 1.11 seconds after it is thrown upward.
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QUICK ANSWER THIS PLEASE What is the constant of proportionality between the corresponding areas of the two pieces of wood?
3
6
9
12
Answer:
Step-by-step explanation:
D
Which of the following tables shows a valid probability density function? Select all correct answers. Select all that apply: O x P(X = x) 0 0.37 1 0.06 2 0.01 3 0.56 O x P(X = x) 0 3/8 1 3/8 2 1/4O x P(X = x) 0 1/8 1 1/8 2 1/8 3 3/8 4 1/4O x PX =x) 0 0.03 1 0.01. 2 0,61 3 0.31 4 0.21 O x P(X = x) 0 1/10 1 3/10 2 4/5 3 -1/5
The tables that show a valid probability density function, are tables 1 to 3
How to determine the tablesFrom the question, we have the following parameters that can be used in our computation:
Table of values
For a table to show a valid probability density function, the following must be true
Sum of P(X = x) = 1
Using the above as a guide, we have the following:
Table 1: Sum = 0.37 + 0.06 + 0.01 + 0.56 = 1
Table 2: Sum = 3/8 + 3/8 + 1/4 = 1
Table 3: Sum = 1/8 + 1/8 + 1/8 + 3/8 + 1/4 = 1
Table 4: Sum = 0.03 + 0.01 + 0.61 + 0.31 + 0.21 = 1.17
Table 5: Sum = 1/10 + 3/10 + 4/5 + 1/5 = 1.4
Hence, the tables are tables 1 to 3
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Factor each polynomial. Look for a GCF first.
2x²-8k-90
O
2 (x-9) (x - 5)
2 (x + 9) (x + 5)
2 (x − 9) (x + 5)
2 (x + 9) (x - 5)
Answer:
Step-by-step explanation:
First, you could factor 2 out of the whole thing. The result would be 2(x^2-4x-45). Now we find the factors of 45 which are 1, 45, 5, 9, 15, 3. We have to find the pair that adds up to 4, and multiply to get 45. After some guess and check, we can find that 5 and 9 are those numbers. Now we have to get the right signs. Since the result is a negative number for -8k, and -90, the number that is a negative must be less than the other negative. -9<-5, so the answer would be 2(x-9)(x+5)
Anna is a microbiology student. She was doing research on optimum temperature for the survival of diffrent strains of bacteria. Studies showed that bacteria x needs an optimum temperature of -31°C while bacteria Y needs an optimum temperature of -56°C. What is the temperature diffrence?
The temperature difference between the optimum temperatures of bacteria X and Y is 25°C.
To find the temperature difference between the optimum temperatures of bacteria X and Y, we subtract the temperature of bacteria Y from the temperature of bacteria X.
Temperature difference = Optimum temperature of bacteria X - Optimum temperature of bacteria Y
Temperature difference = -31°C - (-56°C)
When we subtract a negative number, it is equivalent to adding its positive value. Therefore, -(-56°C) is the same as +56°C.
Temperature difference = -31°C + 56°C
To add these temperatures, we need to consider the sign of the result. In this case, we have a negative temperature (-31°C) and a positive temperature (+56°C). When adding numbers with different signs, we subtract the smaller absolute value from the larger absolute value and use the sign of the number with the larger absolute value.
Absolute value of -31°C = 31°C
Absolute value of +56°C = 56°C
Since 56°C > 31°C, the result will have a positive sign.
Temperature difference = 56°C - 31°C = 25°C
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Help please this is urgent
Answer:
All of the above they are multiples
Step-by-step explanation:
7th grade math help me plzzzz
Answer:
D
subtracting a -15 from a -7 in pherentasics i guess you get a negative
Please help me in this math problem
Answer:
Step-by-step explanation: well, you will more than likely get it at least 60%-80% of the time! If this doesn't help i can try to explain in a lot more detail unless someone does for me!
Please help
What is 1. answer abc
What is 2. abcd
What is E and F
Also what is x
Help
Answer:
Step-by-step explanation:
1 × a = a
a² = a*a ; a³ = a*a*a .....
\((\frac{a}{b}) ^{n} = \frac{a^{n} }{b^{n} }\)
(1).
(a). \(7^{5}\)
(b). \((\frac{1}{7}) ^{6}\) = \(\frac{1}{7^{6} }\)
(c). \((9.3)^{9}\)
(2).
(e). \((\frac{1}{2} )^{4} =\frac{1}{2^{4} }\) = \(\frac{1}{2*2*2*2}\) = \(\frac{1}{16}\)
(f). \((\frac{1}{3} )^{2}\) = \(\frac{1}{3}\) × \(\frac{1}{3}\) = \(\frac{1}{9}\)
(3).
x² = 30² + 16² = 900 + 256 = 1156 = 34² ⇒ x = 34 units
The brain volumes (cm³) of 20 brains have a mean of 1085.2 cm³ and a standard deviation of 125.6 cm³. Use the
given standard deviation and the range rule of thumb to identify the limits separating values that are significantly low or
significantly high. For such data, would a brain volume of 1386.4 cm³ be significantly high?
If the brain volumes (cm³) of 20 brains have a mean of 1085.2 cm³ and a standard deviation of 125.6 cm³. For such data: it is significantly low for a brain because 1386.4 cm³ is less than the upper limit.
How to find the lower and upper limits?Mean = 1085.2 cm³
Standard deviation = 125.6 cm³
Hence,
Lower limit = Mean - 2 x Standard deviation
Lower limit =1085.2 - 2 x 125.6
Lower limit =1161.2 - 251.2
Lower limit =910
Upper Limit = Mean + 2 x Standard deviation
Upper Limit = 1161.2 + 2 x 125.6
Upper Limit =1161.2 +251.2
Upper Limit =1412.4
The limit of values is from 910 to 1412.4.
A value below 910 will be is considered low and a value above 1412.4 will be considered high
Therefore 1386.4 cm³ is less than the upper limit. Thus it is significantly low for a brain.
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Simplify your answer as much as possible.
By using the substitution method, we will see that the value of y is 23.
How to solve the system of equations?Here we have a system of linear equations, the system is:
y - x = 11
x = 12
The second equation is trivial, it just gives the value of x. Then we can use the substitution method and replace it in the first equation, then we will get:
y - 12 = 11
Now we can solve this for y, we will get:
y = 11 + 12
y = 23
That is the value of y.
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What is the volume in cubic centimeters of the figure below?
Answer:
so that you will multiply 15 * 4.
Step-by-step explanation:
15*4 = 60 now you divide 60 by 4 and the answer will be 15.
What is the ratio
18 vocabulary words learned in 2 hours; 27 vocabulary words learned in 3 hours
5. Julia is playing a computer game. To enter a new quest she has
to pay a "tax" of 2.5 points, but she expects to gain 75 points.
For each quest, how many points can she gain overall?
The number of points gained overall by Julia playing the game is 30 point
How to determine the number of points gained overall?From the question, we have the following parameters that can be used in our computation:
Tax paid for a new quest = 2.5 points
Total points gained playing the game = 75 points
The above parameters can be represented as
The number of points gained overall = Total points gained playing the game/Tax paid for a new quest
Substitute the known values in the above equation, so, we have the following representation
The number of points gained overall = 75/2.5
Express as a correct fraction
So, we have the following representation
The number of points gained overall = 750/25
Evaluate the quotients
So, we have the following representation
The number of points gained overall = 30
Hence, the number of points gained overall =is30
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