Answer: The answer would be $20, because 20% 5 times is 100% and 4 times 5 is 20
Is this right and can someone show me the explanation plz?and how to do the problem I have to show my work
Answer:
yes it is.
x = 4 and y = -3
Step-by-step explanation:
Solve simultaneously using elimination method:
equation 1 - equation 2
3x + y = 9 equation 1
-2x + y = 5 equation 2
_________
x = 4
plug 4 into any of the 2 equations and solve for y.
3(4) + y = 9
12 + y = 9
12-12 + y = 9-12
y = -3
Given that events A and B are independent with P(A) = 0.68 and
P(A and B) = 0.544, determine the value of P(B), rounding to the nearest
thousandth, if necessary.
The value of P (B) = 0.8
The probability of event A, P (A) = 0.68
The probability of events A and B, P (A ∩ B) = 0.544
The probability of event B, P (B) = ?
We know that Independent events are those where the probability of A event occurring doesn't affect the probability of B event. In other words, they don't depend upon each other and are independent.
By formula;
P (A ∩ B) = P (A) . P (B)
By substituting the values to the above equation, we get;
0.544= 0.68 * P (B)
P (B) = 0.8
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Evaluate the expression, given functions f , and g :
f(x) =7x−4
g(x) =11−x2
3f(1)−4g(−2)=
Number
The solution of the function 3f(1) - 4g(-2) is -19.
How to solve functions?The functions can be solved as follows;
f(x) = 7x - 4
g(x) = 11 - x²
Therefore, let's solve the composite function as follows:
A composite function is generally a function that is written inside another function.
Hence,
3f(1) - 4g(-2) = ?
f(1) = 7(1) - 4 = 7 - 4 = 3
g(-2) = 11 - (-2)² = 11 - 4 = 7
Therefore,
3f(1) - 4g(-2) = 3(3) - 4(7) = 9 - 28 = -19
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plz help me with these two questions ( show work plz)
Step-by-step explanation:
3. 7 = -2y + 4
2y = 4 - 7
2y = -3
y = -1.5
5. -3x - 2 = -17
17 - 2 = 3x
15 = 3x
3x = 15
x = 15/3
x = 5
It's in the picture !
The position of √17 between 4 and 5, which is nearer 5, and the location of 6, which is between 2 and 3, which is nearer 2.
What is Number line?A visual representation of real numbers in a linear manner is a number line. It is a straight line that is divided into intervals or segments, each of which stands for a distinct real number value.
Number lines can be vertical or horizontally oriented, and they can also have a positive or negative orientation. Positive numbers often extend to the right or up, whereas negative numbers typically extend to the left or down. The origin of the number line, or zero, is typically situated in the middle of the line.
The number line is a crucial tool in mathematics since it offers a means of representing numerical relationships visually and carrying out fundamental arithmetic operations. For instance, positive and negative motions along a number line can be used to depict addition and subtraction, respectively, with positive movements denoting addition and negative movements denoting subtraction. On a number line, multiplication and division can alternatively be shown as repeated addition or subtraction.
If we have a number line with the proper markings, we may indicate where the square roots of 17 and 6 are located as follows:
To begin, determine the approximate square root values:
√17 is between 4 and 5, since 4² = 16 and 5² = 25.
√6 is between 2 and 3, since 2² = 4 and 3² = 9.
Place the number √17 closer to 5, between 4 and 5.
Place the number √6 between the numbers 2 and 3, closer to 2.
Since 6 and 17 are not integers and their values are not evenly spaced, it should be noted that their markings will not be evenly spaced on the number line.
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Number line attached below,
Find the present value of an annuity which pays ` 200 at the end of each 3 months for 10 years assuming
money to be worth 5% converted quarterly?
(a) ` 3473.86
(b) ` 3108.60
(c) ` 6265.38
(d) None of thes
The present value of the annuity is approximately `7032.08. The correct answer is option (d) None of these.
To find the present value of an annuity, we can use the formula:
PV = PMT * (1 - (1 + r)^(-n)) / r
Where PV is the present value, PMT is the periodic payment, r is the interest rate per period, and n is the number of periods.
In this case, the periodic payment is `200, the interest rate is 5% (or 0.05) converted quarterly, and the number of periods is 10 years, which equals 40 quarters.
Plugging in these values into the formula, we get:
PV = 200 * (1 - (1 + 0.05)^(-40)) / 0.05
Simplifying the equation, we find:
PV ≈ 200 * (1 - 0.12198) / 0.05
PV ≈ 200 * 0.87802 / 0.05
PV ≈ 35160.4 / 0.05
PV ≈ 7032.08
Therefore, the present value of the annuity is approximately `7032.08.
None of the provided answer options (a), (b), or (c) match this result. The correct answer is (d) None of these.
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Can someone please explain how I do this? I think it looks familiar, but I can’t remember it.
To find the equation of a line in slope-intercept form (y=mx+b) you follow the next steps:
1. Find the slope (m). Use two points in the line in the next formula:
\(m=\frac{y_2-y_1}{x_2-x_1}\)Points: (0,40) and (8,0)
\(m=\frac{0-40}{8-0}=\frac{-40}{8}=-5\)2. Identify the yintercept: It is the value of the function when it cross the y-axis, or the value of the function when x=0
y-intercept in the given line is 40.
Then, you have the next equation in slope-intercept form for the given line:\(y=-5x+40\)A football field is 160 feet wide and 360 feet long. The coach wants to put spray paint along the diagonal of the field.
We can represent this as a diagram:
To find the diagonal, we can consider the right-angled triangle:
Using Pythagorean Theorem to find x, we have
\(\begin{gathered} x^2=160^2+360^2 \\ x^2=25600+129600 \\ x^2=155200 \\ x=\sqrt[]{155200} \\ x=393.95\approx394\text{ fe}et \end{gathered}\)The length of the diagonal is 394 feet.
what is the volume of a cone with a height of 27 cm and a radius of 13cm
Answer:
V≈4778.36cm³
Step-by-step explanation:
Answer:
1/3πr^2h.
1/3×3.142×13^2×27.
1/3×14336.946
4778.982cm^3
9+3+x-y; use x=6, and y=2
Answer:
If x=6 & y=2 then 9+3+x-y wil be
9+3+6-2
=12+6-3
=18-3
=15
Answer:
Given, x=6 and y=2
so the expression we have 9+3+x-y will become,
9+3+6-2 !
and by adding 9 & 3 we will get,
=12+6-3
Now adding 12 & 6 we get,
=18-3
now by subtracting 3 from 18 we get,
=15
HELP ITS DUE TODAY!
A baker is baking a giant cookie in the shape of a equilateral triangle what is the area of the cookie if the base is 17 inches and the height is 10 inches
Answer:
85 square inches.
Step-by-step explanation:
The area of a triangle can be found by the formula \(1/2bh\), assuming b is the base and h is the height.
If b is 17 inches and h is 10 inches:
\(1/2(17)(10)\)
\(1/2(170)\)
\(A = 85\)
Therefore, the area is 85 square inches.
permieter of 2 rectangles is 54 cm.
work out the area of a square
The Area of Square is 81 cm².
let the side of the square which is length for both rectangles be a.
let the width of rectangle be x and y.
So, x+ y= a
sum of perimeters= 54
2 (a +x ) + 2 (a+ y) = 54
2a+ 2x + 2a+ 2y = 54
2a + 2a + 2(x+ y) = 54
4a + 2 (a) = 54
4a + 2a = 54
6a = 54
a= 54/6
a= 9
So, area of square
= 9 x 9
= 81 cm²
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what is my name tell now
Answer:
Vishwas Gulati
Step-by-step explanation:
In a classroom, 100 plastic fish are in a tub. The tub is hidden from the student view. Some fish are green, and the rest are yellow. The students know that there are 100 fish, but they don’t know how many of each color there are. The students go fishing, each time, picking a random fish from the tub, recording its color, and throwing the fish back in the tub. At the end of the day, 65 fish have been chosen, 12, green and 53 yellow. What is the best estimate you can give for the number of green fish in the number of yellow fish in the tub? Describe how to calculate this best estimate, and explain why your method of calculation makes sense in a way that a seventh grader my understand. Is your best estimate necessarily accurate? Why or why not?
The best estimate for the number of fish is that there are 82 yellow fish and 18 green fish, which you can calculate using the rule of three. This estimate is expected to be accurate.
What is the estimated number of fish of each color?This can be calculated using a rule of three as follows. Let's start with the yellow fish:
53 = 65
x = 100
53 x 100 / 65 = 82 yellow fish
Green fish:
12 = 65
x = 100
12 x 100 / 65= 18 green fish
Is this estimate accurate?This estimate is expected to be accurate; however, there might be small differences in real life such as 80 yellow fish and 20 green fish.
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Can someone help me please I put the picture
Answer:
The correct answer for this question is D
find by a digit to make the number divisible by 3 1234?
A digit to make the number divisible by 3 is by adding the digit 2 to the number 1234.
To make the number 1234 divisible by 3, we can find the sum of its digits and determine if it is divisible by 3. If the sum of the digits is divisible by 3, then the original number is also divisible by 3.
Let's calculate the sum of the digits in 1234:
1 + 2 + 3 + 4 = 10
The sum of the digits is 10. Since 10 is not divisible by 3, we need to add or subtract a digit to make the sum divisible by 3.
To find the digit we need to add or subtract, we can use the fact that the difference between the original sum and the next multiple of 3 is the required digit.
The next multiple of 3 greater than 10 is 12 (12 - 10 = 2). Therefore, we need to add 2 to the number 1234 to make it divisible by 3.
1234 + 2 = 1236
we obtain the number 1236, which is divisible by 3.
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At Gabrielle's Beading Boutique, 9 out of the 10 beads on clearance are plastic. What percentage of beads on clearance are plastic?
Write your answer using a percent sign (%).
Answer:
The percentage of beads on clearance that are plastic is 90%
Step-by-step explanation:
9/10 = 90/100
The answer has to be out of 100. So, you would multiply 9 times 10 to get 90 and 10 times 10 to get 100
90/100 = 90%
Hope this helps :)
(6.2 x 10²) x (3.5 x 10³)
Answer:
\(21.7 x 10^5\)
Step-by-step explanation:
(6.2 x 10²) x (3.5 x 10³)
First, multiply the coefficients: 6.2 x 3.5 = 21.7.
Then, add the exponents: 10² x 10³ = 10^(2+3) = 10^5.
Therefore, the result is 21.7 x 10^5.
Answer:
3286000
Step-by-step explanation:
Sadam earns 1.5% commission on homes that he sells. Last month, he sold $3,000,000 worth of homes. How much money did he earn last month?
Thank you for your time
Answer:
m∠5= 130°
Explanation:
If lines A and B are parallel we can assume that the angles in the same locations are equal
Answer:
130 is the answer
Step-by-step explanation:
Well it's definitely obtuse (look at the photo)
I hope I helped!
I hope you get the green tick.
Please mark Brainliest if you do!
Compare with using >, =, or <
answer for 100 points
:D
The numbers are compared with the inequality symbols as follows:
a. 3 > -3.
b. 12 < 24.
c. -12 > -24.
d. 5 = - (-5).
e. 7.2 > 7.
f. -7.2 < 7.
g. -1.5 = -3/2.
h. -4/5 > -5/4.
i. -3/5 = -6/10.
j. -2/3 < 1/3.
What are the inequalities?The inequality symbols used in this problem are defined as follows:
>: greater than.=: equals to.<: less than.The observations to some items are given as follows:
c. -12 > -24 -> for negative numbers, the lower the absolute value of the number, the greater it is.d. 5 = - (-5) -> applying the parenthesis, we have that: - (-5) = 5, as the negative before the parenthesis changes the sign inside the parenthesis.g. -1.5 = -3/2. -> the fraction is converted to decimal dividing the numerator of -3 by the denominator of 2.More can be learned about inequalities at https://brainly.com/question/25275758
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Solve the systems by substitution.
y = -x - 32
y = 5x
We can solve this system of equations by substitution. Since both equations are solved for y, we can set them equal to each other and solve for x.
y = -x - 32 ...(1)
y = 5x ...........(2)
Substituting (1) into (2), we get:
-x - 32 = 5x
Simplifying and solving for x, we have:
6x = -32
x = -32/6
x = -16/3
Now that we know x, we can substitute it back into either equation to solve for y. Let's use equation (2):
y = 5x
y = 5(-16/3)
y = -80/3
Therefore, the solution to the system of equations is (x, y) = (-16/3, -80/3).
6x^2=-3x+1 to the nearest hundredth
The solutions to the quadratic equation 6x² = -3x + 1 to the nearest hundredth are -0.73 and 0.23.
What are the solutions to the quadratic equation?Given the quadratic equation in the question:
6x² = -3x + 1
To solve the quadratic equation 6x² = -3x + 1, we can rearrange it into standard form, where one side is set to zero:
6x² + 3x - 1 = 0
Now we can solve the equation using the quadratic formula, which states that for an equation in the form ax² + bx + c = 0, the solutions for x are given by:
\(x = \frac{-b \±\sqrt{b^2-4ac} }{2a}\)
Here; a = 6, b = 3, and c = -1.
Let's substitute these values into the quadratic formula:
\(x = \frac{-b \±\sqrt{b^2-4ac} }{2a}\\\\ x= \frac{-3 \±\sqrt{3^2-4\ *\ 6\ *\ -1} }{2*6}\\\\x = \frac{-3 \±\sqrt{9+24} }{12}\\\\x = \frac{-3 \±\sqrt{33} }{12}\\\\x = -0.73, \ x=0.23\)
Therefore, the values of x are -0.73 and 0.23.
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PLEASE HELP ME DONT ANSWER IF YB
(Surface Area of Cylinders MC)
A makeup artist purchased some lipsticks and wants to wrap them individually with gift wrap. Each lipstick has a radius of 0.4 inch and a height of 2.2 inches. How many total square inches of gift wrap will the makeup artist need to wrap 5 lipsticks? Leave the answer in terms of π.
10.4π square inches
4.8π square inches
2.08π square inches
1.76π square inches
Answer:
A would be correct
Step-by-step explanation:
the answer is A.
The medians of triangle XYZ intersect at Point P. If PY=12, what is VY?
Answer:
18
Step-by-step explanation:
PY = \(\frac{2}{3}\) YV
\(\frac{2}{3}\) YV = 12
VY = 18
Find the missing length for the pair of similar figures
Answer:
Bb
Step-by-step explanation:
Answer:
B. 4.5 mStep-by-step explanation:
Corresponding sides have same ratio:
4/9 = 2/aa = 2*9/4a = 4.5 mCorrect option is B
Darella has 3 buckets of water on her back porch. Each bucket contains 1 3/4 gallons of water.
How many quarts of water are contained altogether in the three buckets? Enter the answer as a whole number or decimal in the box below.
Answer:
Step-by-step explanation:
34
Answer:
34
Step-by-step explanation:
make e the subject
e-5=2f
Answer:
e-5=2f
take '-5' to the other side where '2f' is
e=2f+5
Julie bikes 30 weekends each year.
On the weekends when she bikes,
she rides 9 kilometers. How many
kilometers does she bike in four years?
A large totem pole in the state of Washington is 100 feet tall. At a particular time of day, the totem pole casts a 249-foot- long shadow. Find the measure of ZA to the nearest degree. 100 ft 249
Answer:
22°
Step-by-step explanation:
arctan(A) = 100/249
∡A = 22°