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3 years ago

Solve for x. Round answer to the nearest tenth (0.1).

Mathematics

2 answers:

Otrada [13]3 years ago

8 0

Answer:

9.9 is your answer

Step-by-step explanation:

by using Pythagoras law

p²+b²=h²

7²+7²=x²

x=√{2×49)=7√2or 9.9 is your answer

ICE Princess25 [194]3 years ago

3 0

Answer:

x = 9.9

Step-by-step explanation:

This is a isosceles triangle, with sides measurements (1 , 1 , √2), and the angles being (45° - 45° - 90°). Note that the side measurements of 1 is opposite of that of a 45°, while the measurement of √2 is opposite of that of 90°.

In this case, multiply. The side measurement of 1 has 7.

1 x 7 = 7

In the same, you must multiply 7 with √2

x = 7 * √2 = 7√2.

√2 = ~1.414

7 x 1.414 = 9.898

Round to the nearest tenth:

9.898 rounded to the nearest tenth = 9.9

x = 9.9

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Eddi Din [679]

Answer:

x = - 4

Step-by-step explanation:

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2 years ago

BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!

mash [69]

Part 1:

Given that a store had 235 MP3 players in the month of January and that every month, 30% of the MP3 players were sold and 50 new MP3 players were stocked in the store.

The number of MP3 players in the store after the previous months sale is given by 0.7f(n - 1) and the number of MP3 players in the store after new MP3 were added is 0.7f(n - 1) + 50.

Therefore, the recursive function that best represents the number of MP3 players in the store f(n) after n months is given by f(n) = 0.7 x f(n − 1) + 50, f(0) = 235, n > 0

Part 2:

The average rate of change of a function from a to b is given by

$average \ rate \ of \ change= \frac{f(b)-f(a)}{b-a}$

Given that the equation showing the value of her investment after x years is given by

$f(x)=500(1.05)^x$

Thus, the average rate of change of the value of Sophia's investment from the second year to the fourth year is given by

$Average \ rate \ of \ change= \frac{f(4)-f(2)}{4-2} \\ \\ = \frac{500(1.05)^4-500(1.05)^2}{2} = \frac{607.75-551.25}{2} \\ \\ = \frac{56.5}{2} =28.25$

Therefore, the average rate of change of the value of Sophia's investment from the second year to the fourth year is 28.25 dollars per year.

7 0

3 years ago

Read 2 more answers

Leo paid $2400 in interest on an amount borrowed for 10 years at a 4% annual simple interest rate. How much did Leo borrow?

hodyreva [135]

Answer: $6000

Explanation:

1) Simple interest means that the interests are calcualted over the original amount borrowed and they are the same every year.

2) yearly interest = interest / number of years = $2400 / 10 = $240

3) the yearly interest equals the amount borrowed times the simple intereset rate:

=> $240 = A * 4%

=> $240 = A * 0.04

=> A = $240 / 0.04 = $6000

You can do the same in one step:

interest = A * simple interest rate * number of years

=> A = interest / [simple interest rate * number of years] = $2400 / [4% * 10]

A = $2400 / (0.04 * 10) = $2400 / 0.4 = $ 6000.

And that is the answer: he borrowed $6000

6 0

3 years ago

Answer as a fraction. Do not include spaces in your answer.1.9x(1/4)

Keith_Richards [23]

Answer:

1/36

Step-by-step explanation:

3 0

2 years ago

Can someone please answer?? It is already late

Wittaler [7]

Answer:

Jonelle's

Step-by-step explanation:

Cube is made up of square faces. The sides of a square equal.

The general formula of volume= Area of base X the height of the object

The area of the base of a cube (square) is calculated with the formula: Length X Length = L to the power of 2.

The area of the base must be multiplied by the height of the object to get the volume.

*You already know that all the dimensions on a cube are equal.

Therefore, the height of the cube will be equal to the Length of the square.

Length to the power of two(this is the area of the base) X Length (the length is equal to the height because the object is a cube)

=Length to the power of three.

3 0

3 years ago