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barxatty [35]
3 years ago
12

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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Answer:

x = - 4

Step-by-step explanation:

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3 0
2 years ago
BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!
mash [69]
Part 1:

Given that a<span> 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.

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

Therefore, the </span><span>recursive function that best represents the number of MP3 players in the store f(n) after n months is given by </span><span>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 </span><span>equation showing the value of her investment after x years is given by

f(x)=500(1.05)^x

Thus, </span><span>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 </span><span>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.</span>

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
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