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tigry1 [53]
2 years ago
13

Find the value of X.

Mathematics
2 answers:
ASHA 777 [7]2 years ago
8 0
The value of x is 15
zhuklara [117]2 years ago
6 0

Answer:

15

Step-by-step explanation:

use pathagorean theorem

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How many weeks when the amount of money Hannah owed her friend was 18$
Naya [18.7K]
I believe it’s 3.5 but I could totally be wrong I’m not much help at all
3 0
2 years ago
What is the average (arithmetic mean) of the first 90 measurements in a certain list of 92 measurements? (1) the average of the
marishachu [46]
The sum of all the measurements is just the average times the number.

\bar x = \frac{1}{n} \sum_{i=1}^n x_i

\sum_{i=1}^n x_i = n \bar x

So if the average of all 92 is 7 the sum of those is 92 \times 7

The average of the last two is 7.2 so their sum is 2 \times 7.2

That means the sum of the first 90 is 92 \times 7 - 2 \times 7.2

so the average of the first 90 is

 \dfrac{92 \times 7 - 2 \times 7.2}{90} = 6.99556 cm



7 0
3 years ago
Given the function f(x) = 2|x + 6| -4, for what values of x is f(x) = 6?
photoshop1234 [79]

Answer:

f(x) = 2|x + 6|-4

6=2|x + 6|-4

10= 2|x + 6|

divide by 2

5=|x + 6|

x = 5-6

x = -1

so x should be -1

4 0
3 years ago
Changle. Show all work. Round each length to the nearest tenth and each angle to the
Sedaia [141]

Answer:

Part 1) BC=12.2\ units

Part 2) m\angle A=55^o

Part 3) m\angle C=35^o

Step-by-step explanation:

Part 1) Find AC

we know that

In the right triangle ABC of the figure

Applying the Pythagorean Theorem

AC^2=AB^2+BC^2

substitute the given values

AC^2=7^2+10^2

AC^2=149\\AC=12.2\ units

Part 2) Find the measure of angle A

we know that

In the right triangle ABC

tan(A)=\frac{BC}{AB} ----> by TOA (opposite side divided by the adjacent side)

substitute the values

tan(A)=\frac{10}{7}

using a calculator

m\angle A=tan^{-1}(\frac{10}{7})=55^o

Part 3) Find the measure of angle C

we know that

In the right triangle ABC

m\angle A+m\angle C=90^o ----> by complementary angles

substitute the given value

55^o+m\angle C=90^o

m\angle C=90^o-55^o=35^o

8 0
3 years ago
In the figure alongside, show that<br>ZX + Zz = 180°, without the actual<br>measurement,​
valkas [14]

Answer:

1. {xx < 13} 3. {yy < 5} 5. {tt > -42} 7. {dd ≤ 4}

9. {kk ≥ -3} 11. {zz < -2} 13. {mm < 29}

15. {bb ≥ -16} 17. {zz > -2} 19. {bb ≤ 10}

21. {qq ≥ 2} 23. ⎧

⎨

⎩

ww ≥ - _7

3

⎫

⎬

⎭

Lesson 0-7

1. {(−15, 4), (−18, −8), (−16.5, −2),

Step-by-step explanation:

ZX + Zz = 180°, without the actual

measu

5 0
3 years ago
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