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blondinia [14]
3 years ago
7

What two numbers are added together and equal -8.

Mathematics
2 answers:
Snowcat [4.5K]3 years ago
7 0
-4 + -4 equals -8 or -5 + -3
Anastasy [175]3 years ago
4 0

Answer: You might need to be more descriptive, there's a lot of numbers that could be added together to equal -8.

-4 + -4 = -8.

-6 + -2 = -8.

etc.

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Please help me with this:(
dolphi86 [110]

Answer:

Y = 32.7°

Step-by-step explanation:

We will apply the Cosine law in the given triangle XYZ,

x = 90 ft

y = 55 ft

z = 50 ft

We have to find the measure of angle Y.

y² = x² + z² - 2xzCosY

(55)² = (90)² + (50)² - 2(90)(50)cosY

3025 = 8100 + 2500 - 9000.cosY

9000.cosY = 10600 - 3025

cosY = \frac{7575}{9000}

        = 0.84167

Y = \text{cos}^{-1}(0.84167)

Y = 32.68 ≈ 32.7°

Therefore, measure of angle Y = 32.7°

5 0
3 years ago
Please help, Algebra 1
Svetach [21]
3px = 2q(r-5x)
distribute
2qr - 10qx
3px = 2qr - 10qx

To solve for x
add 10qx to both sides
3px + 10qx = 2qr
factor out x
x(3p+10q) = 2qr
divide both sides by 3p+10q to isolate x
x = 2qr / <span>(3p+10q)

Hope this helps :)</span>
3 0
3 years ago
PLEASE HELP!!
Angelina_Jolie [31]

Answer:

B) Median

C)he median is between 80 and 90.

D) The mean test score will increase by 2.

Step-by-step explanation:

8 0
3 years ago
What is 10 to the 4 power divided by 10 to the 19 power?
xxTIMURxx [149]
10 to the negative 15 (10^-15) power
8 0
3 years ago
Given x : y: z = 5:1:3 and z - y = 28. find the value of x + y​
Vera_Pavlovna [14]

Answer:

x + y = 84

Step-by-step explanation:

Given

x : y : z = 5 : 1 : 3, then

\frac{x}{y} = 5 ( multiply both sides by y )

x = 5y ←

and \frac{y}{z} = \frac{1}{3} ( cross- multiply )

3y = z

Substitute z = 3y into z - y = 28

3y - y = 28

2y = 28 ( divide both sides by 2 )

y = 14 ← ←

Substitute y = 14 into x = 5y

x = 5 × 14 = 70 ← ←

Substitute y = 14 into z - y = 28

z - 14 = 28 ( add 14 to both sides )

z = 42 ← ←

Thus x = 70, y = 14 and z = 42

Hence x + y = 70 + 14 = 84

5 0
3 years ago
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