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ollegr [7]
3 years ago
6

Solve for x 90°, 45°, and x°

Mathematics
1 answer:
statuscvo [17]3 years ago
8 0

Answer:

x= 45

Step-by-step explanation:

In this diagram, there is an angle that is split into 2 angles.

The angle is a 90 degree angle. We know this because of the little square in the corner that denotes a right angle.

Therefore, the 2 angles inside of the right angle must add to 90 degrees. The 2 angles that make up the right angle are x and 45.

x+45=90

We want to find x. We need to get x by itself. 45 is being added on to x. The inverse of addition is subtraction. Subtract 45 from both sides.

x+45-45=90-45

x= 90-45

x=45

The measure of angle x is 45 degrees.

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garik1379 [7]

Answer:

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Step-by-step explanation:

4 0
3 years ago
H(x) = 2x^2 =4; Find h(-10)
bogdanovich [222]

For this case we have the following function:

h (x) = 2x ^ 2 + 4

We must find the value of the function when x = -10

So, replacing we have:

h (-10) = 2 (-10) ^ 2 + 4\\h (-10) = 2 (100) +4\\h (-10) = 200 + 4\\h (-10) = 204

Thus, the value of the function is 204 when x = -10

Answer:

h (-10) = 204

3 0
3 years ago
The mean caloric intake of an adult male is 2800 with a standard deviation of 115. To verify this information, a sample of 25 me
erma4kov [3.2K]

Answer:

Step-by-step explanation:

We would use the t- distribution.

From the information given,

Mean, μ = 2950

Standard deviation, σ = 115

number of sample, n = 25

Degree of freedom, (df) = 25 - 1 = 24

Alpha level,α = (1 - confidence level)/2

α = (1 - 0.98)/2 = 0.01

We will look at the t distribution table for values corresponding to (df) = 24 and α = 0.01

The corresponding z score is 2.492

We will apply the formula

Confidence interval

= mean ± z ×standard deviation/√n

It becomes

2950 ± 2.492 × 115/√25

= 2950 ± 2.492 × 23

= 2950 ± 57.316

The lower end of the confidence interval is 2950 - 57.316 =2892.68

The upper end of the confidence interval is 2950 + 57.316 = 3007.32

The solution is correct.

8 0
3 years ago
Rob 15 foot wire into 8 equal pieces .About how long is each piece?
Alexxx [7]
I think you can use division for this question: 15ft/8 pieces = 1.875 ft
8 0
3 years ago
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The options are <,>,=
mixer [17]

Answer:

<

Step-by-step explanation:

3 0
3 years ago
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