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Alex777 [14]
1 year ago
14

Question 18 of 25 What is tan 45°?

Mathematics
1 answer:
Artist 52 [7]1 year ago
5 0

Answer:

Tan 45° = 1.

it is always one.

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Find the length of side a.<br> 15<br> 9<br> O A. 6<br> B. V 306<br> C. 12<br> D. 144
Leni [432]

Answer:

12

Step-by-step explanation:

A² + B² = C²

9² + B² = 15²

81 + B² = 225

B² = 144

B = 12

8 0
2 years ago
Read 2 more answers
SAT verbal scores are normally distributed with a mean of 433 and a standard deviation of 90. Use the Empirical Rule to determin
laila [671]

34% of the scores lie between 433 and 523.

Solution:

Given data:

Mean (μ) = 433

Standard deviation (σ) = 90

<u>Empirical rule to determine the percent:</u>

(1) About 68% of all the values lie within 1 standard deviation of the mean.

(2) About 95% of all the values lie within 2 standard deviations of the mean.

(3) About 99.7% of all the values lie within 3 standard deviations of the mean.

$Z(X)=\frac{x-\mu}{\sigma}

$Z(433)=\frac{433-\ 433}{90}=0

$Z(523)=\frac{523-\ 433}{90}=1

Z lies between o and 1.

P(433 < x < 523) = P(0 < Z < 1)

μ = 433 and μ + σ = 433 + 90 = 523

Using empirical rule, about 68% of all the values lie within 1 standard deviation of the mean.

i. e. ((\mu-\sigma) \ \text{to} \ (\mu+\sigma))=68\%

Here μ to μ + σ = \frac{68\%}{2} =34\%

Hence 34% of the scores lie between 433 and 523.

8 0
3 years ago
Solve x + 5 &gt; 8.<br> The solution is ____
professor190 [17]
What do you mean?
Expand your question
4 0
2 years ago
Read 2 more answers
(X+2)(4x-3) multiply place in descending powers
VMariaS [17]

Multiplying out the equation (x + 2)(4x - 3) and arranging in descending powers order gives us the quadratic form as; 4x² + 5x - 6

<h3>How to expand quadratic equations?</h3>

We want to expand the quadratic equation given as;

(x + 2)(4x - 3)

Multiplying out gives us;

4x² + 8x - 3x - 6

⇒ 4x² + 5x - 6

Thus, we can conclude that multiplying out the equation (x + 2)(4x - 3) and arranging in descending powers order gives us the quadratic form as; 4x² + 5x - 6

Read more about Quadratic equations at; brainly.com/question/1214333

#SPJ1

7 0
1 year ago
What is the distributive property of 2 times 8
malfutka [58]
2*8 using <span>distributive property
= 2(3+5)
= 6+ 10
= 16</span>
5 0
3 years ago
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