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Ksju [112]
3 years ago
6

What is the slope of a trend line that passes through the points (1, 3) and (10, 25)?

Mathematics
2 answers:
marin [14]3 years ago
6 0

Answer:

C) 22/9

Step-by-step explanation:

I just took the quiz on edge

ololo11 [35]3 years ago
3 0

Answer:

y2-y1/x2-x1

25-3/10-1

22/9 is the slope since u can't simplify

Step-by-step explanation:

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F(x) = -2x + 4<br> g(x) = 2x^2 – 2x - 8<br> Find: (gof)(x)
icang [17]

Answer:

Step-by-step explanation:

f(x)=-2x+4\\g(x)=2x^2-2x-8\\(g\circ f)(x)=g(f(x))\\=g(-2x+4)\\=2(-2x+4)^2-2(-2x+4)-8\\=2(4x^2-16x+16)+4x-8-8\\=8x^2+(-32x+4x)+(32-8-8)\\=8x^2-28x+16

5 0
2 years ago
What is 70% of 880 equal?
Lostsunrise [7]
70% of 880 is 616.....
3 0
3 years ago
Read 2 more answers
In a right triangle, if the length of the hypotenuse is 10 and the length of one of the other sides is 6, what is the length of
Andrew [12]

Answer:

8

Step-by-step explanation:

10^2=100 6^2=36 100-36=64 sqrt64=8

4 0
3 years ago
HELP ASAP ASAP ASAP ASAP ASAP ASAP
pishuonlain [190]

Answer:

x = 35 feet.

Step-by-step explanation:

Given that,

The height of the person is 5 feet.

The height of the flag and the eye is (x-5) feet.

We can calculate using trigonometry.

\tan\theta=\dfrac{(x-5)}{30}\\\\\tan(45)=\dfrac{(x-5)}{30}\\\\(x-5)=30\\\\x=30+5\\\\x=35\ ft

So, the value of x is equal to 35 feet. The correct option is (c).

5 0
3 years ago
The standard IQ test has a mean of 97 and a standard deviation of 17. We want to be
densk [106]

Let's call our estimate x. It will be the average of n IQ scores. Our average won't usually exactly equal the mean 97.  But if we repeated averages over different sets of tests, the mean of our estimate the average would be the same as the mean of a single test,

μ = 97

Variances add, so the standard deviations add in quadrature, like the Pythagorean Theorem in n dimensions.  This means the standard deviation of the average x is

σ = 17/√n

We want to be 95% certain

97 - 5 ≤ x ≤ 97 + 5

By the 68-95-99.7 rule, 95% certain means within two standard deviations. That means we're 95% sure that

μ - 2σ ≤ x ≤ μ + 2σ

Comparing to what we want, that's means we have to solve

2σ = 5

2 (17/√n) = 5

√n = 2 (17/5)

n = (34/5)² = 46.24

We better round up.

Answer: We need a sample size of 47 to be 95% certain of being within 5 points of the mean

6 0
3 years ago
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