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2 years ago

Please help any tips greatly appreciated:)

Mathematics

1 answer:

Anton [14]2 years ago

4 0

Answer:

Step-by-step explanation:

For this question we have the hypotonouse and need the opposite side

so out of SOH, CAH, TOA we will use SOH

sin(52)=x/19

19sin(52)=x

x=14.9722

which rounds to

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The lifetime for a certain type of tre has been shown to be five years the mean) with a standard deviation of 6 months. In a nor

olga_2 [115]

Answer:

2.28%

Step-by-step explanation:

mean = 5 years = 60 months

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X = number of years the tires will last

P = probability of ...

z = z-score

6 years = 72 months

z = (# of months - mean) / standard deviation

z = (72 - 60)/6

z = 12/6

z = 2

P(X > 72) = 1 - P(X < 72)

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(using a Standard Normal Probabilities Table we can see that P(z < 2) = .9772)

So:

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6 0

2 years ago

Need help for question 8 and 9. I need the equation that’s passes through the points!

dsp73

Answer:

Step-by-step explanation:

Question 8

Let the equation of a line passing through two points $(x_1,y_1)$ and $(x_2,y_2)$ is given by,

y = mx + b

Here, m = slope and y-intercept = b

Since, m = $\frac{y_2-y_1}{x_2-x_1}$

For two points (1, 4) and (5, 8),

m = $\frac{8-4}{5-1}$

m = 1

Equation will be,

y = (1)x + b

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y = x + 3

Question 9

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By substituting the value of 'm' in the equation,

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$y=-\frac{3}{2}x+12$

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2 years ago

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lana [24]

Answer:

false

Step-by-step explanation:

X squared minus 5 is not necessarily prime

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2 years ago

A dilation by a factor of 7/8 maps triangle ABC to triangle XYZ. Segment BC has a length of 4 cm.

anastassius [24]

I believe the answer should be 3 and 1/2 which is 3.5 because I did the factor 7/8 times 4 and I got 3 and 1/2 I’m not sure

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2 years ago

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Alexus [3.1K]

Answer:

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Step-by-step explanation:

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2 years ago

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