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3 years ago

LOOK AT THE PICTURE TO ANSWER

Mathematics

2 answers:

lesantik [10]3 years ago

7 0

I think it’s 15 I’m not sure tho

Wittaler [7]3 years ago

3 0

D) -65
Hope this helps

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PLS HELP ASAP

MrMuchimi

Answer 38.6

Step-by-step explanation:

21 x .84 = 17.64

17.64 + 21 = 38.64

6 0

3 years ago

Michael pays $30 to enter a state fair, plus $4 for each ride. Which of the following

lawyer [7]

Answer:

The required equation is:

$y=4x+30$

So, Option C is correct option.

Step-by-step explanation:

Entry fee for fair = $30

Cost of one ride = $4

Cost of x rides = $4x

If y represents the total cost the equation will be sum, of entree fee and cost of x rides i.e

$y=4x+30$

The required equation is:

$y=4x+30$

So, Option C is correct option.

3 0

3 years ago

Express in kg: 3470 grams<br>4 kg 8 g

Airida [17]

Answer:

Step-by-step explanation:

This Makes no sense but this is 4kg and 8g converted to Kg :

4kg - 8g = 4.008 kg

8 0

3 years ago

If you have ordered pairs (4, 6) and (2, 3). WHAT IS THE SLOPE OF THE LINE?

tangare [24]

Answer:

3/2

Step-by-step explanation:

Okay, I can represent this equation as rise over run

the coordinates 4,6 are subcoordinates 1

y: 6 - 3 = 3

x: 4 - 2 = 2

Since it is RISE over run then Y is the numerator and X is the denominator.

So the slope is 3/2.

5 0

3 years ago

In a random sample of 45 newborn babies, what is the probability that 40% or fewer of the sample are boys. (Use 3 decimal places

erastova [34]

Answer:

$z= \frac{p- \mu_p}{\sigma_p}$

And the z score for 0.4 is

$z = \frac{0.4-0.4}{\sigma_p} = 0$

And then the probability desired would be:

$P(p$

Step-by-step explanation:

The normal approximation for this case is satisfied since the value for p is near to 0.5 and the sample size is large enough, and we have:

$np = 45*0.4= 18 >10$

$n(1-p) = 45*0.6= 27 >10$

For this case we can assume that the population proportion have the following distribution

$p \sim N(p,\sqrt{\frac{p(1-p)}{n}})$

Where:

$\mu_{p}= \hat p = 0.4$

$\sigma_p = \sqrt{\frac{p(1-p)}(n} =\sqrt{\frac{0.4(1-0.4)}(45}= 0.0703$

And we want to find this probability:

$P(p$

And we can use the z score formula given by:

$z= \frac{p- \mu_p}{\sigma_p}$

And the z score for 0.4 is

$z = \frac{0.4-0.4}{\sigma_p} = 0$

And then the probability desired would be:

$P(p$

7 0

3 years ago

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