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3 years ago

Someone please help me!!!!11

Mathematics

1 answer:

serious [3.7K]3 years ago

4 0

The U stands for union. Combine A and B

Hope that helps!!

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Tara runs an amusement park ride and needs to count the people who get on the ride. At the beginning of her shift, 132 people ha

DanielleElmas [232]

Y= the number riders over time
x= hours into Tara's shift
y= 33x + 132

6 0

3 years ago

Read 2 more answers

Haley is camping and needs to go from the campground to the waterfall. She hikes 3 miles north and 7 miles east. What is the sho

miskamm [114]

Answer:

7.61 miles

Step-by-step explanation:

Given that,

Haley hikes 3 miles north and 7 miles east.

We need to find the shortest distance from the campground to the waterfall. Let the distance is D.

It can be calculated as follows :

$D=\sqrt{3^2+7^2}\\D=7.61\ miles$

So, the shortest distance from the campground to the waterfall is 7.61 miles.

3 0

3 years ago

Explain how to use multiplication to find

Sindrei [870]

A fraction x/y is a ratio between two numbers x and y.

The ratio is preserved if both x and y are scaled up or down by the same number n.

This means you can obtain any fraction equivalent to x/y by multiplying both x and y by n, i.e. (n*x)/(n*y).

Then we have 1/4 = (2*1)/(2*4) = 2/8, for example.

5 0

3 years ago

A triangle has sides of lengths 9,7, and 12. Is it a right triangle? Explain.

Alex Ar [27]

Answer:

A triangle has sides of lengths 9,7, and 12 is not a right triangle .

7 0

3 years ago

How much difference do a couple of weeks make for birth weight? Late-preterm babies are born with 34 to 36 completed weeks of ge

stiks02 [169]

Answer:

a) 0.3277

b) 0.0128

Step-by-step explanation:

We are given the following information in the question:

N(2750, 560).

Mean, μ = 2750

Standard Deviation, σ = 560

We are given that the distribution of distribution of birth weights is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

a) P (less than 2500 grams)

P(x < 2500)

$P( x < 2500) = P( z < \displaystyle\frac{2500 - 2750}{560}) = P(z < -0.4464)$

Calculation the value from standard normal z table, we have,

$P(x < 2500) = P(z < -0.4464) = 0.3277 = 32.77\%$

b) P ((less than 1500 grams)

P(x < 1500)

$P( x < 1500) = P( z < \displaystyle\frac{1500 - 2750}{560}) = P(z < -2.2321)$

Calculation the value from standard normal z table, we have,

$P(x < 1500) = P(z < -2.2321) = 0.0128 = 1.28\%$

3 0

3 years ago