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3 years ago

6x-y in a verbal expression

Mathematics

1 answer:

Zolol [24]3 years ago

8 0

Answer:

six x minus y.

Step-by-step explanation:

In changing it to verbal expression, you are essentially changing all the signs into words. Write it like how you will say it.

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Need help thank you very much

Zarrin [17]

Answer:

a) - 9/2 or -0,45

b) - 3/5 or -0,6

c) -4

d) 1

e) -2

d) 0

Step-by-step explanation:

4 0

3 years ago

A survey of 90 men found that an average amount spent on St. Patrick's day of $55 with a standard deviation of $18. A similar su

dem82 [27]

Answer:

The value of the test statistic is 4.70.

Step-by-step explanation:

The hypothesis for this test can be defined as follows:

<em>H</em>₀: Men do not spend more than women on St. Patrick's day, i.e. μ₁ = μ₂.

<em>H</em>ₐ: Men spend more than women on St. Patrick's day, i.e. μ₁ > μ₂.

The population standard deviations are not known.

So a <em>t</em>-distribution will be used to perform the test.

The test statistic for the test of difference between mean is:

$t=\frac{\bar x_{1}-\bar x_{2}}{\sqrt{\frac{s^{2}_{1}}{n_{1}}+\frac{s^{2}_{2}}{n_{2}}} }$

Given:

$\bar x_{1}=55\\s_{1}=18\\n_{1}=90\\\bar x_{1}=44\\s_{1}=16\\n_{1}=86$

Compute the value of the test statistic as follows:

$t=\frac{\bar x_{1}-\bar x_{2}}{\sqrt{\frac{s^{2}_{1}}{n_{1}}+\frac{s^{2}_{2}}{n_{2}}} }=\frac{55-44}{\sqrt{\frac{15^{2}}{90}+\frac{16^{2}}{86} }}=4.70$

Thus, the value of the test statistic is 4.70.

7 0

3 years ago

A spool of rope contains 79 yards of rope. How many 4-foot pieces of rope can be cut from the spool? How much rope is left ov

mart [117]

<h2>Answer:</h2>

59 can be cut from the spool.

3 Inches is left over.

<h2>Step-by-step explanation:</h2>

237 feet in 79 yards.
237 / 4 = 59.25
59 is the whole number, .25 is what is left over.
.25 feet is 3 inches.

8 0

3 years ago

Read 2 more answers

FINAL EXAM PLEASSE HELP

krok68 [10]

f(3) = -4 as 3 lies between 2 and 5

3 0

2 years ago

After a new $28,000 car is driven off the lot, it begins to depreciate at a rate of 18.9% annually.

Rainbow [258]

Answer:

Step-by-step explanation:

We get 0.811 as our depreciating value because we take 18.9% and turn it into a decimal. Then, we subtract that from 1. If we did 0.189 instead, it would depreciate at a rate of 81.1% annually.

5 0

2 years ago