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3 years ago

Structions: In each sentence, write the correct form of the adverb shown in parentheses. Then write a sentenc

Mathematics

1 answer:

Nana76 [90]3 years ago

8 0

Answer:

Step-by-step explanation:

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A survey of 102 high school students on the amount of money they spend on prom yields an average of $893. Assuming the populatio

Mnenie [13.5K]

Answer:

Margin of error $=E=[69]$

Step-by-step explanation:

Data provided in the question:

$\bar{x}=\$\ 893$

$\sigma=\$\ 450$

$n=102$

At $88 \%$ confidence level the $z$ is.

$\alpha=1-88 \%=1-0.88=0.12$

$\frac{\alpha}{2}=\frac{0.12}{2}=0.06$

$z_{\frac \alpha 2}=20.06=1.555$

$\text { Margin of error }=E=Z_{\frac \alpha 2} \times \frac{\sigma}{\sqrt{n}}$

$E=1.555 \times \frac{450}{\sqrt{102}}$

Margin of error $=E=[69]$

7 0

3 years ago

franklin deposited $75 in a no-interest bank account when he opened it. After that, he deposits $50 per month in the account. As

Furkat [3]

To solve this question the equation is
175=75+50m
Where m is the number of months
Solve the equation for m
175-75=50m
100=50m
M=100÷50
M=2 months

8 0

3 years ago

which of the following represents the area of a rectangle whose length is x-6 and whose width is x-8?

blagie [28]

X^2 -14x +48.
Multiply the length by width

3 0

4 years ago

2.4m log is cut into lengths into the ratio 7 : 5. Find the longer length in cm.

sergeinik [125]

Answer:

140 centimeters.

Step-by-step explanation:

Hello!

A 2.4 meter log is split into the ratio 7:5. Each unit part is one x-increment, so the log is split into 7 x-increments and 5 x-increments.

Find the longer length:

2.4 into 7:5
2.4 = 7x + 5x
2.4 = 12x
x = 2.4/12
x = 0.2

Now, we must find the longer length, 7x.

7x
7(0.2)
1.4

The longer length is 1.4 meters, but we want it in cm.

There are 100 centimeters in a meter.

1.4 meters = 1.4 * 100
1.4 meters = 140 centimeters

The longer length is 140 centimeters.

7 0

2 years ago

Can u help me with my workk

eimsori [14]

You knew where to place the target based on the coordinates (-5,4). Starting from the origin (0,0), we know how many units to move to horizontally and vertically. We move the target 5 units to the left, because it is negative. We move the target 4 units up, because it is positive. (x,y)

6 0

3 years ago