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2 years ago

Ms. Carlson has $7,145.Ms.lee has $3.799

1 answer:

4 0

Okay well Ms. Carlson has more money than Ms. Lee, about $7,142.2 more than her. PART A ANSWER: Ms. Carlson. Together they have $7,148.799. to estimate it to the closest tens it would be $7,150. PART B ANSWER:$7,150

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Spencer made a quilt for his cousin's doll. The quilt had a 7x7 array of different color square patches. If each patch is 1 3/4

Damm [24]

Answer:

$\frac{2401}{16}$ square inches

Step-by-step explanation:

Given:

The quilt made by Spencer had a 7×7 array of different color square patches such that each patch is $1\frac{3}{4}$ in long.

To find: the area of the whole quilt

Solution:

Side of each quilt = $7(\frac{3}{4})=7(\frac{7}{4})=\frac{49}{4}$

Quilt is in the form of a square such that area of square is given by $(side)^2$

Therefore, area of quilt = $(side)^2=(\frac{49}{4})^2 =\frac{2401}{16}$ square inches

3 0

3 years ago

Evaluate each expression if =3/4, = 8, = −2 and = 0.4.<br> −| x^3+2y^4 |

MakcuM [25]

Answer:

x^-13

Step-by-step explanation:

5 0

3 years ago

A researcher surveyed 220 residents of a city about the number of hours they

olga55 [171]

Answer:

Margin of error of 0.0485 hours.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.025 = 0.975$ , so Z = 1.96.

Now, find the margin of error M as such

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

In this question:

$\sigma = 0.35, n = 220$

The margin of error is of:

$M = z\frac{\sigma}{\sqrt{n}}$

$M = 1.96\frac{0.35}{\sqrt{200}}$

$M = 0.0485$

Margin of error of 0.0485 hours.

5 0

2 years ago

Need the answer for x and y

Hunter-Best [27]

Answer:

x = 6

CD = 59

Step-by-step explanation:

10x - 1 = 8x + 11

combine like terms:

2x = 12

x = 6

CD = 8(6) + 11 = 59

5 0

3 years ago

Find 48% of 30. Please help

baherus [9]

Answer:

14.4 would be the answer hope this is helpful

Step-by-step explanation:

14.4/30= 48%

4 0

2 years ago

Read 2 more answers