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2 years ago

A rectangle has a perimeter of 18. The height of the rectangle is 4 cm. What is the area of the rectangle?

2 answers:

6 0

20 cm, I think
The perimeter is 18 and the height is 4 cm.

4 cm x 2 = 8
We are multiplying it by two because there are two side in a rectangle that are the same height

18 - 8 = 10
We are finding the length of the rectangle
10\2 = 5
The length of the rectangle is 5

5 x 4 = 20
That is the area

Snezhnost [94]2 years ago

5 0

Answer:

Step-by-step explanation:

Perimeter of rectangle= 2l+2h so 2l+2(4)=18. SO 2l=10. l=5

Area=bh

(5)(4)=20cm

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Kimmy saving accounts has a balance of $76.23 in June by September her balance is 5 time as much as her June balance between Sep

hammer [34]

Answer:

Kimmy balance in December will be $545.21.

Step-by-step explanation:

Given:

Balance in account in June = $76.23

Now Given, by September her balance is 5 time as much as her June

It means that Balance in account till September is 5 times Balance in account in June.

framing in equation form we get;

Balance in account till September = $5\times \$76.23 = \$381.15$

Also Given:

Balance Deposited in account between September and December = $87.83

Now We need to find balance till December.

Kimmy balance till December will equal to sum of Balance in account in June and Balance in account till September and Balance Deposited in account between September and December.

framing in equation form we get;

Kimmy balance till December = $\$76.23+ \$381.15+\$87.83 = \$545.21$

Hence Kimmy balance in December will be $545.21.

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2 years ago

Which statements describe the graph of y = 3√x-1+2 ? Check all that apply.

Reptile [31]

Answer:

The correct options are A, D and E.

Step-by-step explanation:

We are given the function $y=\sqrt[3]{x-1} +2$

From the graph below, we see that,

Domain and range of the function is the set of all real numbers.

<em>As y-intercept is the point where the graph of the function crosses y-axis.</em>

That is, y-intercept is obtained when x= 0.

So, on substituting, we have,

$y=\sqrt[3]{0-1} +2$

i.e. $y=-1+2$

i.e. y= 1

Thus, the y-intercept is (0,1).

<em>Also, x-intercept is the point where the graph of the function crosses x-axis.</em>

That is, x-intercept is obtained when y= 0.

So, on substituting, we have,

$0=\sqrt[3]{x-1} +2$

i.e. $-2=\sqrt[3]{x-1}$

i.e. $-8=x-1$

i.e. x= -7

Thus, the x-intercept is (-7,0).

Hence, the correct options for the function are,

A. The graph has a domain of all real numbers.

D. The graph has a y-intercept at (0, 1)

E. The graph has an x-intercept at (–7, 0).

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3 years ago

Read 2 more answers

SOMEONE ANSWER THIS QUICK!!

7nadin3 [17]

Answer:

a= 9,15 b= 10,4

Step-by-step explanation:

5 0

3 years ago

A local factory uses a manufacturing process in which 70% of the final products meet quality standards and 30% are found to be d

frosja888 [35]

<span>Answer:
a manufacturing process has a 70% yield, meaning that 70% of the porducts are acceptable and 30% are defective. If three of the products are randomly selected, find the probability that all of them are acceptable. ---
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8 0

3 years ago

The means and mean absolute deviations of sidney’s and phil’s grades are shown in the table below. means and mean absolute devia

DochEvi [55]

The expression that represents the ratio of the difference of the two means to Sidney’s mean absolute deviation is given by: Option B: 4/3.28

<h3>What is mean absolute deviation?</h3>

Mean absolute deviation is the average of the absolute deviation of each observation from their mean, for a considered set of observations.

For this case, the table of mean and mean absolute deviation is given as:

$\begin{array}{ccc}&Mean&M.A.D.\\\text{Sidney}&82&3.28\\\text{Phill}&78&3.96\end{array}$

(M.A.D refers to Mean Absolute Deviation).

So, difference in their mean is 82 - 78 = 4

Absolute deviation for Sidney is 3.28

Thier ratio is: 4/3.28

Thus, the expression that represents the ratio of the difference of the two means to Sidney’s mean absolute deviation is given by: Option B: 4/3.28

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2 years ago