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3 years ago

HOW DO I DO NUMBER 7?!?? WHATS THE ANSWER?!?!??????

Mathematics

1 answer:

hichkok12 [17]3 years ago

5 0

Simple actually. The 1000 is the starting price the -20 is the losing of value per week and the w stands for the number of weeks.

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Can someone help please ! Answer correct for brainliest and also get a thanks ! :)

Alona [7]

The standard deviation of the set is 5.2

To find standard deviation, we take the square root of the variance.

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4 years ago

The width of a rectangle is only 15% of its length. If the perimeter of the rectangle is 46, what is the length

sveta [45]

Answer:

20 units

Step-by-step explanation:

Let the length be x. According to the question,

Length = x
Width = 15% of the length

➝ Width = 15% of the length

➝ Width = 15/100x

➝ Width = 3/20x

We have the perimeter of the rectangle that is 46 units.

$\longrightarrow \sf {Perimeter_{(Rec.)} = 2(L + W) } \\$

$\longrightarrow \sf {46= 2\Bigg \lgroup x + \dfrac{3}{20}x \Bigg \rgroup } \\$

$\longrightarrow \sf {46= 2\Bigg \lgroup \dfrac{20x + 3x}{20} \Bigg \rgroup } \\$

$\longrightarrow \sf {46= 2\Bigg \lgroup \dfrac{23x}{20} \Bigg \rgroup } \\$

$\longrightarrow \sf {\dfrac{46}{2}= \dfrac{23x}{20}} \\$

$\longrightarrow \sf {23= \dfrac{23x}{20}} \\$

$\longrightarrow \sf {23 \times 20 = 23x} \\$

$\longrightarrow \sf {460= 23x} \\$

$\longrightarrow \sf {\cancel{\dfrac{460}{23}} = x} \\$

$\longrightarrow \underline{\boxed{ \bf {20\; units = x}}} \\$

Therefore, length of the rectangle is 20 units.

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4 years ago

The surface area for a rectangular prism with a square base is SA = 2s2 + 4sh.

Dafna11 [192]

(2)(2)(2) + (4)(2)(4)
8 + 32
40

6 0

3 years ago

Read 2 more answers

Which of the following statements must be true based on the diagram below?(Diagram is not to scale.)FDEO EF is a segment bisecto

8_murik_8 [283]

From the diagram given;

ABCD is a quadrilateral;

Line |EF| bisects the line |AD| and line |CD|,

Thus, from the given options;

LINE |EF| is a segment bisector is the only correct option.

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1 year ago

PLEASE HELL I WILL GIVE BRAINLIEST I GOT POINTS PLEASE IK BEGGING U

xenn [34]

Answer:

28800

Step-by-step explanation:

mutply 9 times 12 times 15 time 20

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3 years ago