3 years ago

Can anyone help me?pls

Mathematics

1 answer:

Svetach [21]3 years ago

7 0

Answer:

Step-by-step explanation:

you arent clarify what the question is asking for

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The area of a rectangle is 42 ft squared, and the length of the rectangle is 5 ft more than twice the width. Find the dimensions

stira [4]

Answer:

<h3>Length = 12 ft</h3>

Width = $\frac{7}{2} ft$

Step-by-step explanation:

Given,

Area of rectangle = $42 \: {ft}^{2}$

Width = X

Length = 2x + 5

Now,

$x(2x + 5) = 42$

$2 {x}^{2} + 5x = 42$

$2 {x}^{2} + 5x - 42 = 0$

$2 {x}^{2} + 12x - 7x - 42 = 0$

$2x(x + 6) - 7(x + 6) = 0$

$(2x - 7)(x + 6) = 0$

Either

$2x - 7 = 0$

$2x = 0 + 7$

$2x = 7$

$x = \frac{7}{2}$

Or,

$x + 6 = 0$

$x = 0 - 6$

$x = - 6$

Negative value can't be taken.

So, width = $\frac{7}{2} ft$

Again,

Finding the value of length,

Length = $2x + 5$

$2 \times \frac{7}{2} + 5$

$7 + 5$

$12$

Length = 12 ft

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3 years ago

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Match each scenario with the type of correlation it shows.

Arisa [49]

Answer:

The number of items bought and the checking account balance - negative correlation

The height of a baseball player and the number of hits made- no correlation

The time spent practicing and the number of free throws made- positive correlation

Step-by-step explanation:

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4 years ago

First: Four more than the product of a number and three

miss Akunina [59]

4+3x
2x-5
2(8+x)

2x-5=4+3x
-x-5=4
-x=9
x=-9

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What is the measure of the missing angle?

Genrish500 [490]

Answer:

The answer is 51.

Step-by-step explanation:

180-(92+37)= 51

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3 years ago

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Which is the area of a rectangle TYOC with vertices T(-6,6), Y(2,10), O(4,6), and C(-4,2)?

Ne4ueva [31]

A diagram helps.

Diagonal TO divides the rectangle into two triangles of base 10 and height 4. The area of the two of them together (the area of the rectangle) is 10*4 = 40.

The area of rectangle TYOC is 40 square units.

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3 years ago