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3 years ago

Complete the sentence with the correct item:

1 answer:

7 0

A COEFFICIENT is the numerical factor of a multiplication expression like 3x.

Parts of a multiplication expression.

3x + 6

3 is the coefficient
x is the variable
6 is the constant

3x and 6 are called terms.

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Marc has 3 fewer than 4 times the amount of ringtones than Melanie has. Write

Marrrta [24]

Answer:

4r-3

Step-by-step explanation:

3 fewer means subtracting 3 and 4 represents the r

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2 years ago

Find an equation for the line which is parallel to y= 1/4x + 5/3 and passes through the point (5,6)

amm1812

the answer is:

y=1/4x+19/4

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3 years ago

Help with 21 would be much appreciated.

umka2103 [35]

Answer:

$\large\boxed{x=2\sqrt{21}\ and\ y=4\sqrt3}$

Step-by-step explanation:

Look at the picture.

ΔADC and ΔCDB are similar. Therefore the sides are in proportion:

$\dfrac{AD}{CD}=\dfrac{CD}{DB}$

We have

$AD=14-8=6\\CD=y\\DB=8$

Substitute:

$\dfrac{6}{y}=\dfrac{y}{8}$ <em>cross multiply</em>

$y^2=(6)(8)$

$y^2=48\to y=\sqrt{48}\\\\y=\sqrt{16\cdot3}\\\\y=\sqrt{16}\ cdot\sqrt3\\\\\boxed{y=4\sqrt3}$

For x use the Pythagorean theorem:

$x^2=6^2+(4\sqrt3)^2\\\\x^2=36+48\\\\x^2=84\to x=\sqrt{84}\\\\x=\sqrt{4\cdot21}\\\\x=\sqrt4\cdot\sqrt{21}\\\\\boxed{x=2\sqrt{21}}$

3 0

3 years ago

What is the range of the data?

PilotLPTM [1.2K]

Answer:

is the difference between highest and lowest values.

Step-by-step explanation:

6 0

2 years ago

Abdul is creating a cushion that is 1 foot by 2 feet by 3 feet. He wants to find the least amount of fabric he will need to cove

netineya [11]

Answer:

The least amount of fabric are 22 square feet

Step-by-step explanation:

we know that

The surface area of a rectangular prism is given by the formula

$SA=2B+PH$

where

B is the area of the base

P is the perimeter of the base

H is the height of the prism

Let

L ---> the length pf the prism

W ---> the width of the prism

H ---> is the height of the prism

Let

$L=2\ ft\\W=3\ ft\\H=1\ ft$

Find the area of the base

$B=LW=(2)(3)=6\ ft^2$

Find the perimeter of the base

$P=2(L+W)=2(2+3)=10\ ft$

Find the surface area

$SA=2(6)+10(1)=22\ ft^2$

therefore

The least amount of fabric are 22 square feet

7 0

3 years ago

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