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3 years ago

WILL GIVE BRAINLIEST!

Mathematics

1 answer:

siniylev [52]3 years ago

8 0

Answer:

48x² + 24x + 3

Step-by-step explanation:

Width = (4x + 1) in

Length = 3 *width = 3*(4x + 1) = 3*4x + 3*1

= (12x + 3) in

Area of rectangle = length * width

= (12x + 3) (4x + 1)

= 12x *4x + 12x *1 + 3*4x + 3*1

= 48x² + 12x + 12x + 3

= 48x² + 24x + 3

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A science museum has a spherical model of the earth with a diameter of 6.5 m. What is the volume of the model? Use 3.14 for and

natka813 [3]

radius = diameter/2

radius = 6.5/2 = $\frac{13}{4}$ m

volume $= \frac{4}{3}$ x $\pi$ x (radius)³

$= \frac{4}{3}$ x $\pi$ x $( \frac{13}{4})^3$

$= \frac{4}{3}$ x $\pi$ x $\frac{2197}{64}$

$= \frac{2197}{64}$

= 144 cubic meters

6 0

2 years ago

Lilly and Maggie decorated their windows with twinkle lights. Maggie used 51 more twinkle lights than Lilly. Fill in the box wit

nadya68 [22]

We know that
m-------------------- > the amount of twinkle lights Maggie used
l--------------------- > the amount of twinkle lights Lilly used
l=70
m=51+l
therefore
m=51+70=121
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6 0

3 years ago

35 inches in diameter what is the radius

Masja [62]

Radius = diameter/2

35/2 = 17.5

7 0

3 years ago

For which value of x is the equation 3(3 + x) = 15 + x true? A) 1 B) 2 C) 3 D) 4

natulia [17]

Answer:

Step-by-step explanation:

3(3 + x) = 15 + x

Open bracket

9 + 3x = 15 + x

Collecting like terms

3x - x = 15 - 9

2x = 6

Dividing by 2

x = 6/2

x = 3

3 0

3 years ago

Read 2 more answers

Help fast !!!! I need to get this done before I go to school ixl AA.1

Lorico [155]

Answer:

slope = - $\frac{7}{5}$

Step-by-step explanation:

Calculate the slope m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (- 5, 0) and (x₂, y₂ ) = (0, - 7 ) ← 2 points on the line

m = $\frac{-7-0}{0-(-5)}$ = $\frac{-7}{0+5}$ = $\frac{-7}{5}$ = - $\frac{7}{5}$

4 0

2 years ago