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3 years ago

Help please explain how please please, please

Mathematics

1 answer:

olga nikolaevna [1]3 years ago

7 0

Split the problem like this.
you were given that each square is 1cm.

so for the rectangle on the left it goes as followed
a= lxw
a= 3 x 5
a= 15

and now do the rectangle on the right
a= lxw
a= 4x2
a= 8

now just add the two together
a= 8+15
a=23cm

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Can someone help me answer number 70 and 71 in the image because I am very lost

8090 [49]

70). Answer Letter Choice, (C), 18 pi square units.

Area = pi r^2

D = 12

R = 6

Larger Circle: 36 pi

Find smaller circles, Subtract:

Diameter of larger circle is 12

Radius 6, also diameter of small circles (2)

pi r^2

D = 6

R = 3

pi = 9

2 circles

2 * 9 pi = Letter Choice, (C), 18 pi square inches

71). Answer Letter Choice, (B), 30.79 cm^2

72). Answer: 144

Hope that helps!!!! : )

8 0

3 years ago

Barney wanted to know how much ice cream he got in one scoop. The radius of a scoop is 2 inches. Find the volume. (Use 3.14 for

valentina_108 [34]

V = 4/3 x pi x r³

V = 4/3 x 3,14 x 2³ = 33,50 in³

3 0

2 years ago

The question is in the picture.

Mariulka [41]

Answer:

Team 1

Step-by-step explanation:

I think it is team 1 because their whiskers go through the whole graph and team 2 only goes from 68 to 76

4 0

3 years ago

Read 2 more answers

The measurements of two sides of a triangular playground are 24 feet and 30 feet. Which length could be the measurement of the t

Debora [2.8K]

Answer:c

Step-by-step explanation:

7 0

2 years ago

Does anyone know the answer?

motikmotik

Answer:

We conclude that the area of the right triangle is:

$A\:=p^2-2p-3$

Hence, option A is correct.

Step-by-step explanation:

From the given right-angled triangle,

Base = p+1

Perpendicular = 2p-6

Using the formula to determine the area of the right-angled triangle

Area of the right triangle A = 1/2 × Base × Perpendicular

$=\frac{1}{2}\left(p+1\right)\left(2p-6\right)$

Factor 2p-6: 2(p-3)

$=\frac{\left(p+1\right)\times \:2\left(p-3\right)}{2}$

Divide the number: 2/2 = 1

$=\left(p+1\right)\left(p-3\right)$

$\mathrm{Apply\:FOIL\:method}:\quad \left(a+b\right)\left(c+d\right)=ac+ad+bc+bd$

$=pp+p\left(-3\right)+1\cdot \:p+1\cdot \left(-3\right)$

$=pp-3p+1\cdot \:p-1\cdot \:3$

$=p^2-2p-3$

Therefore, we conclude that the area of the right triangle is:

$A\:=p^2-2p-3$

Hence, option A is correct.

3 0

3 years ago