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s344n2d4d5 [400]
3 years ago
8

I need help with this part, someone help me out :)

Mathematics
1 answer:
Alexandra [31]3 years ago
4 0

Answer:

A & B

Step-by-step explanation:

A) V = pi×r²×h

= 3.142 × 8² × 5 = 1005.44 cm³

B) V = ⅓ × 18×16 × 12 = 1152 cm³

C) V = ½×5×3 × 7 = 52.5 cm³

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Seven increased by the<br> product of two numbers
Kobotan [32]

Answer: x ≥ 5

Step-by-step explanation:

7 is increased by the product of a number and 3:  7 + 3x

Is at least 22:  ≥ 22

 

Your equation is: 7 + 3x ≥ 22

subtract 7 from both sides

3x ≥ 15

divide both sides by 3

x ≥ 5

8 0
3 years ago
△QRS is rotated about point P to △Q′R′S′ . Which statements are true about the pre-image and image?
yuradex [85]

Note that rotation will not affect the shape and size of an object.

Rotation with respect to a point preserves the corresponding sides and the corresponding angles of the original image.

Hence, the statements

The corresponding angle measurements in each triangle between the pre-image and the image are preserved and

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3 0
2 years ago
Lakeisha has 3 5/8 yards of fabric. She wants to make a dress that requires 2 1/2 yards of fabric. How much fabric will she have
mezya [45]

1/2 = 4/8

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4 0
3 years ago
Read 2 more answers
Six times a number decreased by eight is less than five times the number
Svetlanka [38]

6n-8<5n  decreased means subtract

n-8<0

n<8

8 0
2 years ago
The length of a rectangle is twice its width. if the perimeter is 72 meters, find the length and width of the rectangle
madam [21]
Length(l)= 2w
width(w)= w

Perimeter(P)= 2w+2l= 72 (simplify expression: divide each side by 2 )
P= w+l= 36 (plug in "2w" for "l")
P= w+(2w)= 36
P= 3w= 36 (divide each side by 3 to find the width)
w= 12 units

find length:
l=2w
l= 2(12)
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Answer:
The length of this rectangle is 24 units and the width is 12 units.
6 0
3 years ago
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