Ask question

Ask question

All categories

3 years ago

7

A round cake has a diameter of 30 cm. Angela places the cake on a circular cake board with a diameter 5 cm longer than that of t

he cake. What is the circumference of the cake board? Give your answer in terms of pi π

1 answer:

Stels [109]3 years ago

5 0

Answer:

C = 35 pi

Step-by-step explanation:

The new diameter is 5 + 30 = 35

The circumference = pi * d

The circumference = 35*pi

You might be interested in

When combining do u add or multiplty

Butoxors [25]

I think adding because ur adding the two things together

6 0

3 years ago

Read 2 more answers

What is the area this trapezoid?

Svetlanka [38]

Step-by-step explanation:

Area = 0.5(19+25)(20) = 440cm².

8 0

3 years ago

Read 2 more answers

Help help help ASAP

STatiana [176]

Answer:

x=-8

Step-by-step explanation:

Subtract 2 from both sides

Simplify

Multiply all terms by the same value to eliminate fraction denominators

Cancel multiplied terms that are in the denominator

Subtract 2x from both sides

Simplify

8 0

2 years ago

Read 2 more answers

Tia cut a 4 meter 8 centimeter wire into 10 equal pieces. Martha cut 540 centimeter wire into 9 equal pieces. how much longer is

Minchanka [31]

Answer:

Mia piece is 19.2cm longer than Tia's piece.

5 0

3 years ago

Read 2 more answers

Solve x2 + 2x + 9 = 0

Keith_Richards [23]

$x^2+2x+9=0 \\ \\
a=1 \\ b=2 \\ c=9 \\ b^2-4ac=2^2-4 \times 1 \times 9=4-36=-32 \\ \\
x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}=\frac{-2 \pm \sqrt{-32}}{2 \times 1}=\frac{-2 \pm \sqrt{-16 \times 2}}{2}=\frac{-2 \pm 4i\sqrt{2}}{2}=-1 \pm 2i\sqrt{2}$

The answer is D.

8 0

3 years ago

Read 2 more answers