MATHEMATICS MIDDLE SCHOOL

Carla must ice a german chocolate cake. The diameter of the cake is 6 cm. Use the formula A = 3.14 x r2 to find the area of the cake.A) 7.07
B) 19.63
C) 20.56
D) 28.26

Answers

Answer 1
Answer: ok so icing only the top of the cake so the side get none

area=pir^2
d/2=r
6/2=r=3

A=3.14*3^2
aera=3.14*9
area=28.86

answer is D
Answer 2
Answer:

Answer:

Step-by-step explanation:

the correct answer is d

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Change each improper fraction into an equal mixed number.a. 15⁄4
b. 41⁄9
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Answers

A.) 3 3/4

B.) 4 5/9

C.) 8. 375 - I couldn't solve this one

D.) 12 3/11

E.) 5 7/20

F.) 29

Help me on question 14 please

Answers

What is question 14?

Find the area of a parallelogram with a height of 2x - 3 and a base of x + 4.

Answers

multiply the two as area is base times height.
(2x - 3)(x + 4) \n 2 {x}^(2) + 8x - 3x - 12 \n 2 {x}^(2) + 5x - 12

Which of the following is not an identity?O A. 2cos2x-1 = 1 - 2sin2x
O B. secx cscx(tanx + cotx) = sec2x + csc2x
O C. 2sin?x- sinx = 1
D. sin2x + tan2x + cos2x = secax

Answers

2sin^2 - x - Sinx =1 and sec x csc x (tanx+ cotx) = sec^2x + csc^2x is not an identity. Option B and C is correct.

Out of Four options are given, which of them is not an identity is to be determined.

What is identity?

An identity is the common case formula that helps to solve mathematics.

1)

2cos^2x-1 = 1 - 2 sin^2x\n \ncos2x =cos2x

It is also a perfect identity.

2)

secx cscx(tanx+ cotx) = sec^2x + csc^2x\n\n\nsec x cscx (sinx/cos x + cosx/sinx) = sec^2 + csc^2x\n\nsecx cscx (sin^x+cox^2x/cosxsinx) = sec^2x +csc^2x

     It is also not an identity.

3) 2sin^2-X- Sinx=1

It's not an identity cause it is form of equation and contain -x.

4)

sin^2x+ tan^2x + cos^2x = sec^2x\n sin^2x + cos^2x = sec^2x -tan^2x = 1

It is a perfect identity.

Thus, 2sin^2- x - Sinx =1 and sec x csc x (tanx+ cotx) = sec^2x + csc^2x is not an identity. Option B and C is correct.

Learn more about identity here:

brainly.com/question/6971003

#SPJ5

Answer:

C. 2 sin^2x-sinx=1

Step-by-step explanation:

a p e c

3x - 1 < 2x + 4

What is the solution to the following inequality?

Answers

Answer:

3x - 2x -1 < 4

3x -2x <4+1

x < 4+1

x < 5

there are 3 trays of eggs each tray holds 30 eggs.how manny people can be served if each person eats 2 eggs

Answers

30 x 3 = 90
90 divided by 2 = 45
45 People can be served
45 people can be served if each person gets 2 eggs
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