I need help with this 2 please

Mathematics

1 answer:

xeze [42]2 years ago

7 0

Answer:

Step-by-step explanation:

The formula for C is

C=2πr (using 3.14 as pi)

so C=2(3.14)(45)

so C=90(3.14)

so C≈282.6 or D

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3. A big league pitching coach tries to limit his pitchers to 110 pitches per game. If the pitcher has

krek1111 [17]

110 minus 52 is 58 so the answer would be 58 more pitches

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2 years ago

The sum of three consecutive integers is - 126. What are the integers?

Leno4ka [110]

Let the three consecutive integers be x , x+1 ,x+2
Given, sum of three consecutive integers = -126
x +x+1+ x+2 = -126
3x +3 = -126
3x = -126 -3
3x = -129
x = -129/3
x = - 43
x +1 = -42
x +2 = -41

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2 years ago

Please help me with this!

notsponge [240]

4 babies and 7 adults

B head=4x1=4 Aheads (3x7)=21 21+4=25 heads

B wings 4x2=8 A wings(4x7)=28 28+8=36

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2 years ago

Read 2 more answers

Given the relation y = 7x2 + 3, if the input is 4, what is the output? (4 points)

aivan3 [116]

I'm assuming that you meant:
y = 7x² + 3

Remember! Inputs are always x values (unless stated otherwise). Meaning the problem says:
x = 4

y = 7(4)² + 3

The square only applies to the 4. The 7 is not going to be squared! (To be exact it only applies to whatever the value of x is.

4² = 4·4 = 16

Remember:
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Follow PEMDAS from left to right (or in the case above from top to bottom).

7·16 + 3 = ?

16·7 = 10·7 + 6·7 = 70 + 42 = 112
(All I did to multiply was break it up into parts. If it confuses you don't worry about it, and just multiply it out like normal or use a calculator if you are allowed to)

112 + 3 = ?

Our output is:
115!

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2 years ago

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Estimate the total cost of 31 televisions at £196.50 each and 19 DVD players at £50.99 each

Gwar [14]

Answer:

Solution,

Cost of one television=£196.50

cost of 31 televisions:

 $= 196.50 \times 31 \\ = 6091.5$ 