3 years ago

Help pls and thank uu

Mathematics

1 answer:

Sergio039 [100]3 years ago

5 0

Answer:

f(- 4) = - 4

Step-by-step explanation:

f(- 4) with x = - 4 gives f(- 4) = - 4

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In a certain school club, 40% of the members are boys. If there are 45 members in the club, how many of them are boys?

Anastasy [175]

Answer:

18 of them are boys

Step-by-step explanation:

40% = 40/100 = 0.40

0.40 × 45 = 18

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4 years ago

If 5 workers can build 5 cars in 5 days how many days would it take for 7 workers to build 7 cars

ale4655 [162]

Answer:

7 days

Step-by-step explanation:

It would also take 7 days

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3 years ago

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sergey [27]

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3 years ago

Evaluate 5! + 2!.<br> Idk what is it

Sedbober [7]

Answer:

122

Step-by-step explanation:

If a number has an explanation point on the side of it, you should multiply all numbers that are equal to are less than that number.

$5!=5*4*3*2*1=120\\2!=2*1=2\\120+2=122$

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3 years ago

Larry is making custom signs to sell at his shop. The cost of making each sign is $50 plus $4.50 per sign, he will sell them for

Valentin [98]

The best way to answer this would be making a graph

For 1 sign it costs 54.50 and he makes 15

For 2 signs it costs 59 and he makes 30

For 3 signs it costs 63.50 and he makes 45

For 4 signs it costs 68 and he makes 60

For 5 signs it costs 72.50 and he makes 75

This means that after 5 signs Larry will be making profit

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3 years ago