3 years ago

Please please help meeee

Mathematics

1 answer:

Daniel [21]3 years ago

4 0

Answer:

1.5 km

Step-by-step explanation:

Length of pool = 25m

no.of lengths. = 60

Total length of he swim s = 25m* 60

= 1500m

You know , 1000m = 1km ,

so,

He swims 1500m/1000m

= 1.5 km

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otez555 [7]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

F(3)= 5x^2 - 4x + 9<br> evaluate this quadratic function

Neporo4naja [7]

Answer:

$f(3) = 38$

Step-by-step explanation:

Given the quadratic function

$f\left(x\right)=\:5x^2\:-\:4x\:+\:9$

Evaluating the quadratic function

$f\left(x\right)=\:5x^2\:-\:4x\:+\:9$

substitute x = 3

$f\left(3\right)=\:5\left(3\right)^2\:-\:4\left(4\right)\:+\:9$

$f(3) = 45-16+9$

$f(3) = 38$

Therefore,

$f(3) = 38$

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2 years ago

One leg of a right triangle is 12, and the hypotenuse is 20.

Eduardwww [97]

Answer:

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3 years ago

What percent of 40 is 70

nydimaria [60]

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3 years ago

Two computers working together can finish a search in 30 seconds. One of these computers can finish in 50 seconds. How long woul

vivado [14]

It would take the second computer 75 seconds because:

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3 years ago