Anyone who knows this please help me out

Mathematics

1 answer:

leva [86]4 years ago

5 0

1 unit left and reflection across x axis

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Evaluate the expression: 15f-60 if f=5

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15f-60=15×5-60=75-60=15

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3 years ago

Which decimal is greater: 0.347 or 0.437?

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0.437

Step-by-step explanation:

Decimals are read the same as whole numbers, starting with the first digit, which is the largest, to the right. So, to find the larger decimal you need to look at the first digit. If this digit is the same then continue to the right until there is a difference in the number. In this case, the first digit is different. Therefore, whichever has the larger first digit must be the greater one. Since 4 > 3, 0.437 must be greater than 0.347.

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2 years ago

I need help knowing how to show the work and how to get the answer and the answer it self

Morgarella [4.7K]

Find the separate areas.

We have a triangle with base 5 cm and height 5 cm, calculate the area:

$\sf A=\dfrac{1}{2}bh$

Plug in what we know:

$\sf A=\dfrac{1}{2}(5)(5)$

Multiply:

$\sf A=12.5~cm^2$

Now for the two quarter circles, we know that if we put these two together we will end up with a semi-circle with radius 5 cm. The formula for the area of a circle is:

$\sf A=\pi r^2$

A semi-circle is half of a whole circle, so the formula for the area of it must be:

$\sf A=\dfrac{1}{2}\pi r^2$

Now plug in what we know(use 3.14 to approximate for pi):

$\sf A\approx\dfrac{1}{2}(3.14)(5)^2$

Simplify the exponent:

$\sf A\approx\dfrac{1}{2}(3.14)(25)$

Multiply:

$\sf A\approx 39.25~cm^2$

Now add this to the area of the triangle to find the approximate area of the entire figure(round to the nearest tenth):

$\sf 39.25+12.5=\boxed{\sf 51.8~cm^2}$