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3 years ago

What is 37,493 decreased by 8,500

Mathematics

2 answers:

melisa1 [442]3 years ago

6 0

Answer:

28,993

Step-by-step explanation:

Subtract 8,500 from 37,493

The answer is 28,993

Hope this helped :)

Bezzdna [24]3 years ago

3 0

Answer:

28,993

Step-by-step explanation:

Have a wonderful day, lovelies <3

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3a =2b + -6 (solve for a)

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Answer:

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Step-by-step explanation:

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Answer:

<h3><u>Let's</u><u> </u><u>understand the concept</u><u>:</u><u>-</u></h3>

Here angle B is 90°

So $\triangle ABC$ and $\triangle ABD$ Are right angled triangle

So we use Pythagoras thereon for solution

<h3><u>Required Answer</u><u>:</u><u>-</u></h3>

First in triangle ABC

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Hypontenuse =h =10cm

We need to find base=b

According to Pythagoras thereon

${\boxed{\sf b^2=h^2-p^2}}$

Substitutethe values

$\longrightarrow$ $\sf b^2=10^2-p^2$

$\longrightarrow$ $\sf b={\sqrt {10^2-8^2}}$

$\longrightarrow$ $\sf b={\sqrt{100-64}}$

$\longrightarrow$ $\bf b={\sqrt {36}}$

$\longrightarrow$ $\sf b=6$

$\therefore$ $\overline{BC}=6cm$

BD=BC+CD

$\longrightarrow$ $BD=9+6$

$\longrightarrow$ $BD=15cm$

Now in $\triangle ABD$

Perpendicular=p=8cm

Base =b=15cm

We need to find Hypontenuse =AD(x)

According to Pythagoras thereon

${\boxed {\sf h^2=p^2+b^2}}$

Substitute the values

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$\longrightarrow$ $\sf h={\sqrt {8^2+15^2}}$

$\longrightarrow$ $\sf h={\sqrt {64+225}}$

$\longrightarrow$ $\sf h={\sqrt {289}}$

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3 years ago

What is the surface area of a sphere with a diameter of 12 centimeters ?

nasty-shy [4]

Answer:

$A=452.39\ cm^2$

Step-by-step explanation:

The formula to calculate the surface area of a sphere is the following:

$A=4\pi r^2$

Where A is the area of the sphere and r is the radius of the sphere.

In this case we know that the diameter d of the sphere is:

$d = 12\ cm$

The diameter is:

$d = 2r$ .

Thus

$r = \frac{d}{2}\\\\r = \frac{12}{2}\\\\r=6\ cm$

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