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3 years ago

What is 30,000 expressed in scientific notation? A) 3 x 10⁴

Mathematics

1 answer:

Misha Larkins [42]3 years ago

4 0

Answer:

Step-by-step explanation:

Just cause it makes sense

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Which statement must be true?

Alika [10]

<span>A. A statement cannot become a theorem until it is proven</span>

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3 years ago

What is the approximate area of the regular pentagon?

Anastasy [175]

Area of the pentagon: 342 cm2

Step-by-step explanation:

The figure of the pentagon is missing: find it in attachment.

The area of the pentagon can be seen as the area of 5 equal triangles, each of them having a base equal to the length of the side of the pentagon,

L = 14.1 cm

and the height of each triangle can be found by using Pythagorean's theorem:

$h=\sqrt{12^2-(\frac{L}{2})^2}=\sqrt{12^2-(\frac{14.1}{2})^2}=9.7 cm$

The area of each of the 5 triangles is

$A'=\frac{1}{2}Lh$

Therefore, the area of the pentagon is 5 times this area:

$A=5A'=\frac{5}{2}Lh=\frac{5}{2}(14.1)(9.7)=342 cm^2$

Learn more about area of regular figures:

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7 0

3 years ago

Read 2 more answers

how is the sentence "10 more than p is –3" written as an equation? – 3 = 10 p 10 = –3 p 10 = 3 p = 10 – 3

yarga [219]

This is saying that -3 is the result of a number "p" plus 10...therefore the equation is p+10=-3

8 0

3 years ago

Sonji correctly added 2p+1/p-8 and 3p-3/4p and got 8p^2+4p+3p-27p+24/(p-8)(4p). What is the simplified sum?

RUDIKE [14]

Answer:

The simplified sum is $\frac{11p^{2}-23p+24}{(p-8)4p}$

Step-by-step explanation:

we have

$\frac{2p+1}{p-8}+\frac{3p-3}{4p}=\frac{4p(2p+1)+(p-8)(3p-3)}{(p-8)4p}\\ \\=\frac{8p^{2}+4p+3p^{2}-3p-24p+24}{(p-8)4p}\\ \\ =\frac{11p^{2}-23p+24}{(p-8)4p}$

4 0

3 years ago

Read 2 more answers

Khloe invests money in an account paying a simple interest of 7% per year. If she invests $140 and no money will be added or rem

lutik1710 [3]

Answer:

$149.80

Step-by-step explanation:

<u>It is going to be:</u>

$140 + 7% of $140 =
$140 + $140*0.07 =
$140*1.07 =
$149.80

7 0

3 years ago