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3 years ago

Brainist to who answers this!

Mathematics

2 answers:

kumpel [21]3 years ago

7 0

13t ^2+ 2t ^2+ 9 this is the answer to the problem

yanalaym [24]3 years ago

4 0

Answer:

13t² + 2t + 9

Step-by-step explanation:

(9t² - 3t + 5) - (-4t² + 5t + 4)

Solving like terms

-(-4t²) becomes + 4t²

(9t² + 4t²) + (-3t + 5t) + (5+4) =

13t² + 2t + 9

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-Chetan K

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3 years ago

$46 shoes 2.9 tax round to the nearest cent

Cerrena [4.2K]

$46 with 2.9% tax is:

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4 years ago

If the scale of a map is 2 centimeters=21 kilometers, then what is the actual distance of 14 millimeters?

Ad libitum [116K]

Answer:

14.7 km

Step-by-step explanation:

Given:

Scale of a map is 2 cm = 21 km.

We know that, 1 cm = 10 mm

Therefore, 2 cm = 2 $\times$ 10 = 20 mm

Therefore, the scale of the map is, 20 mm = 21 km

Now, let the actual distance be 'd' km for 14 mm.

Using proportion of the two quantities, we get:

$\frac{d}{14}=\frac{21}{20}$

Multiplying both sides by 14, we get:

$\frac{d}{14}\times 14=\frac{21}{20}\times 14\\d=\frac{21\times 14}{20}=\frac{147}{10}=14.7\ km$

Therefore, the actual distance of 14 mm is 14.7 km.

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3 years ago

Vince makes 75% of his free throw attempts. He wants to create a tool that will simulate his free throw shooting and allow him t

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3 years ago

when solving an equation rylee get to the last line of her work and is left with 4=4 what does this mean

7nadin3 [17]

Answer:

This means that the equation has infinitely many solutions.

Step-by-step explanation:

Say I have a problem like 1+x=1+x.

Subtracting 1 from both sides gives me x=x.

Any number can be x b/c any number equals itself.

You can prove this by checking: 4=4; 1=1; 1000=1000; -356=-356; $\sqrt{3} =\sqrt{3}$

Any number will equal itself, so the equation has infinitely many solutions.

6 0

3 years ago

Brainist to who answers this! ​

Brainist to who answers this!