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yuradex [85]
3 years ago
8

9 through 13 i need help ASAP

Mathematics
1 answer:
Zarrin [17]3 years ago
8 0
I hope this helps you

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What is the value for x,the length of side bc?7 to
kifflom [539]

Answer:

x = 17.5

Step-by-step explanation:

\triangle ABC \sim \triangle DEF... (given)

\therefore \frac{AB}{DE} = \frac{BC}{EF}

\therefore \frac{10}{4} = \frac{x}{7}

\therefore 2.5 = \frac{x}{7}

\therefore 2.5\times 7= x

\therefore 17.5= x

\therefore x = 17.5

5 0
3 years ago
If f(x)=5x what is f square -1 (x)?
Gnom [1K]

Answer:

\frac{x}{5}

Step-by-step explanation:

f {}^{ - 1} (x)

means inverse.

Find the inverse of the function.

f(x) = 5x

Replace y with and vice versa.

x =  {5y}

Solve for y

\frac{x}{5}  = y

The inverse function is

\frac{x}{5}

6 0
3 years ago
Last winter, Tom earned $47.50 shoveling snow and $122 giving ice-skating lessons. During the summer, he earned twice as much by
siniylev [52]
You would have to add 47.50 + 122 to get 169.5 dollars. to get the amount of money he made in the summer, you would have to multiply 169.5 by 2 which would equal 339 dollars. so he made 339 dollars over the summer :)
5 0
3 years ago
V =u +at u = 2 a=-5 t=0.5
charle [14.2K]

Answer:

V = -0.5

Step-by-step explanation:

V is equal to:

2 + (-5 * 0.5)

2 + -2.5

-0.5

3 0
3 years ago
A baby is born having a mass of 3,000 grams and gains 200 grams in the following week. How much does the baby weigh one week aft
nignag [31]

Answer:

7 pounds 0.8767 ounces

8 0
4 years ago
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