3 years ago

Which of the following statements are true for using proporitions to solve for missing measures select three options

Mathematics

1 answer:

wel3 years ago

6 0

Answer:

A,B E

Step-by-step explanation:

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What is the solution for y over 5 minus 2 equals -7

MA_775_DIABLO [31]

Answer:

The answer is -25

Step-by-step explanation:

You add -2 to get rid of it making it -5 then you multiply 5 by itself and you do that to both sides and get Y= -25

(sorry if it doesn't make sense)

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4 years ago

Find and simplify the expression if f(x)=x^2-1.<br> f(x-3)

kenny6666 [7]

Answer:

Step-by-step explanation:

f(x)=x²-1

f(x-3)=(x-3)²-1

=x²-6x+9-1

=x²-6x+8

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3 years ago

Work out the perimiter of a semi circle with radius of 3 <br> Give your answer in term of pi

sweet [91]

Answer:

15.425 cm is it without terms of pie

Step-by-step explanation:

you need to put it into terms of pie

5 0

4 years ago

Read 2 more answers

Plz help me ASAP thx.

kolbaska11 [484]

Use the Pythagorean theorem:

$a^2+(2\sqrt3)^2=(4\sqrt3)^2\\\\a^2+2^2(\sqrt3)^2=4^2(\sqrt3)^2\\\\a^2+4\cdot3=16\cdot3\\\\a^2+12=48\ \ \ \ |-12\\\\a^2=36\to a=\sqrt{36}\\\\\boxed{a=6\to C.}$

Used:

$(a\cdot b)^n=a^n\cdot b^n\\\\(\sqrt{a})^2=a$

3 0

3 years ago

How much of a circle does a 100-degree angle turn through?

pashok25 [27]

Answer:

D. 100/360

Step-by-step explanation:

6 0

4 years ago