3 years ago

PLEASE HELP ME ON MATH ASAP

1 answer:

6 0

B, because 10 is a multiple of 5, so anything divided by 10 could be divided by 5 (sort of how any even number can be divided by 2)

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How many gallons of a 90% antifreeze solution must be mixed with 100 gallons of 30% antifreeze to get a mixture that is 80% anti

Grace [21]

The answer for this question would be 30%

7 0

3 years ago

In ΔDEF, the measure of ∠F=90°, the measure of ∠E=32°, and FD = 9.6 feet. Find the length of EF to the nearest tenth of a foot.

NeX [460]

Answer:

$EF=15.4\ ft$

Step-by-step explanation:

we know that

In the right triangle DEF

$tan(E)=\frac{FD}{EF}$ ----> by TOA (opposite side divided by adjacent side)

substitute the given values

$tan(32^o)=\frac{9.6}{EF}$

solve for EF

$EF=\frac{9.6}{tan(32^o)}=15.4\ ft$

6 0

3 years ago

Read 2 more answers

Please help i have no idea what are the excluded values to the equation y = 5 / (x^2 - 7x 10)?

Kryger [21]

Hello,

The excluded values are the roots of the denominator.

x²-7x+10=x²-2x-5x+10=x(x-2)-5(x-2)=(x-2)(x-5)

Roots of the denominator are x=2 and x=5

5 0

3 years ago

Solve for v. -9/8 = v - 1/2

Usimov [2.4K]

Answer:

$- \frac{5}{8}$

Step-by-step explanation:

$- \frac{9}{8} = v - \frac{1}{2} \\ \\ \frac{1}{2} - \frac{9}{8} = v \\ \\ \frac{4}{8} - \frac{9}{8} = v \\ \\ \frac{4 - 9}{8} = v \\ \\ v = - \frac{5}{8} \\$

3 0

3 years ago

Can someome help me plz and thx. The answer is 32 but I dont know how to get the answer.

GenaCL600 [577]

Answer:

Well here is how i wpould solve it:

- -7 . = 9

- + 7 = 9 + 7

- = 16

x * 2 = 16 * 2

x = 32

REMEMBER: alsways do one thing to one side of the equation, as well as the other!

Step-by-step explanation:

PLS MARK BRAINLIEST!

7 0

3 years ago