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3 years ago

The quotient of 25 and the sum of 3 and a number that equals 28 is what?

1 answer:

7 0

3 and a number that = 28 Let the number be n

3 + n = 28

n = 28 - 3

n = 25

The quotient of 25 and the sum 3 and a number

Sum = 25 + 3 = 28

Quotient = 25 / 28

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Changle. Show all work. Round each length to the nearest tenth and each angle to the

Sedaia [141]

Answer:

Part 1) $BC=12.2\ units$

Part 2) $m\angle A=55^o$

Part 3) $m\angle C=35^o$

Step-by-step explanation:

Part 1) Find AC

we know that

In the right triangle ABC of the figure

Applying the Pythagorean Theorem

$AC^2=AB^2+BC^2$

substitute the given values

$AC^2=7^2+10^2$

$AC^2=149\\AC=12.2\ units$

Part 2) Find the measure of angle A

we know that

In the right triangle ABC

$tan(A)=\frac{BC}{AB}$ ----> by TOA (opposite side divided by the adjacent side)

substitute the values

$tan(A)=\frac{10}{7}$

using a calculator

$m\angle A=tan^{-1}(\frac{10}{7})=55^o$

Part 3) Find the measure of angle C

we know that

In the right triangle ABC

$m\angle A+m\angle C=90^o$ ----> by complementary angles

substitute the given value

$55^o+m\angle C=90^o$

$m\angle C=90^o-55^o=35^o$

8 0

3 years ago

X(x) + 12x + 21 = 0 factor

Yakvenalex [24]

It is not factorable. Factors of 21 are. 21 and 1
7 and 3. None of those add up to 12

3 0

3 years ago

27a+21 i need to solve thi problem help me

Anika [276]

That's an expression, so the only thing you can do is simplify it, but that already looks simplified.

8 0

3 years ago

Write x2 - 12x + 8 = 0 in vertex form.

antiseptic1488 [7]

(x-4)^2-19=y
you first add the three to the other side, then add 16 on both sides, make the left side x-4 squared, and lastly you subtract 19 from both sides.

3 0

2 years ago

Read 2 more answers

Determine the next three terms in the following sequence:<br><br> -1, 1/2, -1/4, 1/8,__,__,__,….

matrenka [14]

Answer:

Step-by-step explanation:

1 : 2 = 1/2 : 2 = 1/4 : 2 = 1/8 : 2 = 1/16 : 2 = 1/32 : 2= 1/64

4 0

2 years ago