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STALIN [3.7K]
3 years ago
7

Please help please please help me please please

Mathematics
2 answers:
marusya05 [52]3 years ago
6 0

Answer:

the answer is 48 I think

Step-by-step explanation:

I did it by sub 90 and 42

boyakko [2]3 years ago
5 0

Answer:

8.88

Step-by-step explanation:

With reference angle 42°

hypotenuse (h) = 12

base (b) = x

Now

cos 42° = b / h

0.74 = x / 12

x = 0.74 * 12

x = 8.88

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Tom makes $216.80 in 4 days. how much does he make in 2 days
V125BC [204]

Answer:

$108.4

Step-by-step explanation:

Divide $216.8 by 4 to find the amount of money Tom makes in 1 day:

== $54.2 per day

We are looking for money Tom makes in TWO days, so multiply the value we just found by 2:

$54.2*2

==$108.4

5 0
2 years ago
Read 2 more answers
Ana deposits $1,500 in a savings account that earns 4% interest
Masja [62]

Answer:

She will have 1824.98 dollars in five years

Step-by-step explanation:

1500 X 1.04 ^ 5

7 0
3 years ago
What is the sum?<br> A<br> B<br> C<br> D
zalisa [80]

Answer:

\displaystyle{\dfrac{5x-12}{(x+3)(x-3)} }

Step-by-step explanation:

We are given the expression:

\displaystyle{\dfrac{3}{x^2-9} + \dfrac{5}{x+3}}

First, factor the denominator \displaystyle{x^2-9} to \displaystyle{(x+3)(x-3)} via difference of two squares:

\displaystyle{\dfrac{3}{(x+3)(x-3)} + \dfrac{5}{x+3}}

Next, multiply the expression 5/(x+3) by \displaystyle{x-3} both denominator and numerator:

\displaystyle{\dfrac{3}{(x+3)(x-3)} + \dfrac{5(x-3)}{(x+3)(x-3)}}

Add both together since they have same denominator now:

\displaystyle{\dfrac{3+5(x-3)}{(x+3)(x-3)} }

Simplify the numerator:

\displaystyle{\dfrac{3+5x-15}{(x+3)(x-3)} }\\\\\displaystyle{\dfrac{5x-12}{(x+3)(x-3)} }

Therefore, the sum is:

\displaystyle{\dfrac{5x-12}{(x+3)(x-3)} }

4 0
1 year ago
PLEASEEEEEE HELP!!! 30 points!!!
Neko [114]

Answer:

(a) first option and last option

When you combine the first 2 terms you get 4x + 3x. When you combine all the terms together you get 7x.

(b) second option and third option

This equation can also be written as 4 x 1 + 4 x 7y. When you distribute the 4 into the terms in the parentheses you get 4 + 28y

:)

5 0
2 years ago
Read 2 more answers
Plz. Can anyone explain and tell the answer of this question.I promise I will mark it as brainliest Question.
Leto [7]

Answer:

x = 15

y = 90

Step-by-step explanation:

Step 1: Find <em>x</em>

We use Definition of Supplementary Angles

9x + 3x = 180

12x = 180

x = 15

Step 2: Find <em>y</em>

All angles in a triangle add up to 180°

3(15) + 3(15) + y = 180

45 + 45 + y = 180

90 + y = 180

y = 90°

6 0
2 years ago
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