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vladimir2022 [97]
3 years ago
14

Hawlp giving brainlesst

Mathematics
2 answers:
Inga [223]3 years ago
8 0

Answer:

-0.7

Step-by-step explanation:

Sedaia [141]3 years ago
4 0

Answer:

B. -\frac{7}{10} = -.7

Step-by-step explanation:

Replace all occurrences of  −  −  with a single  +. Two consecutive minus signs have the same mathematical meaning

-.75+\frac{2}{5}+.4-\frac{3}{4}

Find the common denominator.

\frac{-.75*20}{20} +\frac{2*4}{20} +\frac{.4*20}{20}-\frac{3*5}{20}

Simplify terms.

\frac{-15+8+8-15}{20}

Simplify the numerator.

\frac{-14}{20}

Reduce the expression by cancelling the common factors.

-\frac{7}{10}

<em>hope this helps, good luck :)</em>

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What is sin A=0.3784 rounded to the nearest whole degree
DENIUS [597]

Answer:

∠A = 22°

Step-by-step explanation:

Given:

\sin (A)=0.3784

We take inverse of sine to find angle A.

So, \angle A=sin^{-1}(0.3784)=22.23°

22.23° rounded to nearest whole degree is 22°.

∴ \angle A=22°.

6 0
3 years ago
Penelope is going to the carnival to ride the rides. It costs $20 to get into the carnival and ride tickets are $0.50 each. Writ
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Answer:

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Step-by-step explanation:

5 0
3 years ago
Solve x2 – 8x 41 = 0 for x. x = –4 ± 5i x = 4 ± 5i
Ede4ka [16]
X^2 - 8x + 41 = 0
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3 0
4 years ago
I'm sooo bad at math plzzz help me....
Grace [21]
Its basically saying 8×9a is equal to 9×-2a then you answer it the answer is 72=-18
8 0
3 years ago
Read 2 more answers
What is the value of f(-2) if f(x) = - 3x2 + 4x - 1
pashok25 [27]

Given the function below:

\large{f(x) =  - 3 {x}^{2}  + 4x - 1}

To find f(-2), we substitute x = -2 in the equation. Since f(-2) means the value of f(x) at x = -2.

\large{f( - 2) =  - 3 {( - 2)}^{2}  + 4( - 2) - 1}

Replace x-term to -2 and evaluate.

\large{f( - 2) =  - 3(4) - 8 - 1} \\  \large{f( - 2) =  - 12 -  8 - 1 \longrightarrow f( - 2) =  - 21}

Answer

  • f(-2) = -21

Let me know if you have any doubts!

4 0
3 years ago
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