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2 years ago

20 POINTS ILL GIVE BRAINLY TO THE FISRT ANSWER:

Mathematics

1 answer:

Mrac [35]2 years ago

6 0

Answer:

(f ° g)(x) = 20x + 7

Step-by-step explanation:

(f ° g)(x) = f(g(x)) = 5(4x - 1) + 12 = 20x - 5 + 12 = 20x + 7

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What is the prime factorization of 891

Advocard [28]

891

prime factors number to factorize

3 297

3 99

3 33

3 11

11 1

Therefore, the prime factorization of 891 is 1×3×3×3×3×11= 1×3^4×11, or 1*81*11

6 0

3 years ago

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A student's grade depends on her score on four equally-weighted exams. Her average on the first three exams is 92. What must she

Sergeeva-Olga [200]

3x92 = 276 (first 3 exams)
average of at least 90 (90 x 4 = 360)

360 - 276 = 84

Answer
<span>she needs to score at least 84 on the fourth exam </span><span>in order to guarantee a final average of at least 90</span>

4 0

3 years ago

Simplify equations HELP NOW!!

Anna [14]

Answer:

$\frac{1}{5} (2x+10)=4$ $x=5$

$\frac{1}{3} (3x+9)=9$ $x=6$

Step-by-step explanation:

$\frac{1}{5} (2x+10)=4$

Multiply both sides of the equation by 5.

5 · $\frac{1}{5}$ · $(2x+10)=$ 5 · 4

Simplify both sides of the equation.

$2x+10=20$

Subtract 10 from both sides of the equation.

$2x=10$

Divide each term by 2 and simplify.

$x=5$

--------------------------------------------------------------------

$\frac{1}{3} (3x+9)=9$

Substitute x for 6

$\frac{1}{3} (3(6)+9)=9$

Multiply 3 · 6

$\frac{1}{3} ((18)+9)=9$

Add 18 + 9

$\frac{1}{3} (27)=9$

Divide $\frac{1}{3}$ ÷ 27

9 = 9

6 0

3 years ago

Please help me with the question

Alecsey [184]

1.4
1 = 100
1.4 = 140
Solution: 140%

7 0

2 years ago

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Can you please answer 8.6 * 7, 16 * 1.4, 12 * 14, 7.3 * 20. altogether 15 points

fenix001 [56]

8.6*7=60.2, 16*1.4=22.4, 12*14=168, 7.3*20=146

7 0

3 years ago

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