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8_murik_8 [283]
3 years ago
13

Substitute x with 2.

Mathematics
1 answer:
Marina CMI [18]3 years ago
7 0

Answer: -5


Step-by-step explanation:

13-4(2) / 2(2)^2-7(2)+5

5 / -1



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What is 3.0416666667 as a fraction
kirill [66]
Answer:
= 3041666667/1000000000

= 3041666667/1000000000

<span>= 3  41666667/1000000000 </span>
Work:
Write the decimal number as a fraction
(over 1)
3.041666667 = 3.041666667 / 1

Multiplying by 1 to eliminate 9 decimal places
we multiply top and bottom by 9 10's

Numerator (N)
N = 3.041666667 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 = 3041666667
Denominator (D)
D = 1 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 = 1000000000

N / D = 3041666667 / 1000000000

Simplifying our fraction

= 3041666667/1000000000

= 3041666667/1000000000

<span>= 3  41666667/1000000000</span>
4 0
3 years ago
F(x) = 4√(2x³-1)<br> F'(x) =....?
icang [17]
y= \sqrt[4]{(2x^3-1)} \\ y^4=2x^3-1 \\ 2x^3=y^4+1 \\ x^3= \frac{y^4+1}{2} \\ x= \sqrt[3]{\frac{y^4+1}{2}}

Therefore, F'(x) = \sqrt[3]{\frac{y^4+1}{2}}
7 0
4 years ago
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Arte-miy333 [17]

Answer:

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8 0
3 years ago
Read 2 more answers
Emma is playing miniature golf. Her ball is 2 feet of the right-wall. The hole is 4 feet to the left of the wall. The distance a
GalinKa [24]

Answer:

She should aim 6 feet down the wall

Explanation:

The diagram attached sketches the situtation.

Since the angle with which the ball hits the wall is the same with which it bounces, angle β is the same for the two shown triangles.

Then, since both are right triangles, then all the angles are congruent and the triangles are similar. Hence, you can equal the ratios of the sides, to make an equation:

x/4 = y/2 ⇒ x = 2y

You have other equation:

x+ y = 18

Substitute

2y + y = 18

3y = 18

y = 18/3

y = 6 ← this is the distance down the wall where the ball should hit

x = 2(6) = 12

Then, she should aim 6 feet down the wall.

4 0
3 years ago
Nao and Arban drive to work. Nao drives 95 miles in 2.5 hours. Arban drives 128 km in 1 hour 15 min. Work out the difference bet
statuscvo [17]

Answer:

Nao = 95/2.5 = 38 miles per hour

15 min x (1 hour / 60 min) = .25

Arban  =  128 km x (1 mile / 1.6 km) / 1.25 hour = 64 miles per hour

Step-by-step explanation:

4 0
3 years ago
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