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Damm [24]
2 years ago
6

If y=2x-8, what is the value of x when y=0? A)-4 B)0 C)4 D)8

Mathematics
2 answers:
Savatey [412]2 years ago
6 0
If y=0 then,
2x-8=0
2x=8
X=8/2
X=4
Answer is c
Gennadij [26K]2 years ago
6 0

Answer:

x=4

Step-by-step explanation:

y = 2x - 8

Let y =0

0 = 2x-8

Add 8 to each side

8 = 2x-8+8

8 = 2x

Divide each side by 2

8/2 = 2x/2

4 =x

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Need Assistance With This<br>*Please Show Work*​
artcher [175]

Answer:

a =7.5

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2+ b^2 = c^2  where a and b are the legs and c is the hypotenuse

a^2 + 10 ^2 = 12.5^2

a^2 + 100  =156.25

Subtract 100 from each side

a^2 = 56.25

Take the square root of each side

sqrt(a^2) = sqrt( 56.25)

a =7.5

3 0
3 years ago
Please help!!!! <br><br> If f(1) = 2 and f(n+1) = f(n)^2 – 3 then find the value of f(3).
Black_prince [1.1K]

Answer:

The value of f(3) is -2.

Step-by-step explanation:

This is a recursive function. So

f(1) = 2

Now, we find f(2) in function of f(1). So

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f(2+1) = f(2)^2 - 3

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4 0
3 years ago
From first principle find the derivative of logx​
Archy [21]

Hello!

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Recall that:

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\frac{dy}{dx}log_{a}u = \frac{1}{ulna} * u'

Substitute in the values in the expression:

logx = \frac{1}{xln10} * 1 = \frac{1}{xln10}

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Answer:

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3 years ago
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blsea [12.9K]
To find the percent. A trick I learned in middle school was Dr. P

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Using that trick...

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