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2 years ago

Taylor completed the problem below. describe and correct the error in the problem. 2^(-4) = -2-2-2*-2=16

1 answer:

3 0

I am looking at ur first answer choice.....but something is off..
2^-4 = 1/(2^4) = 1/(2*2*2*2) = 1/16...this is correct

but ur answer choice says 2^-4 = 1/(2^-4)...and its supposed to equal 1/(2^4).
But I still think ur answer choice is A

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Given f(x)=x2+14x+40 . Enter the quadratic function in vertex form in the box.

sammy [17]

Please indicate exponentiation using " ^ " Thanks.

f(x)=x2+14x+40 => f(x)=x^2+14x+40

Next, complete the square:

f(x)=x^2+14x+ 49 - 49 +40 = (x+7)^2 - 9

Write this in the form y = (x+7)^2 - 9 or y + 9 = (x+7)^2
Comparing this result to y = a(x-h)^2 + k, we see that h = -7 and k=-9

In vertex form, the equation is y + 9 = (x+7)^2 and the vertex is at (-7, -9).

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2 years ago

15 POINTS!!!

Alex Ar [27]

Answer:

Step-by-step explanation:

y=mx+b

y-intercept= 1

b=1

point (5,4)

x=5

y=4

y=mx+b

4=m(5)+1

5m=3

m=3/5

rate of change = 3/5

5 0

2 years ago

Read 2 more answers

72 = –6(y + 37) plz help

AlladinOne [14]

Answer:

-49

Step-by-step explanation:

you can first divide both sides by -6

-12 = y+37

so y = -12-37 = -49

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2 years ago

pam deposited $6,900 in a savings account with simple interest. Four months later she had earned $23 in interest. What was the i

3241004551 [841]

Answer:

Step-by-step explanation:

We use the simple interest equation of A=P(1+rt).

A-the total amount with interest earned

P-the initial amount or principal

r-rate

t-time in years

We substitute the values P=6900, A=6923, and t=0.33 since 4 months divided by 12 months is 0.333 years. We then solve for r.

$6923=6900(1+r(0.33))\\6923=6900(1+0.33r)\\\frac{6923}{6900} =\frac{6900(1+0.33r)}{6900} \\1.0033=1+0.33r\\1.0033-1=1-1+0.33r\\0.0033=0.33r$

Our final step is to divide both sides by 0.33.

$\frac{0.0033}{0.33} =\frac{0.33r}{0.33} \\0.01=r$

This is the decimal of the rate. We convert to a percentage by multiplying by 100. 0.01(100)=1%.

5 0

2 years ago

HELP ASAP!! Which equation represents a line which is parallel to the line y = -23 - 1?

Brrunno [24]

Answer: A and D

Explanation -

Parallel lines have the same slope

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1 year ago

Taylor completed the problem below. describe and correct the error in the problem. 2^(-4) = -2*-2*-2*-2=16

Taylor completed the problem below. describe and correct the error in the problem. 2^(-4) = -2-2-2*-2=16