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kirill [66]
3 years ago
14

Graph this function: f(x) = x2-4x - 5 Step 1: Identify a and b.

Mathematics
1 answer:
Lina20 [59]3 years ago
4 0

Answer: a= 1 b= -4 x = 2 f(2)= -9 the x intercepts are 5,0 and -1, 0 f(o) = -5

Step-by-step explanation:

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Amanda just took out a loan for $950 at a 7.2% APR, compounded monthly, to
vaieri [72.5K]

Answer:

C. 16 months faster

Step-by-step explanation:

You can solve this using a Financial calculator( TI BA II plus in this case)

First, find number of months if recurring monthly payment is $38.50;

Amount borrowed ; PV = -950

Monthly rate ; I/Y  = 7.2%/12 = 0.6%

Monthly payment; PMT = 38.50

Future value ; FV = 0

Total duration;  press CPT, N = 26.785  OR 27 months

Next, find number of months if recurring monthly payment is $93;

Amount borrowed ; PV = -950

Monthly rate ; I/Y  = 7.2%/12 = 0.6%

Monthly payment; PMT = 93

Future value ; FV = 0

Total duration;  press CPT, N = 10.573 OR 11 months

Difference = 27 -11 = 16

Therefore, she would be able to pay off the loan 16 months faster.

8 0
3 years ago
Tessa is taking her family out to dinner and the bill is $250. She has a coupon for 15% off. After the discount is applied, she
IgorLugansk [536]

Answer:

$255

Step-by-step explanation:

250*.85=212.5

212.5*1.2=255

8 0
3 years ago
Ava estimates that 475 songs will fit on her iPad. The actual amount of songs that fit is 350. Find her percent of error.
alukav5142 [94]

Given:

Ava estimates that 475 songs will fit on her iPad.

The actual amount of songs that fit is 350.

To find:

The percent of error.

Solution:

We know that,

\text{Percent error}=\dfrac{\text{Estimated values - Actual value}}{\text{Actual value}}\times 100

Putting the given values, we get

\text{Percent error}=\dfrac{475-350}{350}\times 100

\text{Percent error}=\dfrac{125}{350}\times 100

\text{Percent error}=\dfrac{250}{7}

\text{Percent error}\approx 35.71\%

Therefore, the percent of error is 35.71%.

3 0
3 years ago
What is the answer to <br> 2x=24
Digiron [165]

Answer:

12

Step-by-step explanation:

you divide 24 by 2 because it is multiplication, and the opposite is division.

5 0
3 years ago
Read 2 more answers
the product of 8 and a number , increased by 52, is equivalent to the product of 12 and the sum of the number and 2 . find the n
Step2247 [10]

8n+52=12(n+2)

distribute

8n+52 = 12n+24

subtract 8n from each side

52=4n +24

subtract 24 from each side

28 = 4n

divide by 4 on each side

7=n


8 0
3 years ago
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