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Artemon [7]
3 years ago
15

What are the zeros of the function f(x) =(x^2 - 3x - 10)(x + 4) !!Please help!!!

Mathematics
1 answer:
murzikaleks [220]3 years ago
7 0
F(x) = (x² - 3x - 10)(x + 4) becomes (x - 5)(x + 2)(x + 4) when completely factored. Now set each binomial equal to zero. 

x - 5 = 0
x = 5

x + 2 = 0
x = - 2

x + 4 = 0
x = - 4

Your zeros are at x = - 4, - 2, and 5. Or at (- 4, 0), (- 2, 0), and (5, 0). 
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ololo11 [35]
The answers for this question are 2 , 3 , and 5. these 3 make the most sense.
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3 years ago
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Solve for b.
AlekseyPX

Answer:

b=+-5\sqrt{C}

Step-by-step explanation:

C=b^2/25

25C=b^2

\sqrt{b^2}=+-\sqrt{25C}

b=+-5\sqrt{C}

8 0
3 years ago
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108 - 271 + 215-_____= -103
kupik [55]
108-271+215-_____=-103
Im going to combine the first thee numbers and replace the blank with a variable, lets use x. 
52 - x=-103
now I am going to subtract 52 on both sides to get the variable alone
-x=-155
Im going to multiply both sides to eliminate the negitive in the variable
x=155
If you want to check just plug 155 into the blank
108-271+215-155=-103
-163+215-155=-103
52-155=-103
-103=-103

so after checking work the blank is equal to 155.


5 0
3 years ago
Help please! any1 know this​
FrozenT [24]

The area of square: s · s = s²

The area of rectangle: (s + 6) · s = s(s + 6)

So:

s² + s(s + 6) = 56

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8 0
3 years ago
Two customers took out home equity loans. • Cathy took out a 10-year loan for $20,000 and paid 5.20% annual simple interest • St
ratelena [41]

Answer: B) $4,000

Step-by-step explanation:

The formula for determining simple interest is expressed as

I = PRT/100

Where

I represents interest paid on the loan.

P represents the principal or amount taken as loan

R represents interest rate

T represents the duration of the loan in years.

Considering Cathy's loan,

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R = 5.2%

T = 10 years

I = (20000 × 5.2 × 10)/100

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Considering Steven's loan,

P = $20,000

R = 4.8%

T = 15 years

I = (20000 × 4.8 × 15)/100

I = $14400

The difference between the amounts of interest Cathy and Steven paid for their loans is

14400 - 10400 = $4000

4 0
3 years ago
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