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34kurt
4 years ago
12

(12f^2-9f+15)-(-4f^2-3f+6) subtract.

Mathematics
1 answer:
german4 years ago
8 0
So what you do is distribute the invisible -1 in front of the second parenthasees set and add like terms
remember
x^2+3x^2=4x^2
-(3+4x-x^2)=-1(3x+4x-x^2)=-3-4x+x^2

so first distribute the negative 1
-1(-4f^2-3f+6)=4f^2+3f-6
add
12f^2-9f+15+4f+3f-6
group like terms
12f^2+4f^2-9f+3f+15-6
add
16f^2-6f+9

aswer is 16f^2-6f+9

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Solve for x.<br> X^2-6x+10=2
MAVERICK [17]

Answer:

x = 2, 4

Step-by-step explanation:

Step 1: Write out quadratic

x² - 6x + 10 = 2

Step 2: Subtract 2 on both sides

x² - 6x + 8 = 0

Step 3: Factor

(x - 4)(x - 2) = 0

Step 4: Find roots

x - 4 = 0

x = 4

x - 2 = 0

x = 2

5 0
3 years ago
100 POINTS<br> PLEASE EXPLAIN AND ADD STEPS. THANK YOU IN ADVANCE
e-lub [12.9K]

Given one to one f(6)=3, f'(6)=5, find tangent line to y=f⁻¹(x) at (3,6)

OK, we know

f⁻¹(3)=6

The inverse function is the reflection in y=x.  So slopes, i.e. the derivative will be the reciprocal.  We know the derivative of f at 6 is 5, so the derivative of f⁻¹  at y=6 is 1/5, which corresponds to x=3.

f⁻¹ ' (3) = 1/5

That slope through (3,6) is the tangent line we seek:

y - 6 = (1/5) (x-3)

That's the tangent line.

y = x/5 + 27/5

8 0
4 years ago
Read 2 more answers
I need this answered as soon as possible
n200080 [17]

Answer:

3b to the power of 3, c to the power of 4 + 2b to the power of 4, c to the power of 3b to the power of 3, c to the power of 4, + 2b tot he power of 4, c to the power of 3

Step-by-step explanation:

sorry. hope this helps I don't know how to do exponents on my computer haha

4 0
3 years ago
Find the length of AC
OverLord2011 [107]

Answer:

we can use tan to solve this

tan=opposite/adjacent

tan(a)=BC/AC

tan(34)=29/AC

ACtan(34)=29

AC=29/tan(34)

by using a calculator we see that AC=42.9942678856 or 43 rounded

Step-by-step explanation:

6 0
3 years ago
Yvonne put $4,00 in a savings account. At the end of three years, the account had earned $960 in simple interest.
julsineya [31]
Important variables to know:

I = interest
P = principal (investment)
R = simple interest rate
T = years

Formula: I = PRT

What information do we have?
I = $960
P = $4000
T = 3 years
R = ?

Plug into formula:

960 = 4000(3)(R)
960 = 12000R
R = 960/12000
R = .08

A. $4000 + $960 = $4960. (A= P+ I)
B. 8% (.08)

Part 2: 1080 = 4000*.09*3
A = 5080 - 4960 =$420.
7 0
4 years ago
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