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mina [271]
3 years ago
8

HELP HELP HELP ALSO CHECK MY OTHER QUESTION ITS WORTH 50 POINTS I NEED HELP THERE TOO

Mathematics
1 answer:
iris [78.8K]3 years ago
7 0

Answer:

Part A: 6r + 5

Part B: r = 9

The rectangle measures 20 inches by 59 inches

Step-by-step explanation:

Part A:

(18r^(2)-27r-35)/3r-7

=6r + 5

Part B:

I just divided 1180 by the numbers on the list until I got an answer that was another number on the list. Then i took the greater number, 59, and set 6r + 5 equal to that like so:

6r + 5 = 59

6r = 54

r = 9

and i set 3r - 7 equal to the smaller number, 20:

3r - 7 = 20

3r = 27

r = 9

Hope this helps.

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(3x4)^4 simplify using power rule
hichkok12 [17]

Answer:

12 to the fourth power

4 0
3 years ago
0.59 O 2/3<br><br> A. =<br> B. &gt;<br> C. &lt;<br> D. none of the above
egoroff_w [7]
0.59 and 2/3

0.59
0.66

0.59 < 2/3

2/3 is greater than 0.59.

Answer :
6 0
3 years ago
If 2(4x + 3)/(x - 3)(x + 7) = a/x - 3 + b/x + 7, find the values of a and b.
zmey [24]

Answer:

a=3 and b=5.

Step-by-step explanation:

So I believe the problem is this:

\frac{2(4x+3)}{x-3}(x+7)}=\frac{a}{x-3}+\frac{b}{x+7}

where we are asked to find values for a and b such that the equation holds for any x in the equation's domain.

So I'm actually going to get rid of any domain restrictions by multiplying both sides by (x-3)(x+7).

In other words this will clear the fractions.

\frac{2(4x+3)}{x-3}(x+7)}\cdot(x-3)(x+7)=\frac{a}{x-3}\cdot(x-3)(x+7)+\frac{b}{x+7}(x-3)(x+7)

2(4x+3)=a(x+7)+b(x-3)

As you can see there was some cancellation.

I'm going to plug in -7 for x because x+7 becomes 0 then.

2(4\cdot -7+3)=a(-7+7)+b(-7-3)

2(-28+3)=a(0)+b(-10)

2(-25)=0-10b

-50=-10b

Divide both sides by -10:

\frac{-50}{-10}=b

5=b

Now we have:

2(4x+3)=a(x+7)+b(x-3) with b=5

I notice that x-3 is 0 when x=3. So I'm going to replace x with 3.

2(4\cdot 3+3)=a(3+7)+b(3-3)

2(12+3)=a(10)+b(0)

2(15)=10a+0

30=10a

Divide both sides by 10:

\frac{30}{10}=a

3=a

So a=3 and b=5.

4 0
3 years ago
Read 2 more answers
What is the solution to this equation?
Aleks04 [339]

b) -4

- 8x +4 =36

First, we subtract 4 from 36 to get 32

36-4=32

-8x=32

Since a negative times a negative equals a positive, then the answer has to be negative because 36 is positive.

32 divided by 8 = 4

B) -4

4 0
3 years ago
Read 2 more answers
Naruto ran 634 miles today, and Sakura Ran412 miles. How many times the length of Sakura's distance was Naruto's distance? Selec
dezoksy [38]

Answer:

Step-by-step explanation:

The question reads much more complicatedly than the actual equation.

Sakura * x = Nanuto

412 x = 634     Divide by 412

x = 634/412

x = 1.54 times

The closest answer is 3/2 as far. 1.54 is just about 3/2.

6 0
3 years ago
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