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Marrrta [24]
3 years ago
13

Can someone solve numbers 3 and 4, and show your work plz

Mathematics
1 answer:
eduard3 years ago
8 0

3 would turn into

<u>b= b^(6+8)</u>

b= ^(3+4)

b^14/b^7 or 1/2

4 would be

a^(14+10)  /  a(5+7)  

a^24  / a^12    or 1/2


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Convert the polar equation to rectangular form: <br><br> r = 2 / [1 + sin(theta)]
iren2701 [21]
R = 2 / (1 + sin <span>θ)

Using the following relations:

R = sqrt (x^2 + y^2)
sin </span>θ = y/R
<span>
R = 2 / (1 + y/R)
R</span>(1 + y/R<span>) = 2
</span><span>R + y = 2
R = 2 - y
sqrt(x^2 + y^2) = 2 - y

Squaring both sides:
x^2 + y^2 = (2 - y)^2
x^2 + y^2 = 4 - 4y + y^2

x^2 + 4y - 4 


</span>
8 0
3 years ago
(Tough day dividing polynomials and I'm still lost!) Please help me my hands are legit numb:)
N76 [4]

Answer:

Option D. 9

Step-by-step explanation:

There are two ways to obtain the answer to the question.

Method 1:

Let 2x + 1 = 0

Making x the subject, we have

2x + 1 = 0

Collect like terms

2x = –1

Divide both side by 2

x = –1/2

Now, put the value of x into the expression 4x³ – 6x² – 8x + 7, we have:

4x³ – 6x² – 8x + 7

x = –1/2

4(–1/2)³ – 6(–1/2)² – 8(–1/2) + 7

4(–1/8) – 6(1/4) – 8(–1/2) + 7

–1/2 – 3/2 + 4 +7

– 4/2 + 4 + 7

– 2 + 4 + 7

= 9

Method 2:

Divide 4x³ – 6x² – 8x + 7 by 2x + 1

Please see attached photo for explanation.

4 0
3 years ago
If x = 9 units and h = 4 units, then what is the area of the triangle shown above?
Aleks04 [339]

Answer:

18

Step-by-step explanation:

The area of triangle is b*h/2

so it will be 36/2 which will be 18

Please mark as Brainliest

7 0
2 years ago
The perimeter of a rectuangler pool is 130 ft. the width is 4 times the length. find the length and width of the pool
Hunter-Best [27]
The width is 52ft and the Length is 13ft.
7 0
3 years ago
Q3.
umka2103 [35]

Answer:

8.48%

Step-by-step explanation:

Bill's weight decreases from 64.8 kg to 59.3 kg.

We need to find the percentage decrease in Bill's weight. It can be calculated as follows :

\%=\dfrac{64.8 -59.3 }{64.8 }\times 100\\\\=8.48\%

So, the required decrease in percentage is 8.48%.

3 0
3 years ago
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