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3 years ago

Which of the following is the radical expression of a to the four ninths power ?

1 answer:

8 0

First if a>0 sqrta=a^(1/2), and (a^p)^q=a^pxq

sqrt(a^4/9)= (a^4/9)^1/2=a^4/9x1/2=<span>a^(2/9)
so the answer is </span><span>a^(2/9)</span>

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Molly opened a bank account. She deposited $86.50 into her account every month for 20 months. She used $24.50 every month to pay

Andreas93 [3]

Hi!

Let's write an equation to solve this.

$\frac{(86.50 - 24.50) · 20}{4}$ = ?

Solve

$\frac{62 · 20}{4}$ = ?

$\frac{1240}{4}$ = ?

310

The answer is $310.

Hope this helps! :)

-Peredhel

3 0

4 years ago

A line segment ad, contains points b & c such that c is between a and d, and b is between a and

egoroff_w [7]

If you drew out this line segment with the points in the order we are given them, the segment would be labeled as a, b, c, d in that order. We are given a measure for ab, and we are also given a measure for bd with c being ignored for a minute. The entire length of the segment can be found by adding ab and bd. 6 + 23 = ad and ad = 29. So the length of the whole segment is 29. We have the length of cd given to be equal to ab, so cd = 6. ab + bc + cd = ad and we are looking for bc. Since we have the other lengths and the length of the whole segment, we fill in accordingly: 6 + bc + 6 = 29. Solving for bc we get bc = 17.

3 0

3 years ago

Ivan tried to evaluate the expression 6 - 2 + 4 x 9. Here is his work:

faltersainse [42]

I believe he is correct because you add/subtract from left to right, hence

6-2 comes first.

PEMDAS

()^X/+-

4 0

4 years ago

Read 2 more answers

put the steps for rewriting the equation of a circle below in standard form completing the square in order

sergeinik [125]

Answer:

a) 1.

f)6.

d)5.

c)7.

g)3.

e)4.

b)2.

Step-by-step explanation:

putting the steps for rewriting the equation of a circle below in standard form completing the square in order:

Step 1)

a. where 36 is added on both sides of the equation

as it is square of half of 12.

x^2 +12x+36 +y^2 +30y=24+36 ..........(1)

Step 2)

f. where 225 is added on both sides of equation as it is square of half of 30

x^2 +12x+36 +y^2 +30y+225=24+36+225 ............(6)

Step3)

d. adding numbers on r.h.s

x^2 +12x+36 +y^2 +30y+225=285 ............(5)

Step4)

c) Factoring the x values into binomial factors

(x+6)(x+6) +36 +y^2 +30y+225=285 .............(7)

Step5)

g) re-writing x factors as squares

(x+6)^2 +36 +y^2 +30y+225=285 ...............(3)

Step6)

e)Factoring the y values into binomial factors

(x+6)^2 +36 +(y+15)(y+15)=285 ...............(4)

Step7)

b)re-writing x factors as squares

(x+6)^2 +36 +(y+15)^2=285 ...........(2)!

4 0

3 years ago

Can someone please help me with this one? I’m very confused, how can you solve for the width if the problem doesn’t tell you wha

Marizza181 [45]

Answer:

A. (2x-3)/2

Step-by-step explanation:

Performing the long division indicated by the perimeter expression, you find ...

perimeter = (2x -3) + (10x +6)/(x^2 +2x)

Comparing this to the formula for the perimeter ...

perimeter = 2W +2L

where L is said to be of the form (ax +b)/(x^2 +2x)

we can match terms in the perimeter expression to see that ...

2W = 2x -3

2L = (10x +6)/(x^2 +2x)

The problem doesn't ask for it, but we can see that (a, b) = (5, 3). We can also see that ...

W = (2x -3)/2 . . . . . . . matches choice A

4 0

3 years ago