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3 years ago

10

David invested 220 in a savings account that’s offers a 3% return on the investment the value of David’s investment will be at l

east 400 after how many years

2 answers:

pishuonlain [190]3 years ago

7 0

Answer:

It’s 20 years rounded

Step-by-step explanation:

Levart [38]3 years ago

5 0

Zzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

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Find the missing factor 4n^2+9n+2=(4n+1)( ? ) <br> Please help me I don't know how to do this!

Bess [88]

The missing factor would be (n+2)... If you wanted to understand it, you simply solve 4n^2+9n+2 which gives you (4n+1)(n+2).

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3 years ago

Can you help me with these two questions please !!!!

zubka84 [21]

Answer: $(x+2)^{2}+(y-4)^{2} =16$

and

$(x-6)^{2} +(y+4)^{2} =20$

Step-by-step explanation:

Equation for a Circle

$(x-h)^{2} +(y-k)^{2} =r^{2}$

h= -2 k= 4 r= 4

$(x+2)^{2}+(y-4)^{2} =16$

Part 2

Complete the Square

$x^{2} +y^{2} -12x+8y+32=0\\(x^{2}-12x+-)+(y^{2}+8y)=-32\\(x^{2} -12x+36)=(y^{2} +8y+16)=-32+36+16\\\\(x-6)^{2} +(y+4)^{2} =20$

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3 years ago

Read 2 more answers

The difference of three times a number and 1 is the same as twice the number find the number

zysi [14]

3x - 1 = 2x
3x = 2x + 1
3x - 2x = 1
x = 1

6 0

3 years ago

Choose the lowest common denominator.

Brilliant_brown [7]

1) 8

2) $-\frac{3}{4}=-\frac{6}{8}$ , so it is equal to $-\frac{6}{8}+\frac{5}{8}$

3) 1/8

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2 years ago

3 over 2 y _3 + 5 over 3 z when y = 4 and z =3

Lisa [10]

Answer:

The answer should be 739. If I read what you wrote right.

<em>Step</em><em> </em><em>By</em><em> </em><em>Step</em><em> </em><em>Explanation</em><em>:</em>

3^2+y-3+3^5z

3^2+4-3+3^5(3)

9+4-3+729

739

7 0

4 years ago