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3 years ago

17. Jing has $800 to deposit into two different savings accounts.

Mathematics

1 answer:

Olin [163]3 years ago

7 0

Answer:

$864.88

Step-by-step explanation:

(1. $600 + $49.50 = $649.50

(2. $200 + $15.38 = $215.38

$649.50 + $215.38 = $864.88

A = $864.88

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What are the possible values of x in 8x^2+4x=-1

Vladimir79 [104]

Answer:

$x1=-0.25(+)(0.25i)$

$x2=-0.25(-)(0.25i)$

Step-by-step explanation:

we have

$8x^{2}+4x=-1$

Factor the leading coefficient

$8(x^{2}+0.5x)=-1$

Complete the square. Remember to balance the equation by adding the same constants to each side.

$8(x^{2}+0.5x+1/16)=-1+1/2$

$8(x^{2}+0.5x+1/16)=-1/2$

$(x^{2}+0.5x+1/16)=-1/16$

Rewrite as perfect squares

$(x+0.25)^{2}=-1/16$

remember that

$i=\sqrt{-1}$

$(x+0.25)=(+/-)(0.25i)$

$x=-0.25(+/-)(0.25i)$

$x1=-0.25(+)(0.25i)$

$x2=-0.25(-)(0.25i)$

6 0

3 years ago

A) 3a + 5 (2a + 6) - 7a

Mrac [35]

Answer:

A) 3a+10a+30-7a

=6a+30

B) 6b-32b+72+3b

=72+23b

3 0

3 years ago

Use the greatest common factor and the distributive property to write equivalent expressions in factored form.

Marta_Voda [28]

Answer:

ab(28) or 28ab

Step-by-step explanation:

13ab + 15ab = 28ab

8 0

2 years ago

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At which root does the graph of f(x)=(x+4)^6(x+7)^5 cross the x axis

jarptica [38.1K]

Answer:

-7.

Step-by-step explanation:

At the point -4 the graph just touches the x axis ( as its an even power) but at x = -7 it crosses the x axis ( because of the odd power 5).

The graph rises from the left and pass through the x axis at (-7,0).

7 0

3 years ago

PLEASE HELP ANYONE

kenny6666 [7]

Answer:

Step-by-step explanation:

4 or greater: 1/2 (4,5,6)

4 or smaller: 2/3 (1,2,3,4)

1/2 * 2/3 = 2/6

2/6 = 1/3

1/3 = 0.333

6 0

3 years ago

Read 2 more answers