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Andrei [34K]
3 years ago
5

One solution to the problem below is 5 what ya the other solution a^2-25=0

Mathematics
1 answer:
Alex3 years ago
5 0

-5

a^2-25=0

a^2=25

take the square root of both sides

a=5, and -5

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PLEASE HELP 94 POINTS (might take awhile but its worth it)
STatiana [176]
Hello,


1   .65 + 0.20(65) = 65 + 13 = 78
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2.  I posted a file to help you on this question!

3. <span>Find principal by using the formula </span><span>I=P⋅i⋅t</span><span>, where </span>I<span> is interest, </span>P<span> is total principal, </span>i<span> is rate of interest per year, and </span>t<span> is total time in years.
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4 0
3 years ago
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Which graph represents the same relation as the set StartSet (negative 3, 2), (5, 5), (3, 3), (3, negative 2) EndSet?
ikadub [295]

Answer:

The second graph

Step-by-step explanation:

4 0
3 years ago
Two points A (-2, 9) and B (4, 8) lie on a line l. (i) Find the slope of the line l. (2)marks (ii) Find the coordinates of the m
White raven [17]

Answer :

  • 1 (i).
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8 0
3 years ago
Last year Marta invested money in two accounts. The first account had an interest rate of 3% and the second account had an inter
KatRina [158]

The amount invested in the first account is $9,300 while the amount invested in the second account is $8,800.

<h3>How do we calculate the amount invested?</h3>

Let x represents the amount invested in the first account.

Therefore, we have:

Amount invested in the second account = x - 500

Interest income from first account = 3% * x = 0.03x

Interest income from second account = 5% * (x - 500) = 0.05x - 25

Total interest income = 0.03x + 0.05x - 25 = 719

Solving for x, we have:

0.08x = 719 + 25

x = 744 / 0.08

x = $9,300

Substituting for x, we have:

Amount invested in the second account = $9,300 - $500 = $8,800

Learn more about the amount invested here: brainly.com/question/24132106.

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3 0
2 years ago
If 2x – 10y = -1 and 5x + 6y = 4 are true equations, what would be the value<br> of 7x - 4y?
Zigmanuir [339]

Answer:

Step-by-step explanation:

If the equations are true, they can be solved simultaneously.

Consider 2x-10y=-1 as Eq1 and 5x+6y=4 as Eq2

Multiplying Eq1 with 3 and Eq2 with 5 we get,

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Plugin x=17/31 in Eq3,

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Plug In values of x and y in 7x-4y we get,

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So the value of 7x-4y = 3.

8 0
2 years ago
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