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Softa [21]
3 years ago
5

Solve for x: 3^2-x=5^2x+1

Mathematics
1 answer:
Vika [28.1K]3 years ago
4 0

Answer:

√ 30 /5 ,  − √ 30 /5

Step-by-step explanation:

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CCSS Math 7
Andre45 [30]

Answer:

1.

a = 112

b = 68

c = 68

2.

a = 127

3.

a=35

b=40

c=35

d=70

4.

a= 30

b=70

c = 30

d=70

e = 130

I'll help you with the rest later

Step-by-step explanation:

a = 112 because of allied angles rule

b and c = 68 because of angles at a point

360-112-112 ÷2

2. a = 127 because of angles on a straight line rule.

180-38-15

3. d= 70, vertically opposite angle

using angles on a straight line, 180 - 70 - 40 ÷ 2

we now have the two angles and because they are vertically opposite a and c = 35

b = 40 because of vertically opposite angles

4. a=30 because 90-70

since a=30, take 90 - 30 to get b, 70

d= 70, vertically opposite angles

e = 130 because a+b+c, vertically opposite angles

7 0
2 years ago
Alex $8000 in a savings account that earns 3.25 % annually. How much will he earn in interest in 6 months?
kotegsom [21]
<h3>Answer:  $130</h3>

=======================================================

Explanation:

I'm assuming the bank is using simple interest (instead of compound interest).

If so, then,

i = P*r*t

i = 8000*0.0325*0.5

i = 130

The amount of interest is $130

In the formula above, I used

  • P = 8000 = amount deposited
  • r = 0.0325 = annual interest rate in decimal form
  • t = 6/12 = 0.5 years, which means you don't use t = 6. We don't use t = 6 because the interest rate is on an annual basis, and not a 6-month basis.
6 0
2 years ago
Question 4 (1 point)
kow [346]

Answer:

pretty sure its A n B = {1,5}

Step-by-step explanation:

8 0
3 years ago
Factored form of x2-4x-5
Serga [27]
<span> x</span>² <span>- 4x - 5 = </span>(x + 1)(x - 5)

4 0
3 years ago
Solve fort.<br> 2(t+1) = 10
Zarrin [17]

Answer:

t=4

Step-by-step explanation:

2(t+1)=10

t+1=10/2

t+1=5

t=5-1

t=4

5 0
3 years ago
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