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deff fn [24]
3 years ago
8

Evaluate the expression 81-8^2

Mathematics
1 answer:
Tpy6a [65]3 years ago
7 0

Answer:

17

Step-by-step explanation:

Do the exponent first, then subratct it to 81

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If JM = 5x – 8 and LM = 2x – 6, which expression represents JL?
Delvig [45]
The answer is 3x-14 . . . . . . . . . . . . 




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3 years ago
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∠B=
ikadub [295]

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Step-by-step explanation:

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2 years ago
Which number line represents the solution to the inequality 125x + 200 > 1,200?
Elza [17]

Answer:

see below

Step-by-step explanation:

25x + 200 > 1,200

Subtract 200 from each side

25x + 200-200 > 1,200-200

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Divide by 25

25x/25 >1000/25

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6 0
2 years ago
The polynomial equation x^6-16x^2=4x^4-64 has complex roots +- 2i . What are the other roots? Use a graphing calculator and a sy
Irina18 [472]
Use u subsitution the solve by grouping
u=x^2
u^3-16u=4u^2-64
u^3-4u^2-16u+64=0
(u^3-4u^2)+(-16u+64)=0
u^2(u-4)+(-16)(u-4)=0
(u^2-16)(u-4)=0
(u-4)(u+4)(u-4)=0
(u+4)(u-4)^2=0

u=x^2
(x^2+4)(x^2-4)^2=0
(x^2+4)((x-2)(x+2))^2=0
(x^2+4)(x-2)²(x+2)²=0
set to zero

x^2+4=0
x^2=-4
x=+/-2i

x-2=0
x=2

x+2=0
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the other roots are -2 and 2

for graphinc calculator, graph and find x intercepts
3 0
2 years ago
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3x - 7 - 2x + 5 = 6​
IceJOKER [234]
First combine like terms
3x - 7 - 2x + 5 = 6
x - 2 = 6
Get x by itself by adding 2 on both sides
x - 2 = 6
x = 8
Your answer is x = 8
7 0
3 years ago
Read 2 more answers
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