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Olenka [21]
2 years ago
10

A student started solving the system of equations by elimination and made a mistake in solving x. What is the error?

Mathematics
1 answer:
Lorico [155]2 years ago
5 0
Answer is A.

step 1 , 16 was not multiplied by 9
should be

54x - 9y = 144

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20 PTS What is the sixth term of the sequence shown in the table? Term Value 1 –46,656 2 7,776 3 –1,296 4 216 5 6 {SEE IMAGE}
olganol [36]

Answer:

a₆ = 6

Step-by-step explanation:

There is a common ratio r between consecutive terms in the sequence, that is

r = \frac{216}{-1296} = \frac{-1296}{7776} = \frac{7776}{-46656} = - \frac{1}{6}

This indicates the sequence is geometric.

To obtain any term in the sequence, multiply the previous term by r, thus

a₅ = 216 × - \frac{1}{6} = - 36

a₆ = - 36 × - \frac{1}{6} = 6

8 0
3 years ago
Reduce each fraction:<br><br> 84 over 105
Alenkinab [10]

Answer:

84/105= 8/10=4/5

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
3.2 geometry worksheet
alekssr [168]

Answer/Step-by-step explanation:

5. 21x + 4 = 22x - 2 (corresponding angles)

Collect like terms

21x - 22x = -4 - 2

-x = -6

divide both sides by -1

x = 6

6. (x + 72) + (x + 132) = 180 (linear pair)

x + 72 + x + 132 = 180

Add like terms

2x + 204 = 180

2x = 180 - 204

2x = -24

x = -12

7. 90 = 22x + 2 (vertical angles)

90 - 2 = 22x

88 = 22x

Divide both sides by 22

4 = x

x = 4

8. 12x + 10 = 13x + 3 (vertical angles)

Collect like terms

12x - 13x = -10 + 3

-x = -7

Divide both sides by -1

x = 7

9. 17x = 16x + 5 (alternate exterior angles)

17x - 16x = 5

x = 5

✔️17x

Plug in the value of x

17(5) = 85°

10. 21x - 6 = 20x (corresponding angles)

Add like terms

21x - 20x = 6

x = 6

✔️20x

20(6) = 120°

3 0
3 years ago
What is the surface area of this figure?
Mkey [24]

Answer:

100

Step-by-step explanation:

hope this helped

stay safe

brainliest is appreciated only 1more to level up please help :)))

8 0
3 years ago
How do you write out exponential growth of <br> 4=314(1.15)^x
NikAS [45]

Answer:

-10.76

Step-by-step explanation:

Let's solve your equation step-by-step.

4=314(1.5x)

Step 1: Flip the equation.

314(1.5x)=4

Step 2: Divide both sides by 314.

314(1.5x)/314

=

4/314

1.5x=2/157

Step 3: Solve Exponent.

1.5x=2/157

log(1.5x)=log(2/157)(Take log of both sides)

x*(log(1.5))=log(2/157)

x=

log(2/157)

log(1.5)

x=−10.760725

Answer:

x=−10.760725

5 0
2 years ago
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