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Rashid [163]
3 years ago
14

Which ordered pair is a solution of the equation y=7x-2

Mathematics
1 answer:
umka2103 [35]3 years ago
7 0

Answer:

(1, 5), (3, 19) (-1, -9)

Step-by-step explanation:

really need the choices

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Alex wrote the equation c=2n. Describe a situation that this equation could represent.
nevsk [136]
There were 2 times as many caps as nails
make an equation

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7 0
2 years ago
Tyna simplified the expression StartFraction 3 x cubed Over 12 x Superscript negative 2 Baseline EndFraction to StartFraction x
Yuki888 [10]

Answer:

She divided the coefficients incorrectly

Step-by-step explanation:

A. She divided the coefficients incorrectly.

B. She added the exponents instead of subtracting them.

C. She divided the coefficients instead of subtracting them.

D. She subtracted the exponents instead of dividing them.

Correct calculation:

3x³/12x^-2

= 3x³ ÷ 12x^-2

= 3x³ ÷ 1/12x²

= 3x³ × 12x²/1

= 36x^5

Tyna's calculation:

3x³/12x^-2 = x/4

3 0
2 years ago
-52.5 as a mixed number
Thepotemich [5.8K]

-52 and 1/2


Ik its late

3 0
3 years ago
According to the article "Fatigue Testing of Condoms" (Polymer Testing, 2009: 567–571), "tests currently used for condoms are su
daser333 [38]

Answer:

99% Confidence interval:  (1196,1973)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 20

Mean, μ = 1584

Standard Deviation, σ = 607

99% Confidence interval:  

\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}  

Putting the values, we get,  

t_{critical}\text{ at degree of freedom 19 and}~\alpha_{0.01} = \pm 2.86  

1584 \pm 2.86(\dfrac{607}{\sqrt{20}} )\\\\ = 1584 \pm 388.18\\ = (1195.82 ,1972.18)\\ \approx (1196,1973)

Thus, there is a 99% chance that it will break in approximately 1196 to 1972

6 0
2 years ago
A) x²when x=5<br>b) y²when y=-2<br>c)z²when z=0.5​
Hoochie [10]

Answer:

1.25 \\ 2. - 4 \\ 3.0.25

Step-by-step explanation:

How to find x²

exp. \\  {5}^{2}  = 5 \times 5 = 25 \\  {5}^{3}  = 5 \times 5 \times 5 = 125

8 0
3 years ago
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