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kkurt [141]
3 years ago
14

How do I simplify 9^7 × 9^2?

Mathematics
1 answer:
almond37 [142]3 years ago
5 0

Answer: 420

387420489

Step-by-step explanation:

9^7: 4782969

9^2: 81

81 x 47 = 387420489

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Simplify the expression and write without negative exponents:
andreyandreev [35.5K]
8sr6 + 2sr2×2×3 +5sr3 - sr2×3×3×3
=8sr6 + 2(2)sr3 + 5sr3 - 3sr2×3
=8sr6 + 4sr3 + 5sr3 - 3sr6
=8sr6 - 3sr6 + 4sr3 +5sr3
=5sr6 + 9sr3 (ans)
3 0
3 years ago
What is the lateral surface area?
Luda [366]

Answer:

56.556 square inches

Step-by-step explanation:

Surface area of an open cylindrical pipe is = πdh

3.142 × 1 × 18 = 56.556

8 0
3 years ago
X=4 for x^2 - 3x - 10<br><br> is the value of x a solution to the given inequality?
olga2289 [7]

Answer: yes

Step-by-step explanation:

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4 0
3 years ago
For each pair of points below, think about the line that joins them. For which pairs is the line parallel to the y-axis? Circle
gogolik [260]

Answer:

Option B.

Step-by-step explanation:

If two lines are parallel then their slopes are always same.

Following this rule we can find the slope by the given pairs of coordinates of the options.

If the slope of the line is same as the slope of y axis then the line passing through these points will be parallel to the y axis.

Slope of y - axis = ∞

Option A). Slope = \frac{y-y'}{x-x'}

                            =  \frac{24-8.5}{3.22-3.2}

                            = \frac{15.5}{0.02}

                            = 775

Therefore, line passing through points (3.2, 8.5) and (3.22, 24) is not parallel to y axis.

Option B). Slope of the line passing through (\frac{40}{3},\frac{14}{3}) and (\frac{40}{3},7) will be

= \frac{\frac{14}{3}-7}{\frac{40}{3}-\frac{40}{3}}

= ∞

Therefore, line passing though these points is parallel to the y axis.

Option C). Slope of the line passing through (2.9,5.4) and (7.2, 5.4)

= \frac{5.4-5.4}{7.2-2.9}

= 0

Therefore, slope of this line is not equal to the slope of y axis.

Option B. is the answer.

5 0
4 years ago
John worked 35 hours a week at buy-the-best for $8.50 per hour. so far, he has earned $3,272.50. how many weeks has john worked
babymother [125]
11 weeks
35*8.50=297.50
3272.50 / 297.50 = 11
5 0
3 years ago
Read 2 more answers
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