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3 years ago

7

The surface area of the planet Saturn is about 42,700,000,000 square kilometers. In scientific notation, the number is written a

s 4.27 x 10°. What is the value
of a?

1 answer:

anygoal [31]3 years ago

3 0

Answer:

427

Step-by-step explanation:

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What substitution should be used to rewrite 4x^4-21x^2+20=0 as a quadratic function?

pogonyaev

Answer:

see explanation

Step-by-step explanation:

Let u = x² ( choice of variable is flexible ), then

4u² - 21u + 20 = 0 ← expressed as a quadratic

This can now be solved for u and converted back into terms of x

3 0

3 years ago

Read 2 more answers

Point m is located at 4,-2 what is located 2 units for point m

eimsori [14]

Answer:

None

Step-by-step explanation:

Given

$m = (4,-2)$

Required

Point 2 units from m

There are 4 possible points 2 units from m and they are:

$m' = (4+2,-2) = (6,-2)$

$m" = (4,-2+2) = (4,0)$

$m'''= (4-2,-2) = (2,-2)$

$m'''' = (4,-2-2) = (4,-4)$

From the graph, we have:

$A = (4,2)$

$B = (-4,2)$

$C = (2,-3)$

None of the points is 2 units from m

7 0

3 years ago

The ratio of newspapers to magazines at the corner store is 9 to 5. Which combination of newpapers and magazines could the corne

neonofarm [45]

Answer:

9 newspapers and 5 magazines

18 newspapers and 10 magazines

27 newspapers and 15 magazines

36 newspapers and 20 magazines

45 newspapers and 25 magazines

54 newspapers and 30 magazines

63 newspapers and 35 magazines

72 newspapers and 40 magazines

81 newspapers and 45 magazines

90 newspapers and 50 magazines

Step-by-step explanation:

You basically just have to follow this formula

9x newspapers and 5x magazines

x can equal literally any positive integer you want!

just make sure you multiply the 9 and the 5 by the same numebr to keep the ratio the same!

5 0

3 years ago

G fewer than the quotient of h and f

dangina [55]

Answer:

h/f - g

Step-by-step explanation:

Write "the quotient of h and f" first: h/f

"g fewer than this quotient" is expressed as h/f - g.

4 0

3 years ago

Mr. Falk is going to replace the carpet in his basement. The basement is

Rzqust [24]

<h3>Answer: 1728 dollars</h3>

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

Explanation:

1 yard = 3 feet

We'll divide by 3 to convert from feet to yards

27 feet = 27/3 = 9 yards
18 feet = 18/3 = 6 yards

The basement is 9*6 = 54 square yards in floor area.

At $32 per square yard, the total cost to carpet the floor is 32*54 = 1728 dollars.

7 0

3 years ago