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3 years ago

Multiply (2.0 ⋅ 10−4) ⋅ (3.1 ⋅ 10−20). Express the answer in scientific notation. The options are:

Mathematics

1 answer:

Mkey [24]3 years ago

3 0

(2.0×10^-4)×(3.1×10^-20)
=(2.0×3.1)×(10^4×10^-20)
=6.2×10^(-4+(-20))
=6.2×10^-24. Hope it help!

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In a recent basketball game, the

statuscvo [17]

Answer:

2 points throw = 37

3 points throw = 11

Step-by-step explanation:

Given that:

Let number of

2 points = x ; 3 points = y

x + y = 48 - - - (1)

2x + 3y = 107 ---(2)

x = 48 - y

Then ;

2(48 - y) + 3y = 107

96 - 2y + 3y = 107

96 + y = 107

y = 107 - 96

y = 11

From (1)

x = 48 - 11

x = 37

2 points throw = 37

3 points throw = 11

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3 years ago

Xavier (x) has $20 more than Sara (s). Their combined money totals $90. Which system of equations represents this situation?

borishaifa [10]

Answer:

B) x + s = 90, x - s = 20

Step-by-step explanation:

x + s = 90 represents that both Xavier and Sara's money combined is $90.

x - s = 20 represents that Xavier has 20 more dollars than Sara.

8 0

2 years ago

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inn [45]

g+312 = 200 is how the equation is written

3 0

3 years ago

Read 2 more answers

The 12 inch diameter pizza for $6.99 or the large 14-inch diameter pizza for $7.99

Luden [163]

the 12 inch pizza is $1.72 per inch and the 14 inch pizza is $1.75 per inch. so the 14 inch pizza is the better choice.

8 0

3 years ago

Pls answer with explanation!

patriot [66]

Answer:

3,750 cars.

Step-by-step explanation:

We are given that the equation:

$y=9000-2.4x$

Models the relationsip between y, the number of unfilled seats in the stadium, and x, the number of cars in the parking lot.

We want to determine the number of cars in the parking lot when there are no unfilled seats in the stadium.

When there are no unfilled seats in the stadium, y = 0. Thus:

$0=9000-2.4x$

Solve for x. Subtract 9000 from both sides:

$-2.4x=-9000$

Divide both sides by -2.4:

$x=3750$

So, there will be 3,750 cars in the parking lot when there are no unfilled seats in the stadium.

4 0

3 years ago