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3 years ago

Multiply (2.1 x 10^3) x (3.5 x 10^2)

Mathematics

1 answer:

Westkost [7]3 years ago

6 0

The answer is A. 7.35 x 10^5
You multiply 2.1 by 3.5 and you add the exponents which are 3 and 2.

Hope this helps!

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What is a Hermitian?

Vlad1618 [11]

Answer:

A Hermitian matrix is a matrix that is equal to its conjugate transpose. This generalizes the concept of a "symmetric matrix", since every real symmetric matrix is Hermitian.

3 0

3 years ago

At the grocery store, Lily spent m dollars on milk, twice that amount on fruit, and 6 dollars less than 3 times the amount spent

AlladinOne [14]

Answer:

<u>The amount of money Lily had when she left the store, in terms of m, is 86 - 6m</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

m = Milk Lily purchased

2m = Fruit Lily purchased (twice that amount on fruit)

3m - 6 = Bread Lily purchased (6 dollars less than 3 times the amount spent on milk for bread)

Amount of money Lily entered = $ 80

2. How much money did Lily have when she left? Write your answer in terms of m.

Let's write the equation to find out the money left in terms of m, this way:

Money left = 80 - m - 2m - (3m - 6)

Money left = 80 - m - 2m - 3m + 6

Money left = 86 - 6m

<u>The amount of money Lily had when she left the store, in terms of m, is 86 - 6m</u>

3 0

3 years ago

Read 2 more answers

The length of a rectangle is 3 times the width. The difference between the length and the width is 8 feet. Determine the rectang

Fynjy0 [20]

Answer:

Width = 4 feet

Step-by-step explanation:

Let l = length

Let w = width

l = 3w

l - w = 8

3w - w = 8

2w = 8

w = 4

5 0

3 years ago

A construction crew is lengthening a road that originally measured 41 miles. The crew is adding one mile to the road each day. T

devlian [24]

Answer:

69 miles

Step-by-step explanation:

Put the number in place of the variable representing it and do the arithmetic.

L = 41 +28 = 69

After 28 days, the length of the road is 69 miles.

6 0

3 years ago

Kevin uses 2 and 1/4 cups of ravens for every half cup of peanuts when making a snack mix how many cups of raisins does Kevin us

Dmitrij [34]

Answer:

For 1 cup of peanut Kevin will use $\frac{9}{2} \ cups \ \ \ OR \ \ \ 4\frac{1}{2} \ cups$ of raisins.

Step-by-step explanation:

Given:

$\frac{1}{2}$ cups of peanuts = $2\frac{1}{4}$ cups of raisin

$2\frac{1}{4}$ can be rewritten as $\frac{9}{4}$

$\frac{1}{2}$ cups of peanuts = $\frac{9}{4}$ cups of raisin

We need to find number of cups of raisins used in 1 cup of peanut.

Solution:

Now we know that;

$\frac{1}{2}$ cups of peanuts = $\frac{9}{4}$ cups of raisin

So 1 cup of peanut = number of cups of raisins used in 1 cup of peanut

Now by using Unitary method we get;

number of cups of raisins used in 1 cup of peanut = $\frac{\frac{9}{4}}{\frac{1}{2}}=\frac{9}{4}\times \frac{2}{1} = \frac{9}{2} \ cup \ \ \ OR \ \ \ 4\frac{1}{2} \ cup$

Hence For 1 cup of peanut Kevin will use $\frac{9}{2} \ cups \ \ \ OR \ \ \ 4\frac{1}{2} \ cups$ of raisins.

5 0

3 years ago