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3 years ago

1. A car travels 40 miles west then goes 30 miles north. How far is the car from its starting point?

Mathematics

2 answers:

Setler [38]3 years ago

3 0

10 miles in since they turned around, but if your adding then its 70 miles

garik1379 [7]3 years ago

3 0

Answer:70 or 50

Step-by-step explanation:

40+30=70 unless you are dividing the 40 because it is not straight ahead. then it would be 50 you decide.

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EXPONENTS: What is the value of 7 cubed? A. 14 B. 21 C. 49 D. 343

quester [9]

Answer:

Step-by-step explanation:

7*7=49

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3 years ago

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Does (1,-2) (2,1) (3,0) (4,2) represent a function Yes or No?

Artemon [7]

Answer:

Step-by-step explanation:

x= 1, 2, 3, 4

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2 years ago

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<img src="https://tex.z-dn.net/?f=%20%7B2%7D%5E%7Bm%7D%20%20%3D%20n%20" id="TexFormula1" title=" {2}^{m} = n " alt=" {2}^{m} =

sveta [45]

Answer:

$\displaystyle n^3-\frac{1}{n^{2}}$

Step-by-step explanation:

Exponents Properties

We need to recall the following properties of exponents:

$(a^x)^y=(a^y)^x=a^{xy}$

$\displaystyle a^{-x}=\frac{1}{a^x}$

We are given the expression:

$2^m=n$

We need to express the following expression in terms of n.

$8^m-4^{-m}$

It's necessary to modify the expression to use the given equivalence.

Recall $8=2^3 \text{ and }4 = 2^2$ . Thus:

$(2^3)^m-(2^2)^{-m}$

Applying the property:

$(2^m)^3-(2^m)^{-2}$

Substituting the given expression:

$n^3-n^{-2}$

Or, equivalently:

$\mathbf{\displaystyle 8^m-4^{-m}= n^3-\frac{1}{n^{2}}}$

5 0

3 years ago

Will give brainliest

posledela

Answer:

I think its the lifo method im not sure but i had a question like this in class

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2 years ago

What did I do wrong here?

photoshop1234 [79]

Answer:

You put 8i^2 instead of 12i^2. You multiply -6i by -2i which equal -12i^2

Step-by-step explanation:

-7 + 6i - 14i+ 12i^2

-7 - 8i - 12

-19 - 8i

7 0

3 years ago