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3 years ago

5th grade math. correct answer will be marked brainliest.

Mathematics

1 answer:

Ksenya-84 [330]3 years ago

6 0

Answer:

Amy and Victor= 7/9

Cal and Beth= 7/10

Beth and Victor= 5/6

just subtract the fractions

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Ariel snowboarded down a mountain that has a vertical height of 1,200 feet. She traveled a distance of 2,400 feet from the top o

erica [24]

The angle of elavation would be 45°, this is because straight up would be represented by 180°, and 90°, would remain as 1200 ft traveled, and half of 90°, is 45° which would double the distance traveled

5 0

3 years ago

If a =5, 0, −1,find a vector b such that compab = 2.b = _______.

Arturiano [62]

Answer:

$b = (q,r , 5q-2\sqrt{26} )$

Step-by-step explanation:

From the question we are told that

The vector given is

$a = (5,0,-1)$

Also $comp_a b = 2$

Generally

$comp_a b = \frac{a \cdot b}{|a|}$

Here $|a|$ is the magnitude of a which is mathematically represented as

$|a| = \sqrt{5^2 + 0^2 +(-1)^2 }$

=> $|a| = \sqrt{26}$

b is vector which we will assume to have the following parameters

$b = (q , r , x)$

$comp_a b = \frac{(5,0,-1) \cdot (q,r,x)}{\sqrt{26} } = 2$

=> $\frac{5q + 0 -x}{\sqrt{26} } = 2$

=> $x = 5q-2\sqrt{26}$

Hence the vector be can be mathematically represented as

$b = (q,r , 5q-2\sqrt{26} )$

This means that the vector b is more than one value since it is made up of variable

This means that if

$q = 1\\r=1\\x =1$

Then

$b = (1,1,5-2\sqrt{26} )$

7 0

3 years ago

Simplify the expression. 7a^–5 b^3

faust18 [17]

7b^3/a^5
the negative needs to be brought to the bottom

3 0

3 years ago

Could I have a little help on this?

ivanzaharov [21]

The last one since you should first find the area of the square and then the triangle and last you add them and you will find the answer

5 0

3 years ago

Whats the value of 2.3 • (4+12)

tatyana61 [14]

Hi!

First, you have to add the addition equation.
(4 + 12) = 4 + 12 = 16

Now, the equation will look like this:
2.3 x 16

Now, you just take this equation like normal:
2.3 x 16 = 36.8

6 0

3 years ago

Read 2 more answers