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2 years ago

HELLPP PLEASE OMGG I WILL GIVE YOU ALL MY POINTSS

Mathematics

2 answers:

tamaranim1 [39]2 years ago

5 0

Answer:

You had $10 in the begging but got/found more.

Step-by-step explanation:

azamat2 years ago

3 0

Answer:

You had $30

Step-by-step explanation:

The answer is 30 because he said that he had 10 dollars and 20 which means he had 30 dollars the other money was given to him.

P.S Can I have brainliest? (I don't deserve brainliest the other guy got it first.)

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What is the result of substituting for y in the bottom equation?

jeka57 [31]

The answer is the option A, which is: A. x-7=x²+2x-4
The explanation is shown below:
To solve this problem you must apply the proccedure shown below:
1. You have the following system equations given in the problem above:
y=x-7
y=x²+2x-4
2. Therefore, when you substitute for y in the bottom equation, you obtain:
x-7=x²+2x-4

8 0

3 years ago

Read 2 more answers

• Manuela has two boxes. The larger of the two boxes has dimensions of 15 cm

valkas [14]

Answer:

6500 cm^3.

Step-by-step explanation:

That would be the volume of the large box - the volume of the cube

= 15*25*20 - 10^3

= 7500 - 1000

= 6500 cm^3.

8 0

3 years ago

find the angle between the vectors. (first find the exact expression and then approximate to the nearest degree. ) a=[1,2,-2]. B

SashulF [63]

Answer:

$\theta = cos^{-1} (\frac{10}{\sqrt{9} \sqrt{25}})=cos^{-1} (\frac{10}{15}) = cos^{-1} (\frac{2}{3}) = 48.190$

Since the angle between the two vectors is not 180 or 0 degrees we can conclude that are not parallel

And the anfle is approximately $\theta \approx 48$

Step-by-step explanation:

For this case first we need to calculate the dot product of the vectors, and after this if the dot product is not equal to 0 we can calculate the angle between the two vectors in order to see if there are parallel or not.

a=[1,2,-2], b=[4,0,-3,]

The dot product on this case is:

$a b= (1)*(4) + (2)*(0)+ (-2)*(-3)=10$

Since the dot product is not equal to zero then the two vectors are not orthogonal.

Now we can calculate the magnitude of each vector like this:

$|a|= \sqrt{(1)^2 +(2)^2 +(-2)^2}=\sqrt{9} =3$

$|b| =\sqrt{(4)^2 +(0)^2 +(-3)^2}=\sqrt{25}= 5$

And finally we can calculate the angle between the vectors like this:

$cos \theta = \frac{ab}{|a| |b|}$

And the angle is given by:

$\theta = cos^{-1} (\frac{ab}{|a| |b|})$

If we replace we got:

$\theta = cos^{-1} (\frac{10}{\sqrt{9} \sqrt{25}})=cos^{-1} (\frac{10}{15}) = cos^{-1} (\frac{2}{3}) = 48.190$

Since the angle between the two vectors is not 180 or 0 degrees we can conclude that are not parallel

And the anfle is approximately $\theta \approx 48$

3 0

2 years ago

The easiest way to find THE SLOPE on a graph? Please HELP

ratelena [41]

Step-by-step explanation:

Pick two points on the line and determine their coordinates

Select one to be (x1, y1) and the other to be (x2, y2)

Finally use the slope intersect equation to calculate the slope:

Formula-

y = mx + b

Hope this helps, let me know if you need more information, I'll be glad to help! :)

3 0

2 years ago

The Jacksons sublet their summer cottage during the winter and spring months. For each month they receive 72% of their monthly m

miskamm [114]

Answer:

7,560

Step-by-step explanation:

70% of 1750 × 6 = 7,560

3 0

2 years ago

HELLPP PLEASE OMGG I WILL GIVE YOU ALL MY POINTSS​

HELLPP PLEASE OMGG I WILL GIVE YOU ALL MY POINTSS