Ask question

Ask question

All categories

3 years ago

10

Helpppppppppppppppppppp plsss

1 answer:

insens350 [35]3 years ago

5 0

Answer:

25

Step-by-step explanation:

he got an 80 so if that was his grade by answering 20 questions right then the correct answer would be 25 questions

You might be interested in

What does e^-infinity and e^infinity equal to? Explain your answer

Colt1911 [192]

Remember that e is equals to 2.717 something and to find the value of the infinities, you must consider there signs. So the e^infinity approaches to infinity while the e^-infinity approaches to zero. I hope you are satisfied with my answer and feel free to ask for more

8 0

3 years ago

What value of x makes the equation 5 (x-1)-8= -5 +4 (x-2) true?<br> need anwser asap

Mnenie [13.5K]

Answer:

you haft to

Step-by-step explanation:

tgake the 6 and the 1 and divide it by 468. then you have to do 1 + 76 and u get anser. hope you liked anser :)

6 0

4 years ago

Read 2 more answers

If the price a note book is RM3000 after 40% discount, find the original price of the note book?

andrey2020 [161]

Hey there!

The answer for your problem is: $1800

Let me know if you'd like me to explain how I got this answer!

3 0

4 years ago

Item 15 Question 1 Show that quadrilateral WXYZ with vertices W(−1,6), X(2, 8), Y(1, 0), and Z(−2,−2) is a parallelogram by find

Aliun [14]

Answer:

Multiple answers

Step-by-step explanation:

A parallelogram is a flat shape that has four sides. The two sets of opposite sides are parallel and of equal length to each other.

To prove that our figure is a parallelogram we first get the slope of our sides.

The formule we use to get the slope is:

m = $\frac{y-y1}{x-x1}$

first we have the W-Z side that it's supossed to be parallel to X-Y side

if we use our formule to calculate the slope of W-Z:

$\frac{6-(-2)}{-1-(-2)}$ = $\frac{8}{1}$ = 8

if we use our formule to calculate the slope of X-Y:

$\frac{8-0}{2-1}$ = $\frac{8}{1}$ = 8

We know that parallel lines will never intersect because they have the same slope, therefore W-Z side is parallel to X-Y side

2. Then we have the W-X side that it's supossed to be parallel to Z-Y side

if we use our formule to calculate the slope of W-X:

$\frac{6-8}{-1-2}$ = $\frac{-2}{-3}$

if we use our formule to calculate the slope of Z-Y:

$\frac{-2-0}{-2-1}$ = $\frac{-2}{-3}$

We know that parallel lines will never intersect because they have the same slope, therefore W-X side is parallel to Z-Y side

Then we have to prove that the parallalel sides are equal length to each other.

The formule we use to get the distance between two points is:

$\sqrt{(x2-x1)^{2}+(y2-y1)^{2} }$

We calculate the lenght of the W-Z side that it's supossed to be equal to X-Y side:

W-Z = $\sqrt{(-1-(-2))^{2}+(6-(-2))^{2} }$ = $\sqrt{65}$

X-Y = $\sqrt{(2-1)^{2}+(8-0)^{2} }$ = $\sqrt{65}$

So the W-Z side have the same lenght to X-Y side.

We calculate the lenght of the W-X side that it's supossed to be equal to Z-Y side:

W-X = $\sqrt{(-1-2)^{2}+(6-8)^{2} }$ = $\sqrt{13}$

Z-Y = $\sqrt{(-2-1)^{2}+(-2-0)^{2} }$ = $\sqrt{13}$

So the W-X side have the same lenght to Z-Y side.

6 0

3 years ago

Sofia is helping set up for a wedding. There are 80 chairs that need to be arranged in a room, and 60% of those chairs are still

Genrish500 [490]

Answer:

48

Step-by-step explanation:

10% of 80 is 8 and 20% is 16 so lets do 40% which is 32 60% 32+16=48 8x10=80

6 0

3 years ago