Mathematics High School

pls answer i need help with 2 questions

Answers

Answer 1

Answer:

(2, 8) and (-2, 7)

Step-by-step explanation:

You can plug in the respective x and y values and see what works.

Related Questions

y=−2x+4 missing value ( - , -2)

30 points

Answers

Answer: Y=4

Step-by-step explanation:

Answer:

The missing value is 3.

Step-by-step explanation:

I plugged in -2 as y.

-2 = -2x+4

-2 -4 = -2x -4

-6 = -2x

-6/-2 = -2x/-2

3 = x

So the point is (3, -2)

y = 2x – 1
x + y = 2

Answers

Answer:

x = 1, y = 1

Step-by-step explanation:

plug y = 2x - 1 into the equation x + y = 2:

[tex]x + (2x - 1) = 2\\3x - 1 = 2\\3x = 3\\x = 1[/tex]

plug that into the equation y = 2x - 1

[tex]y = 2*1-1\\y=2-1\\y=1[/tex]

jared has mowed 2/5 of the yard abby says that jason has mowed 4/6 of the yard is abby correct explain

Answers

Answer:

No, she is not correct

Step-by-step explanation:

[tex]\frac{2}{5} \neq \frac{4}{6}[/tex]

[tex]\frac{2}{5} = \frac{4}{10}[/tex]

PLEASE HELP ME
Carlos needs to buy some new pencils from the school supply store. Carlos asks his classmates if they know the price for pencils. Angela says she bought 2 pencils for $0.50. Paige bought 3 pencils for $0.75, and Spencer bought 4 pencils for $1.00.

Answers

the pencils cost $0.25

Answer:

0.25

Step-by-step explanation:

The answer is 0.25 i think

Elijah walks home from school several times each week. He walks the 2.8-mile distance at an average rate of
3.3 mph. Let d(t) represent Elijah's distance from home in miles, and let t represent time in hours. Which function
represents Elijah's distance from home in terms of time?

Answers

Answer:

Elijah's" (y cualquier palabra posterior) fue ignorada debido a que hemos restringido las consultas hasta 32 palabras.

PLEASE HELP
Simplify
(8x + 3)(2^2+ 8x +9)

Answers

Answer:

64x²+128x+39

Step-by-step explanation:

Answer:

First distribute (8x + 3) into (2^2+ 8x +9)

16x^3 + 64x^2 + 72x + 6x^2 + 24x +27

Then we'll order the pairs from highest to lowest degree

16x^3 + 64x^2 + 6x^2 + 72x + 24x + 27

Then we'll add up the like terms

16x^3 + 70x^2 + 96x + 27

That should be your final answer simplified.

Which of these is the best definition of an ellipse?
A. The set of all points in a plane for which the sum of the distances
to two fixed points equals a certain constant
B. The set of all points in a plane for which the difference between
the distances to two fixed points equals a certain constant
C. The set of all points in a plane that are equidistant from a single
point and a line
D. The set of all points in a plane that are a certain distance from a
single point

Answers

Letter A just did it

which of the following is equvilent to 8

Answers

D is ur answer because 4x2 = 8

Please Help me! I don't understand and am giving up the rest of my points for help!

Answers

Answer:

x=4 y=6

Step-by-step explanation:

Please help ASAP!!!!!

Answers

Answer:

Step-by-step explanation:

i am not 100 percent sure

Please help me out with this guys

Answers

To find the x- intercept, suptitude in 0 for y and solve for x

A line is parallel to y = 4x + 1 and
intersects the point (-2,-5). What is the
equation of this parallel line?
y = [?]x + [

Answers

Answer:

y = 4x+3

Step-by-step explanation:

The equation in point slope form is expressed as y - y0 = m(x-x0)

m is the slope

(x0, y0) is the point on the line

If a line is parallel to y = 4x + 1, the slope of the line m = 4

Substitute m = 4 and the point (-2, -5) into the equation above;

y - (-5) = 4(x - (-2))

y+5 = 4(x+2)

y+5 = 4x+8

y = 4x+8-5

y = 4x + 3

Hence the equation of the line is y = 4x+3

The volume of the cone shown is 6 cubic inches. What is the height of a cone with the same base diameter but a volume of only 3 cubic inches?

Answers

Answer:

Step-by-step explanation:

6=3

Ayúdenme porfis, es para ahorita

Answers

Answer:

encuentra el área de siguiente modelo geométrico

Step-by-step explanation:

es la A porque da un total de X² + 21x+121

Which of the following is an example of a combination?
O A. Picking 3 books to take with you on vacation from a collection of
20 books
O B. Selecting a president, vice president, and treasurer
O C. The number of ways that 4 people can win 4 different prizes
O D. The number of ways that 7 books can be placed in a row on a
bookshelf

Answers

Answer:

Step-by-step explanation:

uh this is basic head knowledge for me i cant really explain

PLEASE HELP ME I WILL GIVE BRAINLIEST IV'E BEEN TRYING TO GET HELP
PLEASE HELP "A phone sells for $137.99. It is now on sale for 1/10 off the original price. Tom has a coupon for an extra 5% off the sale price. To the nearest dollar, how much less that the original price will Tom pay for the phone."

Answers

Answer:

20.01

Step-by-step explanation:

137.99x0.9=124.19

124.19x0.95=117.98

137.99-117.98=20.01

Answer:

132.9

Step-by-step explanation:

138 - 1/10 - 5

( Sorry if its wrong )

Looks very simple tho

A local restaurant charges $12 for a ham dinner and $15 for a turkey dinner. If they earned $1, 017 for their thanksgiving dinner night and they sold 35 turkey dinners, how many ham dinners did they sell?

Answers

Answer:

Step-by-step explanation:

c is directly proportional to d such that
C = 1.5d
(a) Find c when d = 12
(b) Find d when c = 15

Answers

Answer:

we have

C = 1.5d

d=C/1.5

Step-by-step explanation:

when d is 12

C=1.5×12=18

when c=15

d=15/1.5=10

help me pls i’m gonna fail the class>3

Answers

what’s the question ?

please help me (see picture)

Answers

Answer:

107 degrees

Step-by-step explanation:

to find x = 180 - (180-73-34)

x = 180 - 73

x = 107

Simplify the expression.
6x + 1/2(6x+8)
9x + 4
9 + 4x
12x + 8
9x + 8

Answers

Answer:

its b

Step-by-step explanation:

i did the test already

Find f (-12) if f (x) = -12x + 100

Answers

f(-12) = -12(-12) + 100 = 144 + 100 = 244

Answer:

244

Step-by-step explanation:

Substitute -12 as x.

f (-12) = -12(-12) + 100

f (-12) = 144 + 100

f (-12) = 244

I hope this helped! :)

In ∆PQR, if m∠P=x–12,m∠Q=5x–27, and m∠R=2x+3, write an equation and solve for x. x =

Answers

Answer:

∠p= 15° , ∠q = 108° , ∠r = 57° Is the Answer

Step-by-step explanation:

, (x -12)° + (5x-27)° + (2x + 3)° = 180°

or, 8x° -36° = 180°

Or x =

So, x = 27°

∴ ∠P = 27° -12° = 15°

∠q = (5 × 27)° -27° = 108°

∠r = (2 × 27)° + 3° = 57°

1 pts
Find the value of m.
28
(10m - 30)
Enter your answer with one decimal place.

Answers

(10m-30) = 28. 28 plus 30 is 58 and 58/10 is 5.8. M is 5.8.

28 = 10m - 30

28 + 30 = 10m

58 = 10m

10m = 58

m = 58/10

m = 5.8

You earned a 90% and an 85% on your first two homework assignments. What score do you need to earn on the third assignment to have an average of 83%?

Answers

90+85+x/3=83
175+x = 249
X=74

What is 100343242 times 7863239792

Answers

Answer: 7.8902297e+17

Step-by-step explanation:

Answer:

7.8902297e+17

Step-by-step explanation:

What is 100343242 x 7863239792= 7.8902297e+17

(hope this helps can i plz have brainlist :D hehe)

What is the difference in the areas of the polygons shown?

Answers

Answer:

the difference is the + and the -

sorry if it's wrong

solve 2x+6=34 i have no idea pls exsplain and help me :)

Answers

You want to try to isolate the x:
First subtract 6 from both sides so you get 2x=28

Then divide both side by 2 so you get x=14 which is your answer :)

ANSWER: x=14

Answer:

Step-by-step explanation:

okay.. so basically you have 2x+6=34 right? so basically i’m gonna tell you the easiest way to do this

so you’re gonna start off by separating the 2x from the 6=34.

now that you’ve done that, let’s focus on the 6=34. so to get your answer, start by subtracting 6 from 34 so (34 - 6 = 28)

now that you’ve got that, keep the number 28 in mind. youre gonna want to take 2 and multiply by x. but 2x = 28, so what do you multiply by 2 to make 28? 14. so x is 14. to check your work, let’s see.

2 x 14 + 6 = 34?

2 x 14 = 28 + 6 = 34.

34 = 34

so, x is 14. hope this helped!

simplify (4u)^2
write your answer without parenthesis

Answers

(4u)^2
= 4u*4u
= 16 u^2

The test will cover 120 pages in his textbook. He has read only 36 pages. If he plans to read an equal amount every day of the week to finish the 120 pages, how much must read each day?

Answers

Answer:

He must read each day=12 pages

Step-by-step explanation:

We are given that

Total number of pages in textbook=120

He has read number of pages=36

Number of days in a week=7

We have to find the number of pages read each day to finish 120 pages in a week.

Number of pages remaining for reading=120-36

Number of pages remaining for reading=84

Now,

Number of pages read each day=[tex]\frac{84}{7}[/tex]

Number of pages read each day=12

Hence, he must read each day=12 pages

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