Mathematics High School

Use substitution method to solve for x and y.

y = -8x -23 ...........(i)
y = 4x + 1 ............(ii)

Answers

Answer 1

Answer:

X=-2, y=-7

Step-by-step explanation:

Use Substitution Method To Solve For X And Y.y = -8x -23 ...........(i)y = 4x + 1 ............(ii)

Related Questions

For the following system is the 2nd equation to make substitution for y in the first equation 2x+y=6 y=3x+4

Answers

Answer:

x= -20/3 y= -8/3

Step-by-step explanation:

x= -20/3 y= -8/3


Can someone help on this?

Answers

It is d hope that helps!

Answer:

D

Step-by-step explanation:

p(x, y) reflection on y axis = p'(-x, y)

NO LINKS....................What is 60% of 80

Answers

Answer:

48

Step-by-step explanation:

80 x 0.6 = 48

What model represents the expression

Answers

Answer:

A

Step-by-step explanation:

short cut, it has 5 dashes/ point markings

what percent does housing take up in this family budget of four
a.50%
b.18%
c.31%
d.45%

Answers

what percent does housing take up in this family budget of four ( a.50%

3. A company is designing a juice box. The box is in the shape of a
rectangular prism. The base of the box is 6 inches by 2 inches and
the box is 4 inches high tice fills 90% of the box volume find the
volume of juice in the box

Answers

Answer:

48in^2 or just 48 dont forget to include the inches and squared

Step-by-step explanation:

I WILL GIVE BRAINLIEST!!!!!!! A video game developer wants to know how long it takes people to finish playing their new game. They surveyed a random sample of 13 players and asked how long it took them (in minutes). 1.235 952 457 1,486 1,486 | 1,759 1,148 548 1,0371,864 | 1,245 866 1,431 a. Estimate the median time it will take all players to finish this game. minutes b. Find the interquartile range for this sample minutes​

Answers

Answer:

a)  median = 1,148 minutes

b)  IQR = 549.5

Step-by-step explanation:

Q1 = (952 + 866) / 2 = 909

Q3 = (1431 + 1486) / 2 = 1458.5

IQR = 1458.5 - 909.0 = 549.5

Find the length of the third side. If necessary, round to the nearest tenth.
20
25

Answers

Answer:

15

Step-by-step explanation:

hypotenuse (h) = 25

perpendicular (p) = 20

base (b) = ?

we know by using Pythagoras theorem we get

b = √h² - p²

  = √25² - 20²

  = √225

  = 15

Which number is farthest from 0

Answers

Answer:

17

Step-by-step explanation:

it 17 trust me

Answer:

17

Step-by-step explanation:

Write the numbers least to greatest.

-15, 0, 9, 10, 17

Then, highlight the one on the very right.

-15, 0, 9, 10, 17

Have a wonderful day! :)

The amount of attendance at a dinner must go from being 57 people to 65 people. What is the percent of change

Answers

Answer:

4%

Step-by-step explanation:

Answer this question to get marked as brainliest!!!!

Answers

Answer:

1/8

Step-by-step explanation:

2^-3

1/2^3

1/8

1/8

[tex] \mathtt \green{Hope \: it \: helps \: uh }[/tex]

PLEASE HELP WILL MARK BRAINLIESTTTT

Answers

Answer:

470 [tex]cm^{3}[/tex]

Step-by-step explanation:

8x9x10 = 720

5x5x10 = 250

720-420 = 470

Solve for X and Find AC

Answers

X=3
AC=14
Method below

Write the equation in standard form for the circle with radius 4 centered at the origin

Answers

Answer:

common form to write the equation of a circle in is the center-radius form. The center-radius form is: (x−h)2+(y−k)2=r2 Here, the center point is denoted by (h,k) and r is the radius of the circle. The first example he does is: Find the center and radius of the circle given by the equation (x−2)2+(y+4)2=25.

Answer:

x² + y² = 16

Step-by-step explanation:

We need to write the standard equation of circle with , centre (0,0) and radius 4 unit . The Standard equation of the circle ⭕ is ,

=> ( x - h)² + (y -k)² = r²

=> ( x -0)² + (y-0)² = 4²

=> x² + y² = 16 .

• Hence the equation of the circle is x² + y² = 16.

i need help with this please

Answers

Answer:

650 cm²

Step-by-step explanation:

Use the formula 2(lw+wh+lh)

Plug in the stuff: 2(5*9+9*20+5*20)=2(45+180+100)=2(325)=650 cm²

And there you go!

Please mark brainliest!

Factor the expression:
12x - 60

Answers

Answer: 12(x-5)

Step-by-step explanation:

Which expression is equivalent to 2-2 x 22?

Answers

Answer:

-42

Step-by-step explanation:

Following Order of Operations, we have to multiply before subtracting, so

[tex]2-2*22[/tex]

[tex]=2-44[/tex]

[tex]=-42[/tex]

Using order of operations, we get -42.

Round your answer to the nearest hundredth

Answers

Answer:

2.30

Step-by-step explanation:

sin=opposite/hypotenuse

sin50=BC/3

BC=3sin50

BC=2.298≈2.30

The frequency of a radio wave varies inversely as its wavelength. If a 250-meter wave has a
frequency of 1,200 kilohertz, what is the wavelength of a wave that has a frequency of 6,000
kilohertz? Round your answer to the nearest meter

Answers

Answer:

50 m

Step-by-step explanation:

The box plot below represents some data set. What percentage of the data values are between 20 and 55?​

Answers

Step-by-step explanation:

the solution is self explanatory

Find the missing angle in this triangle

Answers

Answer: The 2nd one

Step-by-step explanation:

Sabrina babysits for young kids in her neighborhood. Last Friday night, she babysat one child for 2 hours and made $16. Tonight, she babysat one child for 6.5 hours and made $34. Determine and interpret the rate of change and initial value.

Answers

It increased by 95%?

My teacher made up the name big kahuna to make it easier to mesmerize the name but I’m not sure what the identity of this Pythagorean is. It relates to trig proofs.

Answers

Answer:

The Pythagorean Theorem leads to a simple proof of the Pythagorean Identity using only the basic definitions of trig functions. The Pythagorean Theorem on a right triangle with legs a,b and hypotenuse c gives us: a2+b2=c2. Dividing through by c2 gives: (ac)2+(bc)2=1.

Answer:

Pretty sure your teacher means sin²x+cos²x=1

Step-by-step explanation:

There's the Pythagorean identity sin²x+cos²x=1 if that's what you mean

Ben needs to read 450 pages of his book for school. If he has five days to finish, how many pages should he read each day?

Answers

Answer: 90

Step-by-step explanation:

450/5 or 450 divided by 5

you can work this out by figuring out 45/5 which is 9

so 450/5 equals 90

he should read 90 pages per day

Answer:

90

Step-by-step explanation:

Because if you divide the pages into the 5 day it would be 90

450 divide by 5 = 90

HELP!!! THIS IS DUE TODAY! I WILL MARK BRAINLIEST

A card is drawn from a standard deck of cards. What is the probability
that a spade is drawn, then replaced, and a red card is drawn second?

A card is drawn from a standard deck of cards. What is the probability that a spade is drawn, NOT replaced, and another spade is drawn?

Answers

Answer:

With replacement

[tex]probability \ of \ spade = \frac{13}{52} = \frac{1}{4} \\\\ probability \ of red\ card = \frac{26}{52} =\frac{1}{2}[/tex]

[tex]probability \ of \ spade \ then \ red\ card\ without\ replacement =[/tex][tex]\frac{1}{4} \times \frac{1}{2} = \frac{1}{8}[/tex]

Without replacement

[tex]probability \ of\ spade = \frac{13}{52} = \frac{1}{4} \\\\probability \ of \ spade\ again =\frac{12}{51} = \frac{4}{17}[/tex]

[tex]probability \ of \ spade \ then \ red\ card\ without\ replacement = \frac{1}{4} \times\frac{4}{17} =\frac{1}{17}[/tex]

Solve plz
500 - 2.23

Answers

Answer:

497.8

Step-by-step explanation:

500-2.23=497.77=497.8

Answer:

500-2.23500-2.23497.77

hope it helps

stay safe healthy and happy.

Do the following lengths form a right triangle? Show your work.
12
5
13
Please answer quick

Answers

Answer:

yes

Step-by-step explanation:

side 5 and side 12 where the angle is you can form a square in the corner

Please help. I will mark brainliest if I can. ASAP I need help.​

Answers

Answer:

y= -x+5

Step-by-step explanation:

you can decide whether or not to put a 1 in front of the x, but i don't think it's necessary

i hope this helps :)

Can someone help me with this? Right answer gets brainliest!! :)

Answers

Answer:

7 times (*) 8

Step-by-step explanation:

Product in this case means multiplication

56 is the correct answer

James has decided to start saving for a cruise over the summer. His money is
currently in the local bank, modeled by the function s(x) = 102. He is able to do work
around the neighborhood to earn extra money and that function would be a(x) = 8
+ 2), where x is measured in hours. Explain to James how he can create a function
that combines the two, and describe any simplification that can be done.
EXPLAIN IN COMPLETE SENTENCES

Answers

Answer:

f(x)=8x +118

Step-by-step explanation:

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