Mathematics High School

solve the systems of equations
y=x²-6
y=-2x+9

Answers

Answer 1

Answer:

(x1 , y1) = (-5 , 19)(x2 , y2) = (3 , 3)

Related Questions

Which compound inequality is represented by the graph​

Answers

Answer:

-2 < x < = 4

Step-by-step explanation:

Cause the dot at -2 isn't full, means that it's not equal to it.

The opposite thing happens at 4

The soccer team is selling bags of popcorn for $3 each and cups of lemonade for $2 each. To make a profit, they must collect a total of more than $120. Write an inequality to represent the number of bags of popcorn sold, p, and the number of cups of lemonade sold, c, in order to make a profit.

Answers

Answer:

3p +2c greater than 120. 120∠ 2c + 3p

Hope this helps.

An inequality to represent the number of bags of popcorn sold, p, and the number of cups of lemonade sold, c, in order to make a profit is [tex]3p + 2c > 120[/tex].

Let the number of bags of popcorn sold be p.Let the number of cups of lemonade sold be c.

Given the following data:

Price of a bag of popcorn = $3Price of a bag of lemonade = $2

To write an inequality to represent the number of bags of popcorn sold, p, and the number of cups of lemonade sold, c, in order to make a profit:

In order for the soccer team to make profit, the sum of the total cost of goods sold must be greater than $120.

Therefore, the mathematical expression is represented as follows:

[tex]3p + 2c > 120[/tex]

Find more information: https://brainly.com/question/3600420

Patricia made a 50% on her science tests. If she got 14 problems correct, how many questions
were on the tests?

Answers

Answer:

28

Step-by-step explanation:

14*2=28

Answer:

28 total questions on the science test

Step-by-step explanation:

14 times 2 to get 28 bc if she got 50%, she got half of the questions right

12.4 x -1.35
A. 1.674
B. -16.74
C. -1.674
D. 16.74

Answers

It Would Be 16.74

Calculate the cross product of two given vectors.

Use determinants to calculate a cross product.

Find a vector orthogonal to two given vectors.

Determine areas and volumes by using the cross product.

Calculate the torque of a given force and position vector

Please help I will mark brainliest ITS DUE IN A FEW MINUTES PLS

Answers

Answer:

All real numbers except 0

Step-by-step explanation:

0 is the only number that's going to make it undefined (btw if you mark brainliest it would be appreciated :) ).

Whitne bought 10 bagels for brunch last Sunday. 8 of the bagels had raisins. What fraction of the bagels had raisins?

Answers

Answer:

8/10 bagels had raisins :)

The weight of meteorite A is 5 times the weight of meteorite B. If the sum of their weights is 138
tons, find the weight of each. (Submit all work for full credit).
Please I need help

Answers

Answer:meteorite A: 115

meteorite B : 23

Step-by-step explanation: this should be not too hard to understand. but there are 6 equal parts of 138. 5 of those are occupied by the bigger number, 115, which is 5 times as large as 23. also shown as a=5b=115. hope it helps

Find m∠4 if m∠1 = 100°

Answers

Answer:

obtuse angle

Step-by-step explanation:

plz use the image below

Answers

Part (i)

Answer:  m/n

--------------------

Explanation:

You divide the total bill over the number of people at the dinner. This leads to the quotient and the amount each person pays (each person pays the same amount).

====================================================

Part (ii)

Answer:  80 dollars

--------------------

Explanation:

Plug in m = 400 and n = 5 to get

m/n = 400/5 = 80

====================================================

Part (iii)

Answer:  m = 7x

--------------------

Explanation:

x = m/n

x = m/7

7x = m ... multiply both sides by 7

m = 7x

The total bill is 7 times of what each person paid.

====================================================

Part (iv)

Answer:  7 people

--------------------

Explanation:

x = 20 is the amount each person paid

m = 140 is the total bill

n = number of people who went to dinner

x = m/n

20 = 140/n

20n = 140 ..... multiply both sides by n

n = 140/20 ..... divide both sides by 20

n = 7

Seven friends went to do dinner, splitting a $140 bill, paying $20 each

Answer:

m/n; $80; 7*x; 7 friends

Step-by-step explanation:

(I) $x=$m/n

(II) $x=400/5=$80

(III) $m=7*x

(IV) n=140/20=7

Beach balls are very popular at
Sam's Swim Shop. He decides
to begin charging 40% more.
If he originally charged $5.50,
then how much will Sam charge
now?

Answers

Answer:

$10 i think

Step-by-step explanation:

i think the answer is 10, but i’m not quate sure.

Given the following function, find f(-2), f(0), and f(4).
f(x) = x² +1

f(-2)=
f(0)=
f(4)=

Answers

Answer:

5, 0, 17

Step-by-step explanation:

f(-2)=4+1=5

f(0)=0+1=1

f(4)=16+1=17

Answer:

2,3,-1

Step-by-step explanation:

Divide. 3/5 divided by 4

Answers

Answer:

3/20

Step-by-step explanation:

-

Answer:

0.15

Step-by-step explanation:

25. a(b)(-c), for a = 7, b = -2, c = 15​

Answers

Answer:

210

Step-by-step explanation:

a(b)(-c) (PLUG IN THE NUMBERS)

7(-2)(-15) (multiply 7*-2)

-14(-15) (multiply them together two negatives make a positive)

210

Answer:

210

Step-by-step explanation:

plug in what ya know, and it is 7(-2)(15)

7(-2)=-14 and -14(15)=210

Lisa paid $48.25 for 16.7 gallons of gasoline. What was the cost per gallon, rounded to the nearest
hundredth?
Rounded to the nearest hundredth, the cost per gallon was

PLS HELP IM DOING A HOMEWORK AND IM STRESSED

Answers

$2.89 Just do the cost divided by the gallons and round up.

What is the image point of (0, - 7) after a translation right 3 units and up 4 units?

Answers

Answer:

Hi there

Your answer is

( 3,8 )

Step-by-step explanation:

3 units right means to add 3

4 units up means to add 4

(0+3, 4+4)

Answer:

(3,-3)

Step-by-step explanation:

you first add 3 to zero as your are going right on the x scale. then you subtract 4 since you are going up on the y scale.

Solve the system by substitution.
y = -5x
y = -7x – 14
Submit Answer

Answers

Answer: (-7 , 25)

Step-by-step explanation: I graphed and that’s the point I got.

explain how to evaluate an algebraic expression?

Answers

Answer:

to solve, really, you just combine like terms and follow the formula

Step-by-step explanation:

for example:

y2-y1=m(x-x1)

y-3=4(x-5)

y-3=4x-20

y=4x-23

I really need help with this question GIVE BRAINLEST PLEASE

Answers

Answer:

-30x 6 = -9 -3x=

x = 3/13

Help
i need help
thanks

Answers

D:23 because 23 minus 5 equals 18

Answer:

D

Step-by-step explanation:

23-5=18

help me solve:
-15x + 4 ≤ 34 AND -6x + 70 > -2​

Answers

Answer:

  -2 ≤ x < 12

Step-by-step explanation:

-15x +4 ≤ 34

Add 15x-34 to both sides

  -30 ≤ 15x

Divide by 15

  -2 ≤ x

__

-6x +70 > -2

Add 6x +2 to both sides

  72 > 6x

Divide by 6

  12 > x

__

The two solution spaces overlap. Since the AND of the two inequalities is involved, the solution of both is just that part of the number line where there is overlap.

The solution is ...

  -2 ≤ x < 12

Please help everyone, i need help on this really badly.

Solve the system of equations using the substitution method.
{y=2 2x+y=8

Answers

Answer: x=3

Explanation:

Substitute y with 2, so it would look like this:
2x+(2)=8

Then, subtract 2 (as it is by itself) from 8, which is on the other side, and it’ll look like this:
2x=6

Divide by 2 from both sides to isolate the variable, and you should get your answer:
x=3

I NEED HELP, WILL GIVE BRAINLIEST TO CORRECT ANSWER!

Polygon FLAME has coordinates (−6,2), (−3,4), (5,1), (1, −4), and (−2, −5). What is the perimeter of Polygon FLAME? Approximate all calculated values to the tenths place.

Answers

Step-by-step explanation:

the answer it gave me is 29.8.

PLEASE HURRY WILL GIVE BRAINLIEST.
Find the quotient:
-37.44/4.8

Answers

Answer:

1.) -7.8

2.) −37.44  ≈  −40

3.) 4.8  ≈  5

4.) -7.6

Step-by-step explanation:

1.) Divide  −

37.44  by  4.8. It equals -7.8

2.) Estimate. It is −37.44  ≈  −40

3.)Estimate. 4.8  ≈  5

4.) -7.6

What is the reciprocal of 4/9​

Answers

Answer:

9/4

Step-by-step explanation:

Take the fraction and flip it

4/9

The reciprocal is 9/4

Answer:

9/4

Step-by-step explanation:

A reciprocal is just the inverse of the number. Just flip it over.

4/9 flipped over is 9/4.

Hope this helped:)

PLEASE HELP FAST... WILL MARK AS BRAINLIEST IF GIVEN GOOD ANSWER ​

Answers

Answer:

That it is 180 degrees

Step-by-step explanation:

Answer:

CP=CP

CP is perpendicular to AB

Step-by-step explanation:

What are the answer choices?

help me please and please respond

Answers

Answer:

its eather A or B more likely A

Step-by-step explanation:

plz give brainliest

Sally consumed 2.5 gallons of water in one day. How many milliliters are equal to 2.5 gallons, if 1 liter = 1,000 milliliters and 1 gallon = 3.785 liters?ial factor that led to the Neolithic Revolution?

Answers

Answer:

I am sorry I am stuck on this one too I need help on this has well

Step-by-step explanation:

17 = − 13 − 8 x

Show your steps Please :3

Answers

Answer:

x = 3.75 or [tex]3\frac{3}{4}[/tex]

Step-by-step explanation:

17 = -13 - 8x

add 13 to both sides

17 + 13 = -13 + 13 + 8x

30 = 8x

divide both sides by 8

30/8 = 8x /8

3.75 = x

Add 13 on both sides to get the x and it’s coefficient together. Now it is 30 = -8x. Divide both sides by negative 8 and X is equal to 3.75.

Solve the equation for the given variable. *
4z + 7 = 31

Answers

Given:-

Step-by-step explanation:

4z+7= 31

4z= 31-7

4Z= 24

Z= 24/4( dividing by 2)

z = 6/1

PLEASE HELP IF YOU CANNN

Answers

Answer:

x=9

Step-by-step explanation:

First, midpoint means “the middle” so that mean that segment AB is half of AC. You can make an equation: 5x+18=4.5+6.5x. After that, you have to move the numbers on one side and the variables on the other.

You then come up with 13.5=1.5x

Divide both of them by 1.5 and then you get x=9

Answer:

X=9

Step-by-step explanation:

Okay first Hello! :)

so, B is the mid point of the segment midpoint means the half way

so, if AB= 5x+18 is the half to get the whole you would need to times it by 2

you get 10x+36

so now you equal them together

10x+36= 13x +9

Always move your smaller x, and now you got

3x+9=36

move your 9 over and switch the sign you get

3x=27

divide by three and you get

X=9

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