Hurry I'm timed hurryryeye

Hurry I'm Timed Hurryryeye

Answers

Answer 1

Answer:

It is 171

Step-by-step explanation:

[tex] {x}^{2} - 3y + x[/tex]

substitute for x and y:

[tex] = {(14)}^{2} - 3(13) + 14 \\ = 196 - 39 + 14 \\ = 171[/tex]

Answer 2

Answer:

[tex]14^{2} -3(13)+14[/tex]

196-3x13+14

196-39+14

157+14

171

Step-by-step explanation:


Related Questions

Solve for p.

8 − 4(2p − 2) = 7 + p + 9

p =

Answers

Answer:

p = 0

Step-by-step explanation:

[tex]8 - 4(2p - 2) = 7 + p + 9[/tex]

➡️ [tex]8 - 8p + 8 = 16 + p[/tex]

➡️ [tex]16 - 8p = 16 + p[/tex]

➡️ [tex] - 8p = p[/tex]

➡️ [tex] - 8p - p = 0[/tex]

➡️ [tex] - 9p = 0[/tex]

➡️ [tex]p = 0[/tex]

I need help with 18-27

Answers

Answer:

18-27= 01

Step-by-step explanation:

18

-27

---------

01

the one cancels out

plz help. show work too

Answers

Answer:

56mm²

Step-by-step explanation:

i will appreciate if u give brainliests, thanks

Erik bought a mattress that was marked down 70% from an original price of $500. If the sales tax in Oak Grove is 8%, what was the total cost of the mattress?​

Answers

Answer:

Btw the result are this: 70% = 0.7500 = 0.78% = 0.08 In Oak Grove

Step-by-step explanation:

The total cost of the mattress is $162 after markdown 70%  and sales tax 8%

Given :

Erik bought a mattress that was marked down 70% from an original price of $500

Original price is 500 dollars

marked down that is discount percentage is 70%

Lets find the discount amount using original price

markdown percentage times original price

[tex]discount = \frac{70}{100} \cdot 500=350[/tex]

cost of mattress after discount is 500-350= 150 dollars

sales tax is 8%

now we find the tax amount for 150 dollars

[tex]tax=150 \cdot \frac{8}{100} \\tax = 12[/tex]

tax is 12 dollars

the total cost of the mattress= cost of mattress +tax

the total cost of the mattress=150+12=162

the total cost of the mattress is $162

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please help i don’t really understand.

Answers

Answer:

It shows that RT and PQ are the same because the are at one point and they are vertically opposite angles

Which expression has the same value as -5, + (-4)?
Submit Answer
0 -5 8 3 - 4 2 3
O 4; -(-5%)
O 5+(-4)
O-52-(-41)

Answers

First row, the answer on the left , -5 3/4 - 4 2/3

20. Your friend says the absolute value equation |2x + 9 + 7 = 3 has two solutions
because the constant on the right side of the equation is positive. Is your friend
correct? Explain.

Answers

This is an absolute value problem. In mathematics, absolute value is simply defined as the distance of a number from zero on the number line, irrespective of the direction on either side of zero.

In the absolute value given which is; |2x + 9| = -4, we can see that there is an absolute value when the right hand side is negative and not when it is only positive.

Thus, the friend is not correct.

We are given the equation;

|2x + 9| + 7 = 3

Now when dealing with absolute values, it means that the solution is either positive or negative.

For example;

|x| = 5 means that x = +5 or -5

Thus in this question, let us first of all simplify the equation to get;

|2x + 9| = 3 - 7

|2x + 9| = -4

From |2x + 9| = -4, we can see that there is an absolute value when the right hand side is negative and not when it is only positive.

Thus, the friend is not correct.

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Arrange 7/ 10 , 3/5 , 17/ 20 , 11/ 15 in descending order​

Answers

Answer:

17/20 , 11/15 , 7/10 , 3/5

Evaluate the equation.

193b = 212.3
A. b = 40,973.9
B. b = 40,873.9
C. b = 1.1
D. b = 0.9

Answers

Answer:

C

Step-by-step explanation:

193b=212.3

193b/193=212.3/193

(divide by 193 to get the value of b)

193 cancels 193

b= 1.098445596

(round off to one decimal place)

b=1.1

Hope its helps ❤️

The answer is the third one(C)

hcf of x^2 - y^2 + 4y - 4​

Answers

Answer:

[tex](x - y + 2) \times (x + y - 2)[/tex]

Step-by-step explanation:

[tex] {x}^{2} - {y}^{2} + 4y - 4[/tex]

➡️ [tex] {x}^{2} - ( {y}^{2} - 4y + 4)[/tex]

➡️ [tex] {x}^{2} - (y - 2 {)}^{2} [/tex]

➡️ [tex](x - (y - 2)) \times (x + (y - 2))[/tex]

➡️ [tex](x - y + 2) \times (x + y - 2)[/tex]

School for Jan started at 9.00 a.m. and finishes at 3.00 p.m. If Jan knew she was 2∕3
of the way through the school day, what time was it then? Put in either am or pm

Answers

Answer:

it's 1 pm

you have to count the hours between 9 am and 3 pm = 6 then you divide 6 by 3 = 2 then 2*2= 4


The diameter of a regulation soccer ball is about 85 inches. This number was graphed on a number line.
g the graph of the diameter of the ball?

Answers

Answer:

Point D

8 3/5 = 40+3= 43

43÷5 = 8,6

........

I need help pleaseeeess

Answers

4 bc it’s the same as the other 4

Together, Sala and Terry saved $10.00. Sala. saved D dollars. Write an expression for the amount Terry saved.​

Answers

Let Terry Saved be T dollars .

The Expression will be

[tex]\\ \rm\longmapsto Sala+Terry=\$10.00[/tex]

[tex]\\ \rm\longmapsto D+T=\$10.00[/tex]

Answer:

T = 10 - S

Step-by-step explanation:

The only useful information is that  they saved $10 together. We are just going to add the money Sala and Terry saved to equal 10.

S + T = 10

They want an expression for how much Terry saved so we can solve for T.

T = 10 - S

Best of Luck!

if (x+30°) and (180°-2x) are vertically opposite angles . Find the value of x .​

Answers

Answer:

50

Step-by-step explanation:

x + 30 = 180 - 2x   [vertically opposite angles]

x = 180 - 30 - 2x

x = 150 - 2x

x + 2x = 150

3x = 150

x = 150/3

x = 50

Use the substitution method to solve the system of equations. Choose the correct ordered pair. y=6x-4 y=7x-7 A. (4, 18) B. (5, 9) C. (3, 14) D. (2, 11)

Answers

Answer:

C (3,14)

Step-by-step explanation:

y=6x-4

y=7x-7

6x-4=7x-7

-x=-3

x=3

y=6*3-4=14

Find FH? this is 10th-grade geometry

Answers

Answer:

7

plss mark me brainlestt

Step-by-step explanation:

22-15=7

A line segment is also a line but a line with finite length and fixed endpoints. The length of the line segment FH is 7 units.

What are a line and line segment?

A line is a one-dimensional shape that is straight, has no thickness, and extends in both directions indefinitely.

A line segment is also a line but a line with finite length and fixed endpoints.

Given that the length of the line segment HG is 15 units and the length of line segment FG is 22 units.

Since the line segment, FG is made from FH and HG. Therefore, we can write,

FG = FH + HG

22 units = FH + 15 units

FH = 22 units - 15 units

FH = 7 units

Hence, the length of the line segment FH is 7 units.

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|x|-5 what does the vertical bar means?​

Answers

Answer:

it means absolute valuen so anything inside becomes a positve.

Step-by-step explanation:

How to do this? Please help

Answers

Step-by-step explanation:

This equations are quadratic equations, which is on standard form,

[tex] {ax}^{2} + bx + c[/tex]

where a is the leading coefficient, b is the second coefficient, and c is the constant.

Both a and b are in quadratic equation so we need to find the constant separately.

Both sides are equal to zero so we can just subtract the terms not containing a or b in them to the opposite side.

[tex] {x}^{2} - 4 x + a = 0[/tex]

[tex] {x}^{2} + a = 4x[/tex]

[tex]a = - {x}^{2} + 4x[/tex]

For b,

[tex]2 {x}^{2} - 6x + b + 7 = 0[/tex]

[tex] - 6x + b + 7 = - 2 {x}^{2} [/tex]

[tex]b + 7 = - 2 {x}^{2} + 6x[/tex]

[tex]b = - 2 {x}^{2} + 6x - 7[/tex]

at 1pm the level of water in the pool was 8 feet at 4pm the level of water was 2 feet find the constant rate of change of the water.​

Answers

Answer:

2 feet

Step-by-step explanation:

1 pm = 8ft                  

    2pm = 6ft         The rate of change is 2

    3pm = 4ft

4pm = 2ft

7−2t≤21 write the solution in

Answers

Answer:

t≥-7

Step-by-step explanation:

7−2t≤21

Subtract 7 from each side

7-7−2t≤21-7

−2t≤14

Divide each side by -2, remember to flip the inequality

-2t/-2 ≥14/-2

t≥-7

Please help I only have 15 minutes to complete this last one

Answers

Answer:

the slope of MN= -5-1/3-(-6)=-2/3

two lines are parallel>> slopes are equal

equation of line = (y-y'=m(x-x'))

therefore, y-1= -2/3(x-6)

y-1 = -2/3x + 4

y+2/3x=5

what is the value 36x-8y to the second power when x=3 and y= -6?

Answers

Answer:

If they do , then the values of y yo does not satisfy R ' = 0 , : ' y is ... be an equation of the second degree , - R ' = ( - 3 y ' + 8y - 5y ) x + 2y + + ...

https://www.algebra.com › tutors

Recent problems solved by 'mrduffner' - See tutors' answers!

3. Again combine. +3x+%2B+8=+-x+-+8+ 4. Isolate the variable. +2x+=+-16+ 5. Divide & solve. x+=+-8 ... Y to the second power is just that, y%5E2 .

IT IS ONE

answer is :
When x = 3 and y = -6, the value of 36x - 8y2 is -180

i am not sure but i think its correct

Petra invests $10,800. After 4 years she has earned $3240 in interest.
At what annual rate of interest did she invest her money?

Answers

Answer:

Rate =interest*100/principal*time

Rate = 7.5%

Step-by-step explanation:

At 7.5 % annual rate of interest did she invest her money.

What is rate of interest?

The percentage usually on an annual basis that is paid by the borrower to the lender for a loan of money is called rate of interest.

Given

Principal P = $10800

Time t = 4 years

I = 3240

Interest = [tex]\frac{P\times r \times t}{100}[/tex]

[tex]3240 = \frac{10800\times r \times 4}{100}[/tex]

[tex]r= \frac{3240\times 100}{10800\times 4}[/tex]

r = 7.5 %

At 7.5 % annual rate of interest did she invest her money.

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What is the solution to the equation 1/4x - 1/8 = 7/8 + 1/2x ?
A. x = -5
B. x = -4
C. x = 4
D. x = 5​

Answers

Hey there! I'm happy to help!

We want to get all of the variables on the left side and all of the numbers on the right side. This will allow our variable to be isolated so we can see what it is equal to.

1/4x - 1/8 = 7/8 + 1/2x

We add 1/8 to both sides.

1/4x=1+1/2x

We subtract 1/2x from both sides.

-1/4x=1

We divide both sides by -1/4 (same thing as multiplying -4).

B. x=-4

Have a wonderful day and keep on learning! :D

Finding number of x
X+7=3

Answers

Answer:

x=3-7

x=-4

this was your answer

Answer:

x = -4

Step-by-step explanation:

Use inverse operations to solve the given equation,

x + 7 = 3

(Subtract (7) from both sides,

x + 7 - 7 = 3 - 7

Simplify,

x = -4

CAN SOMEONE HELP ME PLEASE

Answers

Answer:

2) 18

3) x = 17.5, LN = 105

Step-by-step explanation:

2) 6 + 12 = 18

3) 6x = 4x + 8 + 27

2x = 35

x = 17.5

6x = 6(17.5) = 105

raise the quotient of y and 5 to the 2nd power

Answers

Answer:

I'm guessing y is numerator and 5 is denominator. so y^2/25

Step-by-step explanation:

so if you have the fraction y/5 and you need to square it or raise to the second power you get (y/5)^2. now using the properties of exponents when you get a fraction and need to raise it to a power you square the denominator and numerator which gets you y^2/25. now let's check if it works we can use 5 for y so (5/5)^2 is equal to 25/25 = 1. or (10/5)^2 which is 2^2 = 4. or 100/25 which is 4. so the equation works for the expression.

can someone help me please?

Answers

Answer:

Its 15

Step-by-step explanation:

a^15 / a^3

= a^15-3

= a^12

Use law of indices.

Please help me with this question

Answers

Answer:

-15c

Step-by-step explanation:

I'm sorry for not being able to explain but im sure that ma answer is correct.

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