What is the value of the expression below when x=10x=10 and y=4y=4? 8x-7y 8x−7y

Answers

Answer 1

Answer:

X=10x =10

means here value of X is 1

y = 4y = 4

means here value of y is also 1

now substitute the values of X and y in the equation

8×1-7×1×(8×1-7×1)

8-7(8-7)

64-49

15


Related Questions

PLEASE HELP !! THANK YOU AND ILL GIVE 10 POINTS PLUS BRAINLIEST !! CORRECT ANSWERS ONLY PLEASE !!

Answers

It is D. 53.

The step by step is in the picture! :)

Can u guys PLEASE ANSWER THIS QUESTION ASAP URGENTLY

Find the equation of the parabola in general form

Answers

Answer:

x^2-4x+3

Step-by-step explanation:

Since the zeroes of the quadratic are 1 and 3, we can set up an equation in factored form:

(x-1)(x-3)

=x^2-4x+3

We can further check that this is the right answer by evaluating it at the vertex:

(2)^2-4*2+3=-1

Since that corresponds to the graph, the answer is x^2-4x+3

which is greater? 2/3 or 3/4?​

Answers

Answer:

3/4

Step-by-step explanation:

When finding common denominators the answer would be 3/4.

Answer:

2/3 is not greater than 3/4

Step-by-step explanation:

In a survey of 2,000 people who owned a certain type of​ car, 900 said they would buy that type of car again. What percent of the people surveyed were satisfied with the​ car?

Answers

Answer:

45%

Step-by-step explanation:

900/2,000 = 45

Cada semana de los últimos 3 años Lucía ha hecho 120 km en bicicleta y cada mes 100 km corriendo y 15 km nadando. Debe cambiar la bicicleta cada 20.000 km. ¿Tiene que cambiarla ya?

Answers

Answer:

Lucía no tiene que cambiar ya la bicicleta porque ha recorrido 18,720 km.

Step-by-step explanation:

Para determinar la respuesta tienes que encontrar la cantidad de km que Lucía ha hecho en 3 años multiplicando los 120 km que hace a la semana por la cantidad de semanas que hay en 3 años. Para determinar las semanas, tienes que considerar que en 1 año hay 52 semanas:

Semanas=52*3= 156 semanas

120*156=18,720 km

De acuerdo a esto, la respuesta es que Lucía no tiene que cambiar ya la bicicleta porque ha recorrido 18,720 km.

4. Which of the following does NOT represent a constant rate of change?
F. (0,0), (9,1), (18,2), (27,3)
G. (0,0), (2,10), (5,13), (11,19)
H. (0,0), (3,2), (9,6), (15,10)
J. (0.0), (4,10), (8,20), (12.30)

Answers

Answer:

G

Step-by-step explanation:

The answer choice is G.

sea ice is frozen ocean water, which frezzes at a temperture of about -1.8 degress celsius. what i the temperture in fahrenheit use the formula F=(c) (9/5)+32

Answers

Answer:

wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww

Step-by-step explanation:

Write a fraction, a decimal and a percent for: one-sixth

Answers

Answer:

fraction:1/6  decimal:0.166666 repeated    percent:16.6 repeated

Step-by-step explanation:

Answer:

1/6,0.16,16.60

Step-by-step explanation: please mark me brainlist

Find the line of reflection if the image of (-5,-2) is each of the following?

Answers

Answer:

the reflection would be (5,2)

Step-by-step explanation:

the answer isssssssssss 5,2

-2c+y c=-2 and y=5 ​

Answers

Answer: 9

Step-by-step explanation: All you have to do is plug in the numbers for the variable they give you. :)

Answer:

Step-by-step explanation:

Given c= -2. & y=5

-2c+y=. -2x-2+5=4+5= 9 is the answer

Select the correct answer.
Which pair of statements correctly compares the two data sets?

А.The difference of the means is 1. This value is less than half of the mean absolute deviation of either data set.

B.The difference of the means is 1. This value is more than half of the mean absolute deviation of either data set.

C. The difference of the means is 1. This value is 1 times the mean absolute deviation of either data set.

D. The difference of the means is 1. This value is 2 times the mean absolute deviation of either data set.

Answers

Answer: B?

Step-by-step explanation:

Answer:

Go for B

Step-by-step explanation:

Solve the system using the elimination method. - Which one should I do first
3x-4y+z=-5
6x-4y+z=1
x+y+z=6

Answers

Answer:

first equation and second equation

Step-by-step explanation:

it is more easier because both of them have the same y

Answer:

Use equation (1) and equation(2) and eliminate 4y+z

Step-by-step explanation:

3x-4y+z=-5     ...(1)

6x-4y+z=1        ...(2)

x+y+z=6          ...(3)

First, you find the equation that you can use the elimination method on;

there are multiples of them.

However, I would use equation (1) and equation(2) and eliminate 4y+z :

 3x-4y+z=-5

- 6x-4y+z=1  

         -3x=-6

            x=2

As you can see, both the terms with y and z are eliminated in one step, exposing the variable x.

From here is just my advice:

There are multiple ways for you to answer this question. In math, the process may sometimes not matter if the answer was correct. Nevertheless, you should try finding one way that fits you or makes it easier to solve. I personally think that how I have been trying this helped me later when math got more complicated. (Also, it was fun for me to find another way that I was not taught of)

GOOD LUCK!! and I HOPE THIS HELPS YOU!!!!

Rotate ΔABC with vertices A(-1, 4), B(2, 1), and C(3, -3) about the origin by 90°.

What are the coordinates of A'?

Answers

You got this you can do it I don’t know the answer but I hope you find someone who does(:

The coin jar was filled with pennies and nickels in the ratio of 7 to 2. If there were 28 nickels in the jar, how many coins were there?

Answers

28/2=14
7x14=98.
98 is the answer

if a telescope originally costs $539.99 the tax rate is 10%. what is the total?

pls someone explain how to solve these type of problems plssssssssssss im not asking for a answer just explaining and possibly a example PLSS HELP ITS DUE IN 10 MINUTES ​

Answers

$539.99 x 10% = 53.999 so essentially $54

Helps me solve this problem please

Answers

Answer:

the slope is negative....

-2/5x + 3= 2/3x + 1/3

Answers

Answer:

x=2.5

Step-by-step explanation:

In this case, simplification can isolate x, so x=2.5.

A picture frame has a perimeter of 62 inches. The difference between the
length and twice the width is 1 inch. What are the length and width of the
frame?

Answers

Answer: each width = 10, each length = 21

Explanation: from the question we know that L=2w + 1 and we also know that a rectangle has the perimeter of 62 when we plug it in the equation we will get 62= 2(2w+1+w) we will multiply the 2 now and we will get 62=4w+2+2w we will combine like terms and we will minus two from both sides ending up with 60=6w we will divide six from both sides and we will get w=10 then we will use l=2w+1 to find the length and it will be 21

I need help please.
What are the answers at least for the first one. Please help.

Answers

the first box is 1
the second box is 50
the third box is 8
you’re welcome

Answer:

1. 0 weeks

2.$50 in savings

3.8 weeks

4. $90 in savings

Step-by-step explanation:

Carrie and Alex are playing hiding and seek

Answers

Answer:

Ok.

Step-by-step explanation:

What is your question?

Answer: YESS

Step-by-step explanation:

I love hide and seek

Which statement is true? ​

Answers

Answer:

B

Step-by-step explanation:

They equal the same decimal, and if you multiply 13 with each of them, you get the same fraction.

(PLEASE ANSWER!!!) The equation 6x = y is proportional. True or false?

The equation 6x + 8 = y is proportional. True or false?

Answers

Answer:

No, it is not proportional

Step-by-step explanation:

y+3=-7(x+5) in slope intercept form

Answers

Answer:

IN slope intercept form this is y=-10x-50

y+3=-7(x+5)

y=-10(x+5)

y=-10x-50

Step-by-step explanation:

Clear Mark for Review Jamal's lawn is shaped like a square with an area of 224.9 ft. Which measurement is closest to the side length of his lawn in feet?​

Answers

Answer: 15 feets

Step-by-step explanation:

Given that :

Area of square shaped lawn = 224.9 ft²

Measurement closest to side length of the lawn :

Since the length is square shaped ;

Area of square formula = a²; where a = side length of the square

Area = a²

224.9 ft² = a²

Take the square root of both sides

√224.9ft² = √a²

14.996666 ft = a

a = 14.996666 ft

a = 15 ft

Hence, the side length of the lawn is closest to 15 feets

A new amusement park has a sign posting the cost for rides.
How much would it cost for 18 rides?

Answers

Answer:

It would cost $51 for 18 rides

Step-by-step explanation:

if it costs $8.50 for 3 rides, you could easily just multiplied the price of 3 by 6 because 6 x 3 = 18 rides

And 8.5 x 6 = $51

pls help I will give you brainliest please just help

Answers

Answer:

the picture isnt there

Step-by-step explanation:

Answer:

The picture is just a black photo...

Step-by-step explanation:

Your Welcome!

Brainliest Appreciated!

Which of these expressions shows like terms?

Your answer:

3x +3y


2x +2x^2


2x+3x


2x^2 +3y^2

Please help! Need Now!

Answers

Answer:

C

Step-by-step explanation:

2x+3x Have the same variable. Therefore they both have like terms

What is the answer to the following question?
1.8
2.2
3.3
4.12
?

Answers

Answer:

1.8

Step-by-step explanation:

1.8

Raymond bought a book that cost C = 1.065x after sales tax. How could he rewrite the cost equation to emphasize the base price of the book and the amount he paid in tax? C= x + 0.065 A B. C= x + 0.065x с C=1+ 0.065 D C=1+ 0.0652​

Answers

Answer:

C

Step-by-step explanation:

What is the quotient?
-4/5 *2
HELP PLEASE

Answers

Answer:

The answer is 4/25 or 0.16.

Step-by-step explanation:

If the astrick is meant for a square root, then yes that is the answer.

The correct answer is 1.6.
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