If x^2+y^2=0, what is the value of 2x-7y?

Answers

Answer 1

Answer:

Answer will be zero , since the value of x and y are zero and any value multiply with zero will be zero only .


Related Questions

The length of a classroom is 41 feet.

What is this measurement in yards and feet?

The measurement is yd ft.

Answers

Answer:

There are 3 feet in a yard, so divide 34 by 3, which is 11 with a remainder of 1, the remainder 1 is the remaining foot, so 34 feet is 11 yards and 1 foot.

Step-by-step explanation:

(Algebra 2)

Find the inverse of f(x) and its domain.

Answers

let f(x)=y
f^-1(x)=x
y=1/(x+5) - 1
y+1=1/(x+5)
(x+5)=1/(y+1)
x=1/(y+1)-5
f^-1(x)=1/(x+1) -5

denominator cannot equals to zero
x+1≠0
x≠-1

answer
B

HELP PLS

A construction crew is lengthening a road. The road started with a length of 54 miles, and the crew is adding 2 miles to the road each day.
Let L represent the total length of the road (in miles), and let D represent the number of days the crew has worked. Write an equation relating L to D. Then use this equation to find the total length of the road after the crew has worked 39 days.

FIND EQUATION AND TOTAL LENGTH OF ROAD AFTER 39 DAYS

Answers

Answer:

L=54+2d

L=54+2*39

L=54+78

L=132

Answer:

L = 2D + 54

132 miles

Step-by-step explanation:

Starting length: 54

Additional length each day: 2

On day 0, the additional length is 0.

On day 1, the additional length is 2 × 1

On day 2, the additional length is 2 × 2

On day 3, the additional length is 2 × 3

...

On day D, the additional length is 2 × D or simply 2D.

The total length after D days is the original length plus the total amount of the daily additions.

The equation is:

L = 2D + 54

On day 39, D = 39

L = 2D + 54

L = 2 × 39 + 54

L = 78 + 54

L = 132

Answer:

L = 2D + 54

132 miles

the function of g(x) is the height of a football x seconds after it is theown in the air. The football reaches its maximum height of 30 feet in 4 seconds, and hits the ground at 10 seconds. What is the practical domain for the function f(x)?

Answers

The domain of the function will be less than or equal to 4 is x ≤ 4

Domain of a  function

The domain of a function are real values for which the function exists

For the question given, the time taken will serve as the domain of the function while the height after a particular time will be the range.

The domain depends on the time it takes to reach the maximum height. SInce the football reaches its maximum height of 30 feet in 4 seconds, hence the domain of the function will be less than or equal to 4 is x ≤ 4

Learn more on domain here: https://brainly.com/question/26098895

Which symbol would best replace the question marks below? 100 ? 88 ? 57 ? 47 ? 31 ? 16

A.=

B.<

C.>

Answers

Answer:

C

Step-by-step explanation:

Because the numbers on the left are always greater than the numbers on the right.

Pepper Jackie used a precision hydrometer to perform an experiment

Answers

Answer:

Both have about the same range of sugar,but Jim's jint uses more sugar overall.

Step-by-step explanation:

Find the point-slope equation for the line
that passes through the points (5, 19) and
(-5, -1). Use the first point in your
equation.

Answers

[tex]m=\frac{y_2-y_1}{x_2-x_1}\\ =\frac{-1-19}{-5-5} \\=\frac{-20}{-10} =2\\y-y_{1} =m(x-x_1)\\\\m=2\\(x_1, y_1)=(5, 19)\\y - 19 = 2(x - 5)\\y = 2x+9[/tex]

Akaia ran 1.5 miles every Monday, 2 miles every Tuesday, 1.75 miles every Wednesday. How many total miles did she run in 4 weeks?

Answers

Answer:

21 miles

Step-by-step explanation:

1.5+2+1.75=5.25 but since it says total miles in 4 weeks

What is the height of a cone is the volume is 718.38mi^2 and the radius is 7mi?

Answers

Answer:

14 mi

Step-by-step explanation:

V = 718.38 mi³, r = 7 mi, find h

Use V = πr²h/3

718.38 = 3.14 * 7² * h/3

718.38 = 51.287 h

h = 718.38/51.287 = 14 mi

a blue and a red dice are rolled, what is the probability of rolling an odd number on the blue and an even number on the red?

Answers

Sense there are only two outcomes available and there are only two probabilities that means if you role the dice half of the time you will roll blue and the other half you will roll red. 50/50

Find the median of the data. 3,5,7,9,11,3,8 The median is...

Answers

Answer:

Step-by-step explanation:3

,

5

,

7

,

9

,

11

,

8

,

3

Arrange the terms in ascending order.

3

,

3

,

5

,

7

,

8

,

9

,

11

The median is the middle term in the arranged data set.

7

Answer:

the median is 7.

Step-by-step explanation:

line each number up in order from least to greatest. it should look like this. 3, 3, 5, 7, 8, 9, 11

on a sheet of paper, cross of the numbers on the ends until you get to the middle.

once you have gotten to the middle you should have one number left which is 7.

because this is a uneven number there will be only one number for the median.

i hope this helped<33.

What is the correct answer 2+245=

Answers

247 is the answer to this probleM

Answer:

247

Step-by-step explanation:

2 + 245

= 002 + 245

= 247

please help me answer this asap thank you
find the value of x.

Answers

Answer:

x = 20

Step-by-step explanation:

the product of the measures of the parts of one chord is equal to the product of the measures of the parts of the other chord , that is

9x = 15 × 12 = 180 ( divide both sides by 9 )

x = 20

A restaurant serves a 16 inch pizza and a 20 inch pizza. About how many square inches is
each?

Answers

Answer:

16×16=256

20×20=400

multiply the number with its self and that's the square inches of each pizza.

1 2 3 HELPPPPPPPPPP DUE IN 1 HOUR

Answers

Answer:

<(3) >(2)

Step-by-step explanation:

Genus < Phylum

Class < Family

Kingdom < Species

Order > Classes

Phylum > Family

im not 100%

but hope this helps pls mark as brainliest.

Find the value of x. ​

Answers

Answer:

12.5

Step-by-step explanation:

In this problem, we see a 5 on one side. The other side will be 5 as they have the congruent line indicator.

The formula for these types of problems are a*b=c*d.

a = 5

b = 5

c =2

d = x

(5)(5)=2(x)

x = 25/2 = 12.5

HELP ASAP
Connor needs 60 mL of a 19% acid solution for a science experiment. He has available a 21% solution and a 15% solution.
How many milliliters of the 21% solution and how many milliliters of the 15% solution should he mix to make the 19%
solution?
Provide your answer below:
mL
21% solution:
mL
15% solution:
FEEDBACK
Content attribution
1 POINT
QUESTION 15
8 and the interest rate on the second loan was 9%.

Answers

Answer:

Let x = ml of 21% solution

Let y = ml of 15% solution

ATQ,

x + y = 60.....(1)

or

0.21x + 0.15y = 0.6....(2)

Multiplying equation 1st by 0.21, we get,

0.21y+0.21y =12.6....(3)

subtracting equation 3

0.21y+0.21y =12.6

-0.21x +0.15y = 0.6

_________________

ㅤㅤㅤ 0.6y = 12

_________________

6y = 12

y = 20ml

x= 60-20 = 40 ml

Hence , Conner needs 20ml of 21% solution & 40ml of 15% solution

prove that -

[tex] \sin {}^{2} (\theta) + \cos {}^{2} (\theta) = 1[/tex]


thankyou ~​

Answers

Explanation:

In the right triangle shown in the attachment, we have, by definition, ...

  sin(θ) = a/c

  cos(θ) = b/c

Then ...

  sin²(θ) +cos²(θ) = (a/c)² +(b/c)² = (a² +b²)/c²

By the Pythagorean theorem, ...

  c² = a² +b²

Substituting for c², we have ...

  sin²(θ) +cos²(θ) = (a² +b²)/(a² +b²)

  sin²(θ) +cos²(θ) = 1

_____

Additional comment

This trig identity also goes by the name "Pythagorean identity."

Let A = {O, 2, 4, 6, 8, 10}, B = {O, 1, 2, 3, 4, 5, 6}, and C = {4, 5, 6, 7, 8,9, 10}. Find

Answers

Answer:

Ans= {0,1,2,3,4,5,6,7,8,9,10}

Step-by-step explanation:

Union of set A, B, C

A={0,2,4,6,8,10}

B={0,1,2,3,4,5,6}

C={4,5,6,7,8,9,10}

Union={0,1,2,3,4,5,6,7,8,9,10}

A researcher decides to determine if the type of writing utensil that a student uses while doing their math affects their accuracy. A group of 1200 high school students in Algebra are randomly divided into four groups. One group uses a regular pencil, another uses a mechanical pencil, one group uses a pen and the fourth group is allowed to use whatever type of utensil they feel like. A math test is given and the results are tabulated for accuracy. The variable- type of writing utensil - is what type of variable?

Answers

Since the variable type of writing utensil assumes labels and not numbers, it is classified as qualitative.

What are qualitative and quantitative variables?Qualitative variables: Assumes labels or ranks.Quantitative variables: Assume numerical values.

In this problem, the type of writing utensil has 4 labels: regular pencil, mechanical pencil, pen, whatever.

Hence, since the variable assumes labels and not numbers, it is classified as qualitative.

More can be learned about quantitative and qualitative variables at https://brainly.com/question/20598475

does 3x-y=4 and 6x-2y=8 have a solution?

Answers

Answer:

No there is no solution

Step-by-step explanation:

X cannot be found no matter how you try to solve the simultaneous equation so therefore y can also not be found.

Simplify the following into a single logarithm: 3 log ( 6 ) − 3 log ( x )

Answers

Answer:

3 log (6/x)

Step-by-step explanation:

Rule: log(a) - log(b) = log(a/b)

3 log ( 6 ) − 3 log ( x ) = 3 log (6/x)

Evaluate the expression 4 exponent 3 + 96 divided by 8 times 5 - 42

Answers

Answer: 61

Step-by-step explanation: 1+12*5

Simplify the sum 43+(96/8)*5-42

1

Add 43 and -42

12*5

Reduce 96/8 by factoring out and cancelling common factors

8*12/8.1

Factor out 8 from the top and bottom of the fraction

8*12=96

8*1=8

96/8=12

multiply 12 and 5. 12*5= 60

add 60 and 1

so the answer is 61

what is 1/8 as a fraction decimal and percent

Answers

Divide 1/8 and you get 0.125 (decimal) and you times 0.125 to 100 (0.125 * 100 = 12.5%) and you get 12.5% (percent)

Kim wants to estimate the distance from her home to school. She times the walk as taking 15
min. What is the distance if Kim walks 1 mile in 20 min?

Answers

Answer:

0.75 miles

Step-by-step explanation:

15/20 = 3/4 = 0.75

15 is 3/4 of 20

0.75 mile  is 3/4 of 1mile

Find the value of this expression if x = 3. x ^2 -1/ x+ 1

Answers

x^2-1/x+1

3^2-1/3+1

3x3=9 -1 = 8

3+1=4

8/4=2

One of the greatest assets of a second Terry is often his/her ability on the keyboard of a computer. Miss Garcia has been recognized as the most outstanding typist at prestigious firm because of her outstanding typing speed. The table below displays data collected from her most recent evaluation.

Write an equation to represent the total number of words, Y, that Miss Garcia can type in X minutes.

if Miss Garcia maintains a constant speed consistent with the results above, how many words will she type in 49 minutes?

Answers

Answer:

Y = 70X

or

Y = 70*X

Step-by-step explanation:

The words she will type in 49 minutes will be,

70*49 ===> 3430 words

If you were to cover a pizza with cheese, how much area, rounded to the nearest whole number, would you need to cover with cheese if the pizza had a circumference of 31.4 inches?

Answers

Answer:

79 square inches

Step-by-step explanation:

First, let's find the diameter given the circumference.

[tex]C=\pi d[/tex] [tex]d=\frac{C}{\pi }[/tex] [tex]d= 31.4/3.14[/tex] [tex]d=10[/tex]

Next, we know the the radius is half the diameter, so the radius is 5 inches. Now, we can solve the area of the circle.

[tex]3.14 * 5^2[/tex] [tex]3.14 * 25[/tex] [tex]78.5[/tex] 78.5 ≈ 79 square inches

Therefore, the answer is 79 square inches.

Helpppp plaseeeee hurryyyyy Vocabulary I need the definition of these
Inverso Aditivo
Inverso Multiplicativo
Números Opuestos
Números Recíprocos
Valor Absoluto

Answers

Answer:

Inverse Additive

Inverse multiplicative

Opposite Numbers

Reciprocal Numbers

Absolute value

Step-by-step explanation:

Inverse Additive is the number that is added to a given number to make the sum zero. For example, the additive inverse of 3 would be -3, because 3 + -3 = 0.

Inverse multiplicative is defined as a number which when multiplied by the original number gives the product as 1. For example, the multiplicative inverse of 5 would be 1/5, because multiplying 1/5 by the number 5 would equal to the product of 1.

Opposite Numbers- The opposite of a number is the number on the other side of 0 number line, and the same distance from 0. Basically same thing as an additive inverse. The negative version of a positive number, and vice versa.

Reciprocal Numbers- The reciprocal of a number is this fraction flipped upside down. In other words, the reciprocal has the original fraction's bottom number—or denominator—on top and the top number—or numerator—on the bottom.

Absolute value- The absolute value (or modulus) | x | of a real number x is the non-negative value of x without regard to its sign.

The prime factorization of which number 2⁵ x 5?​

Answers

Answer:

Step-by-step explanation:

[tex]2^{5} *5 = 2 * 2* 2 * 2 * 2 *5[/tex]

         = 160

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