x^2 = 49, then x = 7. What would be a counterexample?

Answers

Answer 1
-7^2 is also 49, squares can be positive or negative

Related Questions




Abby is using the Distributive Property to find 27 x 52


Drag the correct number into each box to show her work.


Numbers may be used once, more than once, or not at all.



27 x 52 = (20 +


) x (50 +


= (20+7)x


+ (20+7)x


= (20 x 50) + (7 x 50) + (20 X 2) + (7 2)


11

Answers

Answer:

27 x 52  = ( 20 + 7 ) x ( 50 + 2 )  = 1404

Step-by-step explanation:

27 x 52

( 20 + 7 ) x ( 50 + 2 )

(20 x 50) + (20 x 2) + (7 x 50) + (7 x 2)

= 1000 + 40 + 350 + 14

= 1404  

PLEASE HELP, I WILL MARK BRANLIEST AND THANKS!!!
Draw the shape made by slicing the CUBE (THINK: A CUBE HAS 6 SIDES THAT ARE THE SAME MEASURE) parallel to its bases.

Answers

Step-by-step explanation:

hope it helps you

i think your question was this only

-2a3 - 3a2 + 4a + 6, 2a3 + 5a2 + 7
sum the expression

Answers

Answer:

2a2 + 4a + 7

Step-by-step explanation:

As, - (2a3 - 3a2 + 4a + 6) + (2a3 + 5a2 + 7)

= 2a2 + 4a + 13

A pancake mix requires 5 cups of flour for every 10 pancakes. How much flour is used per pancake?

Answers

So you have 5 cups of flour for 10 pancakes so what you want to do is just divide 10 by 5 and you get your answer of 2 :)

The formula for throwing a baseball in the air is represented by the attached function, where h represents the height of the ball in inches, and t represents time. How high is the baseball after 3 and a half seconds?
h(t)=-3t^2+12t+40

Answers

Answer:

45.25 in

Step-by-step explanation:

To solve this question you would plug 7/2 or 3.5 in for t and solve for h(t).

h(t)=-3(7/2)^2+12(7/2)+40

=-3(49/4)+(84/2)+40

=(-147/4)+42+40

=-36.75+42+40

=45.25 in

A gallon of Moo Milk costs $5.12. What is the price, in dollars, of an 8 ounce glass of Moo Milk?
There are 128 ounces in 1 gallon

Answers

Answer:

Your answer is 42

please mark me brain list

HELP!!
Uber is running a special! You pay an initial charge of $3.25 plus 1.50 per mile. Write an equation that can be used to find y, the total cost of the trip, if x represents the number of miles of the trip?

Answers

Answer:

y=1.50x+3.25

Step-by-step explanation:

if f(x)=x-5/4 and f-1(x)=25 find the value of x​

Answers

Answer:

ANSWER

g=f

−1

f(g(x))=x

Differentiate w.r.t.x

f

(g(x))⋅g

(x)=1

1+(g(x))

4

1

⋅g

(x)=1

g

(x)=1+[g(x)]

4

Can someone help with these 2 questions please? will give brainliest and 19 points (one is in picture attached)

You order candles from a website that charges $15 per candle. You
only have $65.00 to spend on candles. Your cost, in dollars, is a
function of the number of candles you order.
Which of the following statements describe the domain and range
of this function? Select TWO that apply.
O A) The domain is the set of all real numbers from 0 to 4
O B) The domain is the set of all integers from 0 to 4.
O C) The range is the set of all integers from 0 to 60.
OD) The range is the set of all multiples of 15 from 0 to 60.
OE) The range is the set of all real numbers from 0 to 60.

Can someone help with these 2 questions please? will give brainliest and 19 points

Answers

Answer:

A

Step-by-step explanation:

I think

Answer: D and B

Step-by-step explanation:

The range (answered by D) is only the multiples of 15 between 0 and 60 as it is impossible to pay an amount different than the correct inclinations of 1/15 per candy. For example, it is impossible to pay 12.345421 dollars for a candy.

A similar solution applies for the domain. Only integers(whole numbers) are valid as you cannot buy 1.2862 of a candy.

Hope this helps.

Look at the photo and you can see it

Answers

Answer:

huh wym?

you will see it?

Step-by-step explanation:

Find the solution of the system of equations.


First equation,

4x – 3y = -13

Second equation,

-x+ 6y = -44

Answers

-9 and another number (i dont have paper rn sorry)

Carson is training for a race. He ran 12.56 miles on one day and 12.98 miles the next day. How much farther did he run the second day than the first day? *

Answers

Answer:

.42 miles more

Step-by-step explanation:

12.98 minus 12.56

What is the range of the function graphed on the grid? { x │ x = -2, 2, 4} {y│-3 ≤ y ≤ 4} {y│ y = -3, 0, 4} { x │-2 ≤ x ≤ 4}

Answers

Answer:

The image is sideways.

But if your graph is like on the image, then the answer is: {y│-3 ≤ y ≤ 4}

Range is the set of y values

Least function value is -3 and greatest is 4

Answer:

{y│-3 ≤ y ≤ 4}

Step-by-step explanation:

A cleaning company charged $125 to clean a 2500 square foot house. The same company charged $146 to clean a 3200 square foot house. Write an equation in slope-interceptiom to represent the total cost, y, to clean a house with x square feet. Then, find the total cost to clean a house that is 4500 square feet.​

Answers

Answer:

The cost is y = $185

Step-by-step explanation:

Let us have points spelt out here

(2500,125) and (3200,146)

The general form of a straight line equation is;

y = mx + b

where m is slope

So to calculate the slope in this case, we have

m = (146-125)/(3200-2500)

m = 21/700 = 0.03

So we have the equation as

y = 0.03x + b

To get b, we use any of the two points

Let us use (2500,125)

So we have

125 = 0.03(2500) + b

125 = 75 + b

b = 125-75

b = 50

So the complete equation of the line is;

y = 0.03x + 50

So here, we want to find the cost of a house with 4500 square feet

simply substitute 4,500 for x

y = 0.03(4500) + 50

y = 135 + 50

y = $185

Does this table show a proportional relationship? If so, what is the constant of proportionality.

Answers

Answer:

yes as x increases by 10, y increased by 2

HELPPPP FASTTTT
PLEASEEEEEEEEEEEE

Answers

Answer:

Function A has a greater slope than Function B.

Step-by-step explanation:

An easy way to solve this would be to graph function B and see which line is steeper. The steeper line always has greater slope.

Answer:

A

Step-by-step explanation:

its function would be y=4x+2

Plz someone solve!!!!!!!!!!!!!!!!!!!

Answers

Answer:

C

Step-by-step explanation:

4y+3 <= y+6

First, we subtract 3 from each side to get 4y <= y + 3.

Next, we subtract y from each side to get 3y <= 3.

Next, we divide each side by 3 to get y <= 1.

The graph is C.

Use the word decay in a sentence

Use the word growth in a sentence

Answers

Answer:

If you don't water your plants and give them sun light they will slowly start to decay.

The growth of how my sister grew this year is incredible she used to be super short.

Step-by-step explanation:

1. not brushing your teeth can cause tooth decay.

2. i monitored the growth of my plant overtime.

The position of an object in a video game is represented by an ordered pair. The coordinates of the ordered pair give the

number of pixels horizontally and vertically from the origin. Use this scenario for Exercise.

a. Suppose that player A is located at (36, 315) and player B is located at (410, 53). How far apart are the players? Round to

the nearest pixel

b. If the two players move directly toward each other at the same speed, where will they meet?

c. If player A moves three times faster than player B, where will they meet? Round to the nearest pixel.

Answers

Answer:

a. 457 pixels b. 229 pixels c. 114 pixels

Step-by-step explanation:

a. Using d = √[(x₂ - x₁)² + (y₂ - y₁)²] to find the distance apart of the coordinates (x₁, y₁) and (x₂, y₂) where (x₁, y₁) = (36, 315) and (x₂, y₂) = (410, 53).

So, d = √[(x₂ - x₁)² + (y₂ - y₁)²]

= √[(410 - 36)² + (53 - 315)²]

= √[374² + 262²]

= √[139,876 + 68,644]

= √208,520

= 456.64

= 457 pixels to the nearest pixel.

b. Since the players are d' distance apart, and moving at a same speed of v, if they approach each other, they meet at time t. So player A covers a distance of d = vt. For them to meet, player B approaches and covers a distance of d = d' - vt. So they meet when vt = d' - vt.

Solving this, we have

vt = d' - vt

vt + vt = d'

2vt = d'

t = d'/2v

Substituting t into d = vt, we have

d = vt

= v(d'/2v)

= d'/2

= 457/2

= 228.5

≅ 229 pixels  to the nearest pixel

c. Since the players are d' distance apart, and player A moves at a speed three times that of player B, if player B moves with speed v, then player A moves with speed 3v, as they approach each other, they meet at time t. So player A covers a distance of d = 3vt. For them to meet, player B approaches and covers a distance of d = d' - vt. So they meet when 3vt = d' - vt.

Solving this, we have

3vt = d' - vt

3vt + vt = d'

4vt = d'

t = d'/4v

Substituting t into d = vt, we have

d = vt

= v(d'/4v)

= d'/4

= 457/4

= 114.25

≅ 114 pixels to the nearest pixel

1
What is the equation of the line parallel to 8x - 16y= -14 and passing through (3, 0)?

Answers

Answer:

8x -16y = 24

Step-by-step explanation:

8x - 16y= -14

A parallel line (i.e. same slope) will be: 8x - 16y= c

We have to find the value of "c".

If it passes through (x, y) = (3, 0) ⇒ 24 - 0 =  c,

so equation is 8x -16y = 24

What is the slope of the following line

Answers

Find any two points: (0,0), (1,3)
(3-0)/(1-0) = 3/1 = 3
Slope is 3

I really need help please I will mark you as brainlist

Answers

15/2 = $7.5 per hour
7.5 times 5 = $37.50 earned in 5 hours

Answer: 30

Step-by-step explanation:

WHOEVER ANSWERS FIRST GETS BRAINLIEST

A regular six-sided number cube is rolled 300 times. Select the outcomes that are
expected to occur about 50 times.
O A. A number greater than 4 is rolled.
B. 3 is rolled.
O C. A number less than 2 is rolled.
O D. An odd number is rolled.
E. 5 is rolled.

Answers

B C E if it is choosing more than one option

The formula for area of a triangle is given by: A=bh/2 Rearrange the formula to solve for b

Answers

Answer:

b =  2A

         h

Step-by-step explanation:

A=bh/2

2A = bh

b =  2A

          h

Answer:

b=(2a)/h

Step-by-step explanation:

Multiply both sides by 2

2A=bh

Divide both sides by h

(2a)/h=b

I need help these. Thank you. :)

Answers

Answer:

the answer is 3 hope this helps

10) Choose the correct answer.

A method of solving systems of linear equations by adding the two equations together is called __________.

*Gaussian addition
*Gaussian elimination
*Gaussian division
*Gaussian substitution

Answers

the answer is A, if you read the sentence it says” by adding “

Write the equation in point-slope form of the line that passes through the given point and with the given slope m.
(3,-4); m = 6
O y + 4 = 6(x - 3)
O y + 3 = 6(x-4)
O y + 4 = 6(x +3)
O y - 4 = 6(x-3)​

Answers

Answer:

y + 4 = 6(x - 3)

Step-by-step explanation:

Point-slope form: y - y1 = m(x - x1)

Given: m = 6, (3, -4)

(x1, y1) = (3, -4)

Input the given values into the equation for point-slope form:

y - (-4) = 6(x - 3)

y + 4 = 6(x - 3)

The equation written in point-slope form is: y + 4 = 6(x - 3)

I hope this helps :)

A block of wood is in the shape of a rectangular prism with dimensions (n+5) cm, (n+8) cm, and (n+14) cm. All faces of the block are painted, and then the block is cut into 1 cm cubes using parallel cuts to each face. If exactly half of the cubes have no paint on them, find the total number of cubes.

Answers

Answer:

The total number of cubes in the rectangular prism are 1,120 cubes

Step-by-step explanation:

The given parameters are;

The dimensions of the rectangular prism block of wood = (n + 5), (n + 8), and (n + 14)

The volume of the block of wood = (n + 5)×(n + 8)×(n + 14) = n³ + 27·n² + 222·n + 560

The quantity of the 1  cm cubes that have no paint = 1/2 of the total quantity = 1/2 the volume of the original cube

The cubes that have paint on them are the surface cubes, we have;

One layer of cube is removed from each of the eight sides, therefore, we have the dimensions of the cube rectangular prism that have no paint on them given as (n + 5 - 2), (n + 8 - 2), and (n + 14 - 2), which gives the dimensions as (n + 3), (n + 6), and (n + 12);

Therefore, we have

2 × (n + 3)×(n + 6)×(n + 12) = (n + 5)×(n + 8)×(n + 14)

2 × (n + 3)×(n + 6)×(n + 12) - (n + 5)×(n + 8)×(n + 14) = 0  

Which gives;

n³ + 15·n² + 30·n - 128 = 0

n = 2

n = -17/2 - √(33)/2 = -5.6277

n = √(33)/2 - 17/2 = -11.3722

Therefore, given that the smallest dimension of the painted prism = (n + 5), the possible value for n = 2

The volume of the rectangular prism = (n + 5) × (n + 8) × (n + 14) = (2 + 5) × (2 + 8) × (2 + 14) = 1120 cm³

Given that the cuts are 1 cm³ each, the total number of cubes in 1,120 cm³ = 1,120 cubes.

of 10
Find the gradient of the line segment between the points (2,-2) and (0,-6).

Answers

Answer:

The answer is 2

Step-by-step explanation:

The gradient of a line given two points can be found by using the formula

[tex]m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\ [/tex]

From the question we have

[tex]m = \frac{ - 6 - - 2}{0 - 2} = \frac{ - 6 + 2}{ - 2} = \frac{ - 4}{ - 2} = 2 \\ [/tex]

We have the final answer as

2

Hope this helps you

hey bro's help me!!​

Answers

Answer:

-7 and 12 gl

Step-by-step explanation:

Answer:

1. -7

2. 12

Step-by-step explanation:

Hope this helps :)

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