20 POINTS AND BRAINLIEST !! PLEASE ANSWER THIS QUESTION !!

Answer:

1.  x =-2, y=6

2. x = 0, y = 0

3. x=2, y=10

Step-by-step explanation:

It will take a long time to explain. If you need explanation, tell me.

Answer:

yellow

Step-by-step explanation:

you can only change the amount of games you buy, which would be 24/game for xbox one and 20/game for ps4

Answer:

(0,1) , (2,4) , (4,7)

Explanation:

convert the equation into slope-intercept form (this would be y=3/2x+1)

now plug in random numbers for x and solve for y by multiplying them by 3/2 and adding 1.

Answer:

The answer is Real numbers

Answer:

x =  -2  ±sqrt( 19)

Step-by-step explanation:

x^2 + 4x = 15

Take the coefficient of x

4

Divide by 2

4/2 =2

Square it

2^2 = 4

Add it to each side

x^2 + 4x+4 = 15+4

(x+2)^2 = 19

Take the square root of each side

sqrt( (x+2)^2) =±sqrt( 19)

x+2 =  ±sqrt( 19)

Subtract 2 from each side

x+2-2 = -2  ±sqrt( 19)

x =  -2  ±sqrt( 19)

Answer:

333

Step-by-step explanation:

Answer:

34 hard-headed skeptics

Step-by-step explanation:

Write and solve an equation of ratios:

  459       2

--------- = ----

 7803      x

Cross-multipying, we get:

459x = 15606, which yields  x = 15606/459 = 34

There were 34 hard-headed skeptics.

The surface area of a sphere can be determined from the radius by the equation of 4πr². Hence, the surface area of the sphere of 9 units is approximately 1017.36 square meters.

Surface area is the total area that covers the surface of a 3-dimensional object. It is a measure of how much area needs to be covered to completely wrap around the exterior of the object.

In other words, it is the sum of the areas of all the faces or surfaces that make up the object. The unit of measurement for surface area is typically square units, such as square centimeters, square meters, or square feet.

The formula for the surface area of a sphere is:

A = 4πr^2

Where A is the surface area and r is the radius of the sphere.

Substituting r = 9 units, we get:

A = 4π9²

A = 4π(81)

A = 324π

Therefore, the surface area of a sphere with a radius of 9 units is approximately 324π square units, or approximately 1017.36 square units if you round to two decimal places.

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Answer:

see explanation

Step-by-step explanation:

Given

tan a = [tex]\frac{9}{40}[/tex] = [tex]\frac{opposite}{adjacent}[/tex]

We require the hypotenuse h

Using Pythagoras' identity

h² = 9² + 40² = 81 + 1600 = 1681 ( take square root of both sides )

h = [tex]\sqrt{1681}[/tex] = 41 , thus

sin a = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{9}{41}[/tex]

cos a = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{40}{41}[/tex]

Answer:

The domain of a function is the complete set of possible values of the independent variable. In plain English, this definition means: The domain is the set of all possible x-values which will make the function "work", and will output real y-values.

Answer:

5x² - 13x + 71

Step-by-step explanation:

We are to subtract 3x²+7x-43 from 8x²-6x+28

That is:

8x² - 6x + 28 - (3x² + 7x - 43)

8x² - 6x + 28 - 3x² - 7x + 43

Collect like terms:

8x² - 3x² - 6x - 7x + 28 + 43

5x² - 13x + 71

Answer:

the answer 5x² - 13x + 6

Step-by-step explanation:

Answer:

60

Step-by-step explanation:

60+60+y=180 (angle sum property )

120+y=180

y=180-120

y=60

Answer:

27

Step-by-step explanation:

Kinetic energy = [tex]\frac{1}{2} m*v^2[/tex]

m = 6

v = 3

3 * 9 = 27

KE = 0.5 m.v^2

= 0.5*6*3^2

=27J

Answer:

−7k^4−11k^2+6

Step-by-step explanation:

−4k^4+14+3k^2−3k^4−14k^2−8

(−4k^4+−3k^4)+(3k^2+−14k^2)+(14+−8)

−7k^4−11k^2+6

...

Answer:

C) BE ≅ CE

Step-by-step explanation:

[tex]\triangle BEA \cong \triangle DEC\\BE \ncong CE\\[/tex]

Because BE and CE are not corresponding sides.

The corresponding sides and angles of a congruent triangle are congruent.

(c) [tex]\mathbf{\angle BE \cong CE}[/tex] is incorrect

From the question, triangles BEA and CED are congruent.

This means that, the following statements are true

The above statements represent options (a), (b) and (d).

This means that:

[tex]\mathbf{\angle BE \cong CE}[/tex] is incorrect

This is so because, BE and CE are not corresponding sides.

Hence, (c) [tex]\mathbf{\angle BE \cong CE}[/tex] is incorrect

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Answer:

a) 21.43% (It is unusual to happen)

b) 21.43%

c) 57.14%

d) Probability of you liking both songs played = 25%

Probability of liking exactly one song = 50%

Step-by-step explanation:

a)

If you like 4 of the 8 songs, the probability of liking the first song is 4/8

Then, for the second song, we have 3 songs you like among 7 songs that can be played, so the probability is 3/7.

So the probability of you liking both songs played is:

P = (4/8) * (3/7) = 0.2143 = 21.43% (It is unusual to happen)

b)

If you like 4 of the 8 songs, you dislike 4 as well, so the probability of not liking the first song is 4/8.

Then, for the second song, we have 3 songs you dislike among 7 songs that can be played, so the probability is 3/7.

So the probability of you disliking both songs played is:

P = (4/8) * (3/7) = 0.2143 = 21.43%

c)

In this case you can like either the first or the second song, so we need to sum the probabilities of both cases:

Probability of liking the first song and disliking the second:

P1 = (4/8) * (4/7) = 0.2857

Probability of disliking the first song and liking the second:

P2 = (4/8) * (4/7) = 0.2857

P = P1 + P2 = 0.5714 = 57.14%

d)

If a song can be replayed, we have:

Probability of you liking both songs played:

P = (4/8) * (4/8) = 0.25 = 25%

Probability of liking the first song and disliking the second:

P1 = (4/8) * (4/8) = 0.25

Probability of disliking the first song and liking the second:

P2 = (4/8) * (4/8) = 0.25

P = P1 + P2 = 0.5 = 50%

Answer: Construction and Engineering

Answer:

They are the same

Step-by-step explanation:

Both have a 2 1/2 height so we wont consider that in our answer. What we have left is the width and length.

Box A = 2 × 1/2 = 1

Box B = 1 × 1 = 1

Answer:

communicative property

Step-by-step explanation:

Answer:

Option A

Step-by-step explanation:

Temperature on y axis, it changes as time changes

Answer:

C.

Step-by-step explanation:

Take the equation for finding the volume of a sphere and plug in your radius

4π[tex]\frac{r^3}{3}[/tex] = V

your equation would plug in 7 for the r. Then simplify the rest of the equation.

Answer:

c

Step-by-step explanation:

I'm not sure but i hope this helps

Answer:

-6 = x

Step-by-step explanation:

2x-8=4(x+1)

Distribute

2x -8 = 4x+4

Subtract 2x

2x-8-2x = 4x-2x+4

-8 = 2x+4

Subtract 4

-8-4 = 2x+4-4

-12 = 2x

Divide by 2

-12/2 = 2x/2

-6 = x

Answer:

[tex]x = - 6[/tex]

Step-by-step explanation:

[tex]2x - 8 = 4(x + 1) \\ 2x - 8 = 4x + 4 \\ 2x - 4x = 8 + 4 \\ - 2x = 12 \\ \frac{ - 2x}{ - 2} = \frac{12}{ - 2} \\ x = - 6[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

4/5 book per hour

Step-by-step explanation:

In this question, we are to rewrite (2/5)/(1/2) as unit rate.

To write this as a unit rate, what we need to do

is to divide 2/5 by 1/2.

That means 2/5 divided by 1/2

Removing the division and replacing with multiplication will give 2/5 * 2/1 = 4/5 books/hour

Step-by-step explanation:

4/5 books/hour

Answer: 4x+3

Step-by-step explanation: 2x+2x=4x

                                             2x1=3

The simplified form of the equation is  4x² + 6x + 2.

Simply put, to simplify is to make something simpler. Simplifying an equation, fraction, or issue in mathematics entails taking something complex and making it simpler. The issue is made simpler by calculations and problem-solving strategies. We can simplify fractions by removing all common elements from the numerator and denominator and putting the fraction in its simplest/lowest form.

Given the equation (2x + 2)(2x + 1)

using property, (a + b)(c + d) = a(c + d) + b(c + d)

(2x + 2)(2x + 1) = 2x(2x +1) + 2(2x + 1)

2x + 2)(2x + 1) = 2x(2x) + 2x(1) + 2(2x) + 2*1

2x + 2)(2x + 1) = 4x² + 2x + 4x + 2

2x + 2)(2x + 1) = 4x² + 6x + 2

Hence the Expand form of the equation is 4x² + 6x + 2.

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Answer:

In mathematics, a ratio indicates how many times one number contains another. For example, if there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six (that is, 8∶6, which is equivalent to the ratio 4∶3).

Step-by-step explanation:

Answer:

x = 2

Step-by-step explanation:

if the line passes through the x axis it means  we should use the of x

if it passes through y we should use value of y

in this question perpendicular means at a 90 degree angle

the coordinates is 2,6

so x must be 2

Answer:

Option (D).

Step-by-step explanation:

In the figure attached,

Triangle ACB is a right triangle having,

Leg AC = b = 13

Leg BC = a

Angle A = 76°

and, Hypotenuse AB = c

By applying tan rule in the given triangle,

tanA = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]

tan(76)° = [tex]\frac{BC}{AB}[/tex]

             = [tex]\frac{a}{b}[/tex]

4.01 = [tex]\frac{a}{13}[/tex]

a = 13 × 4.01

a = 52.13

a ≈ 52.1

Therefore, Option (D). will be the answer.

Answer:

52.1

Step-by-step explanation:

Answer:

ES IGUAL A 1.03

Step-by-step explanation:

Answer:

9/4 or 2 1/4

Step-by-step explanation:

9=4t

Divide each side by 4

9/4=4t/4

9/4 = t

Or as a mixed number

2 1/4 = t

Answer: 9/4

Step-by-step explanation:

Answer:

what are the excersises

Step-by-step explanation:

Answer:

f(−1) = ✔ 2 f(1) = ✔ 6f (2) = ✔ 11

Step-by-step explanation: