Plz need help I will mark branliest

Answer:

The number would be 5!

Step-by-step explanation:

23-8=15

15/3=5

Have a wonderful day!! :)

Answer:

8+x/3=23

Step-by-step explanation:

x/3=15

x=15x3=45

Answer:

Solution:

(See the solution in the photo)

Answer:

[tex]\sf -5\cos \left(x\right)+6\cos ^3\left(x\right)[/tex]

explanation:

[tex]\sf y = sin(x) * cos(2x)[/tex]

[tex]\rightarrow \sf \frac{d}{dx}\left(sin\left(x\right)\ * \:\:cos\left(2x\right)\right)[/tex]

[tex]\sf \bold {Apply\:the\:Product\:Rule}:\quad \left(f\cdot g\right)'=f\:'\cdot g+f\cdot g'[/tex]

[tex]\rightarrow \sf \frac{d}{dx}\left(\sin \left(x\right)\right)\cos \left(2x\right)+\frac{d}{dx}\left(\cos \left(2x\right)\right)\sin \left(x\right)[/tex]

[tex]\sf \bold{ Apply \ differentiation \ rule \ \ \ : } \ \ \ sin(x) = cos(x) \ \ and \ \ cos(x) = -sin(x)[/tex]

[tex]\rightarrow \sf \cos \left(x\right)\cos \left(2x\right)+\left(-\sin \left(2x\right)\ * \:2\right)\sin \left(x\right)[/tex]

[tex]\rightarrow \sf \cos \left(x\right)\cos \left(2x\right)\left-2\sin \left(2x\right)\sin \left(x\right)[/tex]

[tex]\sf \bold {use \ the \ formulae \ : \ cos(2x) = 2cos^2(x) - 1} \ {and} \ \ \sf \bold{sin(x) = 2 sin x cos x}[/tex]

[tex]\rightarrow \sf cos(x) (2cos^2 (x) -1) -2(2sin(x)cos(x)sin(x))[/tex]

[tex]\rightarrow \sf 2cos^3 (x) - cos(x) - 4sin^2(x) cos(x)[/tex]

[tex]\rightarrow \sf -5\cos \left(x\right)+6\cos ^3\left(x\right)[/tex]

Answer:

The percentage reduction is 7%

The number 4 siblings are least likely to be selected

Probability is the likelihood of an event occurring or not. Probability value ranges from  impossibility(0) to certainty(1).

The lower the value, the less likely the event is bound to occur.

From the probability distribution table, the probability of having 4 siblings at the game is 0.

This is the lowest out of all the given values in the probability distribution table. Therefore, it is the least likely event.

Thus the number 4 siblings are least likely to be selected

To know more about probability follow

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If the slope of the line is 7 /10, the vertical change that will be present for a horizontal change of 63 ft is 44.1 ft

The slope of a line is the measure of its steepness. Therefore,

slope = change in y(vertical) / change in x(horizontal)

slope = y₂ - y₁ / x₂ - x₁

slope = 7 / 10

Therefore,

7  / 10 = y / 63

cross multiply

441 = 10y

divide both sides by 10

y = 441 / 10

y = 44.1 ft

learn more on slope here: https://brainly.com/question/18555739

Graph of a function is plotting of its input and corresponding output. The graph of the considered cubic function is attached below.

Suppose the considered function whose graph is to be made is [tex]f(x)[/tex]

The values of 'x' (also called input variable, or independent variable) are usually plotted on horizontal axis, and the output values [tex]f(x)[/tex]

are plotted on the vertical axis.

They are together plotted on the point

[tex](x,y) = (x, f(x))[/tex]

This is why we usually write the functions as:

[tex]y = f(x)[/tex]

For the considered function [tex]f(x) = x^3 +x^2 +x + 1[/tex] is attached below.

Learn more about graphing functions here:

https://brainly.com/question/10166124

Answer:

( a − 1 + b )( a − 1 − b )

.

Answer:

(a−1+b)(a-1−b)

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

The container will take 25 minutes to go from full to empty.

Step-by-step explanation:

In 15 minutes, the container has lost 3 gallons of water (

5

−

2

=

3

).

Since the leak is at a constant rate, we can determine that every five minutes the container loses one gallon.

So for the container to lose the full 5 gallons will take 25 minutes (

5

×

5

=

25

Step-by-step explanation:

We have that the vertices of triangle ABC are:

A(4, 2)

B(7, 9)

C(7, 2)

First, we are reflecting over the y axis, which makes (x,y) map onto (-x, y). This gives us:

A'(-4, 2)

B'(-7, 9)

C'(-7, 2)

Then, we translate 5 units down, meaning we subtract 5 from each of the y coordinates. This gives us a final answer of:

D(-4, -3)

E(-7, 4)

F(-7, -3)

Answer:

Step-by-step explanation:

It’s 60 baka

L = lengh

W = width

french reasoning ( hello from France ) !

The base of the house is a rectangle where the length of a rectangle is 8 more than the width.

=> L = W + 8

and

Its area is 240 ft sq

W x L = 240

L = W + 8

W x L = 240

=> W x (W+8) = 240

W² + 8W - 240 = 0

Δ = 8² - 4*1*(-240) = 32²

W' = (-8 + 32) / 2 = 12 ft

W'' = (-8 - 32) / 2 = impossible

at the end

W the width = 12 ft

and then the lengh = 12 + 8 = 20

area = 12 x 20 = 240 ft²

Hey there!

1 litres = 1000 milliliters

To find the value we multiply litres × 1000

=> 2.19 × 1000

=> 2190

Therefore, 2.19 to milliliters is 2190 millilitres

Answer:

900 acres of wheat

1350 acres of corn

750 acres of oats

Step-by-step explanation:

3000 = 100%

÷ 10 both sides

300 = 10%

× 3

900 = 30%

300 = 10%

× 4

1200 = 40%

300 ÷ 2 = 150 (5%)

1200 + 150 = 1350

1350 + 900 = 2250

3000 - 2250 = 750

The fixed charge is about 5 pound. For extra 6 km, extra cost is about 9 pound

A linear equation is in the form:

y = mx + b

Where m is the rate of change and b is the initial value of y.

From the graph:

The fixed charge is about 5 pound.

Using the point (0, 5) and (20, 35)

Charge per mile = (35 - 5) / (20 - 0) = 1.5 pound per mile

For extra 6 km, extra cost = 1.5 * 6 km = 9 pound

Find out more on linear equation at: https://brainly.com/question/2972832

What, do you want that thing to be answered? There is a app that does your math for you in a few seconds i hope ya know. I dont think anyone here could figure that out either.

Answer:

25

Step-by-step explanation:

Answer:

Since

x=−5 is a vertical line, there is no y-intercept and the slope is undefined.

Slope: Undefined

y-intercept: No y-intercept

Step-by-step explanation:

The length of the guy wire (rounded to the nearest foot) is 20 ft. Then the correct option is A.

It is a type of triangle in which one angle is 90 degrees and it follows the Pythagoras theorem and we can use the trigonometry function.

A guy wire supports a cell phone tower.

The guy wire makes a 55° angle with the ground and touches the ground 34 ft from the base of the tower.

Base = 34 ft.

The length of the wire will be given as

[tex]\rm Wire \ length = 34 * cos\ 55^o\\\\Wire \ length = 19.5 \approx 20 \ ft[/tex]

The length of the wire is 20 ft. Then the correct option is A.

More about the right-angle triangle link is given below.

https://brainly.com/question/3770177

Answer:

is 59ft

Step-by-step explanation:

just took the test

The probability (in percentage form) is 3.6%, so the correct option is the last one.

First, Janet is assigned to a car. We want to find the probability that it is a red car. All the cars have the same probability of being assigned, then the probability of getting a red car is equal to the quotient between the number of red cars and the total number of cars:

p = 2/(8) = 1/4

Now there is 1 red car left and 7 cars in total left.

Sarah is next on line, the probability that she gets a red car will be:

q = 1/7

The joint probability (the probability of both of these events happening) is given by the product of the two individual probabilities, so we get:

P = (1/4)*(1/7) = 0.036

If we multiply this by 100%, we get:

P = 100%*0.036 = 3.6%

So the correct option is the last one.

If you want to learn more about probability, you can read:

https://brainly.com/question/251701

Answer:

Step-by-step explanation:

i think it is reflection in the line y=-1

Answer:

Delivery Trip: 3 hours

Return Trip: 4 hours

Step-by-step explanation:

d/60 + d/45 = 7

45d/2700 + 60d/2700 = 7

105d/2700 = 7

105d = 18900

d = 180

180/60 = 3

180/45 = 4

Answer:

delivering 180/45 = 4 hours and return trip 180/60 = 3 hours

Step-by-step explanation:

d = unknown number to calculate each trip

[tex]\frac{d}{45}[/tex] + [tex]\frac{d}{60}[/tex] = 7

find common denominator (45 * 60 = 2700)

([tex]\frac{60}{60}[/tex])*([tex]\frac{d}{45}[/tex]) +( [tex]\frac{45}{45}[/tex])*([tex]\frac{d}{60}[/tex]) =7

[tex]\frac{60d}{2700}[/tex] + [tex]\frac{45d}{2700}[/tex] =7

[tex]\frac{60d + 45d}{2700}[/tex] =7

[tex]\frac{105d}{2700}[/tex] = 7

105d = 7 * 2700

105d = 18,900

d = 18900/105

d = 180

delivering 180/45 = 4 hours

return trip 180/60 = 3 hours

Answer:

$3.70

Step-by-step explanation:

0.2 x 6 = 1.2

1.2 + 2.5 = 3.7

Answer:

The maximum revenue is $320,000

Step-by-step explanation:

To find the maximum of a function f, the procedure is as follows:

The revenue function for a bicycle shop is

R(x)=xp(x), where p(x)=800-0.5x. Substituting:

[tex]R(x)=x(800-0.5x)=800x-0.5x^2[/tex]

Find the first derivative of R:

R'(x)=800-x

Equate to 0:

800-x=0

Solve:

x=800

There is only one critical point. Substitute it into the revenue function:

[tex]R(800)=800(800)-0.5(800)^2=320,000[/tex]

The maximum revenue is $320,000

Answer:
With respect to angle A, a is opposite, b is adjacent, c is the hypotenuse

With respect to angle B, b is opposite, a adjacent, and c is the hypotenuse.

Step-by-step explaination:

To find the opposite side of an angle of a right triangle - look at the side that is directly across from that angle.  For example, angle A shows that the side directly across from it is side a.

To find the adjacent side of an angle of a right triangle - look at the side that is right next to it and connected to the 90 degree angle.  For example, angle B shows that the side that is next to it and connected to the 90 degree angle is side b.

The hypotenuse will always be the longest side opposite the 90 degree angle.

Answer:

x = -10

Step-by-step explanation:

1.4x = -7.9 -6.1

1.4x = -14

x = -14÷1.4

x= -10

Answer:

x = -10

Step-by-step explanation:

Answer: A sphere (from Greek σφαῖρα—sphaira, "globe, ball") is a geometrical object that is a three-dimensional analog to a two-dimensional circle. A sphere is the set of points that are all at the same distance r from a given point in three-dimensional space. That given point is the center of the sphere, and r is the sphere's radius. The earliest known mentions of spheres appear in the work of the ancient Greek mathematicians.

Step-by-step explanation: The formula used to calculate the sphere radius is: r = ∛((3/4) · V / π) Symbols. r = Sphere radius; V = Sphere volume; π = Pi = 3.14159… The volume of Sphere. Enter the volume contained within a sphere. The radius of Sphere. This is the radius of a sphere that corresponds to the specified volume.

Answer:

-3

Step-by-step explanation:

-|-5+2|

= -|-3|

= - 3

Hope it helps

Answer:

-3

Step-by-step explanation:

-|-5+2|

-|-3| absolute value of -3 is 3

-3

Answer:

-1

Step-by-step explanation:

I used a calculator :)

The answer is -1

Because if you do all the math you will find that the answer is -1.

The equation which shows the one way to determine the factors of provided equation by grouping is,

[tex]2x^2(6x-1)+3(6x-1)[/tex]

Polynomial equations is the expression in which the highest power of the unknown variable is n (n is real number).

Factor of a polynomial is the terms in linear form, which are when multiplied together, give the original polynomial equation as result.

The provided polynomial equation is,

[tex]12x^3 - 2x^2 +18x - 3[/tex]

To factorize the above polynomial equation, make the groups, by taking out the greatest common factor.

[tex]12x^3 - 2x^2 +18x - 3\\2x^2(6x-1)+3(6x-1)\\(6x-1)(2x^2+3)[/tex]

Hence, the equation which shows the one way to determine the factors of provided equation by grouping is,

[tex]2x^2(6x-1)+3(6x-1)[/tex]

Learn more about factor of polynomial here;

https://brainly.com/question/24380382