How do I factor this?

cos^4x - sin^4x

Answer: it’s 400

Step-by-step explanation:

Answer:

-56[tex]x^{11}[/tex]

Please mark brainliest if you can, thank you

Step-by-step explanation:

Answer:

−56x^11        (The 11 is an exponent)

I hope I helped

Answer:

You can see that the chance of having at least one boy is 1/2 in the first generation, 3/4 in the second, and 7/8 in the third.

Step-by-step explanation:

Answer:

It would be 8

Step-by-step explanation:

20% of 40 is 8

Answer:

8

Step-by-step explanation:

this is correct, i think, sorry if it's not.

ty :9

Answer:

-7b

Step-by-step explanation:

Ok soo you have add the terms.

1b+(-8b)=-7b

Have a good!!

Answer:

-9b

Step-by-step explanation:

i'm assuming this is just combining like terms so if you ignore the (b) you will have

6-5+(-8)

-1+(-8)

-9

then you put back the variable and you get -9b

Answer:

use the matway well help you get the answers

Answer:

Step-by-step explanation:

Supplementary angles add up to 180°.

“θ is 148° more than its supplement”

Supplement of θ = 180°-θ

θ = (180°-θ) + 148°

2θ = 328°

θ = 164°

Supplement of θ = 180°-164° = 16°

Answer:

To get the circumference, multiply the diameter by pi.  You have the diameter in meters, and you were given an approximate value of pi.  Multiply these 2 numbers, and get the circumference in meters.

Step-by-step explanation:

Answer:

144π or about 452.39

Step-by-step explanation:

Diameter = 24 meters

Radius = diameter/2 = 12 meters

Area of a circle = π*radius*radius = π*radius^2

Area = π*12^2 = 144π = 452.39

Answer:

63

Step-by-step explanation:

first yoy need to put the biggest number on the top then multiply each number

Answer: 502.655

Step-by-step explanation:

just search cylinder calculator

Answer:

Area = 156.25 pi square centimetres

Step-by-step explanation:

circumference = 》

[tex]2 \: \pi\:r[/tex]

so,

=》

[tex]2 \: \pi \: r = 25\pi[/tex]

=》

[tex]r = 25 \div 2[/tex]

=》

[tex]r = 12.5[/tex]

now, the area = 》

[tex]\pi \: r \: {}^{2} [/tex]

=》

[tex]\ pi \times 12.5 \times 12.5[/tex]

=》

Answer:

1   600334528/1000000000

Step-by-step explanation: i don't know if this is right but it should be

Answer:

I don't think it is a fraction

Step-by-step explanation:

I used my calculator and nothing happened!

Hope I helped!

But I might be wrong....

Answer:

B (1/6)

Step-by-step explanation:

The cards she draws doesn't affect what number the dice lands on.  1 every 6 times on average the dice lands on 6 so there is a 1/6 probability represented by B.

Answer:

6

Step-by-step explanation:

Using the similarity theorem f the triangle

(4+6)/x+9 = 4/x

10/x+9 = 4/x

Cross multiply

10x =4(x+9)

10x = 4x+36

10x-4x = 36

6x = 36

x = 6

Hence the value of x is 6

Answer:

5x-3xy+2?

srry if its wrong

Answer:

5x- 3xy +2

Step-by-step explanation:

Follow the rule of PEMDAS to simplify expressions.

Answer:

J

Step-by-step explanation:

Answer: F

Step-by-step explanation: Because I Did The Test! :)

Answer:

6.25inch=15.625cm

Step-by-step explanation:

1inch=2.5cm

6.25*2.5=15.625cm

Answer:

20

Step-by-step explanation:

Answer:

The answer is A)-4,6

Step-by-step explanation:

sorry if wrong

hope this helps

plz give brainliest

[tex]8x + 1 > - 31 \\ 8x > - 1 - 31 \\ 8x > - 32 \\ x > \frac{ - 32}{8} \\ x > - 4[/tex]

Answer:

c 25 cubic unit

Step-by-step explanation:

2 1/2=5/2

v=length *width *height

(5/2)*4*(5/2)=25

It would be 25 cubic squares

quiz verified

Answer:

$2.22

Step-by-step explanation:

Answer:

8 meters per minute

Step-by-step explanation:

120/50=8

Hope this helps! :)

Answer:

8 meters/second

Step-by-step explanation:

Divide the distance(120 meters) by the time(15 minutes) to find the answer. the formula for any speed problem is d/t.

Hope this helps!

Answer:

4

Step-by-step explanation:

It is. I just know it lol

Answer:

Figure 3

Step-by-step explanation:

Answer:

a) $525 CAD

b) $168.30 per day

c)  $38.05

Step-by-step explanation:

a)   1 USD =  500  

    1.05CAD      x

cross-multiply:  x = $525 CAD

b) 504.90 / 3 = 168.30 per day

c)   1 USD =   x  

    1.05CAD   39.95

cross-multiply: 1.05x = 39.95

x = 39.95 / 1.05

x = $38.05 USD

Answer:

Bob is at the top, so he starts at step 9.

Sue is at the bottom, so she is at the step 0 (this is the floor, before stepping on step 1)

Sue climbs from one step on one step.

Then she if she climbs n times, she will be at the step number:

S(n) = 0 + 1*n

And Bob goes down by 2 steps each time, then after he goes down n times, his position will be:

B(n) = 9 - 2*n

We want to see when they meet, then we need to solve:

S(n) = B(n)

1*n = 9 - 2*n

1*n + 2*n = 9

3*n = 9

n = 9/3 = 3

n = 3.

This means that they meet a the step:

S(3) = 3*1 = 3

B(3) = 9 - 2*3 = 9 - 6 = 3

They meet at the third steep.

Answer:

Step-by-step explanation:

f(0) = ab^0 = 5

a = 5

f(1) = 5b^1 = 8

b = 8/5

f(x) = 5(8/5)^x

Answer:

y=3/2x-7

Step-by-step explanation:

the equation of the line for slope-intercept form is y=mx+b, where  m is the slope and b is the y intercept.

we are given two points: (4,-1) and (8,5)

the equation for slope is (y2-y1)/(x2-x1)

label the points:

x1=4

y1=-1

x2=8

y2=5

now substitute into the equation:

m=(5--1)/(8-4)

m=6/4

m=3/2

the slope of the line is 3/2

here is our equation so far:

y=3/2x+b

we need to find b

since the equation will pass through the points, we can substitute either one into the equation to find b

let's use (4,-1) as an example

substitute into the equation

-1=3/2(4)+b

-1=6+b

-7=b

the y intercept is -7

so the equation is y=3/2x-7

hope this helps!

Answer:

y=-2x-8

Step-by-step explanation:

-2-4/-3-(-6)=-6/3=-2

y-4=-2(x-(-6))

y-4=-2(x+6)

y-4=-2x-12

y=-2x-12=4

y=-2x-8

Answer:

5

Step-by-step explanation:

-8x + 25 = -15

                 -25 = -40  then

-40 divide -8 to get 5

Answer: x = 5

The first step of the inverse operation is to subtract 25 on both sides of the equation to cancel out the 25 from the left side:

-8x+25 (-25) = -15 (-25)

-8x = -40

Next, you need to divide -8 on both sides to isolate the variable, which would give you the answer to x. The negatives would cancel out, leaving you with: x = 5

hope that helps :)