Please help me with this surds question. Explain how you got your answer.

here is one I hope this helps lol I'll follow u if u follow me

Answer:

use math -way it helps a lot

Step-by-step explanation:

Answer: C.

Step-by-step explanation: 14

Answer:

C. 14

Step-by-step explanation:

Simplify the expression.

-3(7 + 5) ÷ 3² + 9(2)

-3 ⋅ 12 ÷ 3² + 9(2)

-36 ÷ 3² + 9(2)

Simplify each term.

Raise  

-36 ÷ 9 + 9(2)

Divide

-4 + 9(2)

Multiply

-4 + 18

Add

14

good luck, i hope this helps :)

Answer:

30 minutes each evening

Step-by-step explanation:

5.25 / 7 = 0.75 hours each day = 45 minutes

45 - 15  = 30 minutes

Answer:

x=[tex]\frac{10}{14}[/tex]

Step-by-step explanation:

y=7x-2

2(7x-2)-4x=10

14x-4-4x=10

14x-4x=10-4

10x=14

x=[tex]\frac{10}{14}[/tex]

Answer:

a = 4 , b = -2

Step-by-step explanation:

3a + b = 10

2a + 4b = 0

(By using elimination method, eliminate one variable) - to get only one equation

(3a + b = 10 ) 4

2a + 4b = 0

12a + 4b = 40

(minus)

2a + 4b = 0

10a = 40

a = 40/10

a = 4

(substitute a into an equation to get b)

2a + 4b = 0

2(4) + 4b = 0

4b = 0 - 8

b = -8/4

b = -2

Answer:

21.70-3/4n

Step-by-step explanation:

Answer:

190 yd^2

Step-by-step explanation:

This is a parallelogram, and you can essentially take the dotted line, cut off the excess and stick it on the back creating a rectangle with length 15.2 yd and height 12.5. To find the area you multiply the 2 together getting 190 yards squared.

Answer:

The answer is -2a because first you multiple the number and eliminate redundant perenthese then last combine like terms and that how you get -2a

Answer:

m = [tex]\frac{-1}{2}[/tex]

Step-by-step explanation:

To find the slope of most lines, we should rearrange the equation into the slope-intercept form or y = mx + b.

So,

2x + 4y = 8

4y = -2x + 8

[tex]y=\frac{-2x +8}{4}[/tex]

[tex]y=\frac{-2}{4}x+\frac{8}{4}[/tex]

[tex]y=\frac{-1}{2}x+2[/tex]

The slope is the coefficient of the x term, so

m = [tex]\frac{-1}{2}[/tex]

Answer:

[tex]-\frac{1}{2}[/tex]

Step-by-step explanation:

2x+4y=8

4y = -2x +8

y = [tex]-\frac{2}{4}[/tex]x + [tex]\frac{8}{4}[/tex]

y = [tex]-\frac{1}{2}[/tex]x + 2

y=mx+b so the slope is m=[tex]-\frac{1}{2}[/tex].  

parallel lines have the same slope.

Answer:

y = 25.8

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

cos y = adjacent/ hypotenuse

cos y = 18/20

Take the inverse cos of each side

cos ^-1 (cos y) = cos^-1(18/20)

y =25.84193276

Rounding to the nearest tenth

y = 25.8

Answer: 112, 68, 22, 90

Step-by-step explanation:

This is fairly somewhat easy

since the adjacent side of 1 is 68 degrees

then 1 would be 112 degrees to make it supplementary to 180 degrees

angle 3 is vertical of angle 68

making it 68 degrees

angle 5 is given to be 90 degrees meaning angle 4 is inbetween

angles 3 and 5 so ( 68 and 90 ) that'll add up to 158 meaning angle 4

is 22

angle 1 = 112

angle 3 = 68

angle 4 = 22

angle 5 = 90

Answer: 2/3

Step-by-step explanation:

y=mx+b

Answer:

2/3

Step-by-step explanation:

the equation is in y=mx+b form and m=slope so 2/3 would be the slope.

hope this helped :)

Answer:

hello! although i am not really knowlegeble about this subject,  i hope the lengths below can help you solve the problem :)

Step-by-step explanation:

side length: 62.03inches

perimeter: 168.06

area:1276

if this does help you, a brainliest would be appreciated!

Answer:

F

Step-by-step explanation:

see attached image above

Answer:

Step-by-step explanation:

the area will be

A=(4x+3)(3x-2)

A=12x^2-8x+9x-6

A=12x^2+x-6

Answer:

J+9=S

Step-by-step explanation:

Answer:

j+9=s

Step-by-step explanation:

Answer:

73.5

Step-by-step explanation:

Answer:

86.64 uwu

Step-by-step explanation:

Answer:

0.15

Step-by-step explanation:

Answer:

entrance fee: $8

cost of each ride: $3

Step-by-step explanation:

step 1. the x intercept is when y=0.

step 2. 2x -5(0) = 20 or x = 10.

step 3. the x intercept is (10, 0)

step 4. the y intercept is when x=0.

step 5. 2(0) - 5y = 20 or y = -4

step 6. the y intercept is (0, -4).

Answer:

Step-by-step explanation:

[tex]sin90/10=sin45/y\\ \\ y=10sin45\\ \\ y=5\sqrt{2}[/tex]

Answer:

The answer is

[tex]5 \sqrt{2} [/tex]

Step-by-step explanation:

By using Pythagoras

Then

[tex] {y}^{2} + {y}^{2} = {10}^{2} \\ 2 {y}^{2} = 100 \\ {y}^{2} = 50 \\ y = \sqrt{50} = \sqrt{2 \times 25} = 5 \sqrt{2} [/tex]

Answer:

£6368

Step-by-step explanation:

You can start by making a formula, which will be:

100/100=1

1.5/100=0.015

1+0.015=1.015 (your multiplyer)

6000*1.015^n= your money after 4 years

(n represents the number of years)

Now you just put in the number of years:

6000*1.015^4=6368.181304

Now round:

Answed= £6368

Answer:

A.9

Step-by-step explanation:

9 x 3 = 27, 27 divided by 3 is.. 9

The height of the building is approximately 105 ft.

According to the question,

We have the following information:

The angle made from their location to the building = 59°

The distance of the building from their location = 63 ft

Now, we can find the height of the building by using trigonometric function of tan.

We know that tan is equal to perpendicular/base.

In this case, perpendicular is the height of the building and base is the distance of the location from the building.

We have:

Tan 59° = Height of the building/distance of the building from the location

We know that the value of tan 59° is 1.6643.

Let's take the height of the building to be H ft.

1.6643 = H/63

H = 1.6643*63 ft

H = 104.85 ft

Now, this number can be rounded off to 105 ft.

Hence, the correct option is a.

To know more about height here

https://brainly.com/question/10726356

#SPJ1

Answer:

-200 isn't higher than 450 but 450 is:

450 is 250 higher than -200

Step-by-step explanation:

Do you mean exponential form as in scientific notation or as in prime factorization.

Now matter I will do both.

As in scientific notation.

200*75

=150*100

=1.5*10000

=1.5*10^4

As in prime factorization.

200*75

=2^3*5^2*3*5^2

=2^3 * 3 * 5^4

Do the one your teacher ask for :) Hope it helps!