How can I solve this with substitution with steps.
y=-6x-16
-2x+4y=-2

Answer:

cos30=12/x

√3/2=12/x

x=12×2/√3=24√3/3=8√3

sin30=y/x

1/2=y/8√3

1/2×8√3=y

y=4√3

Answer:

i am pretty positive the answer is 26 :)

Answer:

(2x8)+(3x10)

Step-by-step explanation:

Answer:

The slope=1

Step-by-step explanation:

(0,7)=(x,y) and (-4,3)=(`x,`y)

The formula for finding slope= `y - y/`x - x

3-7/-4-0

-4/-4

1

Therefore, the slope=1

Answer:

Step-by-step explanation:

Find the complete question below;

Given the height modeled by the function;

h(t) = 5 + 98t-4.9t²

when t = 0

h(0) = 5 + 98(0)-4.9(0)²

h(0) = 5

when t = 5

h(5) = 5 + 98(5)-4.9(5)²

h(5) = 5 + 490 - 122.5

h(5) = 372.5

when t = 10

h(10) = 5 + 98(10)-4.9(10)²

h(10) = 5 + 980 - 490

h(10) = 495

when t = 15

h(15) = 5 + 98(15)-4.9(15)²

h(15) = 5 + 1470 - 1,102.5

h(15) = 372.5

when t = 20

h(10) = 5 + 98(20)-4.9(20)²

h(10) = 5 + 1960 - 4.9(400)

h(10) = 1965- 1960

h(10) = 5

Find the graph attached

Answer:

x=125

Step-by-step explanation:

Answer:

×=0.008

Step-by-step explanation:

I hope this help

Answer:

The acceleration of object is -4 ms⁻²

Step-by-step explanation:

We are given:

Initial Velocity = 65 m/s

Final Velocity = 25 m/s

Time t = 10 seconds

We need to find acceleration.

The formula used to find acceleration is: [tex]Acceleration=\frac{Final\:Velocity-Initial\:Velocity}{Time}[/tex]

Putting value in the formula and finding acceleration:

[tex]Acceleration=\frac{Final\:Velocity-Initial\:Velocity}{Time}\\Acceleration=\frac{25-65}{10}\\Acceleration=\frac{-40}{10}\\Acceleration=-4\:ms^{-2}[/tex]

So, acceleration of object is -4 ms⁻²

Answer:

y - intercept: (0,1)      slope: 2

Step-by-step explanation:

The y - intercept is simply where the line touches the y - axis.

In this case, the line touches the y - axis at (0,1)

Our slope can be found out by finding two points on the line and using the formula, or rise over run. Nevertheless, your slope for this line should be 2.

Answer:

708

Step-by-step explanation:

Answer

1.7/5

1

bhagyashreechowdhury

Ace

2.4K answers

4.9M people helped

Given:

The cost of the T.V. for Colin = £ 800.

The rate of depreciation per year = 4%

Time period = 3 years

To find:

How much will it be worth in 3 years? Give your answer to the nearest penny where appropriate.

Solution:

To solve the above-given problem, we will use the following formula:

where

A = the final value after depreciation

P = the present value

R = rate of depreciation

n = time period

Now, on substituting the given values in the formula, we get

we will round the above answer to its nearest penny where appropriate

≈ £ 708

Thus, the worth of the t.v. in 3 years will be £ 708.

Answer:

The correct answer is 39 units.

Parameter is the sum of the lengths of all sides of a polygon. The sides of the polygon are PT, TS, SR, RQ, and QP. To get the length of a side, we use the distance formula:

d =

Each vertex in the polygon has its corresponding points:

P (-2,11)

T (8, 7)

S (1, 7)

R (2, 0)

Q (-4,5)

So to get the length of side PT, we use the distance formula and the vertices of side PT:

P  = (-2, 11)

T  = (8, 7)

The length of PT is

The same procedure is done for the other 4 sides and the following are the answers:

TS =

SR =

RQ =

QP =

And by adding all the sides, you get the perimeter:

By rounding off, the answer is 39 units.

Step-by-step explanation:

Answer:

Step-by-step explanation:

A and c

Answer:

a

Step-by-step explanation:

Hope this helps:)

Answer:

15 ^ 7/4

a = 15

b = 7

c = 4

Step-by-step explanation:

uh, the answers you provided were confusing

Answer:

Step-by-step explanation:

Hope this Helps ;)

Answer: 3/8q^3 + 9

Step-by-step explanation:

1. combine like terms 5/8q^3 - 1/4q^3, need to make denominator the same to subtract so multiply 2/2 by 1/4q^3, 5/8q^3 - 2/8q^3 = 3/8q^3

2. final answer is : 3/8q^3 + 9

Answer:

undefined or 0

Step-by-step explanation:

Answer:

The answer is 0 because undefined is straight up or vertical

Answer:

Step-by-step explanation:

LOL

Ebony's brother is x + 4 years old.

Ebony's mum is 3x years old.

Since Ebony is x years old, and her brother is 4 years older than her, the expression is x + 4, as her brother is +4 years older.

Ebony's mum is 3 times Ebony's age, which is x. 3 times x is shortened into 3x.

Answer:

he can buy 8 video games

Step-by-step explanation:

125/15.50=8.06

hope this helps

pl make me brainliest

Answer:

5x?

Step-by-step explanation:

Answer:

= 5

Step-by-step explanation:

Multiply all terms by the same value to eliminate fraction denominators

1/4 = x/20

20 ⋅ 1/4 = 20 ⋅ /20

Simplify

= 5

Answer:

k =4

Step-by-step explanation:

you ask your self what + 12 = 16

Answer:

K=4

Step-by-step explanation:

Answer: ? + 12 = 16

Answer:

length 7 and midpoint 3.5

Step-by-step explanation:

length: -7-0=-7 but length is never a negative so its 7

midpoint: 7/2= 3.5

Answer:

Bet the answer is

half way

LOL its yes

Answer:

-6(x-y)

Step-by-step explanation:

Combine the same terms together

; (-3x+2x-5x) + (y+7y-2y)

Use parentheses to make thinking easier.

Combine ; -6x + 6y

Factoring polynomials ; -6(x-y)

hope it helps ☺️

Answer:

C, B

Step-by-step explanation:

Basically to find the slope you take the rise over run. How many squares does the line go up, over how many does it go left or right. As you can see in the diagram, it goes up 2 squares and goes left 1 square, giving the slope 2/1, which is 2.

The slope of a horizontal line is straight, which means it goes up 0, so automatically your answer is zero, because dividing anything by 0 is 0.

Answer:

700 meters

Step-by-step explanation: