I NEED HELP ASAP !! IF YOU ANSWER WITHOUT ACTUALLY ANSWERING AND ONLY FOR POINTS YOU WILL BE REPORTED!!

Answer:

Step-by-step explanation:

Plug the first equation into the second

[tex]4x+3(-2x-5)=15\\4x-6x-15=15\\-2x=30\\x=-15[/tex]

y=-2(-15)-5

=30-5

=25

Answer:

12.8 units

Step-by-step explanation:

Adding a diagonal makes it into 2 of the same right-angled triangles.

In right angled triangles, you can use Pythagoras' therorem which says that a^2+b^2=c^2 where a and b are the shorter sides and c is the diagonal.

This means that 8^2+10^2=diagonal^2=64+100=164

The diagonal is then the square root of 164 which equals 12.806248...

Answer:

He will earn $123.25

Step-by-step explanation:

You multiply $7.26 by 17.

Answer:

sin B= 33.06

Step-by-step explanation:

Hope this Helped!

Answer: Jesse

Step-by-step explanation:

Elizabeth - 50f/10s

Jesse - 55f/10s

Reagan - 53.3333333/10s

Jesse is the fastest

Answer:

I think that Jessie swam the fastest

Step-by-step explanation:

Jessie swam the fastest bc Reagan only swims 160 feet in half a minute and 110 is less than 160 and 20 + 20 =40 so if Jessies swimming speed and time was multiplied by 2, she would still swim faster!

(sorry Im not the best at math but I hope you can understand my logic lol)

Answer:

Step-by-step explanation

Answer:

-10

Step-by-step explanation:

Answer:

4.−10..?

Step-by-step explanation:

Use Cymath.com for your math equations so you don't have to waste points on here!

Answer:

1/4 is 25% .25 1/25 is 4% 0.04 1/6 is .167 16.67% 1/3 is 0.33 or 33%

Step-by-step explanation:

Answer:

Step-by-step explanation:

Distribute

2x+6 = x-4

Subtract 6 on both sides

2x = x-10

Subtract x on both sides

x = -10

2(x+3)=x-4 perform indicated multiplication on left side

2x+6=x-4 subtract d from both sides

x+6=-4 subtract 6 from both sides

x=-10

Answer:

is this premite, volume or area

Step-by-step explanation:

Answer:

1) f(x) = 0.5*(x + 3)*(x - 4)

2) f(x) = -2*x^2 - 2*x + 12

Step-by-step explanation:

Wen we have a quadratic function like:

f(x) = a*x^2 + b*x + c*x

And it has roots at x1 and x2, we can write the function in the factored form as:

f(x) = a*(x - x1)*(x - x2)

then:

1) we have x-intercepts at: (-3, 0) and (4, 0) (then the roots of this function are x = -3 and x =4) and we know that f(1) = -6

we have:

x1 = -3

x2 = 4

then we can write f(x) as:

f(x) = a*(x - (-3))*(x - 4)

f(x) = a*(x + 3)*(x - 4)

Where a is a real number.

and now we can use the fact that f(1) = -6

then:

f(1) = a*(1 + 3)*(1 - 4) = -6

       a*4*(-3) = -6

       a*-12 =  -6

       a = -6/-12 = 1/2 = 0.5

Then the function is:

f(x) = 0.5*(x + 3)*(x - 4)

2) Now we have roots x = 2 and x = .3

Then:

x1 = 2

x2 = -3

Then this function is something like:

f(x) = a*(x - 2)*(x - (-3))

f(x) = a*(x - 2)*(x + 3)

Now we know that f(0) = 12.

then:

f(0) = a*(0 - 2)*(0 + 3) = 12

         a*(-2)*3 = 12

          a*(-6) = 12

          a = 12/-6 = -2

f(x) = -2*(x - 2)*(x + 3)

And we do not want this one written in factored form, so we can just distribute the multiplications to et:

f(x) =  -2*(x - 2)*(x + 3) = (-2*x + 4)*(x + 3) = -2*x^2 + 4*x - 6*x + 12

f(x) = -2*x^2 - 2*x + 12

Answer:

426.07 square units

Step-by-step explanation:

Recall that for a triangle whose angles are A,B,C  with corresponding sides a, b, c, the area G of the triangle may be computed as

G = 1/2 ab Sin C

or

G = 1/2 bc Sin A

or

G = 1/2 ac Sin B

Going by this, recall that the sum of angles in a triangle is 180 hence

94 + 26 + K = 180

120 + K = 180

Subtract 120 from both sides

K = 180 - 120

K = 60 degrees

Given that JK = 24 and JL = 41

G = 1/2 * 24 * 41 Sin 60

= 426.07 square units

Answer:

1/2 or 0.5 is the correct answer of this question

Answer:

B.f(x)=4x

Step-by-step explanation:

Multiply x value by 4

Answer:

3.-42

Step-by-step explanation:

3.

x+2=0,x=-2

f(-2)=(-2)³-3(-2)²+4(-2)-14=-8-12-8-14=-42

4.

x³-x²-22x+40

put x=2

2³-2²-22(2)+40

=8-4-44+40

=48-48

=0

x=2

so x-2 is one factor.

by synthetic division.

2 |  1  -1  -22   40

  |       2    2  -40

 _____________

     1   1   -20  | 0

x²+x-20=0

x²+5x-4x-20

=x(x+5)-4(x+5)

=(x+5)(x-4)

x³-x²-22x+40=(x+5)(x-2)(x-4)

Answer:

b

Step-by-step explanation:

for every x, there must be exactly one y for it to be a function. so, if there is more than one x per y, it's not a function.

in b, -2 (x) has two different y's which are 5 and 7, making it not a function.

Answer:

use formula

Step-by-step explanation:

equate them and then u will see ur answer

Answer:

a^2 + b^2 + 2ab - (3xy)^1/3

Step-by-step explanation:

Here we want to make a subtraction

Cube root of the product of x and 3y

x * 3y = 3xy

Cube root of this;

(3xy)^1/3

The sum of a and b is (a + b)

Square of this sum;

(a + b)^2 = a^2 + 2ab + b^2

Now, subtract the cube root

we have;

a^2 + b^2 + 2ab - (3xy)^1/3

Answer:

8y+2x+2w

Step-by-step explanation:

Answer:

I have literally no idea. Very sorry!

Answer:

x = 2, x = 1                                              

Answer:

2√5

Step-by-step explanation:

Using the formula for calculating resultant

R = √Fx + Fy

\sum Fx = -2sin 45 + 4 cos 45

\sum Fx =  2cos45

\sum Fx = 2(1/√2)

\sum Fx   = 2/√2

Similarly;

\sum Fy = 2 cos 45 + 4 sin45

\sum Fx  = 2(1/√2) + 4(1/√2)

\sum Fx = 6/√2

Magnitude = √(2/√2)²+6/√2)²

Magnitude = √4/2 + 36/2

Magnitude = √2+18

Magnitude = √20

Magnitude = 2√5

Hence the magnitude of their sum is 2√5

Answer:

2√5

Step-by-step explanation:

Answer:

Step-by-step explanation:

Add 9 to both sides

2x = -22

Divide both sides by 2

x = -11

Answer:

D. 15

Step-by-step explanation:

Day   Thomas   Brandon

1              T               B

2

3

4             T

5

6                              B

7             T

8

9

10            T

11                              B

12

13            T

14

15

16             T              B

17

18

19             T

20

21                              B

The next time they both mow their lawns on the same day is on day 16, which is 15 days from today.

Answer: D. 15

Answer:

104 I think

Step-by-step explanation:

8 x 14 divided by 2 is 56 so 6 x 8 = 48 and 48 + 56 = 104

Answer:

The volume of this triangular prism is equal to 336 [tex]feet^{3}[/tex]

Step-by-step explanation:

In order to solve this question, we need to know that the volume of a triangular prisim is equal to the area of the triangular base time the distance between the two triangular bases. And so we get...

[tex]V = (\frac{bh}{2})(d) = (\frac{(8)(14)}{2})(6) = (56)(6) = 336[/tex]

Therefore the area of this triangular prism is equal to 336 [tex]feet^{3}[/tex]

Answer:

52n + 130

Step-by-step explanation:

Distribute

26 (2n + 5)

52n + 130

Solution

52n + 130

Answer:

160 is 80% of 210.

Step-by-step explanation:

cause im smart

Answer:

The answer is 3525

Answer:

By fewer terms, I assume it means you can reduce each multiplication of 2 terms down to 1. Therefore I would say:

45+60-75.

otherwise, maybe it means give the full 1 answer of:

30.

I used PEMDAS. You simplify the multiplication terms first, then you do the addition and subtraction.