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2 years ago

13

Help!

bsmiddle" class="latex-formula">
Thanks!

2 answers:

Kruka [31]2 years ago

4 0

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

Here's the solution for You !

just combine the like terms :

$8r + 9 - 4r - 3r - 8r$

$- 7r + 9$

Harrizon [31]2 years ago

3 0

$\\ \sf\longmapsto 8r+9-4r-3r-8r$

$\\ \sf\longmapsto 8r-4r-3r-8r+9$

$\\ \sf\longmapsto -7r+9$

$\\ \sf\longmapsto 9-7r$

You might be interested in

Which of the following would be the most logical first step to solving this

NikAS [45]

Answer:

D is correct option

Step-by-step explanation:

The correct option is D.

The standard quadratic equation is ax²+bx+c=0

Where a and b are coefficients and c is constant.

It means that constant are on the L.H.S and there is 0 on the right hand side.

Therefore to make it a quadratic equation first of all you have to add 11 at both sides so that the R.H.S becomes 0.

The given equation is:

2x2-x+ 2 = -11

If we add 11 on both sides the equation will be:

2x2-x+ 2 +11= -11+11

2x^2-x+13=0

Thus the correct option is D

You can further solve it by applying quadratic formula....

8 0

2 years ago

Chelsey wants to join a fitness club. The fitness club charges an initial membership fee of $55 and a monthly fee of 19.50. she

Naddik [55]

Answer:

Chelsey can be a member of the fitness club for <u>10</u> months.

Step-by-step explanation:

Given:

Chelsey wants to join a fitness club.

The fitness club charges an initial membership fee of $55 and a monthly fee of $19.50.

She has $250 to spend on a membership at the fitness club.

Now, to find the number of months Chelsey can be a member of the fitness club.

Let the number of months Chelsey can be a member of the fitness club be $x.$

Monthly fee = $19.50.

Membership fee = $55.

Now, to get the number of months Chelsey can be a member of the fitness club we write and solve an equation:

$55+19.50(x)=250.$

$55+19.50\times x=250\\\\55+19.50x=250$

<em>Subtracting both sides by 55 we get:</em>

$19.50x=195$

<em>Dividing both sides by 19.50 we get:</em>

$x=10.$

Therefore, Chelsey can be a member of the fitness club for 10 months.

5 0

3 years ago

A 20 foot ladder leaning against a wall is used to reach a window that is 17 feet above the ground. How far from the wall is the

GarryVolchara [31]

The bottom of the ladder is 10.5 feet away from the wall

Step-by-step explanation:

The given scenario forms a right triangle.

Where

The length of ladder will be the hypotenuse

The wall on which the window is situated will ebt he perpendicular and

The distance between the foot of ladder and the wall will be the base

So,

Hypotenuse = H = 20 foot

Perpendicular = P = 17 feet

Base = B = ?

Using the Pythagoras theorem

$H^2=P^2+B^2\\(20)^2=(17)^2+B^2\\400=289+B^2\\400-289=B^2\\B^2=111\\Taking\ square\ root\ on\ both\ sides\\\sqrt{B^2}=\sqrt{111}\\B=10.53\\Rounding\ off\ to\ the\ nearest\ tenth\\B=10.5$

The bottom of the ladder is 10.5 feet away from the wall

Keywords: Triangle, Pythagoras Theorem

Learn more about Pythagoras theorem at:

#LearnwithBrainly

8 0

2 years ago

Solve for e E= mc2 m=3 c=6 what is the answer please

alina1380 [7]

E=mc^2 if m=3 and c=6

e=3(6^2)

e=3(36)

e=108

8 0

3 years ago

Read 2 more answers

It'd be great if someone could help me on this!

Sever21 [200]

Answer: 144 cubic feet

Step-by-step explanation:

Volume = base times height.

Base = 20 square feet

Height = 7.2 feet

Volume = 20 square feet * 7.2 feet = 144 cubic feet

6 0

2 years ago

Read 2 more answers