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3 years ago

Match each equation to its solution.

Mathematics

2 answers:

nlexa [21]3 years ago

7 0

Answer:

i)x=6

ii) x=-7

iii) x=-5

Step-by-step explanation:

First take the no. to the other sides. Then divide, then u will get x

astra-53 [7]3 years ago

4 0

Good job you got it right! But others won’t be able to find it because you have a basic writing for it. Next time put the actual equations on so others can find it!

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Can some one tell me what do i do

motikmotik

answer:45 walnuts

since you multiply the number of cashews (6) by 9 to get 54, you have to multiply the number of walnuts (5) by 9 to get 45

5 0

3 years ago

Write the equation of a line with the given slope and the given point. y = ?

Sphinxa [80]

Answer:

y=12x−6

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

If f(x)=x^2+2x-3 and g(x)=x^2-9, find (f/g)(4) and (f+g)(4)

Likurg_2 [28]

Answer:

Part 1: Find (f/g)(4) = 3

Part 2: Find (f+g)(4) = 28

Step-by-step explanation:

Part 1: Find (f/g)(4):

(f/g)(4) means divide f function by g function and simplify it. Then plug in 4 into x of that simplified function.

Let's do this:

$\frac{x^2+2x-3}{x^2-9}\\=\frac{(x+3)(x-1)}{(x-3)(x+3)}\\=\frac{x-1}{x-3}$

Plugging in 4 into x gives us:

$\frac{x-1}{x-3}\\=\frac{4-1}{4-3}\\=\frac{3}{1}\\=3$

The answer is 3

Part 2: Find (f+g)(4):

(f+g)(4) means add f function and g function and simplify it. Then plug in 4 into x of that simplified function.

Let's do this:

$(x^2+2x-3)+(x^2-9)\\=2x^2+2x-12$

Plugging in 4 into x gives us:

$2x^2+2x-12\\=2(4)^2+2(4)-12\\=28$

The answer is 28

5 0

3 years ago

The school that Kathryn goes to is selling tickets to a spring musical. On the first day

Nitella [24]

Answer:

Senior citizen ticket = $4, student ticket = $6

Step-by-step explanation:

To do this, form a system of equations where x = the cost for a senior citizen ticket and y = the cost for a student ticket.

Since 12 senior citizen tickets and 14 students tickets cost $132, you get

12x + 14y = 132.

Since 12 senior citizen tickets and 10 students tickets cost $108, you get

12x + 10y = 108.

You can subtract those two equations, so

12x + 14y = 132

-(12x + 10y = 108)

and you get

4y = 24

divide both sides by 4

y = 6

substituting into the equation 12x + 10y = 108,

12x + 10(6) = 108

12x + 60 = 108

subtract 60 from both sides

12x = 48

divide both sides by 12

x = 4

A senior citizen ticket costs $4 and a student ticket costs $6.

3 0

3 years ago

What are the coordinates of the point (2, −3) after a counterclockwise rotation of 90° about the origin?

Katen [24]

Answer:

(2,-3) changes to (3,2)

A is correct.

Step-by-step explanation:

Given: The point (2, −3) after a counterclockwise rotation of 90° about the origin.

$R_{90\circ}(x,y)\rightarrow (-y,x)$

Rotation is counterclockwise about origin.

$(x,y)\rightarrow (-y,x)$

We are given coordinate

$(2,-3)\rightarrow (3,2)$

We can see in diagram also. Please see the attachment for rotation.

Hence, (2,-3) changes to (3,2)

5 0

3 years ago

Read 2 more answers