All categories

3 years ago

Find a,b,and c for the answer

Mathematics

1 answer:

Svetach [21]3 years ago

3 0

Alright give me a second ok

You might be interested in

Guided Practice

levacccp [35]

I’m pretty sure the answer is A

7 0

3 years ago

Read 2 more answers

What are the solutions of -x^2+4x=x-4

Stolb23 [73]

Answer:

x = -1 and x = 4

Step-by-step explanation:

Step 1: Get everything to one side of the equation so it's set equal to zero..

-x² + 4x = x - 4 becomes...

-x² + 3x + 4 = 0 (subtract x and add 4 to both sides)

x² - 3x - 4 = 0 (divide both sides by -1, we want the x² term to be positive)

(x - 4)(x + 1) = 0 (factor)

x - 4 = 0, then x = 4

and

x + 1 = 0, then x = -1

8 0

3 years ago

Two cars leave at the same time from points A and B, the distance between them is 280 km. If the cars meet each other, they’ll m

kykrilka [37]

Set up the following equations:

$2x + 2y = 280$

$14x - 14y = 280$

x represents car A's speed, and y represents car B's speed.

We'll use elimination to solve this system of equations. Multiply the first equation by 7:

$(2x + 2y = 280) * 7 = 14x + 14y = 1960$

$14x - 14y = 280$

Combine both equations:

$28x = 2240$

Divide both sides by 28 to get x by itself:

$x = 80$

The speed of car A is 80 mph.

Since we now know the value of one of the variables, we can plug it into the first equation:

$2(80) + 2y = 280$

$160 + 2y = 280$

Subtract 160 from both sides.

$2y = 120$

Divide both sides by 2 to get y by itself:

$y = 60$

The speed of car B is 60 mph.

7 0

4 years ago

Write an expression in simplest form for the area of this shape.

Vitek1552 [10]

Answer:

$x-4+(x-3)x$ This is the answer, if you don't understand, you can ask

Step-by-step explanation:

4 0

3 years ago

After a lesson on exponents,Tia went home and told her mom,I've learned that 10 to the 4th power is the same as 40,000. She made

Burka [1]

10^1=10

10^2=100

10^3=1000

10^4=10,000

The power multiplies the number by itself the number of the power. When multiplying 10 to the power of any number, just make the number of 0's in the final number equal to the exponent.

10^34 will be a 1 with 34 zeros on the end.

7 0

3 years ago