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3 years ago

When finding Area as a Sum can I combine like terms? Example: 1x^2+9x-4x-10

Mathematics

1 answer:

Stolb23 [73]3 years ago

4 0

Answer:

yes

Step-by-step explanation:

because it will be easier if the they are like terms

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Cards with the numbers 1 through 40 are placed in a box and thoroughly shuffled.

MrRa [10]

9/40 + 2/40 = 11/40

hope this helps

7 0

2 years ago

Billie solved the equation below by completing the square, but she got the incorrect solution. In which step did Billie first ma

Tanzania [10]

Answer:

step 2

Step-by-step explanation:

we have

$x^{2} +10x-49=0$ ---> given problem

step 1

Move the constant to the right side

$x^{2} +10x=49$

the step 1 is correct

step 2

Complete the square

$x^{2} +10x+5^2=49+5^2$

$x^{2} +10x+5^2=74$

<u><em>The step 2 is not correct</em></u>

step 3

Rewrite as perfect squares

$(x+5)^{2}=74$

step 4

take square root both sides

$x+5=\pm\sqrt{74}$

step 5

Find the values of x

$x=-5\pm\sqrt{74}$

$x=-5+\sqrt{74}$

$x=-5-\sqrt{74}$

5 0

3 years ago

Can someone help me

Roman55 [17]

Answer: D) Reflection across the y-axis; $270^{\circ}$ counterclockwise rotation about the origin

3 0

1 year ago

For a snack, sander ate a plum with 32 calories and several strawberries with 4 calories each. If the total number of calories i

muminat

Answer:

6 strawberries

You subtract 32 from 56, which gives you 24. Then, if one strawberry is 4 calories, you can eat 6 of them to gain 24 calories.

32 + 24 = 56 ... So one plum (32) and six strawberries (4+4+4+4+4+4) gives you 56 calories, which is the total. That's how you can check your work.

Answer: 6

4 0

3 years ago

How can I anwser this ?? help me

lana [24]

Exactly like the previous question you posted.

-3x² - 9x = 0

Divide each side of the equation by -3 :

x² + 3x = 0

Factor the left side:

x (x + 3) = 0

This is true if x=0 or if x=-3 .

8 0

2 years ago

Read 2 more answers