All categories

3 years ago

Write the sum of 5x2+2x−10 and 2x2+6 as a polynomial in standard form.

Mathematics

1 answer:

rosijanka [135]3 years ago

7 0

Answer:

7x² + 2x - 4

General Formulas and Concepts:

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define

(5x² + 2x - 10) + (2x² + 6)

Step 2: Simplify

Combine like terms (x²): 7x² + 2x - 10 + 6
Combine like terms (Z): 7x² + 2x - 4

You might be interested in

Find the value of x in the triangle.

Pani-rosa [81]

Answer:

x=63°

Step-by-step explanation:

The sum of interior angles of a triangle is always equal to 180°

180-55-62=63

3 0

2 years ago

Read 2 more answers

Tara has a large box of dog treats that weighs 6.0 pounds. She uses the large box of dog treats to make smaller bags, each conta

pogonyaev

Answer:

10 bags

Step-by-step explanation:

Calculation for How many smaller bags of dog treats can Tara make

First step is to multiply 6.0 pounds and 0.6 pound by 10 in order to make them a whole number

6.0*10=60

0.6*10=6

Now let calculate How many smaller bags of dog treats can Tara make

Smaller bags of dog treats =60/6

Smaller bags of dog treats=10

Therefore the numbers of smaller bags of dog treats that Tara can make is 10 bags

8 0

3 years ago

If 28% of a sum is 100.80 what is the sum

Sveta_85 [38]

$360.00*.28= 100.80

Or do a portion 

28%/100%=100.8/x 

Then cross multiply 

10080=28x 

x=360

4 0

3 years ago

Find the equation of the line that passes thru (-1,-5) and is parallel to 3x+y=-5. Show work.

sertanlavr [38]

Answer:

$y=-3x-8$

Step-by-step explanation:

slope-intercept form:

$y=mx+b$

Start with the given equation, and to find the slope, convert it to slope-intercept form by solving for y.

$3x+y=-5$

In this case, all you need to do is subtract 3x from both sides.

$y=-3x-5$

Here, the slope is -3. The slope of a parallel line will also be -3.

Now, we have 3 known variables. We have the slope and the x and y of a known point. Use those 3 knowns to solve for the 1 unknown, the y-intercept.

$y=mx+b\\-5=(-3)(-1)+b\\-5=3+b\\-8=b\\b=-8$

Finally, with the slope and the y-intercept, you can write the equation of the line:

$y=-3x-8$

3 0

3 years ago

Complete the dilation centered at A with a scale factor of 1/2.

ElenaW [278]

Answer:

A'=(5/2,-5/2)

therefore A'(2.5,-2.5)

Step-by-step explanation:

8 0

3 years ago