1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
atroni [7]
2 years ago
10

Find (3a2 - 2a + 4) - (a2 - 3a + 7) .

Mathematics
1 answer:
melisa1 [442]2 years ago
6 0
<span>(3a^2 - 2a + 4) - (a^2 - 3a + 7) = (distribute the negative sign)
3a^2 - 2a +4 - a^2 + 3a - 7 = (add like terms)
2a^2 + a - 3
So, the answer is A!

</span>
You might be interested in
How do you graph y=2x+4 on a graph<br>​
NNADVOKAT [17]

Answer:

y =7 i think. idk im bad at math sorry. lol

7 0
3 years ago
How many solutions does the equation −6a + 6a + 5 = 8 have? One Two No solution Infinite solutions
umka21 [38]
<span>−6a + 6a + 5 = 8 
5 = 8  False

So, </span><span>No solution.</span>
5 0
3 years ago
We can describe 12x – 8 as an expression.
never [62]

Answer:4 and 3x-2 are roots of 12x-8.

Step-by-step explanation: Expression contains no equality sign

7 0
3 years ago
Square root of 87 to the nearest 10th
kogti [31]

Answer:

9.3

Step-by-step explanation:

Step 1: Calculate. We calculate the square root of 87 to be: √87 = 9.32737905308882.

Step 2: Reduce. 9.32.

Step 3: Round. Round 9.32 so you only have one digit after the decimal point to get the answer: 9.3.

3 0
3 years ago
Question 7
serg [7]

\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}

  • Given - <u>a </u><u>cone</u><u> </u><u>with </u><u>volume</u><u> </u><u>7</u><u>6</u><u>9</u><u>?</u><u>3</u><u> </u><u>ft³</u><u> </u><u>,</u><u> </u><u>having </u><u>a </u><u>height </u><u>of </u><u>1</u><u>5</u><u> </u><u>ft</u>

  • To calculate - <u>radius </u><u>of </u><u>the </u><u>cone</u>

We know that ,

\bold{Volume \: of \: cone =  \frac{1}{3}\pi \: r {}^{2}  h }\\

<u>substituting</u><u> </u><u>the </u><u>values </u><u>in </u><u>the </u><u>formula</u><u> </u><u>stated </u><u>above </u><u>,</u>

\bold{769.3 =  \frac{1}{3}  \times 3.14 \times r {}^{2}  \times 15} \\  \\\bold{\implies r {}^{2}  =  \frac{769.3 \times 3}{3.14 \times 15} } \\  \\\bold{\implies  r {}^{2}  =  \cancel\frac{2307.9}{47.1}}  \\  \\\bold{ \implies \: r {}^{2}  = 49} \\  \\ \bold{\implies \: r = 7 \: ft}

therefore ,

<u>radius </u><u>=</u><u> </u><u>7</u><u> </u><u>cm</u>

hope helpful ~

4 0
2 years ago
Other questions:
  • If it is possible...<br> What two numbers added is 4 and multiplied to be 7?
    11·2 answers
  • 4 55 x² - 17x+3/5<br>- factorise​
    9·1 answer
  • Choose the correct answer. A symbol that represents an unknown number that could take on a variety of possible values is _______
    14·1 answer
  • -x- y=-4<br> -2x+y=-5<br> How do you it for solving eliminating
    15·1 answer
  • Q # 15 please help me to resolve
    6·1 answer
  • 59.375 rounded to the nearest tenth
    14·2 answers
  • PLEASE HELP , should be pretty easy though
    8·2 answers
  • 4{x + 6} = 38 what is the value of x
    14·1 answer
  • 1. Jenna makes $96,000 per year working for an online e-magazine. Her company offers a 401K retirement plan in which they will m
    10·1 answer
  • What pattern do you see for numbers divisible by 5
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!