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
irinina [24]
2 years ago
14

Which set represents the zeros of the function f(x) = 7x2 – 28x + 21?

Mathematics
1 answer:
Fantom [35]2 years ago
6 0

Answer:

change f(x) to 0 than 7*2x=14x

0=14x-28x+21

0=-14x+21

-21=-14x

x=3/2

You might be interested in
Please help me thanks :)
Lina20 [59]

Answer:

A

Step-by-step explanation:

To sovle this we must combine the numbers togther and the variables togther.

We have:

8c+6-3c-2

Lets take out the c's and combine them:

8c -3c

=

5c

Now lets take out the numbers:

6-2

=

4

Now lets put these back together and we get the expression:

5c+4

This looks like A.

Hope this helps! :D

8 0
2 years ago
6/2 (1 + 2) ? What is the answer to this the answer choices are: 1, 6, 9, and 3
guapka [62]

Answer:

9

Step-by-step explanation:

6÷2(1+2)

(1+2)

3

6÷2×3

6÷2=

3

3×3

9

4 0
3 years ago
The price of a radio was $20 it's on sale for $15 what is the percent of change in the price of a radio
Ierofanga [76]
Your answer is 25% <span> of change in the price of a radio</span>
8 0
3 years ago
Read 2 more answers
Find the perimeter and area of the figure.
Jobisdone [24]
The area is 36 and the perimeter is 26
5 0
3 years ago
Read 2 more answers
5(y+2/5)=-13<br> what is y
jolli1 [7]

Answer:

y=11/5

Step-by-step explanation:

first divide by 5 on both sides

y+2/5=-13/5

subtract 2/5 on both sides to isolate the y

y=11/5

:))

8 0
2 years ago
Read 2 more answers
Other questions:
  • There are 5 girls and 5 boys in a chess club. The club holds a round-robin tournament in which every player plays against every
    10·1 answer
  • does anyone know how to do this. im dumb and need help please i will put 30points if someone actually helps
    7·1 answer
  • Find fog(x) when f(x) = 2x² + x and g(x) = 3x + 2
    13·1 answer
  • Lines m and n are cut by transversal l. Lines m and n are cut by transversal l. On line m where it intersects line l, 4 angles a
    5·2 answers
  • What is it in fraction form?
    8·2 answers
  • Matthew haa 18 sets of baseball cards each st has 12 cards about how many baseball card does matthew have
    6·1 answer
  • Line I is parallel to line m. If the measure of &lt;6 is 75 , what is the measure of &lt;1 ??
    11·1 answer
  • Martina is building a fence around her garden. For every 4 feet of fencing, the cost is $32.
    15·2 answers
  • Find the area of the figure
    14·1 answer
  • Help! This question is extremely confusing! WILL GIVE A LOT OF POINT!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!