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
dimulka [17.4K]
3 years ago
15

X2 + 4x - 21 = 0 quadratic formula

Mathematics
1 answer:
Elena-2011 [213]3 years ago
6 0

Answer:

0

Step-by-step explanation:

x2 +4x-21=0. solve for x

x =  \frac{7}{2}

x = 3 \frac{1}{2}  \ x = 3.5

You might be interested in
Find the volume, lateral area and<br>Total area of the room 5m long<br>4 m wide 3m height​
nika2105 [10]

Answer:

60 meaters

Step-by-step explanation:

5 meaters x 4 meater x 3 meaters = 60meaters

4 0
3 years ago
Kaitalin earns 6.50$ for each hour she works.on Friday she worked for 3 hours.she also worked on Saturday. If she earned a total
Romashka [77]

Answer:

5 hours

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Is a parallelogram a trapezoid always or not always?
Nina [5.8K]

Answer:

No, a trapezoid is not a parallelogram. A trapezoid is defined as having Exactly two parallel sides while a parallelogram has two pairs of parallel sides.

Step-by-step explanation:

4 0
3 years ago
Write an algebraic expression for: The sum of ten and a number.
meriva

Hi,

The sum of ten and a number.

Usually AND refers to adding, that's just the rules of math according to writing equation. Times would be multiplying, taking away is subtraction and divided by is dividing.


So if the question uses AND, it's adding.

A

4 0
3 years ago
I need Help. I will give brainliest/
Len [333]

Answer:

the answer is 48.

there is no any answer to hundred

Step-by-step explanation:

we know that,

area of parellelogram=base×height

base=8cm,height=6cm

so, 8×6=48

hope it helps

3 0
3 years ago
Read 2 more answers
Other questions:
  • You put $939 into an investment at 8% for six years. What will the balance be at the end of six years?
    14·2 answers
  • What is the end behavior of the function f(x)=23x3 ?
    11·1 answer
  • Help with 58 show work plz
    12·1 answer
  • *Need help asap* 25 points
    14·1 answer
  • The string of a kite is 100 meters long and it makes an angle of 60° with the ground. What is the height of the kite?
    12·1 answer
  • PLEASE HELP ILL DO ANYTHING
    10·2 answers
  • A store is having a 25% off sale on all shirts. Select all of the possible ways to calculate the sale price for a shirt that nor
    13·1 answer
  • The children's section is rectangular and has three of its corners at (-10,10), (-10,4), and (-3,10). What are the coordinates o
    6·2 answers
  • A
    11·1 answer
  • Jane made a poster that had a length: 1 2/3 of feet and a width: 5/6 of feet. What is the perimeter of her poster?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!