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
Sidana [21]
3 years ago
14

Need help : a^2-7a =0

Mathematics
1 answer:
Sladkaya [172]3 years ago
7 0

Answer:

a = 0 or a = -7

Step-by-step explanation:

We are going to solve this quadratic equation by factorizing.

a² - 7a = 0

a(a - 7) = 0

a = 0 or a - 7 = 0

a = 0 or a = -7

You might be interested in
If 4 bunnies can eat all the crops in a garden in 10 hours, how long will it take 5 bunnies to eat the same crops?
worty [1.4K]

Answer:

12.5 hours

Step-by-step explanation:

10 / 4 = 2.5

2.5 * 5 = 12.5

7 0
3 years ago
Read 2 more answers
Kite WXYZ is graphed on a coordinate plane. What is the approximate perimeter of the kite? Round to the nearest tenth. 10.6 unit
Archy [21]

<u>Answer-</u>

<em>Perimeter of the kite is </em><em>16.2 units</em>

<u>Solution-</u>

As WXYZ is a kite, so two disjoint pairs of consecutive sides are congruent, i.e WX=XY and WZ=ZY

So, perimeter of the kite WXYZ is,

=2(\overline{WX}+\overline{WZ})

And

\overline{WX}=\sqrt{(1-3)^2+(1-4)^2}=\sqrt{(-2)^2+(-3)^2}=\sqrt{4+9}=\sqrt{13}

\overline{WZ}=\sqrt{(1-3)^2+(1+3)^2}=\sqrt{(-2)^2+(4)^2}=\sqrt{4+16}=\sqrt{20}

So, perimeter will be,

P=2(\sqrt{13}+\sqrt{20})=16.15\approx 16.2\ units

4 0
2 years ago
Read 2 more answers
The lenght of a rectangle is 4 cm less than three times the width. the perimeter is 64 cm
dybincka [34]
Let the width be x cm.
Then length=3x-4 cm.
Its perimeter is 64 cm.
We know that perimeter of a rectangle= 2(length+width)
So,
2(3x-4+x)=64
6x-8+2x=64
6x+2x=64+8
8x=72
x=9
Therefore,
length=(3×9-4)cm=(27-4)cm=23 cm.
Width=9 cm.
5 0
2 years ago
Read 2 more answers
A certain university recently calculated the number of days that its students took to complete their master's degrees. It took 1
mixer [17]

Answer:

c) 700

Step-by-step explanation:

Add 800 and 600, and then divide by the number of number, or in this case, two. This should give you 700.

8 0
2 years ago
Of 5 Sarah, Fiona and David share £40 in a ratio 3:3:2. How much money does each person get?​
Olin [163]

Answer:

15

15

10

Step-by-step explanation:

3/8 x £40 = £15 for Sarah

3/8 x £40 = £15 for Fiona

2/8 x£40 = £10 for david

6 0
3 years ago
Read 2 more answers
Other questions:
  • A sweater is on sale for 20% off. A jacket is on sale for 15% off. The sale price for each item is $34.00. Which item cost more
    5·1 answer
  • The ordered pairs (2, -21) and (5, -45) are solutions to which of the following equations?
    11·1 answer
  • Find the equation of the line in slope-intercept form. Slope is 3/5 and (0, −2)
    5·2 answers
  • during a promotion bags of sweets contain 30% extra free. There are 65 sweets in a bag during the promotion. How many sweets are
    8·1 answer
  • Over time, the value of the property at 397 West Lake Street increased by 275%. If the initial value of the property was P, whic
    7·2 answers
  • Find the solution set of the following equations: <br><br>2y=2x+7<br><br>X=y+2
    14·1 answer
  • Write each number as a power of 2 <br>8​
    12·1 answer
  • Pls help this is a test <br><br> Find the difference
    6·2 answers
  • 23^0 is equal to<br> O 23<br> 1<br> 23
    12·2 answers
  • A quantity with an initial value of 620 grows continuously at a rate of 0.3% per second. What is the value of the quantity after
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!