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
antoniya [11.8K]
3 years ago
7

For what value of a does the equation ax^2−3x−5=0 have 1 as one of its roots?

Mathematics
1 answer:
tester [92]3 years ago
6 0
First, rearrange the equation so you have just ax² on one side. This can be done by adding -3x and -5 on both sides of the equation:
ax²=3x+5
Now, substitute x for 1 and simplify:
a(1²)=(3×1)+5
1a=3+5
a=8
You can double check this by substituting a for 8 back into the original equation:
(8×1²)-(3×1)-5=0
8-3-5=0
You might be interested in
Multiply 8 times the square root of 3 by 9 times the square root of 27.
Viktor [21]
8√3 · 9√27
8 · 9 ·√3 · √27
72 · √81
72 · 9
648

The answer is 648. :)
6 0
3 years ago
Multiply and simplify. 6xy^3z⋅3x^2yx^2
klio [65]
It's letter c

multiply the coefficient then just add the degrees of each letter
4 0
3 years ago
26 out of the 65 magazines at the bookstore are women's magazines. What percentage of the magazines at the bookstore are women's
egoroff_w [7]

The fraction \frac{26}{64} represents the number of women's magazines out of all the other magazines at the book store.

To find what percent of the magazines are women's magazines, we can turn \frac{26}{64} into a percent.

To write a fraction as a percent in lowest terms, first remember that a percent is a ratio of a number to 100 so to write 26/64 as a percent, we need to find a fraction equivalent to 26/64 with 100 in the denominator. We can do this by setting up a proportion.

40% is the answer

IMAGE PROVIDED.

7 0
3 years ago
Write an equation of the line that passes through point (2,-4) and has the slope m= 1/2 <br> y =
iren2701 [21]

Answer:

tHe can discuss intelligently the current political affairs. Television is a machine that ought to be used intelligently. It is necessary to think intelligently before performing any action.

Step-by-step explanation:

5 0
2 years ago
Help plz anyone!?This thing is due 50 points anyone!?
ANTONII [103]

Answer:i dont know

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • The Godari family is planning to build a new patio in their backyard. They haven’t decided how big it will be, but they know the
    8·1 answer
  • 1+2=21<br>2+3=36<br>3+4=43<br>4+5=​
    10·2 answers
  • A bicycle has a listed price of 538.98 before tax. If the sales tax rate is 6.75%, find the total cost of the bicycle with sales
    9·1 answer
  • Pleasee helppp on math picture shown
    7·2 answers
  • What is the following simplified product? Assume x greater-than-or-equal-to 0
    8·2 answers
  • What is the area of a table with a lenth of 7 feet and a width of 9 feet?
    9·2 answers
  • A bag of candies contains 5 candies that are orange. The probability of reaching into the bag, taking 1 candy from the bag witho
    14·1 answer
  • Karen and bill collector coins Karen has x coins but Bill has eight coins fewer than three times the number of coins Karen has t
    12·1 answer
  • Help me with this pls AND PLS DONT DELETE THIS BECAUSE SOMEONE KEEPS DELETE MY QUESTIONS FOR NO REASONS PLZz help thanks :)
    5·2 answers
  • morgan wants to cover a brick in cloth to make a doorstop. the brick measures 8 inches, by 3 and a half inches how much cloth wi
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!