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
erastova [34]
3 years ago
10

Using the discriminatory, determine the number of real solution 2x^2+7x-15=0

Mathematics
1 answer:
Scilla [17]3 years ago
6 0

Answer:

c. two real solutions

Step-by-step explanation:

x = -5 , x = 1.5

You might be interested in
Solve for x ax-bx/x+c = d, if a =/b+d
erica [24]

Answer:

dc/a-b-d

Step-by-step explanation:

ax – bx = d

x + c

Multiply both sides by x + c

ax – bx

(x + c) = d(x + c)

x + c

Simplify

ax – bx

(x+c): ax – bx

x + c

ax – bx = d(x+c)

Expand d(x+c): dx + cd

ax — bx = dx + cd

Subtract dx from both sides

ax – bx – dx = dx + cd – dx

Simplify

ax – bx – dx = cd

Factor ax – bx – dx: x(a – b – d)

x(a - b- d) = cd

Divide both sides by a – b – d; a + b + d

x(a – b - d) cd

a + b + d

a - b - d

a – b-d

Simplify

X =dc/a-b-d

7 0
3 years ago
Fred sold half of his comic books and then bought 9 more. He now has 13. How many did he begin with?
olga_2 [115]

Answer:

  8

Step-by-step explanation:

Before Fred bought 9 more, he had 4. Since 4 is half the number he started with, he started with 8 comic books.

3 0
3 years ago
Simplifying fractions Sheet 2<br>​
raketka [301]

<u>Simplifying fractions:</u>

1) \frac{14}{20} =\frac{7}{10}                  2) \frac{4}{8} =\frac{1}{2}

3) \frac{9}{12} =\frac{3}{4}                  4) \frac{12}{15} =\frac{4}{5}

5) \frac{8}{18} =\frac{4}{9}                  6) \frac{14}{21} =\frac{2}{3}

7) \frac{12}{16} =\frac{3}{4}                  8) \frac{10}{24} =\frac{5}{12}

9) \frac{15}{35}=\frac{3}{7}                 10) \frac{13}{26} =\frac{1}{2}

11) \frac{11}{55}=\frac{1}{5}                12) \frac{9}{21} =\frac{3}{7}

13) \frac{16}{26} =\frac{8}{13}              14) \frac{20}{32} =\frac{5}{8}

15) \frac{18}{24} =\frac{3}{4}               16) \frac{21}{27} =\frac{7}{9}

17) \frac{4}{32} =\frac{1}{8}               18) \frac{25}{40} =\frac{5}{8}

<em>Hope this helps :)</em>

5 0
3 years ago
Factor this expression. You will need to show your work for full credit. b^2-6b+8
Ostrovityanka [42]
B^2-6b+8 turns into b^2-2b-4b+8 due to the sum product pattern. which then turns into b(b-2) - 4(b-2) and then its (b-4)(b-2)
4 0
3 years ago
A bakery sells 5 apple muffins for every 2 bran muffins sold. which table shows this ratio ?
slavikrds [6]

Sorry but there is no table. The possible answers for a ratio of 5 appel muffins for ever 2 bran muffins is

5:2

5 to 2

5-2

Hope this helps

8 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose y varies directly with x. if y=-3 when x=5 find y when x=-1
    12·2 answers
  • The average number of pounds of red meat a person consumes each year is 196 with a standard deviation of 22 pounds (source: amer
    14·1 answer
  • Bertie needs 2 1/3 cups of flour for each pan of biscuits she bakes. She wants to bake 3 1/2 pans of biscuits.
    5·1 answer
  • (5h-4)-(h-5) combining like terms
    7·1 answer
  • What time is it 22 minutes before 4:00
    7·2 answers
  • Domino’s Pizza charges $5.99 per medium pizza and a $4 delivery fee. Which function best represents the total price depending on
    13·1 answer
  • Whats the value of number 3 in 6,035
    15·1 answer
  • Consider the following hypothesis test: H 0: 50 H a: &gt; 50 A sample of 50 is used and the population standard deviation is 6.
    10·1 answer
  • Please help ! <br><br> -9v-6+7v=6 <br> what is v?
    10·1 answer
  • Soybean meal is 18% protein. How many pounds each should be mixed together in order to get 360-lb mixture that is 17% protein?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!