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
Eduardwww [97]
3 years ago
8

Solve using the quadratic formula. – 2^2 + 3x + 7 = 0

Mathematics
1 answer:
Phantasy [73]3 years ago
3 0

Answer:

x=−1

Step-by-step explanation

Step 1: Simplify both sides of the equation.

−22+3x+7=0

−4+3x+7=0

(3x)+(−4+7)=0(Combine Like Terms)

3x+3=0

3x+3=0

Step 2: Subtract 3 from both sides.

3x+3−3=0−3

3x=−3

Step 3: Divide both sides by 3.

3x

3

=

−3

3

x=−1

You might be interested in
In ΔVWX, v = 390 inches, w = 390 inches and x=500 inches. What is the sum of ∠Vand∠W?
Stolb23 [73]
The answer would be 390+ 390 =780
6 0
3 years ago
11x^3 + 15x^2 - 25x + 7 = 0​
IgorLugansk [536]

Answer:

x1 = −2.414

x2 = 0.414

x3 = 0.636

5 0
3 years ago
9th grade Algebra 1 help??
andriy [413]
3 eggs for brownies, 2 eggs for cookies. 

Because the total count went up 2 for one more batch of cookies, you know that 1C(ookies) = 2 eggs
3C = 6 eggs
15 - 6 = 9 eggs
3B(rownies) = 9 eggs
1B = 3 eggs
8 0
3 years ago
a sixth grade student brought three cans of tennis balls for $4 each sales tax for all three cans was $0.95 write an expression
JulijaS [17]

Answer:

An expression that would show how much the student paid is 3(4) + 0.95, which can be solved to be 12.95

Step-by-step explanation:

We know that we need to multiply the number of cans (3) by the price of the cans (4). We also know the sales tax for the total is 0.95, which can simply be added to the end.

8 0
3 years ago
The US postal service delivered 7.14 x 1010 pieces of mail in the month of December and 3.21 x 1010 in the month of January. Wha
Lelu [443]
D) 1.035*10^11 

Hope this helps
6 0
4 years ago
Read 2 more answers
Other questions:
  • What is the answer to 3c=-21?
    12·1 answer
  • This diagram shows a scale drawing for small amphitheater if the scale factor is 1 cm= 10m, what is the area of the actual amphi
    7·1 answer
  • A. When comparing the "# of Bacteria" each hour, what is the number being multiplied by each time? *
    11·2 answers
  • Rewrite the following expressions using the Additive Inverse Property -21-62, -78-(-8), 100-500
    15·1 answer
  • A bag contains 42 red marbles, 6 white marbles, and 8 gray marbles. You randomly pick out a marble, record its color, and put it
    13·2 answers
  • Slope -8 and y intercept 7
    8·1 answer
  • How many solutions does a triangle with side lengths a = 4, A = 112º and b =<br>9 have?​
    8·1 answer
  • If a line has a slope of 9/5. If one of the points on the line is (-10, -16), which could be another point?
    11·1 answer
  • If a1=6 and an=2an-1 then find the value of a4
    9·1 answer
  • Please help me!!!!!!!!
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!