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
adell [148]
3 years ago
5

Question 1 options:

Mathematics
1 answer:
Whitepunk [10]3 years ago
6 0

Answer:

\frac{-1+/-3\sqrt{2} }{2}  where a = 1, b = 1,and c=-4

Step-by-step explanation:

To solve, use the quadratic formula. Using the quadratic formula, requires the standard form ax^2+bx+c Here a = 1, b = 1, and c = -4.

The quadratic formula is x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}.

Substitute and you'll have:

x=\frac{-b+/-\sqrt{b^2-4ac} }{2a} =\frac{-1+/-\sqrt{1^2-4(1)(-4)} }{2(1)}=\frac{-1+/-\sqrt{1+17} }{2)}

\frac{-1+/-\sqrt{18} }{2}=\frac{-1+/-3\sqrt{2} }{2}

You might be interested in
. How much of a 30% solution would you need to make 50 mL of a 2% solution?
Butoxors [25]

1.2mL will be needed to make 50 mL of a 2% solution

<h3>Ratio and proportions</h3>

Ratio are written in form of fractions.

If  50mL is required for a 2% solution, hence;

50% = 2mL

0.05 = 2mL

In order to determine the required mL for a 30% solution, we will have;

30% =x

0.03 = x

Find the ratios

0.5/0.3 = 2/x

Cross multiply

0.5x = 2(0.03)
0.5x = 0.6
x = 0.6/0.5

x = 1.2mL

Therefore 1.2mL will be needed to make 50 mL of a 2% solution

learn more on ratio and proportion here: brainly.com/question/12024093

#SPJ1

3 0
1 year ago
What was the approximate percent decrease in the price of her groceries due to the coupons?
vovangra [49]

Answer:

The approximate percent would be 25%

Step-by-step explanation:

3 0
3 years ago
If 60 of the 200 students are girls, then what percent of the students are girls?
OlgaM077 [116]
30%?
60/200=.3*100=30%
5 0
3 years ago
Read 2 more answers
Solve the equation for x.
Airida [17]

Answer:

D

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Help me. I need it lol
Salsk061 [2.6K]

Answer: Choice C

The probability of getting all heads is the same as the probability of getting all tails

=========================================================

Explanation:

H = heads

T = tails

In the first row, we have HHH to signify three heads. This shows up 1 time out of 8 outcomes total (each row is a different outcome). The probability of getting HHH is 1/8.

In the last row, TTT means we got three tails. Like with HHH, it only shows up once out of eight times, so the probability of getting TTT is 1/8 as well.

Therefore, both HHH and TTT have the same probability. This is because both sides of the coin have equal chances to land on. If the coin was more biased toward heads for example, then HHH and TTT would have different probabilities.

7 0
3 years ago
Other questions:
  • 9 + 3.5g = 11 - 0.5g
    9·2 answers
  • write a power represented with a positive base and a positive exponent whose value is less than the base
    15·1 answer
  • Two similar bottles are shown. the smaller bottle can hold 500ml. how much can the larger bottle hold. the smaller bottle is 15
    6·2 answers
  • Solve for x, y, and z. Please show all steps.
    15·1 answer
  • HELP PLEASE WITH 5 QUESTIONS!!!
    5·1 answer
  • The expression to represent the cost for Plan A is $40 + $0.80X
    13·1 answer
  • The domain (input values) of the sine function is:
    5·2 answers
  • help please, ive been cutting for a long time and i cant break the habit, no one will give me a straight answer. Ive lived a liv
    6·2 answers
  • WILL GIVE BRAINLIST IF RIGHT!
    12·2 answers
  • A map of a park has a scalar of 1 inch to 1,000 feet. Another map of the same park has a scale of 1 inch to 500 feet. Which map
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!