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
Eva8 [605]
3 years ago
13

Please help me thank you so much

Mathematics
1 answer:
avanturin [10]3 years ago
3 0
The answer is C.

Explanation:

(First, make sure the to finish solving the quadratic equation)
x^2 + 2x - 16 = 12x
x^2 - 10x - 16 = 0

(a, b and c are the coefficients of x^2, x and the constant respectively)
a = 1, b = -10, c = -16

(We can substitute this into the quadratic equation. +- means + or -)
x = [- b +- sqrt(b^2 - 4ac)]/2a
= [- (-10) +- sqrt(100 + 64)]/2
= [10 +- sqrt(164)]/2

(So C is the answer)
You might be interested in
Find all the missing elements:<br> B<br> 14<br> 15<br> 70°<br> A<br> b<br> с
photoshop1234 [79]

Answer:

B=48.7\\

c=61.3

b=12

Step-by-step explanation:

Using sines law for triangles,

\frac{15}{sinA} =\frac{14}{sinc} =\frac{b}{sinB} \\\\A= 70

⇒ \frac{15}{sin70} =\frac{14}{sinC} =\frac{b}{sinB}

⇒ \frac{15}{0.9397} =\frac{14}{sinC}=\frac{b}{sinB}

⇒ 15.9625=\frac{14}{sinC}

⇒ SinC=\frac{14}{15.9625}=0.8771

⇒ C=Sin^{-1}(0.8771)=61.29

⇒ C=61 ~ or ~ 61.30

\frac{b}{Sin B}=15.9625

Now sum of angles a Δ is 180°

A+B+C=180°

70+B+61=180

B=180-131=49~ or ~ 48.7

b=sin(48.70)(15.9625)=(0.7547)*(15.9625)= 12.0

╔════ ∘◦ ☆ ◦∘ ══════╗

       hope it helps..

      have a great day!!

╚═════ ∘◦ ❉ ◦∘ ═════╝

8 0
3 years ago
A and B are independent events if...
OlgaM077 [116]

Answer:

(C) The probability of buying bread and cheese is 0.12

Step-by-step explanation:

P(Event A) = 0.6

P(Event B) = 0.2

If Event A and Event B are independent,

Then P(Event A and Event B) = 0.6 x 0.2 = 0.12

7 0
3 years ago
Read 2 more answers
What is the simpalist form of the exprestion (3x^7/2)^6(x^2)^6
ICE Princess25 [194]
<span>(3x^7/2)^6(x^2)^6
= 3^6 x^21 x^12
= 729 x^33</span>
4 0
3 years ago
52,300,000 in scientific notation
Murrr4er [49]

Answer:

5.23 × 10 ^7

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the  10  If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

3 0
3 years ago
The recipe makes 1 serving of punch. Sam used 2 cups of pineapple juice to make her punch, how many servings did she make? Use t
Tems11 [23]

Answer: 3 servings

Step-by-step explanation:

Sam used 2 cups of pineapple juice, one serving just needs 2/3 cups of pineapple. 2 divided by 2/3 equals 3 so, Sam made three servings. (in this case 1/2 cup orange juice 3/4 cup Lemon/lime juice 1/3 cup Ginger ale does not matter, you only need to know the pineapple juice.

5 0
3 years ago
Other questions:
  • Which statements about the hyperbola are true? Check all that apply
    14·2 answers
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
    15·2 answers
  • Identify the polynomial. a ^2 + bcd ^3
    15·2 answers
  • What is another division problem that has a quotient of 3 and a remainder of 28???
    13·1 answer
  • Yanis fires pottery in a kiln. He decides to measure the rate of change of temperature of the pottery over time. What would be a
    14·2 answers
  • What is 350 of 1250 as a fraction
    7·2 answers
  • Please someone help me
    11·1 answer
  • What is the perimeter of rectangle TUVW?<br> Perimeter = ... Units
    8·1 answer
  • What is the slope of the line that passes through<br> the points (-8, 8) and (8, –5)?
    12·1 answer
  • What is the answer to <br> x^{2} + 2x + 15 = 0
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!