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
love history [14]
2 years ago
15

What is the solution to the system of equations below ?

Mathematics
1 answer:
adell [148]2 years ago
3 0
Your answer is C because 3 x 3 is 9 and 9 + 1 is 10 and 10 + 8 is 18
You might be interested in
Solve the quadratic equation x2+8x−30=0 by completing the square.
diamong [38]

Answer:

               \bold{x=-4\pm\sqrt{46}}

Step-by-step explanation:

(a+b)^2=a^2+2ab+b^2\\\\\\x^2+8x-30=0\\\\\underbrace{x^2+2\cdot x\cdot 4+4^2}-4^2-30=0\\\\{}\qquad(x+4)^2\,-\,16-30=0\\\\{}\qquad\ \ (x+4)^2=46\\\\ {}\qquad\ \ x+4=\pm\sqrt{46}\\\\ {}\qquad\ \ x=-4\pm\sqrt{46}

5 0
2 years ago
Slader records show that the average life expectancy of a pair of shoes is 2.2 years with astandard deviation of 1.7 years. A ma
Oksanka [162]

Answer:

For every 1000 pairs sold, the manufacturer expect to replace 239 pairs for free.

Step-by-step explanation:

Given:

Mean (μ) = 2.2, Standard deviation(S.D) (σ) = 1.7 years and x = 1 (1 year)

Let's find the Z score.

Z = \frac{x - mean}{S.D}

Now plug in the given values in the above formula, we get

Z = \frac{1 - 2.2}{1.7} = -0.71

Now we have to use the z-score table.

The z-score for 0.71 is 0.2611

Since it z is negative, so we subtract 0.2611 from 0.5000

0.5000 - 0.2611 = 0.2389

Percentage = 0.2389 × 100 = 23.89%

To find replaces for 1000 pairs, we need to multiply 23.89% by 1000

= \frac{23.89}{100} .1000 = 238.9

= 239

The cannot be in decimal, when we round off to the nearest whole, we get

239

3 0
3 years ago
What’s the answer???
azamat

Answer:

C = 6.28 in.

A = 3.14 in.^2

Step-by-step explanation:

C = (pi)d

C = 3.14 * 2 in.

C = 6.28 in.

A = (pi)r^2

r = d/2 = 2 in./2 = 1 in.

A = 3.14 * (1 in.^2)

A = 3.14 in.^2

7 0
2 years ago
Read 2 more answers
Helppp!!!! please!!!
Vitek1552 [10]

Answer:

d. 15 square yard

Step-by-step explanation:

area \: of \: shape \\  =  \frac{1}{2}  \times base \times height \\  \\  =  \frac{1}{2}  \times 10 \times 3 \\  \\  =  \frac{1}{2}  \times 30 \\  \\  = 15 \:  {yd}^{2}

4 0
3 years ago
Read 2 more answers
Solve for slope y intercept and the equation please ​
aliya0001 [1]

Answer:

y=x-5 slope=1 y-intercept=-5

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Solve the given inequality and graph the solution on a number line -x/2 + 3/2 < 5/2
    11·1 answer
  • 1. It takes Planet Netflix 24 hours to complete a full rotation. It takes Planet Hulu approximately 72 days, 16 hours, and 30 mi
    10·2 answers
  • Convert the equation from Standard Form to Slope Intercept Form. Show all of your work using inverse operations. 8x + 4y = 16, s
    6·1 answer
  • There are 36 students in a class. If 4/9 of the
    8·1 answer
  • Covert 3.92 into a mixed number in simplest from
    5·2 answers
  • What is 6/9 simplified?
    8·2 answers
  • What is the value of X when y=1
    7·1 answer
  • The measure of an exterior angle of a triangle is equal to the sum of the measure of the two ______ interior angles.
    12·1 answer
  • The graph of an exponential function passes through (1, 10) and (4, 80). Find the function that describes the graph.
    5·2 answers
  • GUYS PLS HELP IF I DONT PASS MY PARENTS ARE GONNA BEAT ME PLS HELP!!!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!