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
Elena-2011 [213]
2 years ago
11

Please help me! I don’t have much longer till this assignment closes!

Mathematics
1 answer:
TEA [102]2 years ago
3 0

Answer:

Option D

Step-by-step explanation:

9x=7x+14

9x-7x=14

2x=14

x=7

You might be interested in
A certain university recently calculated the number of days that its students took to complete their master's degrees. It took 1
mixer [17]

Answer:

c) 700

Step-by-step explanation:

Add 800 and 600, and then divide by the number of number, or in this case, two. This should give you 700.

8 0
1 year ago
Helppp. How do we get the triangles together?
Darina [25.2K]

Answer:

You have to rotate/mirror

Step-by-step explanation:

4 0
2 years ago
In an article about the cost of health care, Money magazine reported that a visit to a hospital emergency room for something as
ASHA 777 [7]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following :

Assume a normal distribution :

Mean (m) = 328

Standard deviation (sd) = 92

To obtain Zscore :

Zscore = (x - m) / sd

What is the probability that the cost will be more than $500?

x = $500

Zscore = (500 - 328) / 92 = 172 / 92 = 1.869 = 1.87

1 - p(Z < 1.87) = 1 - 0.9693 = 0.0307

b. What is the probability that the cost will be less than $250?

x = $250

Zscore = (250 - 328) / 92 = - 78 / 92 = - 0.8478 = - 0.85

p(Z < - 0.85) = 0.1977

c. What is the probability that the cost will be between $300 and $400?

x = 300

Zscore = (300 - 328) / 92 = - 28/ 92 = -0.30

p(Z < - 0.3) = 0.3821

x = 400

Zscore = (400 - 328) / 92 = 72/ 92 = 0.783

p(Z < 0.783) = 0.7823

0.7823 - 0.3821 = 0.4002

d. If the cost to a patient is in the lower 8% of charges for this medical service, what was the cost of this patient’s emergency room visit?

Probability is lower 8%

P (Z < Zscore) = 0.08

Zscore of 0.08 corresponds to - 1.41 on the z table

Zscore = (x - m) / sd

-1.41 = (x - 328) / 92

-129.72 = x - 328

-129.72 + 328 = x

x = 198.28

4 0
3 years ago
Find the value of the variables, giving brief reasons for your answer:​
Pavlova-9 [17]

Answer:

a = 70°

b = 80°

Step-by-step explanation:

Angles on a straight line add up to 180°

⇒ a + 110 = 180

⇒ a = 180 - 110

⇒ a = 70°

The sum of the interior angles of a quadrilateral is 360°

⇒ a + b + 130 + 80 = 360

⇒ 70 + b + 130 + 80 = 360

⇒ b + 280 = 360

⇒ b = 360 - 280

⇒ b = 80°

3 0
2 years ago
Which situatioWhich situation does NOT describe a final value of 0?
kati45 [8]

Answer:

<em><u>A </u></em><em><u>.</u></em> A balloon rose to a height of 605 feet above the ground. It then dropped 500 feet and then dropped another 105 feet.

8 0
3 years ago
Other questions:
  • Emily and her children went into a grocery store and she bought $20.80 worth of bananas and peaches. Each banana costs $0.80 and
    7·1 answer
  • By what number would you multiply -3/8 (fraction) to get a product of 1?
    11·1 answer
  • triangle abc has 2 interior angles with measures of 102 and 43 which of the following could be the measure of an exterior angle
    14·2 answers
  • What is the slope of y = -1 + 3x?
    7·1 answer
  • If a family uses 3.5 gallons of milk per week, how much will his family need for four days?
    14·2 answers
  • A builder of modular homes would like to impress his potential customers with the variety of styles of his houses. For each hous
    10·1 answer
  • ASK YOUR TEACHER
    13·1 answer
  • The following formula gives the area of a circle, A, dependent on its radius, r.
    14·1 answer
  • How would you find the area of this figure?
    10·1 answer
  • Один острый угол прямоугольного треугольника равен 30".
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!