MATHEMATICS HIGH SCHOOL

Directions. Convert the equations from standard from slope-intercept form.
5. 2x-y = -7

Answers

Answer 1
Answer:

Answer:

y=2x+7

Step-by-step explanation:

2x-y=-7\n\n2x-2x-y=-7-2x\n\n-y=-7-2x\n\n(-y=-7-2x)/(-1)\n\n y=7+2x\n\n\boxed{y=2x+7}

Hope this helps.

Related Questions

Henry is four times older than James. Next year, Henry will be three times older than James will be. How old are Henry and James now?a. James is 3 years old; Henry is 4 years old.b. Henry is 4 years old; James is 3 years old.c. James is 2 years old; Henry is 8 years old.d. James is 8 years old; Henry is 8 years old.
13 squared? how does it mean and what is the solution?
PLEASE HELP!!!!!40 POINTS!!!!!!
Colby and Jaquan are growing bacteria in an experiment in a laboratory. Colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. Jaquan has a different type of bacteria that doubles every 3 hours. How many bacteria should Jaquan start with so that they have the same amount at the end of the day?
What is the 44th decimal digit in the decimal representation of 1/11?

A circle is inscribed in an equilateral triangle. A point in the figure is selected at random. Find the probability that the point will be in the part that is NOT shaded. A. About 25%
B. About 40%
C. About 60%
D. About 50%

Answers

If r is the radius of the circle, then the side length of the triangle is 2r\sqrt3.

The area of the circle is \pi r^2, while the area of the triangle is 3r^2\sqrt3.

So, the probability of selecting a random point in the white space is

1-(\pi r^2)/(3r^2\sqrt3)=1-(\pi)/(3\sqrt3)\approx0.395\approx40\%

Answer:

about 60%

Step-by-step explanation:

just took the test

A marine biologist collects data on the length of rainbow trout on a protected western river. She finds that the length of adult trout in her study are approximately normally distributed with mean 14 inches. She also reports that the minimum length was 10 inches and the maximum was 18 inches. Based on this information what is the most likely value of the standard deviation?

Answers

Answer:

The standard deviation of the data is 2 inches.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 14

We are given that the distribution of  length of adult trout is a bell shaped distribution that is a normal distribution.

Minimum length = 10 inches

Maximum length = 18 inches

Range

= Maximum length - Minimum length = 18 - 10 = 8

Thumb Rule of Standard Deviation:

  • The Range Rule of Thumb says that the range is about four times the standard deviation.
  • \text{Range} = 4* \text{Standard Deviation}
  • The standard deviation tells us how data is clustered around the mean.

Thus, by thumb rule, we get,

\text{Standard Deviation} = \displaystyle\frac{\text{Range}}{4} = (8)/(4) = 2

Thus, the standard deviation of the data is 2 inches.

Simplify.
3
(-4a64)
Write your answer without parentheses.

Answers

Answer:

64w2.

Step-by-step explanation:

Purchase computer of 30000​

Answers

Answer:

particular debit credit

Purchase A/C Dr 30000

To cash A/C 30000

Ben takes a random sample of 25 students in his seventh grade class and finds that 85% of the sample prefers math over science.there are 150 students in the seventh grade.based on the sample proportion,about how many students in the seventh grade would be expected to prefer math over science

Answers

Answer:

The  number of students in the seventh grade who would be expected to prefer math over science are:

                              128

Step-by-step explanation:

Total number of students in seventh grade are: 150 students.

Now he took a sample of 25 students and find that the 85% of the sample prefers math over science.

This means that out of the sample the number of students who prefer maths over science is:

=(85)/(100)* 25\n\n\n=(85)/(4)\n\n\n=21.25\ students

Now, out of the total seventh graders the number of students who prefer math over science is:

     =(21.25* 150)/(25)\n\n\n=127.5

which is approximately equal to 128.

                Hence, the answer is:

                   128 students
Part 1 : Ben takes a random sample of 25 students in his seventh-grade class and finds that 85% of the sample prefers math over science. There are 150 students in the seventh grade. Based on the sample proportion, about how many students in the seventh grade would be expected to prefer math over science? 

Option 1 : 25

Option 2 : 85

Option 3 :150

Option 4 :128

Solutions - Convert the percent into decimal and multiply. 

85% of 150 = 0.85 * 150 

= 127.5 which is rounded to 128 

Find the perimeter and area of a rectangle of cardboard measuring 9.3 cm by 10.6 cm Perimeter: cm Area: cm2

Answers

Answer:

  • The area of the rectangle is 98.58cm^2
  • Perimeter is 39.8 cm.

Step-by-step explanation:

Given:

Width of the rectangle =9.3 cm

Length   of the rectangle = 10.6 cm

To find:

Perimeter of the rectangle=?

Area of the rectangle=?

Solution:

We know that,

Area of rectangle = length x breadth  

Area of rectangle = 9.3 x 10.6  

Area of rectangle = 98.58  

Now,

Perimeter of rectangle = 2(length + width)

Perimeter of rectangle = 2(10.6 + 9.3)

Perimeter of rectangle = 2 x 19.9

Perimeter of rectangle = 39.8
Perimeter: 18.6cm

Area: 98.58cm2


Hope it helps!
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