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
Darya [45]
3 years ago
6

I have a geometry pre course test I need help

Mathematics
1 answer:
harkovskaia [24]3 years ago
6 0

Answer:

What do you need help with, comment

You might be interested in
What is an equation of the line that is perpendicular to -x+2y=4 and passes through the point (-2, 1)
Nana76 [90]

Answer:

Step-by-step explanation:

The equation of a straight line can be represented in the slope intercept form as

y = mx + c

Where

m = slope = (change in the value of y in the y axis) / (change in the value of x in the x axis)

The equation of the given line is

x + 2y = 4

2y = - x + 4

y = -x/2 + 4/2

y = - x/2 + 2

Comparing with the slope intercept form, slope = - 1/2

If two lines are perpendicular, it means that the slope of one line is the negative reciprocal of the slope of the given line.

Therefore, the slope of the line passing through (- 2, 1) is 2

To determine the intercept, we would substitute m = 2, x = - 2 and y = 1 into y = mx + c. It becomes

1 = 2 × - 2 + c = - 4 + c

c = 1 + 4 = 5

The equation becomes

y = 2x + 5

5 0
2 years ago
Diane got a prepaid debit card with $25 on it. For her first purchase with the card, she bought some bulk ribbon at a craft stor
lorasvet [3.4K]

Answer:

48

Step-by-step explanation:

you can do 25 minus 18.76 then you get 6.24 then divide that by .13 and you get 48

3 0
2 years ago
Read 2 more answers
Help please and sorry it’s not clear
aliina [53]

Answer:

C

Step-by-step explanation:

8 0
2 years ago
Suppose that circles R and S have a central angle measuring 80°. Additionally, the measure of the sector for circle R is
riadik2000 [5.3K]
The correct answer is B) 9 m.

The measure of the sector of circle R is 32π/9 m.  The measure of the central angle is 80°.  This means that the sector is 80/360 = 2/9 of the circle.  The area of a circle is given by A=πr², so the area of the sector is A=2/9πr².  To verify this, 2/9π(4²) = 2/9π(16) = 32π/9.

Using this same formula for circle S, we will work backward to find the radius:

18π = 2/9πr²

Multiply both sides by 9:
18*9π = 2πr²
162π = 2πr²

Divide both sides by 2π:
162π/2π = 2πr²/2π
81 = r²

Take the square root of both sides:
√81 = √r² 
9 = r

6 0
3 years ago
Read 2 more answers
BRAINLIEST TO BEST ANSWER!!!!
Thepotemich [5.8K]
The equation would be y = -(3/4)x+1
5 0
3 years ago
Other questions:
  • How do you solve the proportion 15/18=y/30
    7·1 answer
  • How long is each wire?
    10·1 answer
  • Halpp me please kind people
    10·1 answer
  • PLEASE HELP ASAP!! CORRECT ANSWER ONLY PLEASE!!
    10·2 answers
  • Please help asap 20 pts
    14·1 answer
  • Mt. Everest, the highst elevation in asia, is 29,035 feet above sea level. The Dead Sea, the lowest elevation, is 1,349 feet bel
    15·1 answer
  • Identify the level of measurement of the​ data, and explain what is wrong with the given calculation. In a​ survey, the favorite
    10·1 answer
  • Margarita traces a circle with a radius of 20 centimeters like the one shown below. She will color in the shaded region. What is
    13·1 answer
  • ILL GIVE U BRAINLISTTT!!!!!
    13·2 answers
  • Joe needs to get to his house, which is 106 miles away in 2 hours. How fast does he need to drive? 48 mph 104 mph 0.019 mph 53 m
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!