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
trasher [3.6K]
3 years ago
13

Please someone help i don’t understand

Mathematics
2 answers:
Bad White [126]3 years ago
8 0

see the attachment...........

patriot [66]3 years ago
3 0

Step-by-step explanation:

see the attachment...............

You might be interested in
2) If it is 12° outside and the temperature is going to -7° drop 19º. What will the new temperature be? ​
shutvik [7]

Answer:

69 degrees

Step-by-step explanation:

yeah

3 0
2 years ago
Please help!<br> Simplify the expression using order of operations:25 - 5 + 36/9 - 6(7)
fgiga [73]

Answer:

-18

Step-by-step explanation:

Follow these steps to get your answer!

Divide 36/9 and multiply -6(7)

25 - 5 + 4 - 42

Subtract 25-5

20 + 4 -42

Add 4 to 20.

24-42

Subtract 42 from 24.

-18

4 0
3 years ago
Read 2 more answers
Suppose that the functions r and s are defined for all real numbers x as follows.
mixas84 [53]
ANSWER

Given

r(x) = x - 1


and

s(x) = 3 {x}^{2}
ANSWER TO QUESTION 1

(r + s)(x) = r(x) + s(x)


(r + s)(x) = x - 1 + 3 {x}^{2}


(r + s)(x) =  3 {x}^{2}  + x - 1



ANSWER TO QUESTION 2



(r \times s)(x) = r(x) \times s(x)


(r \times s)(x) = (x - 1) \times 3 {x}^{2}


(r \times s)(x) = 3 {x}^{3}  - 3 {x}^{2}

ANSWER TO QUESTION 3

( r - s)(x) = r(x) - s(x)



( r - s)(x) = x - 1 - 3 {x}^{2}


( r - s)( - 3) =  (- 3) - 1 - 3 ({ - 3}^{2} )



( r - s)( - 3) =   - 4 - 3  \times 9



( r - s)( - 3) =   - 4 - 27 =  - 31

4 0
3 years ago
Adam is refinishing his basement. 30 ft by 50 ft are the dimensions of Adam's rectangular basement. How much tile would he need
miv72 [106K]

Answer:

Area of four walls is 3960 square feet.

Step-by-step explanation:

length, L = 30 ft

Width, W = 50 ft

height, H = 6 ft

The area of walls is

= 2 (L W + W H + H L)

= 2 (30 x 50 + 50 x 6 + 6 x 30)

= 2 (1500 + 300 + 180)

= 3960 square feet

4 0
3 years ago
PLEASE HELP ASAP SLOPES OF PARALLEL AND PERPENDICULAR LINES
Kamila [148]

1) Parallel lines have equal slopes.

We need to find the slope of the given line by solving for y.

5x - 15y = 30

-15y = -5x + 30

y = (1/3)x - 2

The slope of the given line is 1/3, so the slope of the parallel line is also 1/3.

2) Line 1 has slope 2/3.

Line 2 has slope 2/3.

3) Line 1 is a vertical line through x = 2. Line 2 is a horizontal line through y = -5. The lines are perpendicular.

4) The given line can is solved for y, so we can see its slope is -5/2. The slopes of perpendicular lines are negative reciprocals. The perpendicular line has slope 2/5. We have point (5, 0) which is (x1, y1) in the slope-point formula.

y - 0 = (2/5)(x - 5)

y = 2/5 x - 2

5) The given equation has slope -3. To find the negative reciprocal, write the slope as a fraction, flip it, and change the sign.

Slope of perpendicular line is 1/3.

3 0
3 years ago
Read 2 more answers
Other questions:
  • |-2y+5|=2|4y-1| The solutions are y= and y=
    11·1 answer
  • Help solve algebra 15a=6a-90
    13·1 answer
  • What is f(5) for the function f(x)=2x+8?
    15·2 answers
  • Which geometric figure contains exactly two perpendicular lines
    13·1 answer
  • Find the measure of angle x in the figure below: A triangle is shown. At the top vertex of the triangle is a horizontal line ali
    13·1 answer
  • In ΔGHI, the measure of ∠I=90°, the measure of ∠G=46°, and IG = 87 feet. Find the length of GH to the nearest tenth of a foot.
    9·2 answers
  • If 8, x, 18 form a geometric sequence , find a value for x
    6·2 answers
  • (a) Use the scale to change 40 kilometres to miles.
    15·1 answer
  • The actual depth of a lake is 15.8 meters.
    8·1 answer
  • 20 points!! Pls help
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!