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
Anastasy [175]
3 years ago
15

Please look at the image

Mathematics
1 answer:
alina1380 [7]3 years ago
8 0

Answer:

r \geqslant  - 5

Step-by-step explanation:

50 - 4r \leqslant 70

- 4r \leqslant 20

\frac{ - 4r}{ - 4}  \geqslant  \frac{20}{ - 4}

r \geqslant  - 5

You might be interested in
The radius of a circle is 18 meters. What is the circle's area?
ankoles [38]

Answer:

200.96 sq. meters.

Step-by-step explanation:

The formula for the area of a circle is \pi r^(2). To solve for the area, use the given values, pi is 3.14 and the radius is 18. This gives you the new equation of (3.14)(18)^2. Solve algebraically, first raising the radius to the power of 2, and then multiplying.

5 0
2 years ago
Solve 15x+3y=9,10x+7y=-4
TiliK225 [7]

Answer:

x = 1, y = -2

Step-by-step explanation:

15x + 3y = 9 (1)

10x + 7y = -4 (2)

3 × (2) - 2 × (1)

3 × (2)

30x + 21y = -12 (3)

2 × (1)

30x + 6y = 18 (4)

(3) - (4)

15y = -30

y = -30 / 15

y = -2

sub y = -2 into (1)

15x + 3y = 9

15x + (3 × -2) = 9

15x - 6 = 9

15x = 9 + 6

15x = 15

x = 15 / 15

x = 1

4 0
3 years ago
(01.05 MC)The total charge on 6 particles is −48 units. All the particles have the same charge. What is the charge on each parti
Elina [12.6K]

Answer: -9 units

Step-by-step explanation:

-9 x 4 = -36

so therefore -36 divided by 4 = -9

5 0
3 years ago
HI I really need help with this its in the picture
Hitman42 [59]
<h3>Answer:  24a^4 + 36a^3 + 12a^2</h3>

Explanation:

The blue rectangle has area of 4a^2*6a^2 = 24a^4

The red rectangle has area 4a^2*9a = 36a^3

The green rectangle has area 4a^2*3 = 12a^2

The total area is 24a^4 + 36a^3 + 12a^2

7 0
2 years ago
A certain brand of dinnerware set comes in three colors: red, white, and blue. Twenty percent of customers order the red set, 45
denis23 [38]

Answer:

a) 0.20

b) 0.45

c) 0.65

d) Yes

e) Yes

f) Z = X + Y (except when X = 1 and Y = 1)

This is because the successes of X and Y are mutually exclusive events but their failures aren't. X and Y cannot both be 1.

Step-by-step explanation:

Probability of a red set = 20% = 0.20

Probability of a white set = 45% = 0.45

Probability of a blue set = 35% = 0.35

Probability of the single set being a red or white set = 20% + 45% = 65% = 0.65

P(X=1) = 0.20, P(X=0) = 1 - 0.2 = 0.80

P(Y=1) = 0.45, P(Y=0) = 1 - 0.45 = 0.55

P(Z=1) = 0.65, P(Z=0) = 1 - 0.65 = 0.35

a) pX = P(X=1) = 0.20

b) pY = P(Y=1) = 0.45

c) pZ = P(Z=1) = 0.65

d) Since only one order is being considered at a time, it isn't possible to order red & white set in a single set, hence, both X and Y cannot both be successes (equal to 1) at the same time. But they can both be failures (both equal to 0) if a blue set is ordered. The successes of X and Y are mutually exclusive events but their failures aren't

e) Is pZ = pX + pY

pX = 0.2, pY = 0.45, pZ = 0.65

Hence, this statement is correct!

f) Z = X + Y

Let's check all the probabilities

when X = 1 and Y = 1, Z = 1

1 ≠ 1 + 1

when X = 0 and Y = 1, Z = 1

1 = 0 + 1

when X = 1 and Y = 0, Z = 1

1 = 1 + 0

when X = 0 and Y = 0, Z = 0

0 = 0 + 0

Hence, Z = X + Y (except when X = 1 and Y = 1)

This is because the success of X and Y are mutually exclusive events but their failures aren't.

8 0
3 years ago
Other questions:
  • Each day Kim jogs from her home to the lake and then walks back again along the same route. Her average speed is 5m/s. And 2m/s
    10·1 answer
  • Negative 10.9p plus 3.9 equals negative 9.18.... what does p equal
    8·1 answer
  • What is the solution to the following system?​
    10·1 answer
  • Which of the following is the correct equation of a circle whose center has coordinates (1, 6) and radius = 4.
    14·2 answers
  • Consider the algebraic equation x+6=x+9. What values could we substitute for x to make it a true number sentence
    13·1 answer
  • Evaluate without using a calculator sin(90-x)cos(180-x)+tanx.cos(-x)sin(180+x)​
    13·1 answer
  • PLEASE PLEASE PLEASE HRLP ME Write the equation of a line in slope intercept form that has a slope of 2/9 and has a Y intercept
    8·2 answers
  • Terry deposits $500 in an account. The account earns 5% interest, compounded annually. He does not deposit or withdraw any other
    13·1 answer
  • Select the correct answer.
    6·2 answers
  • At the state fair, admission at the gate is 10. In addition, the cost of each ride is 4. Suppose that Josh will go on x rides. J
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!