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
denis23 [38]
3 years ago
11

Let f(x)=5x+2 find f(-6)

Mathematics
1 answer:
LuckyWell [14K]3 years ago
8 0

Answer:

-28

Step-by-step explanation:

Plugging in -6 as x we get 5(-6) + 2, which simplifies to -30 + 2 or -28.

You might be interested in
one tamk of gasoline has an octane rating of 140 and another tank of gasoline has an octane rating of 80. To obtain a mixture of
Zarrin [17]

Answer:

20 gallons were used from the tank with the octane rating of 80.

Step-by-step explanation:

Given : One tank of gasoline has an octane rating of 140 and another tank of gasoline has an octane rating of 80. To obtain a mixture of 60 gallons with an octane rating of 120.

To find : How many gallons should be used from the tank with the octane rating of 80?

Solution : Let x be the volume of gas whose octane rating is 140 and

y be the volume of gas whose octane rating is 80.

Then, we form the equation as:

(1) x\times140 + y\times80 = 60\times120

140x+80y = 7200

or  7x+4y = 360 .........[3]

(2) x + y = 60

Now multiply equation (2) by 4  

4x + 4y = 240 ...........[4]

Subtract (4) from (3)  

7x+4y-4x-4y=360-240

3x=120

x=\frac{120}{3}

x=40

Put x in equation [4] we get,

4(40) + 4y = 240

160 + 4y = 240

4y = 80

y=\frac{80}{4}

y=20

Therefore, x=40 and y=20

So, 20 gallons were used from the tank with the octane rating of 80.






7 0
3 years ago
Each child ticket for a ride costs $3, while each adult ticket costs $5. if the ride collected a total of $115, and 33 tickets w
yaroslaw [1]
There were 8 of the $5 and 25 $3
7 0
1 year ago
Please do questions 31-34 I need them ASAP in 2h
alekssr [168]

Answer:

31) 1.111

32) 1.5

33) 1.666

34) 2.266

35) 1.14285714286

36) 3.9

37) 3.333

5 0
3 years ago
Read 2 more answers
Which set of side lengths form a right triangle?
OLga [1]
I have taken the test and I can confirm that the answer is

B. 15 m, 20 m, and 25 m.

Have a fantastic day!
4 0
3 years ago
Read 2 more answers
Find the measure of angle A. This is for my math class, and I’ve been stuck on this for a while. Please help!
Kruka [31]

Answer:

20°

Step-by-step explanation:

The sum of angles in a ∆ = 180°

Therefore, (17x - 1) + (3x - 4) + 25 = 180

Use this expression to find the value of x, then find the measure of angle A.

17x - 1 + 3x - 4 + 25 = 180

17x + 3x - 1 - 4 + 25 = 180

20x + 20 = 180

Subtract 20 from both sides

20x + 20 - 20 = 180 - 20

20x = 160

Divide both sides by 20

\frac{20x} = \frac{160}{20}

x = 8

Find measure of angle A.

Angle A is given as 3x - 4

Plug in the value of x and solve

A = 3(8) - 4 = 24 - 4 = 20

8 0
3 years ago
Other questions:
  • Can someone please answer this ​
    13·2 answers
  • Are the ratios 6:5 and 5:6 equivalent
    12·1 answer
  • A bread recipe calls for 2 cups of wheat flour and 3 cups of white flour. How much flour does the recipe call for
    9·2 answers
  • Describe fully the single transformation that maps traingle a to triangle b
    6·2 answers
  • Find D
    6·2 answers
  • Which of the following functions has the steepest slope
    7·1 answer
  • 8x - 3y = -9 what is the slope-intercept form?
    11·2 answers
  • Giving brainless out get it right
    13·2 answers
  • What’s the volume of the figure below
    5·2 answers
  • Find the value of F (0)=
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!