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
Ostrovityanka [42]
2 years ago
15

Find x if f(x)=2x+7 and f(x)=-1

Mathematics
1 answer:
Natalija [7]2 years ago
7 0

Answer:

x = -4

Step-by-step explanation:

~~~~~~f(x) = -1\\\\\implies 2x +7 = -1\\\\\implies 2x = -1 - 7\\\\\implies 2x = -8 \\\\\implies x = -\dfrac 82 \\\\\implies x = -4

You might be interested in
Help please asap tysm! 10 brainly points! Will mark brainliest if you put in a random answer you will be reported! Tysm! <3 N
Ivan

Answer:

The surface area of the prism is 276 in.²

If you are also looking for the volume of the prism, it is 280.

Step-by-step explanation:

It's hard to find the surface area and the volume of the prism if you're just looking at the net of the 3D shape. There are some unnecessary measurements that will definitely throw you off. I drew a sample prism so it's easier to solve. Check the linked image.

The formula in finding the surface area of a prism is SA = 2(wl + hl + hw), where w is for width, l is for length, and h is for height. The point of all of these calculations is to find the area of 3 different faces of the prism and then you add up all of the areas and multiply the sum by 2 to give you the surface area. Looks a lot but it's worth getting the answer right.

The formula in finding the volume of the prism is V = w * h * l, where w is for width, h is for height, and l is for length. Simple multiplication of 3 different sides and you'll get the volume. I hope this helps and if I am wrong please let me know! :D

7 0
3 years ago
Read 2 more answers
1248 buttons 8 contains how many buttons will go into each contain<br><img src="https://tex.z-dn.net/?f=1248%20%5Cdiv%208%20%3D%
Oksanka [162]

Answer:

156 buttons in each container

Step-by-step explanation:

\frac{1248}{8}  = 156

4 0
3 years ago
Read 2 more answers
Each of the 25 students in Mr. McDonald’s class sold 16 raffle tickets. If each ticket costs $15, how much money did Mr. McDonal
REY [17]
So do
25x16=400
this shows how many raffle tickets were sold all together
Then do 400x$15 =$6000
So all together they raised $6000
6 0
3 years ago
Read 2 more answers
Select the equation of the line that passes through the point (5, 7) and is perpendicular to the line x = 4.
Dmitry_Shevchenko [17]
Yes, I think the answer is y = 7. The line x = 4 runs vertical (because all of the points in that line have an x-value of 4) so any line that is perpendicular to it has to be horizontal. Any line that is horizontal is in the form y = (some number). In order for the new line to run through the point (5,7) it would have to have the same y-value as that point, which is 7. So the new line is y = 7. Hope this helps :) (P.S. try graphing them both if you need a visual.)
8 0
4 years ago
Read 2 more answers
Suppose a water tank in the shape of a right circular cylinder is thirty feet high and eight feet in diameter. a) How much sheet
Zanzabum

Answer:

755.98 ft^2

Step-by-step explanation:

Height of the Cylinder= 30 feet

Diameter = 8 feet

Radius= Diameter/2 = 8/2 = 4 feet

The Amount of Metal Sheet used in constructing the tank is the Total  Surface Area of the Tank.

Total Surface Area of a Cylinder =

=2\pi r(r+h)\\=2*\pi*4(4+30)\\=8*\pi*30=\\=240\pi\\=755.98 ft^2

5 0
3 years ago
Other questions:
  • Your friend is looking at laptops for college, and is comparing the different screen sizes. Use the diagram and formula below to
    11·2 answers
  • What factor is used to covert feet per minute into miles per minute
    8·1 answer
  • Solomon has read 1/3 of his book. He finishes the book by reading the same amount each night for 5 nights.
    5·1 answer
  • Y=3x-1 for x=-2,1,0,1
    15·1 answer
  • Tommy can paint a fence in 9 hours. If his friend Huck helps they can paint it in 1 hour. How fast could Huck paint the fence by
    8·1 answer
  • Find the area of the hexagon with a radius length of 4. Please write the answer in simplified radical form. Please help
    11·1 answer
  • What’s the mean,median,mode and range
    6·1 answer
  • What is the fifth term of the geometric sequence whose first three terms are 486, 162, and 54?
    8·1 answer
  • How do i turn this into a mixed number
    11·2 answers
  • The x-intercepts of cosine become what for the secant function?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!