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
irakobra [83]
3 years ago
10

Please help me i dony know how to do this

Mathematics
1 answer:
Ipatiy [6.2K]3 years ago
8 0
Substitute y = -2x + 4 into 7y = -14x +28

7y = -14x +28
7(-2x + 4)= -14x +28
-14x + 28 = -14x +28
0 = 0

answer
infinitely many solutions


You might be interested in
Find the vertex of the function h(x) = x2 – 4x – 21
lakkis [162]

Answer: (2, -25)

Step-by-step explanation:

The x coordinate of the vertex is x=-\frac{-4}{2(1)}=2.

When x=2, h(2)=2^2 - 4(2)-21=-25.

So, the vertex is (2, -25).

7 0
2 years ago
Suppose h(t) = -4t^2+ 11t + 3 is the height of a diver above the water (in
Bingel [31]
The diver will hit the water when the height is zero, so we will want to set our height function equal to zero
0 = -4t^2 + 11t + 3
we will then factor to find out value of t that make the function equal to zero
0 = (-4t - 1 ) ( t - 3 )
This means our function equals zero when t = -1/4 s and t = 3 seconds
Since time cannot be negative, our final solution is t = 3 seconds
4 0
2 years ago
Read 2 more answers
What does x equal to in the equation −7x>10
natita [175]

Answer:

Step-by-step explanation:

hello :

−7x>10

multiply by : -1   : 7x < -10

x< -10/7

5 0
3 years ago
Put as the answer a question your going to ask and then let me answer it and then mark brainlest please.
Anvisha [2.4K]

Answer:

Select all the expressions that equal -2 + 5.

A

-2 - (-5)

B

-2 - 5

C

5 - 2

D

5 + (-2)

Step-by-step explanation:

7 0
3 years ago
If Sin X equals .52" and cos X equals .85 what is cot X
Maslowich
Cot x = cos x / sin x = 0.85 / 0.52 =  1.6346
4 0
3 years ago
Other questions:
  • XY=11d\ YZ=9d-2\ \ xz=5a+22
    10·2 answers
  • Josh has eight pairs of white socks, two pairs of black socks, and one pair of blue socks. Write a fraction to represent the par
    5·2 answers
  • A graphic novel author spends 3 days writing for every 5 days she spends illustrating. If she spends 20 days illustrating, how m
    12·2 answers
  • Someone please help me
    13·1 answer
  • Going against the current, a boat takes 6 hours to make a 120-mile trip. When the boat travels with the current on the return tr
    13·2 answers
  • HELP! TIMED QUESTION!
    6·1 answer
  • What is the midpoint between -11 and 26 on the number line? 15 8.5 7.5 18.5
    15·1 answer
  • How do you know in what direction to shade on the line?Explain.
    8·1 answer
  • The ratio of girls to total students at the YMCA summer camp is 6 to 10. If there are 900 students at the YMCA summer camp last
    14·1 answer
  • Write the value of each expression in standard form. Expression Standard Forr 2hundres×10 in standard form​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!