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
Vikentia [17]
4 years ago
7

How many solutions does the equation –2a + 2a + 7 = 8 have?

Mathematics
1 answer:
Ronch [10]4 years ago
5 0
First simplify this equation. 

By adding 2a plus (-2a), What do you get? 
You will get zero right? 

so we will be left with, 7=8. 
Now is it true that 7 equals 8? Nope right? so there are zero solutions 
You might be interested in
1 1/4mi = ft, can someone explain this to me
skelet666 [1.2K]
First off, we'll convert the mixed fraction to "improper" and check about, keeping in mind that, there are 5280 feet in 1mile.

\bf \stackrel{mixed}{1\frac{1}{4}~mi}\implies \cfrac{1\cdot 4+1}{4}\implies \stackrel{improper}{\cfrac{5}{4}~mi}\\\\
-------------------------------

\bf \begin{array}{ccll}
feet&miles\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
5280&1\\
f&\frac{5}{4}
\end{array}\implies \cfrac{5280}{f}=\cfrac{1}{\quad \frac{5}{4}\quad }\implies \cfrac{5280}{f}=\cfrac{\frac{1}{1}}{\quad \frac{5}{4}\quad }
\\\\\\
\cfrac{5280}{f}=\cfrac{1}{1}\cdot \cfrac{4}{5}\implies \cfrac{5280}{f}=\cfrac{4}{5}\implies \cfrac{5280\cdot 5}{4}=f\implies 6600=f
4 0
3 years ago
Which equation below would be perpendicular to the line y = 2?
nadya68 [22]
Answer:
A) y=1/5x
Step-by-step explanation:
Coz, the way you identify a perpendicular line is by looking for its negative reciprocal. The neagtive reciprocal of 5= 1/5
Now, to check the ans we can multiply the negative reciprocal by "m"
(m in y=mx+c or y=mx+b)
in this case the "m" is stated as 5, so all we need to do is 1/5*5 if the ans is 1 then your ans is right....and over here it is
So thats how you identify & check perpendicular lines!
3 0
3 years ago
Read 2 more answers
Find cos 0 , help asap
insens350 [35]

D.

Step-by-step explanation:

because cos0 = b/h

so cos0 = 8/15

3 0
2 years ago
Please help ASAP!!!!!!!!!!
Alexxandr [17]

Value of x is 10

Step-by-step explanation:

  • Step 1: Here, x is the hypotenuse of the right angled triangle. Use the trigonometric ratio cosine to find x.

cos 28° = adjacent side/hypotenuse = 11/x

⇒ x = 11/cos 28° = 11/-0.96 = -11.46 ≈ 10 (rounding off to nearest tenth)

6 0
4 years ago
Is 3/4 greater or less than 1/4
Ivahew [28]
3/4 is greater than 1/4! Imagine a cake with four slices in it, would you rather eat one slice out of four or three slices out of four? Three slices out of four is more than just one slice, and the more the cake the better~ Hope this helps! c:
3 0
4 years ago
Read 2 more answers
Other questions:
  • Factor the trinomial 10x^2 + 11x - 6
    5·1 answer
  • Find 12 +13 - (-9)+(-19.4) +3.3
    13·2 answers
  • Can someone please help me I’m stuck lol
    6·2 answers
  • The hypotenuse of a 45 -45 -90 triangle measures 18 cm.
    15·1 answer
  • Ross says he does not need grouping symbols in the expression that represents the problem
    6·1 answer
  • A solid oblique pyramid has a regular pentagonal base. The base has an edge length of 2.16 ft and an area of 8 ft2. Angle ACB me
    13·2 answers
  • 31/40 in simplest form
    8·1 answer
  • Find the x-intercept for the line represented by this equation 7x=2y-3 A. (-3/7,0) B.(0,-3/7) C.(3/2,0) D.(0,3/2)
    12·2 answers
  • Find the value of x in each case:
    13·2 answers
  • WILL GIVE BRAINLIEST
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!