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
Andre45 [30]
3 years ago
12

Sorry, but I also need help on this

Mathematics
2 answers:
saul85 [17]3 years ago
8 0

Answer: A

Step-by-step explanation:

gladu [14]3 years ago
5 0

Answer:

It B ok

Step-by-step explanation:

You might be interested in
The maximum number of students in a classroom
Crazy boy [7]
10 students can join the class without exceeding the maximum
8 0
3 years ago
Read 2 more answers
Mrs. Nelson bought a 2-gallon container
Serjik [45]
128, because it’s actually 256 but 256/ 2= 128
5 0
2 years ago
Read 2 more answers
Two angles with measures (6x + 60) and (90) are supplementary. What is the value of x?
marshall27 [118]
Supplementary angles add up to 180, so 
6x+60+90 = 180 and solve for x
6x= 30
x=5
5 0
3 years ago
Read 2 more answers
Prove that for all integers a and b, if a mod 7 = 5 and b mod 7 = 6 then ab mod 7 = 2.
sergiy2304 [10]
Hello :
if : a <span>≡ 5 ( mod 7) ....(1)
     b </span><span>≡ 6 ( mod 7) ...(2)
(1)×(2) : ab </span><span>≡ 30 ( mod 7)
</span>but : 30 = 7×4  + 2  ..... so : 30  ≡ 2 ( mod 7)
then : ab ≡ 2 ( mod 7)
6 0
3 years ago
Approximate the zeros of the function. Round to the nearest tenth if necessary. f(x) = 4x^2 + 4x - 35. Explain each step on how
svet-max [94.6K]
4x²+4x-35=0
factor: (2x+7)(2x-5)=0
2x+7=0, or 2x-5=0
2x=-7 or 2x=5
x=-3.5 or x=2.5

I don't see any rounding necessary in this case. 

when you factor ax²+bx+c, you take the two factors of a and the two factors of c, one factor of a times one factor of c, the other factor of a times the other factors, the sum of the two products make b.
in this case, the factors of 4 is 2 and 2, the factors of -35 is -5 and 7. I line them up in the following way:
2    -5

2      7
then I multiple them diagonally, the top left 2 multiplying the bottom right 7=14, and the other 2 multiplying -5=-10, 14 and -10 make a sum of 4.

if you don't get the desired sum, switch the factors up and down till you have the right combination. Note: Do not switch left and right. 

I hope this makes sense to you.
8 0
3 years ago
Other questions:
  • A ____ is a solid consisting of a square, a point not in the same plane as the square, and all points between them. A) Square Py
    5·2 answers
  • How do you solve 15+b=23
    13·1 answer
  • PLEASE HELP THIS IS THE LAST QUESTION!!
    6·1 answer
  • Is 45/5 a equal mixed fraction
    6·2 answers
  • helP!!! 20 POINTS PLUS BRAINLIEST!!! An electrician cuts a 20 ft piece of wire into two pieces. One piece is 6ft longer then the
    8·2 answers
  • Why does a triangle have three sides if a pillow has four.
    12·2 answers
  • 3. Name the multiples in each of the following problems.
    8·2 answers
  • Solve for x<br><br> I tried 10 but it said that it was incorrect
    9·2 answers
  • Find the area of the shaded region in this figure.
    7·1 answer
  • A<br> 9<br> Kylie drives 291 miles in 6 hours.<br> (a) What is her average speed?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!