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
ycow [4]
3 years ago
5

Which expression is a factor of 21x2 + 13x − 20?

Mathematics
1 answer:
seraphim [82]3 years ago
6 0
Answer: A............
You might be interested in
4t + 2 = 7t - 7<br><br> What is t?
jok3333 [9.3K]

To solve this question, we want to get t by itself, on one side. To do that, the first step is the get all terms with 't' on one side and all the constants (numbers) on the other side.

4t + 2 = 7 t - 7

Since the left side has a greater number of t, let's move all of the terms with t there.

4t - 4t + 2 = 7t - 4t - 7

2 = 3t - 7

Now we move the numbers

2 + 7 = 3t - 7 + 7

3t = 9

Now we get t by itself.

3/3t = 9/3

t = 3

4 0
3 years ago
Read 2 more answers
Find the magnitude of wx for w(-3 5 4) and x(9 5 3)
Hatshy [7]

Answer:  Magnitude of wx is \sqrt{145}

Step-by-step explanation:

Since we have given that

w(-3,5,4)=-3\hat{i}+5\hat{j}+4\hat{k}\\\\x(9,5,3)=9\hat{i}+5\hat{j}+3\hat{k}

Now, first we will find 'wx':

wx=Initial-Final\\\\wx=(9+3)\hat{i}+(5-5)\hat{j}+(3-4)\hat{k}\\\\wx=12\hat{i}-1\hat{k}

We need to find the "magnitude":

\mid wx\mid=\sqrt{12^2+1^2}=\sqrt{144+1}=\sqrt{145}

Hence, Magnitude of wx is \sqrt{145}

3 0
2 years ago
Read 2 more answers
What is the length of the support AB ?
butalik [34]
Divide by 1/2 then multiply both 7 and 45
7 0
3 years ago
Read 2 more answers
What is the area of a rectangular driveway measuring 20 feet long &amp; 15 feet wide​
Stels [109]

Answer:

2 x 20 + 2 x 15 = 40 + 30 = 70

Step-by-step explanation:

2x20=40

2x15=30

40+30=7

6 0
3 years ago
Read 2 more answers
Can anyone help mee!!!
Naddik [55]

Answer: I want to say 30 degrees you have to put the degree simble

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • The sum of three consecutive numbers is 144. What is the smallest of the three numbers ?
    8·2 answers
  • Please help!? I'm soooo confused? Please help as soon as possible. It's do soon! I would really appreciate it.
    15·1 answer
  • The sum of two numbers is 4 less than twice the larger. if the larger is deecreased by three times the smaller, the reesult is -
    10·1 answer
  • Over many years the buffalo population out west gradually disappeared. The most likely reason for this is
    14·2 answers
  • ...So...help please?
    9·2 answers
  • Use the given information to find the amount A in the account earning compound interest after 6 years when the principal is $350
    14·1 answer
  • What are 3 equivalent ratios for 3/5?
    13·2 answers
  • The circumference of the base of the cone is 8.5 inches. What is the volume of the cone in term of pi? Round to the nearest hund
    13·1 answer
  • (-412)+3=
    7·2 answers
  • 5. The points (2, 4) and (6,7) lie on a line. What is the slope of the line? A. 2 B. 1 C. 4/3 D. 3/4​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!