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
Murljashka [212]
2 years ago
7

X-2 Find the numerical value of 2x² - 7x - 15 when x=-2.

Mathematics
1 answer:
zimovet [89]2 years ago
4 0

Answer:

-21

Step-by-step explanation:

2^2 equals 4, multiplied by 2 is 8, subtracted from 7(2) equals -6, sutracted from 15 gives up -21

You might be interested in
Tessa threw 36 free throws at basketball practice. She sank 27 of them. What fraction of he free throws did Tessa sink?
zavuch27 [327]
She sank 27/36 which reduces to 3/4
3 0
3 years ago
Read 2 more answers
Please help me 7th math
alekssr [168]

Answer:

1/12

Step-by-step explanation:

4 0
2 years ago
Mabel is comparing the prices of two car rental companies. Company A charges $35 per day and an additional $15 as service charge
olga_2 [115]
The answer to the question

7 0
3 years ago
PLEASE HELO OK 1,3,4 ITS DUE TOMORROW
sukhopar [10]

#1. The number line goes by intervals of 0.2, so if A is equal to 7.28, then it’ll go in between the first line after 7 and the second line after 7. This is similar with B and C. B will go on the second line after 9, and C will go in between the second and third line after 10.

#3. You started out well. You combine your like terms on the sides of the equation to get 8x - 2 = 4x + 6. Then, you’ll subtract 4x to get 4x - 2 = 6. Add 2 to get 4x =8, then divide by 4 to get x = 2. On the other one, combine your terms to get -6 + 5y = 29. Then, add 6 so you have 5y = 35. Divide by 5 to get y = 7.

#4. When you classify a number, you need to classify it as whatever it is in your disgramdiagram, and the larger ones as well. For example, -2 is an integer, so it is also a rational number. 3/4 is a rational number. The square root of 2 over 2 is an irrational number. 292 is a counting, whole, integer, and rational number. -19/3 is a rational number. 6.9696... is an irrational number. (It has the three dots [...] so it’ll go on forever with no pattern.)

I hope this helps! Please tell me if you need any clarification. :)

3 0
3 years ago
Read 2 more answers
What is the mean absolute deviation of the data set? {12, 10, 10, 8, 6, 7, 7, 12}
Simora [160]

Answer:

The MAD of  {12, 10, 10, 8, 6, 7, 7, 12} is 2.

Step-by-step explanation:

<u><em>Step 1 : Add all the values Up:</em></u>

<u><em /></u>12+10+10+8+6+7+7+12=72

<u><em>Step 2 : Divide them by the number of items or numbers:</em></u>

<u><em></em></u>\frac{12+10+10+8+6+7+7+12}{8}=9<u><em></em></u>

<u><em></em></u>

<u><em>Step 3: Find the absolute deviations:</em></u>

<u><em></em></u>12-9=3\\10-9=1\\10-9=1\\9-8=1\\9-6=3\\9-7=2\\9-7=2\\12-9=3\\<u><em></em></u>

<u><em>Step 4: Add all the absolute deviations:</em></u>

3+1+1+1+3+2+2+3=16

<u><em>Step 5: Find the mean:</em></u>

\frac{3+1+1+1+3+2+2+3}{8}=2

7 0
3 years ago
Other questions:
  • A week before an election, 1,500 people were asked who they planned to vote for. Of the people asked, 45% said they planned to v
    11·1 answer
  • Please help as soon as possible ​
    15·1 answer
  • Plz answer me will mark as brainliest <br><br>solve - 3x + ( - 5y) - (-10) - 7x​
    6·1 answer
  • Taxi Fares are normally distributed with a mean fare of $22.27 and a standard deviation of $2.20.
    8·1 answer
  • Anyone wanna be egirl
    5·1 answer
  • 5,637 in two other forms
    13·1 answer
  • I NEED HELP PLEASE T-T
    8·2 answers
  • FACTORING POLYNOMIALS
    12·1 answer
  • Which is the quotient of 43.5÷3 ?<br><br> Which is the quotient of 24.6÷5 ?
    15·1 answer
  • What are the coordinates of the image of vertex G after
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!