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
Papessa [141]
3 years ago
8

Please help me answer this

Mathematics
1 answer:
Tanya [424]3 years ago
8 0

9514 1404 393

Answer:

  A.  9

Step-by-step explanation:

The exterior angle is equal to the sum of the remote interior angles.

  10x -19 = (3x +2) +(5x -3)

  2x = 18 . . . . . . . . . . . . . . . add 19-8x to both sides, simplfy

  x = 9 . . . . . . . . . . . divide by 2

You might be interested in
if alpha and beta are zeroes of the quadratic polynomial f(x) = x2-x-2 then find a polynomial whose zeroes are 2alpha + 1 and 2b
frosja888 [35]

Answer:

Step-by-step explanation:

Hello, as alpha and beta are zeroes of

x^2-x-2

it means that their sum is alpha+beta=1 and their product alpha*beta=-2.

The polynomial whose zeroes are 2 alpha + 1 and 2 beta + 1, means that the sum of its zeroes is 2(alpha+beta)+2=2+2=4

and the product is (2alpha+1)(2beta+1)=4 alpha*beta + 2(alpha+beta) + 1 = 4 * (-2) + 2*(1) +1 = -8 + 2 + 1 = -5. so one of these polynomials is

\Large \boxed{\sf \bf \  \ x^2-4x-5 \ \ }

Thank you.

5 0
3 years ago
For every 1 litre of water used to make a medicine, 193ml of sucrose and 61ml of saline solution are used. Express the amount of
Brilliant_brown [7]
<h3>Answer is the ratio 1000:193:61</h3>

Explanation

1 liter = 1000 mL

For every 1000 mL of water, we need 193 mL of sucrose and 61 mL of saline solution.

The ratio is therefore 1000:193:61

We cannot simplify this ratio any further because the GCF of those three terms is 1.

A quick way to see this is to look at how 1000 = (2*5)^3 has prime factors 2 and 5, but 2 nor 5 are factors of 193 and 61. So only 1 is a factor of all three values 1000, 193, 61

7 0
3 years ago
Type the correct answer in each box. Spell all words correctly, and use numerals instead of words for numbers.
Natasha2012 [34]
<span>The missing angle measure in triangle ABC is 55°.

The measure of angle BAC in triangle ABC is equal to the measure of angle 
EDF in triangle DEF.

The measure of angle ABC in triangle ABC is equal to the measure of </span><span>angle EFD in triangle DEF.

Triangles ABC and DEF are similar by the angle-angle criterion. 
True </span>
5 0
3 years ago
Help Pleasss I will give brainlyest!!!! :D
Savatey [412]

Answer: The answer is 2,4. May I have the brainiest? pls I only need one more.

6 0
3 years ago
PLEASE HELP ME!!!!
VARVARA [1.3K]

Answer:

Step-by-step explanation:

MARK BRAINLIEST PLEASE ☺️☺️

First you multiply 20 by .15 and you get 3. Subtract 3 by 20 and you get 17. Now multiply $17 by 30 and you get 510. She spent $510 on 30 calculators

3 0
3 years ago
Other questions:
  • An item has a listed price of $40. If the sales tax rate is 4%, how much is the sales tax (in dollars)?
    11·2 answers
  • Find the LCM of the set of numbers 5 10 15 DUE TODAY
    9·2 answers
  • How to write 3 turnovers : 12assists as a fraction in simplest form
    11·1 answer
  • What are the solutions of the system?
    14·1 answer
  • Suppose the concentration of a certain pollutant is uniformly distributed in the range of 4 to 20 ppm (parts per million). if a
    14·1 answer
  • Jaime had $37 in his bank account on Sunday. The table shows his account activity for the next four days. What was the balance i
    15·2 answers
  • The cost to purchase a song from iTunes is $0.99 per song. To purchase a song from napster membership fee is $10. In addition, e
    8·1 answer
  • Passes through (-7, -4) parallel to y=1/2x+9
    6·1 answer
  • Can anyone help me with this? im timed :(
    9·1 answer
  • A teacher changed to grading from 50 points + 5 for each correct answer to 50 points + 7 for each correct answer. What would cha
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!