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
malfutka [58]
3 years ago
5

I need help, i don’t understand

Mathematics
1 answer:
Leokris [45]3 years ago
6 0

Answer:

a = 14

Step-by-step explanation:

The consecutive angles in a parallelogram are supplementary, sum to 180°

a² - 10a + 7a + 26 = 180

a² - 3a + 26 = 180 ( subtract 180 from both sides )

a² - 3a - 154 = 0 ← in standard form

(a - 14)(a + 11) = 0 ← in factored form

Equate each factor to zero and solve for a

a - 14 = 0 ⇒ a = 14

a + 11 = 0 ⇒ a = - 11

Since a > 0 , then a = 14

You might be interested in
Help meeee please! This is so confusing
DedPeter [7]

Answer:

  9 3/4 . . . . (for the numbers shown)

Step-by-step explanation:

Each number in the table is the product of the number in the left margin and the number in the top margin:

  9 = 3·3

  3/4 = 3·1/4

The total of these numbers in the table is the Area value being asked for.

  9 + 3/4 = 9 3/4

_____

If there is more to the question that isn't shown, you will need to add those partial products to the total, too. We presume you know how to add fractions and mixed numbers.

7 0
3 years ago
Bob rode a bike at a constant rate of 5<br> mph.
Rufina [12.5K]

Dang he's slow. If he's always at 5 MPH he's probably dead and riding an electric bike. By the way whats the question cuz you wrote

"Bob rode a bike at a constant rate of 5

mph."

4 0
3 years ago
How many 1/3 cups are in 1 cup of flour?
kicyunya [14]

Answer:

3 1/3 cups.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Solve by completing the square:<br> x^2 + 3x - 9 = 0
tekilochka [14]

Answer:

Step-by-step explanation:

x^2 + 3x - 9 =0

By comparing with the equation ax^2+bx+c = 0,

we get,

a = 1, b=3, c = -9

we know the formula for x is,

x = (-b±√(b^2 - 4ac))/2a

x = (-3±√45)/2

x = (-3±3√5)/2

x = (-3+3√5)/2, (-3-3√5)/2

6 0
3 years ago
Read 2 more answers
Deion has 3/4 pound bag of dog treats. He will give his dog 1/8 of the treats after they play each day. How many days will the b
kirza4 [7]
3/4=6/8

1/8+1/8+1/8+1/8+1/8+1/8

=6(1/8)

=6/8

Answer: 6 days.
8 0
4 years ago
Other questions:
  • What is x^2 + 4x-3 =0 , solve by completing the square.
    14·1 answer
  • The band instructor at a local high school is timing his trumpet players to determine how long they can play a note without taki
    11·1 answer
  • Henry is putting money into a checking account. Let y represent the total amount of money in the account (in dollars). Let x rep
    9·1 answer
  • The polynomial expression (ax²+2)(x²-3x+1) - (12x⁴-36x³)
    6·1 answer
  • The sum of 14 and a number is equal to 18
    11·2 answers
  • The mean age of teachers at Davis senior high school is 43.6 years. If a hypothesis test is performed, how should you interpret
    11·1 answer
  • Why is -16 the leading coefficient in quadratic applications
    6·2 answers
  • Jessica earns 800 each month working a part time job. she wants to save a total of 2,400 for collage over a one- year period. wh
    12·1 answer
  • After a discount of 5%, the sale price of a game system is $106.78 What is the original price?
    10·1 answer
  • HELP ASAP PLEASE idjfjdjejf
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!