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
alina1380 [7]
3 years ago
12

Please help 10 points and I will give you brainliest

Mathematics
2 answers:
IgorC [24]3 years ago
8 0

Answer:

-10

Step-by-step explanation:

5ab-4bc+8ab+9=

1) 5ab+8ab=13ab

2) 13ab-4bc=b(13a-4c)

3) b(13a-4c)+9= (-1)( 13×3-4×5)+9= -19+9= -10

Cloud [144]3 years ago
4 0

Step-by-step explanation:

here u go.

hope it helps you

You might be interested in
How can you use rates to compare the cost of two cereal boxes that are different sizes.
Anarel [89]
You subtract and devide i beleve. hope iu helped sorry if wrong.
8 0
3 years ago
What's the linear function that passes through (1,-6) and (-8,9)​
ioda

Answer:

x axis?

Step-by-step explanation:

3 0
3 years ago
Suppose that 65% of all registered voters in a certain area favor a waiting period before the purchase of a handgun. Among 225 r
Vedmedyk [2.9K]

Answer:

B

Step-by-step explanation:

225 x 0.65 = 135

7 0
3 years ago
4 of the 9 tiles in the floor pattern are white. What percent of the tiles are white?
choli [55]

Answer:

44.5%

Step-by-step explanation:

THis is because 4/9x100=44.5, which means that 44.5% of the tiles are white

7 0
3 years ago
If the area of a rectangle equals 30 cm² and the perimeter is equal to 26 cm. Find the length and width of the rectangle.​
Kamila [148]

Answer:

Length = 10 & width = 3

Step-by-step explanation:

Perimeter = Length + Length + Width + Width

26 = 2Length + 2 Width

26 = 2 ( Length + Width )

13 = Length + width

13 - Length = Width EQUATION 1

Area = Length X Width

30 = Length X ( 13 - Length )

30 = 13Length - Length ^2

Length ^2 - 13Length + 30 = 0

( Length - 3 )( Length - 10 )

Length = 3 or Length = 10

Therefore Length = 10

From equation 1

13 - Length = Width

13 - 10 = width

width = 3

8 0
2 years ago
Other questions:
  • A building has an entry the shape of a parabolic arch 84 ft high and 42 ft wide at the base, as shown below. A parabola opening
    8·2 answers
  • 1) 4x-7y=3<br> x-7y=-15<br><br> 2) 9x+8y=15<br> 9x+8y=30
    11·1 answer
  • If x and y are both positive, when is x-y negative?
    6·2 answers
  • In triangle abc, two angles add to be 91 degrees. The third side is 90 degrees. True or false
    9·2 answers
  • The book fair is this week, and there's a special deal for teachers. For every 5 hardcover
    13·1 answer
  • HELP IM TIMED it’s subtracting decimals
    15·2 answers
  • Help with 30 please I forget what supplementary and complementary mean
    10·1 answer
  • Sorry nvm i didnt mean to do this take free ponts :)
    8·2 answers
  • A rectangular swimming pool is 15 meters long, 11 1/2 meters wide, and 1 1/2 meters deep. What is its volume?
    13·1 answer
  • Find the range of the function represented by the list of ordered pairs below.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!