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
Mekhanik [1.2K]
3 years ago
5

Can someone help me solve these three problems please??

Mathematics
1 answer:
Tasya [4]3 years ago
4 0
I'll solve 21, and you then should be able to solve the rest on your own!

Since ADC is 135, that means that that whole angle is 135 degrees. In addition, since angles ADB and BDC add up to ADC, we get ADB+BDC=ADC=135=11x+9+7x=18x+9. Subtracting 9 from both sides, we get 126=18x. Dividing both sides by 18, we get x=7. Plugging that into 11x+9=BDC, we get 11*7+9=77+9=86
You might be interested in
PLEASE HELP ASAP !!!!!!
ser-zykov [4K]

You should try to add 4 and place the 2 in the 3 digit slot

5 0
3 years ago
Choose the BEST estimate!
Novay_Z [31]

Answer:

About 300 dollars

Step-by-step explanation:

THe best estimate for week one is 300, because 96 rounds to 100, and 100 * 3 equals 300.

The best estimate for week 2 is 600, because 204 rounds to 200, and 200 * 3 equals 600.

600 - 300 = 300, therefore the difference is about 300 dollars.

Hope this helps!

4 0
3 years ago
Find the area of the rhombus 6cm, 8cm
Igoryamba

Answer:

A=24cm²

Step-by-step explanation:

Area=1/2(product of the diagonals)

A=1/2(6×8)

A=1/2(48)

divide by 2

A=24cm²

5 0
3 years ago
Please help asap 50 pts
gregori [183]
I believe the answer is C. It doesn't make sense to drop an object from -16 feet, and it doesn't make sense to have a -120 in the equation. It should be positive for it to come out right.
3 0
3 years ago
Read 2 more answers
What are the zeros of this polynomial and state their multiplicity at each <br> y=(x-5)(x+2)^2
N76 [4]

Answer:

C.

Step-by-step explanation:

The zeros of a polynomial are the x-intercepts of the function. To find them, we factor the polynomial and set each factor equal to 0.

This polynomial is already factored so set each to 0 and solve for x.

x-5=0\\x=5\\(x+2)^{2}=0 \\(x+2)=0\\x=-2

This means x=-2, 5. Each zero or root has a multiplicity - the number of times the factor occurs. This is also known as the exponent of the factor expression.

(x+5) occurs once since it has exponent 1.

(x+2)^{2} occurs twoce since it has exponent 2.

x=5 mult. 1, x=-2 mult. 2



7 0
3 years ago
Other questions:
  • Hanna has 3 apples. she slices each apple into eighths. How many 1/8 apple slices does she have?
    10·1 answer
  • Mario has received 16 unlabeled thumb-drives with ads on them. he has 8 gray drives which have the print ad, 4 pink drives which
    11·1 answer
  • Keisa borrowed $400 at a simple interest rate of 3% per year. How much interest will she owe in 18 months?
    8·2 answers
  • Answer ASAP for brainliest
    12·2 answers
  • If I have a right rectangular prism with a base area of 22 units and a height of 6 units, what is the volume of this prism?
    11·1 answer
  • Y varies jointly as a and b and inversely as the square root of c. Y= 18 when a = 2 , b=9, and c= 16. Find y when a=6, b=7, and
    12·1 answer
  • Helppppppppppp with 3 &amp; 4!!!!!!!!!!!!!!!!!!!!!!!
    14·1 answer
  • The team won 10 of its 30 games and lost the rest. What was the team's win-loss ratio?
    9·1 answer
  • 20+20 helpppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
    6·1 answer
  • D: Simplify 2x + 5 + x
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!