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
NNADVOKAT [17]
3 years ago
8

PLEASE ANSWER QUICKLY!!!!!!!!!!!

Mathematics
1 answer:
Nostrana [21]3 years ago
3 0

21

\frac{1}{2} height \: of \: trapezium(a + b) = area \: of \: trapezium

half the height is 3

a=7

b=x

3(7+x)=84

21+3x=84

place the like terms on one side

84-21=3x

63=3x

x=21

You might be interested in
Which statement about the angle measures is true?
sattari [20]

Answer:

Option (4)

Step-by-step explanation:

By the property of exterior angle of a triangle,

"Exterior angle of a triangle is equal to the sum of two opposite interior angles."

In the triangle ABC,

∠ACD is an exterior angle and ∠BAC and ∠ABC are the opposite interior angles.

m∠ACD = m∠BAC + m∠ABC

95° = m∠BAC + m∠ABC

Therefore, Option (4) will be the correct option.

5 0
3 years ago
Find the value of the expression m − 4.6 for m = 7.
stich3 [128]

Answer:

2.4

Step-by-step explanation:

If you replace m with 7, the expression is now 7-4.6.

7-4.6=2.4

The value of the expression is 2.4.

-hope it helps

3 0
3 years ago
Will mark Brainliest
Ivahew [28]

Answer:

57.39

[tex]440 \: ( 1 + \frac{5t}{46 + \: {t}^{2} } ) \\ 440 \: ( \frac{6t}{46 {t}^{2} } ) \: ( \: multiply \: 440 \times 6t) \\ \frac{2640}{46} \\ = 57.39 or 57.30

8 0
2 years ago
The figure below shows three quadrilaterals on a coordinate grid:
Hatshy [7]

Answer:

im just commenting to get points

Step-by-step explanation:

3 0
3 years ago
Hurry i need help plzzzz
koban [17]

Answer:

D. y = -x

Step-by-step explanation:

Hope this helps.

Brainliest...??

6 0
3 years ago
Other questions:
  • A virus has infected 400 people in the town and is spreading to 25% more people each day. Write an exponential function to model
    9·1 answer
  • What are the two solutions of x2 – 2x – 4 = –3x + 9?
    6·2 answers
  • Erica sells magazine subscriptions and makes a flat rate of $5.35 for each subscription she sells. If Erica made $42.80 on Monda
    5·2 answers
  • A plumber charges a flat fee for each job, plus an hourly rate for the number of hours the job takes to complete. The total cost
    14·1 answer
  • Round each number to the nearest tenth.
    10·2 answers
  • 20.83 as a mixed number
    8·1 answer
  • Marcia has a sunflower garden. The plants are currently 36 inches tall and are growing at a rate of 4 inches each week. Write an
    10·1 answer
  • Help
    6·2 answers
  • What is the range shown in the scatter plot
    10·1 answer
  • Can someone please help?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!