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
Alisiya [41]
3 years ago
15

The base of a triangle is 21 inches and the height is 12 inches which of these expressions correctly shows how to calculate the

area of a triangle
a (21 x 12) divided by 2
b ( 21 + 12) x 2
c (21 + 12) divided by 2
d ( 21 x 12) x 2
Mathematics
1 answer:
I am Lyosha [343]3 years ago
5 0

½ x 21 x 12=126

So the answer is a

You might be interested in
A snowboard originally costs $120, but it is on sale for 45% off. If a customer buying the snowboard has a coupon for $15.00 off
kotykmax [81]
51 dollars hope that helps
7 0
3 years ago
Read 2 more answers
Rewrite expression as a single power<img src="https://tex.z-dn.net/?f=6%5E%7B4%7D%2A%206%5E%7B4%7D" id="TexFormula1" title="6^{4
victus00 [196]

Answer:

6^8

Step-by-step explanation:

6^4 * 6^4

We know that a^b * a^c = a^( b+c)

6^(4+4)

6^8

5 0
3 years ago
Read 2 more answers
Write the inequality for the following: You have $25 to spend. You are going to spend $10 on a shirt and then purchase earrings
ArbitrLikvidat [17]
She purchased five pairs of earrings
3 0
3 years ago
Solve each equation.<br> 7) 18 =-2+a<br> 8) -7= m - 12<br> 9) -8(7 + 7n)=-336<br> 10) -140=-7(-4+36)
lesya692 [45]

Answer:

7) a= 20

8) m= 5

9)n = 5

10) b = 8

Step-by-step explanation:

7) 18+2=-2+2+a

>> 20 = a >> a = 20

18 + 2 = 20 so that isolates the variable leaving a = 20

8) -7+12 = m -12+12

>>> 5 = m >> m = 5

-7 + 12 = 5 so that again isolates the variable leaving m = 5

9) <u>-8(7</u> + <u>7n</u>) = -336

>> -56+56 + -56n = -336+56

>>> -56n/-56 = -280/-56

>>>> n = 5

use distributive property, cancel out necessary numbers, isolate the variable. leaving n = 5.

10) -140 = <u>-7(-4 </u>+ <u>3b)</u>

>>  -140 = 28 - 21b >> -140-28 = -21b +28-28 ( flipped the numbers)

>>>  -168/-21 = -21b /-21

>>>> 8 = b >> b =8

Hope it helps!

5 0
3 years ago
Find the area. 7cm,5cm,5cm,10cm,22cm, 20cm​
Fantom [35]

Answer:

770000

Step by step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • If a bag contains 4 blue marbles, 8 red marbles, and 2 green marbles, what is the probability of pickibg a marble that is nit gr
    9·1 answer
  • Triangle JKL was translated 12 units vertically and then reflected over the y-axis to create triangle J'K'L' What is the value o
    13·1 answer
  • A random sample of 4000 U.S. citizens yielded 2150 who are in favor of outlawing cheesing. Find the point estimate for estimatin
    7·1 answer
  • 5 x 4000 step by step for khan
    8·1 answer
  • How to evaluate -4+3/4 plzzzz!
    11·1 answer
  • there are 20 total students in Kim's class. 12 of the students are boys and 8 are girls. which of the following reqesents the pa
    7·1 answer
  • Which choices are equivalent to the fraction below? Check all that apply.
    12·2 answers
  • 7<br> Which fraction, decimal, or percent that is not equivalent to the others
    6·1 answer
  • 2 short questions<br> Please help
    14·2 answers
  • Add: -8x8+ (-3x8 + 3)
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!