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
Julli [10]
3 years ago
14

The base of a triangle is 4 cm greater than the

Mathematics
1 answer:
Anna35 [415]3 years ago
4 0

Answer:

Step-by-step explanation:

Formula for area of a triangle:

Height x Base /2

Base (b) = h +4

Height = h

h + 4 x h /2 = 30cm

=> h +4 x h = 60

=> h+4h =60

=> 5h = 60

=> h = 12

Height = 12

Base = 12 +4 = 16

You might be interested in
5(3+t)-3(t+1) I don't understand how to do this problem.
shtirl [24]
Okay, just break it up so you're not overwhelming yourself or anything :)
So here, do it in steps-

Let's do 5(3 + t) first:
Distribute the 5, or in non-mathematical terms, just multiply 5 by 3 and t. This will give you 15 + 5t.

Now onto -3(t + 1):
Again, just multiply -3 by t and 1. This will come out to: -3t - 3.

*Note: the 3 is negative because it's "MINUS 3" in the original equation and remember that any number times a negative, if it isn't negative itself, will turn out to be negative.... (aka "-" x "-" = "+" | "+" x "+" = "+" | "-" x "+" = "-")*

ANYWAY
Now just put both answer together and you get:
15 + 5t -3t - 3. You can only add and minus the LIKETERMS (which are the things that are the same) - in this case, the liketerms are 15 and -3 ,,,, AND 5t and -3t.

15 - 3 = 12
5t - 3t = 2t

12 + 2t is your final answer. Hope that helps! :)
7 0
3 years ago
-5x - 3y + z=-4<br> -2x - 2y + 2z = 4<br> Z=x+5
Len [333]

Answer:{x,y,z} = {85/24,-1/6,25/24}

Step-by-step explanation:

3 0
3 years ago
If rain is falling at a rate of 1/4 inch per hour, how much rain would you expect after 6 hours?
serg [7]
I think its 1.5 but im not sure 100%

5 0
4 years ago
Read 2 more answers
help me... the angle pairs.. for example linear pair, vertical angles... that stuff.... I said that because last time I asked th
Cerrena [4.2K]
<h3>Answers: </h3>

Angle 1 and 3:  Vertical Angles

Angle 4 and 8: Corresponding Angles

Angles 4 and 6: Alternate Interior Angles

Angles 3 and 5: Alternate Interior Angles

Angles 7 and 8: Linear Pair

Angles 1 and 7: Alternate Exterior Angles

=================================================

Explanation:

Vertical angles are formed when you cross two lines to form an X shape. The vertical angles are opposite one another in this configuration.

Corresponding angles are ones that show up in the same corner of each four-corner crossing. In the case of angles 4 and 8, both are in the southwest corner of each four-corner crossing.

Alternate interior angles are angles in between parallel lines and on opposite sides of a transversal. Alternate exterior angles are similar, but they are outside the parallel lines.

A linear pair of angles are adjacent and supplementary (meaning they add to 180).

8 0
3 years ago
Please help and thank you
masya89 [10]

Answer:

B. 407

Step-by-step explanation:

equation: y= A(1- r/n)^nt

y=471(1-(.07/1))^1(2)

you should get 407.37 as your answer

3 0
3 years ago
Read 2 more answers
Other questions:
  • Please solve <br> 11x-99=201-x
    5·2 answers
  • HelPPPNPLEASE ALGEBRA 2 !!!
    9·1 answer
  • How do you write 25 times 40 = 1000
    11·2 answers
  • If you can buy 1⁄4 pizza for 5 dollars, how much can you purchase for 8 dollars? Write your answer as a fraction.
    10·1 answer
  • A roller coaster can load 60 passengers every 5 minutes. Complete the double number line to show how many people can be uploaded
    14·2 answers
  • 6+12x2-18 please answer
    9·1 answer
  • How to find the <br> value of 18.04 divided by 0.2
    15·1 answer
  • Which equation represents a nonlinear function?
    14·1 answer
  • Jeff had $20 he spent 1/5 of his money on lunch how much money does Jeff have left
    11·2 answers
  • Roster form {-2,-1,0,1,2,3} set builder form
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!