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
Sphinxa [80]
3 years ago
8

Please help me thanks please

Mathematics
1 answer:
MariettaO [177]3 years ago
6 0
Answer : 45 centimeters
Explanation: 756 = ((a+b)/2)h
756 = ((39+b)/2)18
756/18 = (39+b)/2
42= (39+b)/2
2(42) = 39 + b
84 = 39+b
84-39=b
45=b
You might be interested in
A large container holds 8 gallons of water. After 56 minutes the container only has 1 gallon of water left. At what rate is the
Korvikt [17]

Answer:

The rate at which water leaking is \frac{1}{8} gal/min.

Step-by-step explanation:

Given:

A large container holds 8 gallons of water.

After 56 minutes the container only has 1 gallon of water left.

Now, to find at what rate is the water leaking.

So, water leaked from the container = 8 gallons - 1 gallon = 7 gallons.

Time taken for leakage = 56 minutes.

<em>Now, to get the rate:</em>

\frac{Gallons\ of\ water\ leaked}{Time\ taken\ for\ leakage}

=\frac{7 gallons}{56 minutes}

=\frac{1 gallon}{8 minutes}

The rate = \frac{1}{8} gal/min.

Therefore, the rate at which water is leaking is \frac{1}{8} gal/min.

4 0
3 years ago
If 18 793is multiplied by 1000 then what is the product​
Yakvenalex [24]

Answer:

18793000

Step-by-step explanation:

5 0
2 years ago
Mark has a shipping business. If your package weighs 2 pounds or less, the shipping costs $4. If your package weighs more than 2
maks197457 [2]
<span>So far I have:

(1.25 + 1) </span><span>if </span>x<span> is in the interval</span><span> (-inf,7]
(2.25 +1) </span><span>if </span>x<span> is in the interval (7,13)</span><span>
(3.50+1+3) </span><span>if </span>x<span> is in the interval [13,inf)</span>
7 0
4 years ago
HELP pleasee and ty to whoever does!!
Margaret [11]
Answers:
26) 50 percent chance
27) 25 percent chance
28) About 25 times
29) About 20 times
6 0
3 years ago
A paddle boat can move at a speed of 2 ​km/h in still water. The boat is paddled 16 km downstream in a river in the same time it
MaRussiya [10]
<span>going downstream - 

t = 14/(2 + v) 

going upstream - 

t = 7/(2 - v) 

14/(2 + v) = 7/(2 - v) 

(2 + v)/2 = 2 - v 

v = 2/3km/h</span><span>
</span>
6 0
3 years ago
Other questions:
  • What is the reciprocal of 3 3/7
    8·2 answers
  • Can anyone help me answer 4 and 5? Plzz
    14·1 answer
  • PLEASE HELP PICTURE IS SHOWN
    8·1 answer
  • The midpoint of CD is M(7,5). One endpoint is C(6, 8). Find the coordinates of the other
    14·1 answer
  • A boy gets 560 marks out of 700. What is the percentage of his marks?​
    12·2 answers
  • I need help to start the problem.
    7·1 answer
  • 1) The cost of carpeting a floor with area 120 m² is Rs 3840. What is the cost of
    10·1 answer
  • Question 8 pls help me please
    5·2 answers
  • 5(2)^x=40 what is the value of x
    14·2 answers
  • Help me I need this withing 3 hours
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!