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
monitta
2 years ago
14

Calculator What is the value of a?

Mathematics
2 answers:
Andrews [41]2 years ago
5 0

Answer:

15

Step-by-step explanation:

20^2 + x^2 = 25^2

= 400 + x^2 = 625

= x^2 = 225

= x = 15

Ede4ka [16]2 years ago
5 0

Answer:

15

Step-by-step explanation:

20^2 + x^2 = 25^2

= 400 + x^2 = 625

= x^2 = 225

= x = 15

You know what to do

You might be interested in
How far is 10% of a 2000 kilometer trip
aleksandrvk [35]
Answer:
10 2000
1x200=
200
5 0
3 years ago
The two sides of a triangular park enclosing the right angle
alina1380 [7]

Step-by-step explanation:

could you please mark me as the brainliest answer

7 0
3 years ago
Read 2 more answers
A motorboat travels 244 kilometers in 4 hours going upstream and 749 kilometers in 7 hours going downstream. What is the rate of
Kryger [21]

Answer:

Speed of Motorboat = 84 kmph

Speed of Current = 23 kmph

Step-by-step explanation:

Distance Equation is:

D = RT

Where

D is distance

R is rate

T is time

Downstream rate is rate of boat PLUS current

Upstream rate is rate of boat MINUS current

Let rate of boat be "x" and rate of current be "c".

From first statement, we can write:

244 = (x - c)(4)

From second statement, we can write:

749 = (x + c)(7)

The first equation becomes:

244 = 4x - 4c

The second equation becomes:

749 = 7x + 7c

Multiplying first equation by 7 , we have:

7 * [244 = 4x - 4c] = 1708 = 28x - 28c

Multiplying 2nd equation by 4, we have:

4 * [749 = 7x + 7c] = 2996 = 28x + 28c

Now we add up these equations (in bold):

1708 = 28x - 28c

2996 = 28x + 28c

----------------------------

4704 = 56x

x = 4704/56

x = 84

Now using this value and plugging in original equation, we can find "c":

244 = 4x - 4c

244 = 4(84) - 4c

244 = 336 - 4c

4c = 92

c = 92/4

c = 23

<u>Speed of Motorboat = 84 kmph</u>

<u>Speed of Current = 23 kmph</u>

6 0
3 years ago
At the start of 2014 Mike's car was worth ?12000.The value of the car decreased by 30% every year.Work out the valure of his car
Contact [7]

Answer:

$1200

Step-by-step explanation:

12,000*(-90%)

12,000*(.1)=1200

6 0
3 years ago
Read 2 more answers
Exponential Function:
vovangra [49]

Answer:

See below

Step-by-step explanation:

<em>On the graphs we see transformations of exponential functions</em>

<h3>Graphic 1 = Horizontal shift </h3>
  • f(x) = 2ˣ is the parent function
  • g(x) = 2ˣ⁺³ indicates shift to the left by 3 units
  • h(x) = 2ˣ⁻¹ indicates the shift to the right by 1 unit
<h3>Graphic 2 =Vertical shift</h3>
  • p(x) = (1/3)ˣ is the parent function
  • r(x) = (1/3)ˣ⁺³ indicates shift up by 3 units
  • q(x) = (1/3)ˣ⁻² indicates the shift down by 2 units

4 0
3 years ago
Other questions:
  • 32(6x + 4) find the value for x
    7·2 answers
  • molly had a ribbon that was 23 inches long she cut 7 inches off the ribbon how long is her ribbon now
    9·2 answers
  • Simplify the expression
    8·2 answers
  • What value of x is in the solution set of 2(3x – 1) = 4x – 6?<br><br> 0 -10<br> -5<br> -3<br> -1
    10·1 answer
  • Can someone tell me how to do this ?
    15·1 answer
  • Enter a positive common factor (other than 1) of 4 and 6
    14·2 answers
  • Bleacher seating for a concert on the fairgrounds consists of 6 sections. Each section seats 144 people. If 715 people attend th
    6·1 answer
  • Help me please i will mark brainliest if correct
    12·1 answer
  • 1 أعط ثلاثة أمجلة
    15·1 answer
  • Find 25% out of the 0.45 and round it to the nearest thousandths
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!