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
Brrunno [24]
3 years ago
14

Plz help ...........

Mathematics
1 answer:
bogdanovich [222]3 years ago
6 0

Step-by-step explanation:

Given c = longest of triange = 15m

Given b = short side of triangle = 9m

By pythagoras' Theorem,

{c}^{2}  =  {a}^{2}   +  {b}^{2}  \\  {a}^{2}  +  {b}^{2} =  {c}^{2}   \\  {a}^{2}  +  {(9)}^{2}  =  {(15)}^{2}  \\  {a}^{2}  + 81 = 225 \\  {a}^{2}  = 225 - 81 \\  {a}^{2}  = 144 \\ a =  \sqrt{144}  \\  = 12m

You might be interested in
What is the area of this figure?<br><br><br> 49.5 in²<br><br> 66.5 in²<br><br> 84 in²<br><br> 91 in²
Nookie1986 [14]
D 19 in2
find the area of a square, width times height
then find the area of the triangle, width times height divided by 2
6 0
3 years ago
Read 2 more answers
25 mice were involved in a biology experiment involving exposure to chemicals found in ciggarette smoke. 15 developed at least 1
MAVERICK [17]

based on the number of mice that took part in the experiment, the total number of mice that had at least one effect is 20 mice.

<h3>how many mice had a health effect?</h3>

15 mice had at least 1 tumor while 4 mice had both a tumor and respiratory failure.

the number of mice with just a tumor is:

= 15 - 4

= 11 mice

the number of mice with respiratory failure alone is:

= 9 - 4

= 5 mice

the mice that had at least one symptom is:

= 11 + 5 + 4 mice with both

= 20 mice

question is:

what are the number of mice with at least one effect?

find out more on effects of smoking at brainly.com/question/12135800.

#SPJ1

3 0
2 years ago
Marta hopes to have a test average of at least 90 by the end of the marking period. Her grades on the first four tests have been
Virty [35]

Answer:

 Marta need to score at least 94 to receive an average of 90 or higher considering all five tests.

Explanation:

 Marks received by Marta in four tests =  86, 84, 97 and 89

 Let mark received in fifth test be x

 We have average of five test is more than or equal to 90

 So we have

    \frac{86+84+97+89+x}{5} \geq 90\\ \\ 86+84+97+89+x\geq 450\\ \\ x\geq 94

 So Marta need to score at least 94 to receive an average of 90 or higher considering all five tests.

5 0
3 years ago
It’s a drop down menu
gogolik [260]
It’s the third one!!! 1/2x-2
4 0
3 years ago
Rectangle ABCD has vertices A(–6, –2), B(–3, –2),
dexar [7]

Answer:

The rule is ( x - 4, y + 3)

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • 8x^3-6x^2+13x-4<br> Please simplify this expression and tell me how u simplified it.
    10·1 answer
  • Whats the answer? I suck at gemomerty..
    13·1 answer
  • What is the mathematical notation for absolute value?​
    7·2 answers
  • X=3y+18<br> 5x+4y=-5 <br> Solve in substition equations
    6·1 answer
  • Please help!!!!!!!!!!
    13·1 answer
  • 8. Beatrice has 20 coins in quarters and nickels. The total value of her coins is $2.20. How many mickels and quartiers
    11·2 answers
  • How do i check if a inequality is all real number or no solution
    15·1 answer
  • Y= x^3-19x+30<br> State the number of complex zeros for each function
    15·1 answer
  • What is the true solution to In 20+ In 5= 2 In x?<br> x=5. A<br> X= 10 b<br> X=50 c<br> X= 100 d
    12·1 answer
  • Write the word sentence into an inequality: “A number is greater than 5.”
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!