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
aniked [119]
3 years ago
15

PLS SHOW YOUR REASONING ASAP

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
7 0

Answer:

(assuming you are knowledge about Pythagoras theorem)

44.205

Step-by-step explanation:

draw the altitude line to the upper right corner and the lower left corner and you have 2 identical right triangles and a rectangle. If you solve the third side of the right triangles you get 1.685 (sqrt[7.2^2 - 7^2]).

now add up the areas of both triangles and the rectangle in the center whose base is 4.63 (subtract the 3rd side from 8)

you have

1.685(7) + 7(4.63)

You might be interested in
It take Anna 45 minutes to walk 2 1/2 miles to the park. At this rate, how many minutes should it take her to walk 3 miles?
san4es73 [151]
Anna walks 1 mile in 18 minutes. 18 x 2.5 = 45. if she walks 3 miles instead of 2.5, your only adding half of 18. so 45 + 9. Anna will walk 3 miles in 54 minutes. Hope that helped!
3 0
3 years ago
The longer leg of a right triangle is 7 ft longer than the shorter leg. The hypotenuse is 9ft longer than the shorter leg. Find
julia-pushkina [17]

Answer:

8, 15 and 17 feet respectively

Step-by-step explanation:

Let the shorter leg=l feet

The longer leg of a right triangle is 7 ft longer than the shorter leg, therefore Length of the longer leg=(l+7) feet

The hypotenuse is 9ft longer than the shorter leg. Therefore Length of the hypotenuse=(l+9) feet

Using Pythagoras Theorem

Hyp^2=Opp^2+Adj^2\\(l+9)^2=l^2+(l+7)^2\\(l+9)(l+9)=l^2+(l+7)(l+7)\\l^2+9l+9l+81=l^2+l^2+7l+7l+49\\l^2+18l+81=2l^2+14l+49

This results into:

2l^2-l^2+14l-18l-81+49=0

l^2-4l-32=0\\l^2-8l+4l-32=0\\l(l-8)+4(l-8)=0\\(l-8)(l+4)=0

l-8=0 or l+4=0

l=8 or -4

Since length cannot be negative, The length l=8 feet

The sides of the rectangle are therefore: 8, 15 and 17 feet respectively

5 0
2 years ago
Shawna has been saving and now has exactly enough money to pay for the pink carpet that she wants in her room. She has $219.70.
enyata [817]

Answer:

169 feet²

$1.30

Step-by-step explanation:

Given that :

Amount Shawna has = exact cost of carpet = $219.70

Length per wall = 13 feets

a) How many square feet of carpet will she need?

Number of square feet of carpet :

13 feets * 13 feets = 169 feet²

B.) Cost of each square foot :

Total cost / number of square feet

$219.70 / 169 feet²

= $1.30

6 0
3 years ago
Your town has seen a steady decrease of job opportunities by the amount of 10% every year. If the number of jobs available at th
anzhelika [568]
350,000*-10%=?
350,000*90%=?
?=315000

5 0
3 years ago
Liam rode his bike to the store every day. It took him 45 minutes to get to school and 45 minutes to get home. If he rode for 3
Elza [17]

Answer:

1,890 minuts

Step-by-step explanation:

3 weeks = 7 days x 3 = 21 days

He rides his bike for "45 minutes to get to school and 45 minutes to get home" which is 90 minutes per day.

Therefore, in total, he rode for 21 days x 90 minutes per day = 1,890 minutes

5 0
3 years ago
Other questions:
  • hummingbirds beat their wings many times per second. which equation relates the number of wing beats per second (a) to the numbe
    13·2 answers
  • If cheese is $4.40 per kilogram me what should I pay for 200 Grammes
    11·1 answer
  • Choose the expression that is equivalent to the expression 4 square root of 6
    8·1 answer
  • There are 14 apples in a blanket. 9 of these apples are green. The rest of them are red.
    12·2 answers
  • Why do you think rates are usually written as unit rates
    12·1 answer
  • Find the product of 28 and 4. ONLY type in the number.
    7·1 answer
  • Rewrite the following expression. x -9/7
    13·1 answer
  • Simplify negative 3 and 1 over 9 − negative 8 and 1 over 3 . (5 points) negative 11 and 1 over 12 negative 5 and 2 over 9 5 and
    14·1 answer
  • dilan bought a table for Rs 3600. He sells it to Kirtim at a profit of Rs 205. Kritim sells it at Rs 4968 to Aayush. Find the pe
    5·1 answer
  • Please help me
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!