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
tino4ka555 [31]
3 years ago
10

You are assigned 32 math exercises for homework. You complete 87.5% of these before dinner. How many do you have left to do afte

r dinner?
Mathematics
1 answer:
Helga [31]3 years ago
7 0
32(87.5)
28.000
32-28=
4
4 homeworks you still need to do.
You might be interested in
Evaluate x square2 +12,when x=3
GarryVolchara [31]

Answer:

21

Step-by-step explanation:

3^2=9

9+12=21

Keep it up

6 0
2 years ago
Helpkdksksjdjdsjkdsk
KonstantinChe [14]

-9/10

thats the correct answer but you dont have that choice on your number line so???

4 0
3 years ago
Read 2 more answers
In the first 42 Super bowls, 0.16 of the MVPs were runner backs.
zhenek [66]
The answer for question (1) 16%
3 0
2 years ago
what number become double when you divide by itself and become its half when you multiply it by itself​
Anastasy [175]

Answer:

1/2

Step-by-step explanation:

1/2 times 1/2 equals .25 (.25 is 1/4 which is half of 1/2)

1/2 divided by 1/2 is 1( 1 is 1/2 plus 1/2)

7 0
3 years ago
The outer and inner triangles are both equilateral and the circle touches all three sides of the outer triangle. If the area of
Brrunno [24]

Answer:

The area of outer Δ = 40 cm²

Step-by-step explanation:

∵ Area of the small triangle = 10 cm²

If we join the center of the circle with the 3 vertices of the inner Δ

These 3 segments are the radii of the circle

Now the inner triangle has 3 isosceles Δ their sides are r , r and s1 with vertex angle 120° ⇒ (360° ÷ 3 = 120°)

Where r is the radius of the circle and s1 is the side of the inner triangle

<em>By using cosine rule</em>

(s1)² = r² + r² - 2r²cos120 = r² + r² - 2r² (-0.5) = r² + r² + r² = 3r²

∴ s1 = r√3

∵ The radius of the circle ⊥ to the side of the outer Δ because the side of the outer Δ is a tangent to the circle

If we join a vertex of the outer Δ with the center of the circle

We will have a right angle triangle of two legs r and half s2 with angle 60° (120° ÷ 2 )between them ⇒ s2 is the side of outer Δ

∴ tan 60° = 1/2 (s2) ÷ r ⇒ √3 = 1/2 (s2) ÷ r = (s2)/2r

∴ s2 = 2r√3

∴ s2 : s1 = 2r√3 ÷ r√3 = 2 : 1

∴ The side of the outer Δ is double the side of the inner Δ

<em>By using similarity ratio</em>

A2/A1 = (s2/s1)² ⇒ A2 and A1 are the areas of outer and inner triangles

∴ A2 : A1 = (2/1)² = 4/1  

∴ A2 = 4 A1

∴ A2 = 4 × 10 = 40 cm²

5 0
3 years ago
Other questions:
  • On Monday, Brad biked 1 4/6 miles; Tuesday, 1 3/6 miles; Wednesday, 1 5/6 miles; and Thursday, 1 4/6 miles. On which day did he
    12·2 answers
  • 17. (Ignore income taxes in this problem.) If you wanted to withdraw $12,000 from a bank account at the end of each of the next
    9·1 answer
  • Alex has built a garden shed in the shape shown.
    12·1 answer
  • What is the value of the expression 9 − (fraction 1 over 2)4 ⋅ 48? 1 3 6 9
    15·2 answers
  • A sample of gas has a pressure of 21 Pa at 30degF. What would its pressure be at 80degF? The volume of the gas remains constant.
    7·1 answer
  • Mary bought a circular rug for the living room. The rug has a radius of 16 feet. Which measurement is closest to the circumferen
    15·1 answer
  • Find two square roots of 49<br>​
    9·2 answers
  • Can u help me with problem 7 pls and thank you
    10·1 answer
  • One more than nineteen​
    15·2 answers
  • Which of the following is a correct interpretation of the expression -4 + 13−4+13minus, 4, plus, 13?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!