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Schach [20]
3 years ago
10

Find the area of the shaded region. Use 3.14 for pi.

Mathematics
1 answer:
o-na [289]3 years ago
7 0

Answer:

50.88

Step-by-step explanation:

( 3.14 × (8/2)² ) / 2 = 25.12

{ 8 × (15-4) } / 2 = 44

( 15 × 8 ) - ( 25.12 + 44 ) = 50.88

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How much smaller is the sum of the first 1000 natural numbers than the sum of the first 1001 natural numbers?
aleksandr82 [10.1K]

ANSWER

1001

EXPLANATION

The sum of the first n - natural numbers is

S_n=  \frac{n}{2} (2a + d(n - 1))

The sum of the first 1000 terms is

S_{1000}=  \frac{1000}{2} (2(1) + 1(1000 - 1))

S_{1000}=500 (1001)

S_{1000}=500500

The sum of the first 1001 terms is

S_{1001}=  \frac{1001}{2} (2(1) + 1(1001 - 1))

S_{1001}= 1001 \times (501)

= 501501

The difference is

501501 - 500500= 1001

5 0
2 years ago
Read 2 more answers
Using the property of exponents, what do you need to multiply 10^-2 by to get 10^-4?
r-ruslan [8.4K]

Answer:

We conclude that using the property of exponents, we need to multiply 10² to get 10⁴. Step-by-step explanation: Let 'x' be the number we need to multiply 10² by to get 10⁴. Therefore, we conclude that using the property of exponents, we need to multiply 10² to get 10⁴.

8 0
2 years ago
Solve ax^2=bx for x
Vladimir79 [104]
ax^2=bx\\
ax^2-bx=0\\
x(ax-b)=0\\
x=0 \vee x=\dfrac{b}{a}
3 0
3 years ago
Which of these equations shows a proportional relationship?
andre [41]

Answer:

I believe it is Oy=4x-1  

I'm sorry if i'm wrong

3 0
3 years ago
How do you find the area of a parallelogram if the base or height aren’t given?
postnew [5]

If height isn't defined/given you do the equation - h=A /b

If base isn't defined/given you do the equation - b=A /h

A=Area

B=Base

H=Height

5 0
2 years ago
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