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3 years ago

Estimate 8.2 x 6.7 divided by 0.46

2 answers:

7 0

In mixed number form it is 119 10/23
As an improper fraction it is 2747/23
In decimal form its estimated as 119.4 (tenth place)

Molodets [167]3 years ago

6 0

Answer:

119.40 rounded as a tenth of 1

120.00 rounded as a normal decimal

119.4%

120% (rounded)

12/10 (Improper rounded)

11/10 with 9 remainder

x = 119.40

Step-by-step explanation:

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I dont know how to do this pls help

Alecsey [184]

Answer:

1) 225

2) 2304

Step-by-step explanation:

Use geometric mean of legs

$x = \sqrt{(16+9)^2 * 9^2} = \sqrt{25^2 * 9^2} = 25 * 9 = 225$

Use geometric mean of altitude

$x = \sqrt{(100-36)^2 * 36^2} = \sqrt{64^2 * 36^2} = 64 * 36 = 2304$

5 0

3 years ago

find the sum of the first 20 terms of an arithmetic sequence with a first term of -14 and a comman difference of 4

timama [110]

Answer:

480

Step-by-step explanation:

Sn = n÷2 × (2a + (n-1)d)

n = 20 a = -14 d = 4

S20 = 10 × (-28 + 19 × 4) = 480

7 0

3 years ago

4^3 = ?<br><br>A. 64<br>B. 7<br>C. 12<br>D. 1

Alexxandr [17]

By defining how exponents work, we conclude that 4^3 = 64, so the correct option is A.

Let's remember how exponents work.

If we have a number a to the exponent n:

a^n

It means that we need to multiply the number a by itself n times.

Then, in this case:

4^3

Can be rewritten to.

4*4*4

Now we can solve that product:

4*4*4 = (4*4)*4 = 16*4 = 64

Then we conclude that the correct option is A

4^3 = 64

If you want to learn more about exponents:

brainly.com/question/847241

#SPJ1

8 0

1 year ago

Help me and you will be blessed

NeX [460]

Answer:

A is a function

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

HELP ASAP TEST IS OMOST OVER!!!!!!!!!!

svet-max [94.6K]

Answer: C)46 ft

Step-by-step explanation:

We know that the circumference of a circle can be calculated with this formula:

$C=2\pi r$

Where "r" is the radius of the circle.

Since John is putting a fence around his garden that is shaped like a half circle and a rectangle, then we can find how much fencing he needs by making this addition:

$Fencing=\frac{2\pi r}{2}+2l+w$

Where "l" is the lenght of the rectangle and "w" is the width of the rectangle.

Since we know that the radius of the circle is half its diameter, we can find "r". This is:

$r=\frac{7ft}{2}=3.5ft$

Then, substituting values (and using $\pi=\frac{22}{7}$ ), we get:

$Fencing=\frac{2(\frac{22}{7})(3.5ft)}{2}+2(14ft)+7ft=46ft$

4 0

3 years ago

Read 2 more answers