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2 years ago

What's the circumference of a circle with a radius of 7 feet?

1 answer:

8 0

The circumference of the circle with 7 feet radius is 43.96 feet. This is computed using the formula in solving the circumference, 2 times Pi times radius. Substituting the values given, circumference is equal to 2 times Pi (3.14) times 7 feet, which give us the answer of 43.96 feet.

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What is the following product ?

AfilCa [17]

Answer:

The correct answer is option B). 7x² -12x√14 + 72

Step-by-step explanation:

I<u>dentity</u>

(a - b)² = a² - 2ab + b²

Find the product

It is given that ( x√7 - 3√8)(x√7 - 3√8)

(x√7 - 3√8)(x√7 - 3√8) = (x√7 - 3√8)²

(x√7 - 3√8)² = (x√7)² - 2*x√7*3√8 +(3√8)²

= 7x² - 6x√56 + 72

= 7x² - 6x*2√14 + 72

= 7x² - 12x√14 + 72

Therefore the correct answer is option B). 7x² - 12x√14 + 72

8 0

2 years ago

Read 2 more answers

Eric invested 5000 dollars in the stock market. The value of his stock increased by 13%. a) what is the amount earned from this

blagie [28]

Answer:

$Earnings = 650$

$New\ Value = 5650$

Step-by-step explanation:

Given

$Amount = 5000$

$Rate = 13\%$

Solving (a): The earnings.

This is calculated as:

$Earnings = Amount * Rate$

$Earnings = 5000 * 13\%$

$Earnings = 650$

Solving (b): New Value

This is calculated as:

So, we have:

$New\ Value = Amount + Earnings$

$New\ Value = 5000 + 650$

$New\ Value = 5650$

4 0

2 years ago

If f(x)=4x-6 and g(x) =2x find f(x) •g(x)

slavikrds [6]

This is same as (4x-6)(2x), so you can distribute 2x into 4x-6 and you would get
(2x)4x - (2x)6 = 8x² - 12x

Final answer: 8x² - 12x

Hope this helps.

5 0

2 years ago

Read 2 more answers

Determine the value of each of the following expressions. a.

nekit [7.7K]

a=2.86

b=48.24

c=31.29

d=84

4 0

2 years ago

Pakisagutan lang po help pls

aniked [119]

Answer:

Step-by-step explanation:

S 50 m = 0.050 km

A ∵ 1 m = 100 cm

∴ 5 m = 500 cm

K ∵ 1000 dm = 0.1 km

∴ 1 dm = $\frac{0.1}{1000}$ km

∴ 5246 dm = $\frac{0.1}{1000}\times 5246$ km

= 0.5246 km

P ∵ 1 m = 1000 mm

∴ 5.246 m = 5246 mm

P ∵ 1 hg = 1000 dg

∴ 3.7 hg = 3700 dg

U ∵ 1 g = 100 cg

∴ 0.37 g = 37 cg

E ∵ 1 kg = 1000 g

∴ 370 kg = 370,000 g

8 0

2 years ago