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3 years ago

Please help!! No like or I will report!

Mathematics

1 answer:

Marina86 [1]3 years ago

6 0

Answer:

B . 3600π m²

is the answer

Step-by-step explanation:

i think so

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3 times x minus 2/5 =8/5 what is x equal to

shutvik [7]

Translating this word problem into an algebraic equation, we get:

3x - 2/5 = 8/5.

Let's combine the constants: adding 2/5 to both sides of this equation yields

3x = 10/5, or 3x = 2.

Solving for x: x = 2/3

6 0

3 years ago

What is the distance between (4,8), 6=y+ 2x

docker41 [41]

Answer:

2√5

Step-by-step explanation:

The formula for the distance between a point (x, y) and a line in general form, ax +by +c = 0 is ...

$\text{distance}\,=\dfrac{|ax+by+c|}{\sqrt{a^2+b^2}}$

The general form of your equation for the line is ...

2x +y -6 = 0

so the distance to point (x, y) = (4, 8) is ...

$\text{distance}\,=\dfrac{|2\cdot 4+8-6|}{\sqrt{2^2+2^2}}=\dfrac{10}{\sqrt{5}}=2\sqrt{5}$

The distance between the point and line is 2√5.

5 0

3 years ago

Let p= x^2-7.

Advocard [28]

Since p = x² - 7, you can substitute/plug in p for x² - 7

So:

(x² - 7)² - 4x² + 28 = 5

(p)² - 4x² + 28 = 5 You can factor out -4 from (-4x² + 28)

p² - 4(x² - 7) = 5 Plug in p

p² - 4p = 5 Subtract 5

p² - 4p - 5 = 0 Your answer is C

8 0

3 years ago

If the diameter of a sphere is 1 meter, then what is its surface area? Leave your answer in terms of π= 3.14

umka21 [38]

surface area = 4 x pi x r^2

diameter = 1 so radius = 1/2 = 0.5

4 x 3.14 x 0.5^2 = 3.14 meters^2

3 0

3 years ago

Read 2 more answers

17) List the ways five dogs a Beagle, a Collie, a Greyhound, a Poodle and a

Gnoma [55]

Answer:

10 pairs

It is a combination

Explanation:

This is a combination because the order does not matter: the Beagle - Collie couple is the same as the Collie - Beagle couple, so it is only counted once.

The formula for combinations is:

$C(m,n)=\dfrac{m!}{n!\cdot (m-n)!}$

For five diffferent dogs to be put in pairs, the number of different pairs is:

$C(5,2)=\dfrac{5!}{2!\cdot (5-2)!}=\dfrac{5\times 4}{2}=10$

4 0

3 years ago

Please help!! No like or I will report!​

Please help!! No like or I will report!