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4 years ago

What are the coordinates of point F?

Mathematics

1 answer:

sashaice [31]4 years ago

5 0

D, its (x,y) and (8.2,5.7) are the only ones that match up

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the mass of a sphere made of gold is proportional to the diameter, d, cubed. express the mass m of the sphere as a function of t

elixir [45]

Answer:

m = cd³

Step-by-step explanation:

mass of is proportional to the diam

sphere cubed

Symbolically, this can be written as:

m = cd³

4 0

3 years ago

Which of the following so an equivalent expression to the expression a1/3/a1/4?

jenyasd209 [6]

I’m not for sure but I think it’s B

6 0

3 years ago

What is the length of bc in the right triangle below ?

Nana76 [90]

Answer:

BC = 39

Step-by-step explanation:

3 0

3 years ago

The sum of two numbers is -20. The difference of the two numbers is -48. What are the two numbers?

Lostsunrise [7]

34 and -14 as proven here:

Sum: 34 + -14 = 20
Difference: 34 - -14 = 48

just the opposite (when it says negative it gonna be positive)

3 0

3 years ago

Find the sum of 14 + 8 + 2+ ... + ( 274) + (-280).

Musya8 [376]

The sum of the given sequence is -6384.

<u>Step-by-step explanation:</u>

The given Arithmetic sequence is 14 + 8 + 2+ ... + ( 274) + (-280).

The first term of the sequence = 14
The last term of the sequence = -280
The common difference ⇒ 14 - 8 = 6

<u>To find the number of terms in the sequence :</u>

The formula used is $n = (\frac{a_{n}-a_{1}} {d})+1$

where,

n is the number of terms.
$a_{n}$ is the late term which is -280.
$a_{1}$ is the first term which is 14.
d is the common difference which is 6.

Therefore, $n =(\frac{-280-14}{6}) +1$

⇒ $n =( \frac{-294}{6}) + 1$

⇒ $n = -49 + 1$

⇒ $n = -48$

⇒ n = 48, since n cannot be negative.

∴ The number of terms, n = 48.

<u>To find the sum of the arithmetic progression :</u>

The formula used is $S = \frac{n}{2}(a_{1} + a_{n} )$

where,

S is the sum of the sequence.
$a_{1}$ is the first term which is 14.
$a_{n}$ is the late term which is -280.

Therefore, $S = \frac{48}{2}(14+ (-280))$

⇒ $S = \frac{48}{2}(-266)$

⇒ $S = 48 \times -133$

⇒ $S = -6384$

∴ The sum of the given sequence is -6384.

3 0

4 years ago