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2 years ago

What is the sum of the first 7 terms for the geometric sequence with first term 3, seventh term 46,875, and common ratio 5

Mathematics

2 answers:

olga55 [171]2 years ago

5 0

Have a nice day! Hopefully this could help you

Gnom [1K]2 years ago

4 0

The answer is D i think

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1.3. If Sara draws a red ball and DOES NOT RETURN it, and then she goes to draw a green

dimulka [17.4K]

Answer:

Dependent Event

Step-by-step explanation:

Assume that are 10 balls, such that:

$Red = 6$

$Green = 4$

If the balls are replaced after taken, the probability is:

$Pr(Red) = 6/10$

$Pr(Green) = 4/10$

This is referred to as independent event; because each selection do not affect the next or previous selection

However, if the balls are not replaced, the probability is:

$Pr(Red) = 6/10$

$Pr(Green) = 5/(10 - 1) = 5/9$

We subtracted 1 because there is a reduction in the number of balls when the red ball is not returned.

This is referred to as independent event; because a selection affects the next selection

3 0

2 years ago

Find the quotient of 3/5 and 9/10. Express your answer in simplest form.

Drupady [299]

Answer: 2/3

Step-by-step explanation:

3/5 divided by 9/10 = 3/5 x 10/9

I got 30/45 which simplifies to 2/3

4 0

3 years ago

Read 2 more answers

The perimeter of a right triangle is 60 feet and the area is 150 square feet. If the lengths of the sides of the triangle are ea

JulsSmile [24]

Answer:

B. 600 ft

Step-by-step explanation:

The formula for the Perimeter of a right triangle = Side a + Side b + Side c

The perimeter of a right triangle is 60 feet

If the lengths of the sides of the triangle are each multiplied by 10, what is the perimeter of the new right triangle?

Hence, the perimeter of the new right triangle = 10 × 60ft

= 600ft

Option B is the correct Option.

4 0

2 years ago

Read 2 more answers

Two six-sided dice are tossed 288 times. how many times would you expect to get a sum of 5?

dusya [7]

First find the probability of getting 2 and 3 or 1 and 4 and toss the dice. multiply this by 288 ;)

4 0

2 years ago

1. What is the solution of n² – 49 = 0? (1 point)

maks197457 [2]

Answer:

1. $n=\pm7$

2. $x=\pm7i[tex]3.[tex]\pm 12x =a$

4. 22

Step-by-step explanation:

1. $n^2 - 49 = 0$

$n^2 =49$

$n= \sqrt{49}$

$n=\pm7$

2. $x^2+64 = 0$

$x^2 =-64$

$x= \sqrt{49}$

$x=\pm7i[tex]3. Area of square = [tex]a^{2}$

Where a is the side

We are given an area o square = $144x^{2}$

So, $144x^{2}=a^{2}$

$\sqrt{144x^{2}}=a$

$\pm 12x =a$

4. We are given that the solution of quadratic equation -9 and 9

So, equation becomes:

$(x+9)(x-9)=0$

$x^2- 81=0$

So, in the given equation $x^2 + z = 103$

z should be the number from which if we subtract 103 so we get 81

Substitute z = 22

$x^2 + 22 = 103$

$x^2 + 22 -103=0$

$x^2 -81=0$

Thus the value of z is 22

8 0

2 years ago

Read 2 more answers