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3 years ago

What is 3/4 of 2 3/4

Mathematics

1 answer:

Soloha48 [4]3 years ago

4 0

Answer:

The answer of your question is 2.0625

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What is the sum of the geometric sequence 1, 4, 16, ... if there are 8 terms? (6 points)

timama [110]

Answer:

21,845

Step-by-step explanation:

The sum of geometric sequence:

S n = a 1 * ( q^n - 1 ) / ( q - 1 )

where: a 1 = 1,

q = a 2 : a 1 = 4 : 1 = 4

S 8 = 1 * ( 4^(8) - 1 ) / ( 4 - 1 ) =

= ( 65,536 - 1 ) / ( 4 - 1 ) = 65,535 / 3 = 21,845

4 0

3 years ago

Read 2 more answers

Use the coordinate plane, the figure below, coordinate proof strategies, and the lengths and slopes of PM and GR to verify this

Vilka [71]

The "respectively" part is removed so what is the question

7 0

4 years ago

You are part of a construction company that is supposed to build houses. An architect has left plans to build houses on each isl

Marrrta [24]

Answer:

<h2>Island A, B and C has 10, 5 and 7 houses respectively.</h2>

Step-by-step explanation:

Let, the three islands A, B and C has a, b and c houses respectively.

According to the question, a + b = 15; a + c = 17; b + c = 12; a + b + c = 22.

Adding [ a + b = 15; a + c = 17]-these two, we get, $a + (a + b + c) = 15 + 17 = 32\\a + 22 = 32\\a = 10$ .

Now, $a + b = 15\\10 + b = 15\\b = 5$ .

$a + c = 17\\10 + c = 17\\c = 7$ .

7 0

4 years ago

Describe and correct the error a student made finding the intercepts of the graph of the line 4x-6y=12

Bingel [31]

Answer:the error is when 6y=12

Step-by-step explanation:

the original problem says 4x-6y=12

so when you get rid of the 4x, it should still be -6y not positive

6 0

3 years ago

Benjamin threw a rock straight up from a cliff that was 48 ft above the water. If the height of the rock h, in feet, after t s

fomenos

Answer: It will take 4 seconds for the rock to hit the water.

Step-by-step explanation:

Given : Benjamin threw a rock straight up from a cliff that was 48 ft above the water.

If the height of the rock h, in feet, after t seconds is given by the equation

$h = -16 t^2+ 52 t + 48$

To find : Time taken for the rock to hit the water.

When rock hit the water height becomes zero , i.e. put h = 0 , we get

$-16 t^2+ 52 t + 48 =0$

Divide equation by 2 , we get

$-8t^2+26t+24=0$

The Laue of x for ax²+bx+c =0 is $x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}$

So , $t=\frac{-26\pm\sqrt{(26^{2}-4(-8)(24))}}{2(-8)}$

$t=\dfrac{-26\pm 38}{-16}\\\\ t=-\dfrac{-26+38}{-16}=-0.75\ \ t=\dfrac{-26-38}{-16}=4$

Since t cannot be negative , so t= 4

Hence, it will take 4 seconds for the rock to hit the water.

5 0

3 years ago