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2 years ago

8

The tech ed teacher needs to cut boards for the 6th grade propeller project that are 3/4 feet long.How many propellers can he ge

t out of a board that is 1/2 feet long.

1 answer:

QveST [7]2 years ago

5 0

Answer:

zero

Step-by-step explanation:

1/2 feet is less than 3/4 feet, so is insufficient length for even one propeller. No propellers can be cut from the board.

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In a club of 50 persons the number of men is

Liono4ka [1.6K]

Answer:

if we add 25 more women, we could get 60% women and 40%men

7 0

3 years ago

Given the sequence in the table below, determine the sigma notation of the sum for term 4 through term 15. N an 1 4 2 −12 3 36 t

Rzqust [24]

By applying basic property of Geometric progression we can say that sum of 15 terms of a sequence whose first three terms are 5, -10 and 2 is $\sum_{n=4}^{15} 5(-2)^{n-1}$$$

<h3>What is sequence ?</h3>

Sequence is collection of numbers with some pattern .

Given sequence

$a_{1}=5\\\\a_{2}=-10\\\\\\a_{3}=20$

We can see that

$\frac{a_1}{a_2}=\frac{-10}{5}=-2\\$

and

$\frac{a_2}{a_3}=\frac{20}{-10}=-2\\$

Hence we can say that given sequence is Geometric progression whose first term is 5 and common ratio is -2

Now $n^{th}$ term of this Geometric progression can be written as

$T_{n}= 5\times(-2)^{n-1}$

So summation of 15 terms can be written as

$\sum_{n=4}^{15} T_{n}\\\\$\\$\sum_{n=4}^{15} 5(-2)^{n-1}$$$

By applying basic property of Geometric progression we can say that sum of 15 terms of a sequence whose first three terms are 5, -10 and 2 is $\sum_{n=4}^{15} 5(-2)^{n-1}$$$

To learn more about Geometric progression visit : brainly.com/question/14320920

8 0

2 years ago

Emily has pennies and five dollar bills in her pocket. The number of pennies is eight less than three times the number of five d

Zina [86]

Answer:

3f - 8 = number of pennies

Step-by-step explanation:

3f - 8 = number of pennies

6 0

3 years ago

Read 2 more answers

Six less than the product of five and a number is ten.

dlinn [17]

The answer is 5 because it would like that’s

6 0

2 years ago

I need to know how to find this.

GalinKa [24]

Answer:

Angles BCF and EFH

Step-by-step explanation:

When two parallel lines are crossed by another line (the transversal), the angles in matching corners are called corresponding angles. DCF and GFC isn't the correct answer because those would be vertical angles. GFC and BCA would not be corresponding because they do not fall in matching corners. And same with EFH and BCA. Therefore, BCF and EFH would be corresponding.

5 0

3 years ago