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3 years ago

Determine whether the sequence 7, 21, 35, 49 is geometric. If so, find its common

Mathematics

2 answers:

Masja [62]3 years ago

5 0

Answer:

Step-by-step explanation:

Firlakuza [10]3 years ago

4 0

Answer:

a. no

Step-by-step explanation:

The sequence is arithmetic. It has a common difference of 14.

7 + 14 = 21

21 + 14 = 35

35 + 14 = 49

A geometric series has a common ratio (multiplication). For example:

7 × 3 = 21

21 × 3 = 63

63 × 3 = 189

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Find the area of a right triangle with a base length of 12 units and a height of 12 units

exis [7]

Answer:

Step-by-step explanation:

It showed us the formula to solve it.

12x12 = 144

144 divided by 2 = 72

72 is the answer.

6 0

3 years ago

Read 2 more answers

The heights of 4 students are 5 1/2 feet, 5.35 feet, 5 4/10 feet and 5.5 feet. What is the height in feet of the shortest studen

tester [92]

So 5 1/2ft is 5.50ft u have 5.35ft so 5 4/10 is 5.40ft and u have 5.5ft so the shortest one is 5.35ft
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-2/3,-1/5,0.4,2 is ure answer

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3 years ago

Please Help? A circle has an arc length of 5π in. The central angle for this arc measures π/3 radians. What is the area of the a

Zielflug [23.3K]

Answer:

The area of the associated sector is $\frac{25}{24}\pi \ in^{2}$

Step-by-step explanation:

step 1

Find the radius of the circle

we know that

The circumference of a circle is equal to

$C=2\pi r$

we have

$C=5\pi\ in$

substitute and solve for r

$5\pi=2\pi r$

$r=2.5\ in$

step 2

Find the area of the circle

we know that

The area of the circle is equal to

$A=\pi r^{2}$

we have

$r=2.5\ in$

substitute

$A=\pi (2.5^{2})=6.25\pi\ in^{2}$

step 3

Find the area of the associated sector

we know that

$2\pi\ radians$ subtends the complete circle of area $6.25\pi\ in^{2}$

by proportion

Find the area of a sector with a central angle of $\pi/3\ radians$

$\frac{6.25\pi }{2\pi} =\frac{x}{\pi/3}\\x=6.25*(\pi/3)/2\\ \\x=\frac{25}{24}\pi \ in^{2}$

8 0

3 years ago

Determine A:B:C, if A:B= 2:3 and B:C =4: 5

cestrela7 [59]

I’m confused what we are suppose to do

6 0

3 years ago

Troy has a price chart below for various ingredients he needs to order for his sandwich bar. Sandwich Ingredients Item Cost (per

shepuryov [24]

Answer:

$93.75

Step-by-step explanation:

The computation of the total cost of order is shown below:

The Cost of 8 pounds of Pepperoni is

= 8 × $3.15

= 25.2

The Cost of 15 pounds of cheese is

= 15 × $1.85

= $27.75

The Cost of 12 pounds of sausage is

= 12 × $3.40

= $40.8

So, The total cost is

= $25.2 + 27.75 + $40.80

= $93.75

4 0

3 years ago