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3 years ago

Which of the following is an arithmetic sequence?

Mathematics

1 answer:

Anna71 [15]3 years ago

5 0

Here is your answer

A. 1,3,5,7,9,11,.....

REASON :

In an AP their is a common difference between two consecutive terms.

i.e. t2-t1=t3-t2=t4-t3=....= constant

The option A satisfies above condition.

HOPE IT IS USEFUL

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A billboard is 27 feet high and casts a 36-foot shadow at noon. At the same time, a fir tree next to the billboard casts a 48-fo

Archy [21]

Proportion can be used to find the height = 0.75

Step-by-step explanation:

A billboard is 27 feet high and casts a 36-foot shadow at noon.

Height of billboard = 27 feet

Height of shadow of billboard = 36 feet

$\frac{\texttt{Height of billboard}}{\texttt{Height of shadow of billboard}}=\frac{27}{36}\\\\\frac{\texttt{Height of billboard}}{\texttt{Height of shadow of billboard}}=\frac{3}{4}=0.75$

A fir tree next to the billboard casts a 48-foot shadow.

Height of shadow of fir tree = 48 foot

$\texttt{Height of shadow of fir tree, H = }\frac{\texttt{Height of billboard}}{\texttt{Height of shadow of billboard}}\times 48$

Proportion can be used to find the height = 0.75

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3 years ago

Christian and Yong had some stickers in the ratio 2:3. After Yong gave Christian 15 stickers, the ratio became 5:7. What was the

Snezhnost [94]

Answer:

15:23

step-by-step explanation:

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2 years ago

Is 10 m, 20 m, 25 m a right triangle

Softa [21]

Answer:

Step-by-step explanation:

So you put them together (10 m, 20 m, and 25 m) then you see if it makes a triangle.

but the answer is no it doesnt

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2 years ago

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How many centimeters is my bag If IT was 9 centimeters and lost 3 centimeters

geniusboy [140]

Your answer is 6 centimeters because you would have to subtract 3 from 9. Hence, your answer is 6.

Hope I helped!

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3 years ago

Read 2 more answers

One number is 7 more than another. The difference between their squares is 161. What are the numbers?

olga nikolaevna [1]

Let's say the numbers are "a" and "b"

now, we know one of them is 7 more than the other, so hmmm let's say "b" is 7 more than "a", so b = a + 7

the difference of their squares is 161, alrite

$\bf a^2-b^2=161\qquad b=a+7\implies a^2-(a+7)^2=161
\\\\\\
a^2-(a^2+14a+49)=161\implies \underline{a^2-a^2}-14a-49=161
\\\\\\
-14a-49=161\implies -49-161=14a\implies -210=14a
\\\\\\
\cfrac{-210}{14}=a$

and surey you know how much that is

now, what's "b"? well, b = a + 7

3 0

3 years ago