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2 years ago

In a sequence of numbers, a5 = 30, a6 = 34, a7 = 38, a8 = 42, and a9 = 46.

Mathematics

1 answer:

defon2 years ago

7 0

Answer:

A.)

Step-by-step explanation:

Try each choice to see which one works.

A.)

a_n = 4n + 10

a_5 = 4(5) + 10 = 30

a_6 = 4(6) + 10 = 34

a_7 = 4(7) + 10 = 38

Answer: A.)

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Peter was given 40 words to spell to qualify for a prize. He must spell at least 90% of those words correctly. At least how many

AnnZ [28]

Answer:

He should have to spell at least 36 of these words correctly.

Step-by-step explanation:

40 words.

He must spell at least 90% of those words correctly.

At least how many words should he have to spell correctly to get the prize?

90% of 40. So

0.9*40 = 4*9 = 36

He should have to spell at least 36 of these words correctly.

6 0

3 years ago

1 + cot^2 x is equivalent to

zysi [14]

Answer:

csc^2x

Step-by-step explanation:

It's a trig identity where 1+cot^2x = csc^2x

6 0

2 years ago

Need help will mark Brainliest

Svetach [21]

Answer:

250 ft.

Step-by-step explanation:

It seems that you are learning the side-splitter theorem right now. If a line is parallel to one side of the triangle and intersects the other two sides, it divides the side proportionally. From the picture we can tell that the streets are parallel, with a line of intersection. Therefore, we can create the following equation of proportionality:

$\frac{375}{300} = \frac{x}{200}$

Now that we have this equation, we can use the butterfly method to solve for x. We cross multiply:

$375*200=300x\\$

Now, all we have to do is isolate the variable to find x:

$75000=300x\\x=250$

Therefore, the distance of Orange Ave between the 3rd St. and 4th St. is 250 ft.

I hope this helps! Please let me know if you have any further questions :)

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3 years ago

What is 3/4 multiplied by 9 as a mixed number??

mixer [17]

Answer:

6 3/4

Step-by-step explanation:

3/4 * 9 = 27/4

How many times does 4 go into 27

It goes in 6 times (4*6 = 24) with 3 left over

The left over part goes over the denominator

6 3/4

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3 years ago

I'm struggling on this problem . Find the area of this figure

nignag [31]

Answer:

figure please...... I cant see the figure

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3 years ago