a 100 point test has x questions worth 2 points each and y questions worth 4 points each what is the total that is given

Mathematics

1 answer:

Vanyuwa [196]3 years ago

4 0

I think it is 8 but im not sure srry if rong

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Somebody please help meeeee pt.2

rosijanka [135]

Answer:

See explanation

Step-by-step explanation:

Consider the sequence 10, 6, 2, -2, -4, ...

Rewrite it as

$a_1=10,\\ \\a_2=6,\\ \\a_3=2,\\ \\a_4=-2,\\ \\a_5=-6,...$

The points on the coordinate plane are

$(1,a_1),\ (2,a_2),\ (3,a_3),\ (4,a_4),\ (5,a_5),...$ (see attached graph).

Since

$4=a_2-a_1=a_3-a_2=a_4-a_3=a_5-a_4=...,$ given sequence is arithmetic.

8 0

3 years ago

Jean's bedroom is 11 feet by 14 feet. She has chosen a carpet which costs $33.30 per square yard. This includes installation.

Allisa [31]

Answer:

The room will cost $569.80 to carpet.

Step-by-step explanation:

Recall that 1 square yard = 9 square feet.

The area of the bedroom, in square feet, is (11 ft)(14 ft) = 154 ft^2.

Converting this to square yards:

154 ft^2 1 yd^2

------------ * ------------ = 17.1 yd^2

1 9 ft^2

17.1 yd^2 $33.30

------------- * ------------- = $569.80

1 1 yd^2

The room will cost $569.80 to carpet.

5 0

3 years ago

50 POINTS!!!!<br><br> Find the volume of the cylinder. Express your answer in terms of π.

xxMikexx [17]

Answer: 735π.

Explanation:

The area of a circle is given by: A= πr^2. The radius of the circle here is 7.

So the area of the circle is:
π7^2=49π

You then multiply 49π by 15 to get the volume:

49π*15=735π

8 0

3 years ago

Read 2 more answers

Ariel wants to write 8 entries for her blog. After 2 hours, she has 5 entries left. After 4 hours, she has 2 entries left. Which

mash [69]

Let x be a time in hours and y be an amount of remaining entries. You have that:

At start Ariel wants to write 8 entries for her blog. This means that x=0 and y=8 (0 entries were written). The point with coordinates (0,8) belongs to needed graph.
After 2 hours, she has 5 entries left. This gives you that at x=2, y=5 and graph passes through the point (2,5).
After 4 hours, she has 2 entries left. This gives you that at x=4, y=2 and graph passes through the point (4,2).

Find the slope of the line that is passing through the points $(x_1,y_1)$ and $(x_2,y_2)$ by formula