3 years ago

What are the values of x and y in the diagram?

Mathematics

1 answer:

deff fn [24]3 years ago

5 0

X and y are points that help u place other points

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What is a21 of the arithmetic sequence for which a7=−19 and a10=−28? A. -35 B. 35 C. -58 D. -61

shepuryov [24]

Answer:

a21 = -61

Step-by-step explanation:

$a_{n}=a_{1}+(n-1)d$

$-19=a_{1}+(7-1)d$

$-28=a_{1}+(10-1)d$ (subtract to eliminate a₁)

9 = -3d

d = -3

-19 = a₁ + (6)(-3)

-1 = a

a21 = -1 + (21 - 1)(-3)

= -61

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3 years ago

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2,500 principal earning 4% compounded quarterly after 4 years

Kay [80]

A=p(1+r/100)^n
A=2500(1+4/400)^16
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3 years ago

The cost of the tank and filter system is $280. The base of the tank is a square with a perimeter of 60 inches what is the side

Kaylis [27]

Answer:

The side length of of the base of the tank is 15 inches.

Step-by-step explanation:

We are given the following in the question:

Cost of the tank and filter system = $280

Perimeter of tank base = 60 inches

The perimeter of tank is in the shape of square.

We have to find the side length of the base of the tank.

Perimeter of tank base = Perimeter of square =

$P = 4a\\\text{where a is the side of square}\\60 = 4a\\\Rightarrow a = 15\text{ inches}$

Thus, the side length of of the base of the tank is 15 inches.

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3 years ago

Long Division

Elenna [48]

check the picture below.

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3 years ago

What is the next number in the sequence below?

Charra [1.4K]

Answer:

D.32

Step-by-step explanation:

25-18=7

18-11=7

11-4=7

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3 years ago

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