3 years ago

Can a table still be a function if the x values arent the same but 2 y values are the same?

Mathematics

1 answer:

Contact [7]3 years ago

5 0

The answer is yes.

Its yes because it exactly one input(x) & multi outputs(y). <span />

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What is the sum of an 8-term geometric series if the first term is -11, the last term is 859,375, and the common ratio is -5?

NikAS [45]

Formula of the sum of the 1st nth term in a Geometric Progression:

Sum = a₁(1-rⁿ)/(1-r), where a₁ = 1st term, r = common ratio and n= rank nth of term (r≠1)

Sum = (-11)[1-(-5⁸)] /[(1-(-5)]

Sum = (-11)(1- 390625)/(6)

SUM = 716,144

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3 years ago

The distance to school and back is 5.28 miles. How far is it one way?

dusya [7]

I really believe the correct answer is 2.64 miles but if I am wrong I truly apologize

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3 years ago

Read 2 more answers

Given that cos 42° ~ 0.743, what is the sine of the complementary angle?

podryga [215]

Cos<span> 42° ~ 0.743

cos 42° = sin(90-42) = sin 58°

So sine of complementary angle also has same value as cos 42.
So sin 58 ~ 0.743
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6 0

3 years ago

One antifreeze solution is 20% alcohol. Another antifreeze solution is 12% alcohol. How many liters of each solution should be c

katrin [286]

Use this systems of equations to solve:

x = first antifreeze
y = second antifreeze

$\left \{ {{.2x + .12y = .18(15)} \atop {x + y = 15}} \right.$

Isolate y.

x + y = 15
Subtract x from both sides.
y = -x + 15

Substitute y into the other equation.

.2x + .12(-x + 15) = .18(15)
Simplify.
.2x - .12x + 1.8 = 2.7
Subtract 1.8 from both sides.
.08x = .9
Divide both sides by .08
x = 11.25

Substitute x in the equation that we isolated y in.

y = -11.25 + 15
y = 3.75

11.25 L of the first antifreeze and 3.75 L of the second.

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3 years ago

66768 in scientific notation

77julia77 [94]

6.6766*10^4 is that number in scientific notation

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3 years ago