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3 years ago

Which set of points does NOT represent a function?

Mathematics

1 answer:

Reptile [31]3 years ago

6 0

Answer:

OC is not a function

Step-by-step explanation:

It's not a function because the x cannot repeat.

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Which pair of functions are inverse of each other ?

vazorg [7]

Answer:

$\sf B. \: f(x) = 5x - 9 \: and \; g(x)=\cfrac{x+9}{5}$

Step-by-step explanation:

f(x) = 5x - 9 and g(x) = x+9/5 are inverses of each other.

________________

4 0

1 year ago

The area of a rectangle is 72 cm square. The length of the rectangle is 6 cm longer than the width. What is the width of the rec

miskamm [114]

The correct option will be : B) 6 cm.

Explanation

Suppose, the width of the rectangle is $x$ cm.

As, the length is 6 cm longer than the width, so the length will be: $(x+6) cm.$

Formula for the Area of rectangle is: $(Length)*(Width)$

Given that, the area of a rectangle is 72 cm²

So....

$x(x+6)=72\\ \\ x^2+6x-72=0\\ \\ (x+12)(x-6)=0$

Using zero-product property, we will get...

$x+12=0\\ x= -12$ (Negative value is ignored as width can't be negative)

and

$x-6=0\\ x=6$

So, the width of the rectangle is 6 cm.

6 0

3 years ago

Saturn is 8.867 × 108 miles away from the Sun. Uranus is 1.787 × 109 miles away from the Sun. Approximately how many times farth

GrogVix [38]

Answer:

0.2 times

Step-by-step explanation:

Saturn: 8.867 × 108 = 957.636

Uranus: 1.787 × 109 = 194.783

You take (Uranus: 194.783)

& you divide it by (Saturn: 957.636)

You should get a funky number like 0.203399830415732 but since they said approximately you only need to use the first 2 (don't forget to round)

That would make Uranus 0.2 times as far from the sun

4 0

3 years ago

Write 0.9 as a fraction with a denominator of 10

adelina 88 [10]

The answer is 9/10
the denominator is on the bottom

5 0

3 years ago

Read 2 more answers

Using two independent samples, two population means are compared to determine if a difference exists. The population standard de

ANTONII [103]

Answer:

Hence the degrees of freedom are associated with the critical value is 25.

Step-by-step explanation:

Using two independent samples, two population means are

compared to determine if a difference exists, the population standard deviation is equal.

sample size 1 = $n_{1}$ = 15 and sample size 2 = $n_{2}$ = 12

since, population standard deviations are equal, required degrees of freedom

$= n_{1} + n_{2} - 2 \\= 15 + 12 - 2\\ = 25$

8 0

2 years ago