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3 years ago

What is the common denominator for 14/25 and 10/21

Mathematics

1 answer:

Brrunno [24]3 years ago

6 0

To start off, let us find the least common multiple of 25 and 21.

25=5 to the power of 2(which means 5*5)

21= 3*7

So, the lcm is 5*5*3*7(25*21).

Which results in the answer being 525.

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Y = 2x + 3 find the 151st term

harkovskaia [24]

Y=2(151)+3

y=302+3

y=305

So the 151st term is 305

3 0

3 years ago

Find the slope of the line that passes through (8, 4) and (5, 2).

Troyanec [42]

If u you do the slope formula...(m=y2-y1/x2-x1)

2-4/5-8
-2/-3=2/3
Therefore the slope would be 2/3
Btw can u plz mark this answer the brainliest

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4 years ago

What is the area of the circle?

Tanzania [10]

Area = $\pi$ * r^2
= $\pi$ * 1.8^2
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6 0

3 years ago

Read 2 more answers

HELP it’s not 20.40 which is what someone else answered lol

kvv77 [185]

Answer:

I think it 19.6

Step-by-step explanation:

Sorry if im wrong

7 0

3 years ago

Given f(x)=-1/7√16-x^2 find f^-1(x)

Vera_Pavlovna [14]

Answer:

$f^{-1}(x)=\pm \sqrt{49x^2-16}$

Not a function.

Step-by-step explanation:

The given function is;

$f(x)=-\frac{1}{7}\sqrt{16-x^2}$

Let $y=-\frac{1}{7}\sqrt{16-x^2}$

Interchange x and y;

$x=-\frac{1}{7}\sqrt{16-y^2}$

Solve for y;

$-7x=\sqrt{16-y^2}$

Square both sides

$(-7x)^2=(\sqrt{16-y^2})^2$

$49x^2^2=16-y^2$

$49x^2^2-16=y^2$

$y=\pm \sqrt{49x^2-16}$

The inverse is

$f^{-1}(x)=\pm \sqrt{49x^2-16}$

$f^{-1}(x)=\pm \sqrt{49x^2-16}$ is not a function because one x-value maps onto to different y-values.

6 0

3 years ago