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3 years ago

What is 2 13/18 - z = 1 19/36

Mathematics

1 answer:

Rama09 [41]3 years ago

7 0

Answer z= 43/36

Step-by-step explanation:

We have given,

2 13/18 - z = 1 19/36

Since 2 13/18 = 49/18 and 1 19/36 = 55/36

So we can write,

2 13/18 - z = 1 19/36

or 49/18 - z = 55/36

or 49/18 - 55/36 = z

or (98 -55)/36 = z

or 43/36 = z

Hence we got z = 43/36

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Please help with the question.

Tju [1.3M]

Answer:

Step-by-step explanation:

Let y = f(x) and rearrange making x the subject

y = x² + 7 ( subtract 7 from both sides )

y - 7 = x² ( take the square root of both sides )

± $\sqrt{y-7}$ = x

Change y back into terms of x, thus

$f^{-1}$ (x) = ± $\sqrt{x-7}$

7 0

4 years ago

The cost of stainless steel tubing varies jointly as the length and the diameter of the tubing. If a 5ft length with diameter 2

elena55 [62]

Answer:

The cost for 17 ft length with diameter 5 in is $408.

Step-by-step explanation:

Consider the provided information.

It is given that the cost of stainless steel tubing varies jointly as the length and the diameter of the tubing. If a 5 foot length with a diameter 2 inches costs $48.00.

let $C\propto L\cdot D$

$C=k\cdot L\cdot D$

$48=k\cdot 5\cdot 2$

$\frac{48}{10}=k$

$k=4.8$

For 17 ft length with diameter 5in the cost will be:

$C=k\cdot L\cdot D$

Substitute the respective values in the above formula.

$C=4.8\cdot 17\cdot 5$

$C=408$

Cost = $408

Hence, the cost for 17 ft length with diameter 5in is $408.

6 0

4 years ago

A cylinder with radius 6 cm and height h cm has the same volume as a sphere with radius 4.5cm

lesya [120]

Answer:

h = 4.22 cm

Step-by-step explanation:

Mathematically, we have the volume of a cylinder as;

V = pie * r^2 * h

We have it that the radius is 6 cm

V = pie * 6^2 * h

for the sphere, we have it that;

V = 4/3 * pie * r^3

V = 4/3 * pie * 4.5^3

We can proceed to equate both volumes;

pie * 6^2 * h = 5/3 * pie * 4.5^3

pie on both sides cancel out

6^2h = 5/3 * 4.5^3

36h = 151.875

h = 151.875/36

h = 4.22 cm

7 0

3 years ago

How do you this<br> 2 x 2 = 3 +

LUCKY_DIMON [66]

If you want to start getting comfortable with 'Algebra', try it like this: A big math rule that you'll use for the rest of your life is: When you see an 'equals' sign, you can do anything you want to the stuff on one side of it, but whatever you do on one side, you must do exactly the same thing to the other side. Let's do your problem that way. Right now, you have (2 x 2) = 3 + ? . . . Let's subtract 3 from each side. You'll see how useful that can be. When you do that, your question says (2 x 2)-3 = ? . . . . Look at the left side. You know that 2x2 is 4 . So the question says 4 - 3 = ? . How much is 4 - 3 ? My calculator says it's ' 1 ' . So now your question says 1 = ? and there's the answer. ... Once you subtracted 3 from each side, it practically solved itself.

5 0

3 years ago

Read 2 more answers

Factor x-a in such a way that square root of x - square root of a is a factor

Taya2010 [7]

We want to factor the expression x - a, in such a way that we have one factor written as:

(√x - √a)

We will find that the factorized expression is:

(√x - √a)*(√x + √a)

Here we need to remember two things:

First, (√x)^2 = √(x^2) = x

also:

(x^2 - y^2) = (x + y)*(x - y)

Now, using the first property, we can rewrite our original expression as:

(x - a) = ( (√x)^2 - (√a)^2)

Now, using the second property, we can rewrite it as:

( (√x)^2 - (√a)^2) = (√x - √a)*(√x + √a)

Then we have:

(x - a) = (√x - √a)*(√x + √a)

Thus, we have factorized (x - a) in such a way that one of the factors is equal to (√x - √a)

If you want to learn more, you can read:

brainly.com/question/19386208

5 0

3 years ago