All categories

3 years ago

I need help on this math question?

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

8 0

Answer: C

Step-by-step explanation:

from the expression, (⁵/₈)⁻²

Recall from the laws of indicies,

a⁻¹ = ¹/a , it is called reciprocal law in indicies.

Therefore,

(⁵/₈)⁻² = ¹/(⁵/₈)²

= ¹(²⁵/₆₄)

Therefore, to resolve this, it will be

1 ÷ ²⁵/₆₄

= 1 ˣ ⁶⁴/₂₅

= ⁶⁴/₂₅

The answer is ⁶⁴/₂₅ which is C in the provided options.

You might be interested in

write an equation in slope intercept form for the line described. perpendicular to y = -1/2x + 2/3, passes through (2,3)

Alex17521 [72]

Step-by-step explanation:

Hey there!

Follow the steps to get answer.

Use one point formula and find 1st equation.
After that you find the slope of second equation.
Use the condition of perpendicular lines and find the slope of first equation.
Put slope value of equation in equation (i) and simplify them to get equation.

The equation of a line passing through point (2,3) is;

(y-3)= m1(x-2).......(i).

Another equation is;

$y = \frac{ - 1}{2} x + \frac{2}{3}$

2nd equation..

Now, From equation (ii)

We have;

Comparing equation (ii) with y = mx+c.

We get;

Slope = -1/2.

For perpendicular lines,

$m1 \times m2 = - 1$

$m1 \times \frac{ - 1}{2} = - 1$

Therefore the slope is 2.

Put value of slope (m1) in equation (i). We get;

$(y - 3) = 2(x - 2)$

Simplify them to get equation.

$(y - 3) = 2x - 4$

$y = 2x - 1$

Therefore the required equation is y = 2x-1.

Hope it helps..

4 0

3 years ago

I need some assistance please

zzz [600]

Answer:

2x + y = 20 . y=3x

2x + 3x = 20

5x = 20

x/5 = 20/5

x = 4

(4,0)

6 0

3 years ago

What is the solution set of the equation 3x2 = 48 ?

nalin [4]

Answer:

Step-by-step explanation:

6=48

6 0

3 years ago

a dog is going to be tied to a stake placed in the yard. the owners want the dog to have the largest space available in their tr

s2008m [1.1K]

Answer:

In the corner, so the dog has all the room of the triangular yard to roam and play.

6 0

4 years ago

Imma need sum help please

MrRa [10]

Answer:

Step 5

Step-by-step explanation:

The mistake is in step 5.

The previous step was

$step \: 4 : 2 + 10 \div 2$

The order operations, PEDMAS, must be applied:

We have Addition and Division here,

Using PEDMAS, we must divide first to get:

$step \: 5 : 2 + 5$

We can now add to get:

$step \: 6: 7$

Therefore the mistake occurred at step 5

8 0

3 years ago

I need help on this math question?​

I need help on this math question?