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Citrus2011 [14]
2 years ago
11

Find the value of (2^−2 − 4^0) × 4^−2​

Mathematics
2 answers:
Dafna1 [17]2 years ago
8 0

Answer:

-0,046875

Step-by-step explanation:

( {2}^{ - 2}  -  {4}^{0} ) \times  {4}^{ - 2}  \\  = (0.25 - 1) \times 0.0625 \\  =  - 0.75 \times  0.0625 \\  =  - 0.046875

kow [346]2 years ago
5 0
-3/64

A negative exponent you treat the same as a positive exponent, except the answer is the reciprocal (ex the reciprocal of 5 is 1/5, and the reciprocal of 3/5 is 5/3)

2^-2 is the same thing as 1/2^2, which equals 1/4. 4^0 = 1, as any number to the 0th power equals 1.

1/4-1=-3/4

4^-2 is the same thing as 1/4^2, which is 1/16.

Multiply -3/4 by 1/16, to get your answer, which is -3/64
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4. Match the equation with its graph. -4x+6y=24​
Nadusha1986 [10]

Answer:

Step-by-step explanation:

Solve the given equation for y:  6y = 4x + 24.  Thus, y = (2/3)x + 4.

This has a y-intercept of 4 and a slope of +2/3.  So we can immediately eliminate the middle two graphs.

The correct graph is the first one.  We know it's correct because the y intercept is + (whereas it's - in the other alternative answer choice).

8 0
3 years ago
Read 2 more answers
Can someone please help me it was my last question I really need help please help me
kobusy [5.1K]

Really ? ?

Price per inch has the units of  "price/inch".  See that ?  It comes from dividing 'price' by 'inches'.

Price = $7.56

Inches = don't know;

... but we know it's 7 feet, and every foot has 12 inches in it

... so there are (7 x 12) = 84 inches of ribbon.

Price per inch = ($7.56) / (84 inches)

Prince per inch = (7.56/84) (dollars/inch)

Now, YOU go ahead and do the division to get the final answer.

8 0
3 years ago
Summary
slava [35]
It the multiplication property because you are multiplying 2x=20 so then you divide on both sides with 2 and that gives you 10
5 0
3 years ago
A company rents water tanks shaped like cylinders. Each tank has a radius of 5 feet and a height of 3 feet. The cost is 3 per cu
vova2212 [387]

Answer: the cost of renting one water tank is 706.5

Step-by-step explanation:

The formula for determining the volume of a cylinder is expressed as

Volume = πr²h

Where

r represents the radius of the cylinder.

h represents the height of the cylinder.

π is a constant whose value is 3.14

From the given information,

Radius = 5 feet

Height = 3 feet

Therefore,

Volume = 3.14 × 5² × 3 = 235.5 cubic feet.

If the cost is 3 per cubic foot, then the cost of renting one water tank is

235.5 × 3 = 706.5

3 0
3 years ago
When Θ = 5 pi over 6, what are the reference angle and the sign values for sine, cosine, and tangent?
nikklg [1K]
Ф =5π/6
The reference angle is the smallest angle that the terminal side of the angle makes with the x-axis.

Given that here π/2 < Ф < π, the angle is in the second quadrant.

In the second quadrant the signs are:

sine positive
cosine negative
tangent negative.

Furthermore, the reference angle is π - Ф = π - 5π/6 = π/6.

Then,

sin Ф = sin π/6 = 1/2
cos Ф = - cos π/6 = -√(3) / 2
tan Ф = - tan π/6 = -√(3) /3
7 0
3 years ago
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