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3 years ago

What is the completely factored form of t^4 − 16

1 answer:

7 0

Since both terms are perfect squares, factor using the difference of squares formula, a^ 2 − b ^2 = ( a + b) ( a − b ) where a = t ^2 and b = 4 .

Answer: ( t^ 2 + 4 ) ( t + 2 ) ( t − 2 )

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Jan and Wayne went to the store to buy some groceries. Jan bought 2 cans of corn beef hash and 3 cans of creamed chipped beef fo

yulyashka [42]

Answer:

The system of equations that models the problem is:

$\left \{ {{2*H+3*C=4.95} \atop {3*H+2*C=5.45}} \right.$

Step-by-step explanation:

A system of equations is a set of two or more equations with several unknowns in which we want to find a common solution. So, a system of linear equations is a set of (linear) equations that have more than one unknown that appear in several of the equations. The equations relate these variables or unknowns to each other.

In this case, the unknown variables are:

H: price of a can of corn beef hash
C: price of a can of creamed chipped beef

Knowing the unit price of a product, the price of a certain quantity of that product is calculated by multiplying that quantity by the unit price. So the price for 2 cans of ground beef hash can be calculated as 2 * H and the price for 3 cans of ground beef with cream can be calculated as 3 * C. Jan paid $ 4.95 for those amounts from both cans. This means that the sum of the can prices must be $ 4.95. So: 2*H + 3*C= 4.95 Equation (A)

Thinking similarly, if Wayne bought 3 cans of corn beef hash and 2 cans of creamed chipped beef for $5.45, Wayne's buy can be expressed by the equation:

3*H + 2*C= 5.45 Equation (B)

Finally, the system of equations that models the problem is:

$\left \{ {{2*H+3*C=4.95} \atop {3*H+2*C=5.45}} \right.$

7 0

3 years ago

What is the anwser to the problem

torisob [31]

8 ) 712

8 goes into 71 8 times; the product of 8 and 8 is 64.

Subtracting this 64 from 71, we get 7, to which we append 2: 8 ) 72.

8 divides evenly into 72: 9.

Thus, the desired quotient is 89.

6 0

3 years ago

Are margin of error and sampling error the same

solmaris [256]

Yes they are
When a research question asks you to find a statistical sample mean (or average), you need to report a margin of error, or MOE, for the sample mean. The general formula for the margin of error for the sample mean is the population standard deviation, n is the sample size, and z* is the appropriate z*-value for your desired level of confidence

1.Find the population standard deviation and the sample size, n.
2.Divide the population standard deviation by the square root of the sample size.
3.Multiply by the appropriate z*-value.
HOPE WİLL HELP

3 0

2 years ago

ME NEED HELP please......please

Viktor [21]

Answer:

17. 2.75

18. 5.50

19. 8.24

Step-by-step explanation:

To find a tip, multiply the total by the percent as a decimal.

27.48*0.10 = 2.75

27.48 *0.20 = 5.50

27.48 = 8.24

6 0

2 years ago

What is the measure of 1

VLD [36.1K]

Answer:

Step-by-step explanation:

The sum of a quadrilateral interior angles is 360°. In order to get the measurement of the missing angle you have to subtract 360 from 62,92, and 114 which will result in 92

3 0

3 years ago

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