Answer:
B. (1/2, 3)
Step-by-step explanation:
It is perhaps easiest to try the point values in the equations.
A — 4·2+1 = 9; -2·2 +4 ≠9 . . . . not the answer
B — 4·1/2 +1 = 3; -2·(1/2) +4 = 3 . . . . this is the answer
we need go no further since we have the answer
Answer:
80 cups
Step-by-step explanation:
There are 640 ounces in 5 gallons so,
640 divided by 8 equals 80, therefore,
The greatest number of cups that can be served are 80
The answer
to do the calculus, the method is
taking off the paranthesis
adding the term with a similar degree
summing constant terms
(3x^2+3x+5) + (7x^2-9x+8) =
= 3x^2+3x+5 + 7x^2-9x+8
= 3x^2 + 7x^2 + 3x+5 - 9x+8
= 10x² + 3x - 9x +5 +8
= 10x² - 6x + 13
the answer is
(3x^2+3x+5) + (7x^2-9x+8) =10x² - 6x + 13
the error that Lucia did make 3x - 9x = -12x, instead of 3x - 9x = -6x
The solution of the logarithmic equation is approximately 5.66 .
The logarithm is a simpler way to write a exponential equation.
The exponential equation nˣ = b is written as logₙ b = x ( read as logarithm of b to the base of n is equal to x).
The various properties of logarithm are:
- log x+ log y= log x y
- log x - log y= log(x/y)
- log xⁿ=n log x
The given equation is :
log₂ x = 2.5
This equation is of the form logₐ b=n
We know that from the properties of logarithm logₐ b=n is equivalent to aⁿ=b.
So the given equation can be written as
Solving we get
x=5.6568....
or, x≈5.66
Therefore the logarithm equation has a solution for x where the value of x is approximately 5.66.
To learn more about logarithm visit:
brainly.com/question/28346542
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Answer:
1. 11 half cups of beans and 4 three-ounce helpings of shrimp
Step-by-step explanation:
Let x and y represent servings of green beans and shrimp, respectively. Then the number of grams of carbohydrate in the meal is ...
7x +9y = 113
And the number of calories in the meal is ...
30x +190y = 1090
The solution to these equations can be found by your favorite method to be ...
(x, y) = (11, 4)
The appropriate number of servings is ...
1. 11 half cups of beans and 4 three-ounce helpings of shrimp