Answer:
Step-by-step explanation:
to the nearest whole number, we take a note of the number after the decimal point
any number higher than 5, 1 is added
but in these case, it is less than 5
835.2301≅835
What percent of the carbon-14 had been lost from the pollen?
(half-life of carbon-14 = 5730)
Answer:
Area of rectangle =
Length of rectangle = 14 m
Width of rectangle = 14 m
Step-by-step explanation:
Given:
Perimeter of rectangle is 56 m
To find: the maximized area of a rectangle and the length and width
Solution:
A function has a point of maxima at if
Let x, y denotes length and width of the rectangle.
Perimeter of rectangle = 2( length + width )
Also, perimeter of rectangle is equal to 56 m.
So,
Let A denotes area of rectangle.
A = length × width
Differentiate with respect to x
Put
Also,
At x = 14,
So, x = 14 is a point of maxima
So,
Area of rectangle:
Length of rectangle = 14 m
Width of rectangle = 14 m
8^2 – 10x - 3
NEED ALL STEPS PLZZZZ
Answer:
hope this attachment will help you
Answer:
12 becayse u mulitigigivuvuu
Answer:
a)n=543
b)n=1509
c)n=13573
Step-by-step explanation:
a)
c=98%,
Margin Error
but
where the confidence level is 1-α=0.98
cross multiply
where p=0.5
input the values
n=0.33
b) E=0.33
confidence level
n=(2.33/0.33)²×0.5(1-0.5)=1504
c)
1-α=0.98
cross multiply
Zα/2=2.33
p=0.5
n=(2.33/0.01)²×0.5(1-0.5)=13573
4x2+3x−3
2x2−7x+7
2x2−3x−3
2x2+3x−3
Answer:
2x2+3x-3
Step-by-step explanation:
The first thing you want to do is find all the X2"s and add those together and that looks like this 3x2+(-x2) which would be 2x2. Then you want to find all of the x's and add them together which looks like this -2x+5x which is 3x. Then you find all the whole numbers without a variable and that's 2-5 which equals to be -3.
To simplify the given expression, rewrite it without parentheses changing the signs of the terms being subtracted. Then, combine like terms. The simplified expression is 2x² - 7x + 7.
To solve this problem, we must subtract the terms in the second parenthesis from the corresponding terms in the first.
Step 1: First, we rewrite the expression without parentheses, changing the signs of the terms in the second set of parentheses because it is being subtracted:
3x² - 2x + 2 - x² - 5x + 5
Step 2: Next, we collect and combine like terms.
3x² - x² - 2x - 5x + 2 + 5 = 2x² - 7x + 7
Thus, the simplified expression is 2x² - 7x + 7.
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