Answer: C
Step-by-step explanation: they said they divided into uqual which 1/8= 1/4 Divide 1/4=.25
Answer:
145 cups of lemonade; 2x+1.50y=425, where y=90
Step-by-step explanation:
Let us first set up an equation, where <em>x</em> represents number of cups of lemonande, and <em>y</em> represents number of candy bars. We know that every cup of lemonade costs $2, every candy bar sold costs $1.50, and that Marcia sold a total of $425. We now have equation:
However, we actually know how many candy bars Marcia sold. Therefore, our y value is 90. Let's rewrite the equation:
<u>Therefore, Marcia sold 145 cups of lemonade.</u>
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<em>I hope this helps! Let me know if you have any questions :)</em>
First differences are ... 0-7 = -7, -1-0 = -1, 4-(-1) = 5, 15-4 = 11, 32-15 = 17.
Second differences are -1-(-7) = 6, 5-(-1) = 6, 11-5 = 6, 17-11 = 6.
The second differences are constant at 6, so the table values would be best fit by a function that is ...
_____
The degree of the polynomial function corresponds to the level of differences that are constant (when the x-values are evenly spaced).
The quadratic function that matches these values is
... y = 3x² +2x -1
... y = (3x-1)(x+1) . . . . in factored form
Complete options are;
A) Paired t-test for means
B) Paired Z-test for means
C) Z-test for proportion
D) t-test for means
E) Z-test for means
F) t-test for proportion
Answer:
B) Paired Z-test for means
Step-by-step explanation:
We are told that the distances travelled are normally distributed.
We are also trying to find out if the average distance travelled by the Titleist Pro V1 golf balls is farther than that of the Callaway Chrome Soft golf balls.
Also, the standard deviation of both cases are known.
Thus, this is where Paired Z-test for means is used.
Answer:
firstly find x
10x+85+8x+5=180
10x+8x+85+5=180
18x+90=180
18x=180-90
18x=90(dived by 18 both sides)
x=5
Step-by-step explanation:
8x+5(make the value of x)
8x5+5
45
angle A is equal to 45
