Answer:
a) Eva will need 2 bags of clay to make both pieces of pottery.
b) She will have leftover
pounds of clay.
Step-by-step explanation:
Hi
a) We have to find the total amount of clay, as she needs
and
, so
, is the total amount of clay. Then as we Know that one bag of clay has
, It isn´t enough, but with two bags
, It is enough clay.
b) She will have leftover
of the second bag, then we add the third one, so
are leftover.
Answer:
D. y = –2x – 7
Step-by-step explanation:
First, find the <em>rate</em><em> </em><em>of change</em><em> </em>[<em>slope</em>]:
-y₁ + y₂\-x₁ + x₂ = m

In this case, the y-intercept of [0, -7] is ALREADY given to you, so we would not have to go further in this case.
I am joyous to assist you anytime.
Answer:
The margin of error of the 90% confidence interval of a student's average typing speed is of 1.933 wpm.
Step-by-step explanation:
We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 20 - 1 = 19
90% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 19 degrees of freedom(y-axis) and a confidence level of
. So we have T = 1.7291
The margin of error is:

In which s is the standard deviation of the sample and n is the size of the sample. For this question, we have
. So



The margin of error of the 90% confidence interval of a student's average typing speed is of 1.933 wpm.
Answer:
5.66 inches
Step-by-step explanation:

a² + 7² = 9²
a² + 49 = 81
a² + 49 - 49 = 81 - 49
a² = 32
a = square root of 32
a = 5.6568 or 5.66 inches
I used the Pythagorean Theorem to solve this.