Using it's formula, considering the results, it is found that the accuracy of the test is of 0.95 = 95%.
<h3>What is the accuracy of a test?</h3>
It is given by the <u>number of correct results divided by the number of tests</u>.
In this problem, there were 80 tests, of which 80 - 2 - 2 = 76 had correct results, hence the accuracy is given by:
A = 76/80 = 0.95 = 95%.
More can be learned about the accuracy of a test at brainly.com/question/3128152
#SPJ1
Answer:
-3
Step-by-step explanation:
If you reflect over the y-axis and then move 2 units to the left(x-2), then ABCD will be 3 units above EHGF. Since you need to move it down 3 units to map ABCD onto EHGF, you will need to do y-3, which is the same as y+-3
Answer:
landing on a shaded portion and landing on an even number
; landing on a shaded portion and landing on a number greater than 3
; landing on an unshaded portion and landing on an odd number
; and landing on an unshaded portion and landing on a number less than 2.
Explanation:
Mutually exclusive events are events that cannot occur at the same time. Our spinner has two grey sections, on 1 and 3; and two white sections, on 2 and 4.
This means that the spinner cannot land on a shaded (grey) portion and land on an even number at the same time, since the grey sections are numbered 2 and 4, both of which are even numbers.
The spinner also cannot land on a shaded (grey) portion and land on a number greater than 3 at the same time; this is because the only number greater than 3 on the spinner is 4, which is a white portion.
The spinner cannot land on an unshaded (white) portion and land on an odd number, since the white sections are labeled 2 and 4, which are both even.
The only number on the spinner less than 2 is 1, which is grey; this means the spinner cannot land on a number less than 2 and an unshaded (white) portion at the same time.
a) algebraic expression
b) Solve and find value of x
x=47
Step-by-step explanation:
We need to translate the following verbal phrase into an algebraic equation
The quotient of three more than a number and five is ten
Let the number be x
three more than a number is written as: 3+x
Since quotient is 10 so,
The algebraic expression will be:
Now, <u>solving to find value of x</u>
Multiplying both sides by 5
Now Subtract -3 from both sides
So, value of x=47
Learn More:
- You can find more info about translating verbal phrase into an algebraic equation
brainly.com/question/1600376
brainly.com/question/1617787
- For finding value of x, more info can be found at:
brainly.com/question/1616605
Keywords: verbal phrase, algebraic expression
#learnwithBrainly
Answer:
it is -4h
step-by-step explanation:
