Answer:
Step-by-step explanation:
The zeroes of a function is where its graph intercepts the x axis:
in this case it happens in these points:
(-6;0) , (-4;0) , (0;0) , (2;0) , (4;0)
Answer:
-1/3
Step-by-step explanation:
Take the ratio of the corresponding sides to get the scale factor so for this equation let's use the hypotenuse.
The length of the hypotenuse of the larger triangle is 12 units and the smaller triangle's hypotenuse is 4 so 4/12 is the scale factor.
However 4/12 can be simplified down to 1/3.
Since the smaller triangle has been flipped upside down the scale factor is negative so the final answer is -1/3
The vertex of <span>y = 7x2 + 14x + 4</span> is at
(-1,-3) (see attachment)
Answer:
B.
Step-by-step explanation:
C= 20 degrees Celsius
20 x 9/5 = 180/5
180 divided by 5 = 36 degrees celsius
Then you do 36 degrees celsius + 32 and you get 68.
So therefore 20 degrees celsius is eqivalent to 68 degrees Fahrenheit.
Using the Empirical Rule, it is found that her finishing time will be between 70 and 82 seconds in 95% of her races.
<h3>What does the Empirical Rule state?</h3>
It states that, for a normally distributed random variable:
- Approximately 68% of the measures are within 1 standard deviation of the mean.
- Approximately 95% of the measures are within 2 standard deviations of the mean.
- Approximately 99.7% of the measures are within 3 standard deviations of the mean.
In this problem, the mean is of 76 seconds and the standard deviation is of 3 seconds, then:
76 - 2 x 3 = 70.
76 + 2 x 3 = 82.
Which means that values between 70 and 82 seconds are within 2 standard deviations of the mean, hence the percentage is of 95%.
More can be learned about the Empirical Rule at brainly.com/question/24537145
