There are 8 parts in total by adding the ratio. Math 2/8×2.4=0.6 hr
Eng. 2/8×2.4=0.6 hr
Hist. 3/8×2.4=0.9hr
Social. 1/8×2.4=0.3 hr. Add them all will get 2.4
Answer:
B. 22 cm
Step-by-step explanation:
Perimeter of a parallelogram is 2(l+w)
= 2(8+3)
=2(11)
=22cm
Answer:
a) 54 mph to 144 mph
Step-by-step explanation:
We don't know the shape of the distribution, so we use Chebyshev's Theorem to solve this question. It states that:
At least 75% of the measures are within 2 standard deviations of the mean.
At least 89% of the measures are within 3 standard deviations of the mean.
At least eight-ninths of the player's serves.
8/9 is approximately 89%
So
Mean: 99, standard deviation: 15
99 - 3*15 = 54
99 + 3*15 = 144
So the correct answer is:
a) 54 mph to 144 mph
<h2>H
ello!</h2>
The answer is:
The quadratic function that fits the given picture is:

<h2>
Why?</h2>
We can solve the problem and find the correct function that fits the curve below by finding which function intercepts the y-axis at -5 (we can see it from the picture), also, we need to look for a function that represents a parabola opening upwards. We need to remember that when a parabola is opening upwards, its quadratic term coefficient is negative.
So, we can see that from the given functions, the only function that represents a parabola opening upwards and its y-intercept is located at y equal to -5 is the second option:

We have that :

We can see that the quadratic term (a) is negative, and the quadratic function intercepts the y-axis at y equal to -5.
Hence, the answer is:
The quadratic function that fits the given picture is:

Have a nice day!
Note: I have attached a picture for better understanding.
Answer:
A or C. Pretty sure it's A though.
Step-by-step explanation:
:)