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noname [10]
3 years ago
11

Determine in which direction the parabola below opens.

Mathematics
2 answers:
iren2701 [21]3 years ago
7 0

Answer:

the answer is up

Step-by-step explanation:

Naddik [55]3 years ago
4 0
Hello,

y=x²-7x+18
y''=2>0 ==> opens up.
Answer C
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A paint machine dispenses dye into paint cans to create different shades of paint. The amount of dye dispensed into a can is kno
Anton [14]

Answer:

4.464 ml

Step-by-step explanation:

Given that:

mean (μ) = 5 mm, standard deviation (σ) = 0.4 ml

The z score is a score in statistics used to determine by how many standard deviation the raw score is above or below the mean. If the z score is positive then the raw score is above the mean and if the z score is negative then the raw score is below the mean It is given by:

z=\frac{x-\mu}{\sigma}

From the normal distribution table, the 9th percentile (0.09) corresponds to a z score of -1.34

z=\frac{x-\mu}{\sigma}\\\\-1.34=\frac{x-5}{0.4}\\\\x-5=-0.536\\\\x=5-0.536\\\\x=4.464

The dye amount that represents the 9th percentile of the distribution is 4.464 ml

5 0
2 years ago
A bowl of fruit contains 10 oranges, 12 apples, 6 plums, and 2 peaches. If you want to compare the number of apples to oranges w
Sergeu [11.5K]

Answer:

Kindly check explanation

Step-by-step explanation:

To compare the number of apples to oranges

Number of apples = 12

Number of oranges = 10

Number of apples in terms of oranges :

12 /10 = 1.2

Number of apples = 1.2(number of oranges)

If number of apples = x

Number of oranges = y

x = 1.2y

There are 1.2 times the number of apples than number of oranges.

7 0
2 years ago
Can someone please help me I need help
Alex

Answer:

C and B.

Step-by-step explanation:

f(x) = 4 - x^2.

The degree of f(x) is 2, which means it is a quadratic graph. The coefficient of x^2 is negative, which means the curve is pointing downwards. The only curve that satisfies this is Graph C.

f(x) = 2^x + 5.

Notice that 2^x is positive for all real values of x. Therefore the answer is Graph B.

4 0
3 years ago
Read 2 more answers
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2 years ago
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In the diagram AB is parallel to CD. What is the value of X
aivan3 [116]

Answer:

B) 120

Step-by-step explanation:

6 0
3 years ago
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