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Monica [59]
3 years ago
6

Please help me I am awful at graphing. it’s due in a few min and worth half my grade someone please help explain!

Mathematics
1 answer:
Vinil7 [7]3 years ago
4 0

Answer:

Step-by-step explanation:

y=x² +8x +7

first parabola opens up because variable a is positive

the axis of symmetry = =4 ( which is the case or have of the vertex)

v(h,K)

h=-b/2a = -8/2(1)=

h=-4

vertex(-4,-9)

focus(-4,-35/4)

diretrix : y  = -37/4

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An automotive manufacturer has developed a new type of tire that the research team believes to increase fuel efficiency. The man
Stolb23 [73]

Answer:

One tailed

To conclude if there is an increase in the mean gas mileage due to new type of tire.

Step-by-step explanation:

We are given the following in the question:

The manufacture wants to compare increase in the mean gas mileage.

Population mean = 32 miles per gallon

Thus, the manufacture could carry a hypothesis test to compare mean.

A one tailed test (z-test or t-test) based on the information can be used to compare the increase in mean.

Thus,

The automotive manufacturer should perform a one tailed hypothesis test to conclude if there is an increase in the mean gas mileage due to new type of tire.

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It’s either 0 or 1.2
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2 years ago
What is the degree of (3x^2-3)(3x^2+3)
r-ruslan [8.4K]

Answer:

9x^4+3x^2 -6

Step-by-step explanation:

(3x^2-2)(3x^2+3)

expand to remove the bracket

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5 0
3 years ago
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elena55 [62]

Answer:

(4, -5)

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2 years ago
The door to the club house has an area of 1,792 square centimeters. If the length of the door is 56 centimeters. How wide is the
babymother [125]

Answer:

The width of the door is 32 cm.

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