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lara [203]
3 years ago
5

Use the diagram to answer the question.

Mathematics
1 answer:
Firlakuza [10]3 years ago
8 0
D.Q (3,0)
I think
Sorry if wrong
But I am not sure!
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Solve for X. show your work. (x+2)(x+8)=0
valentinak56 [21]

Step-by-step explanation:

x = -2

x = -8

please follow me

3 0
2 years ago
(geometry) This zigzag crystal vase has a height of 12 inches. The cross sections parallel to the base are always rectangles tha
enot [183]

Answer:

A. 9

B. 7

Step-by-step explanation:

7 0
3 years ago
Suppose a flare is shot from the top of a 120 foot building at a speed of 160 feet per second. The equation h = ?16t + 160t + 12
insens350 [35]

Answer:

The time taken for the flare to hit the ground is approximately 10.7 seconds.

Step-by-step explanation:

Given : Suppose a flare is shot from the top of a 120 foot building at a speed of 160 feet per second. The equation h =- 16t^2+ 160t + 120 models the h height at t seconds of the flare.

To find : How long will it take for the flare to hit the ground?

Solution :

The equation  h =- 16t^2+ 160t + 120 models the h height at t seconds of the flare.

The flare to hit the ground when h=0.

Substitute in the equation,

-16t^2+ 160t + 120=0

Applying quadratic formula, x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

Where, a=-16, b=160 and c=120

x=\frac{-160\pm\sqrt{160^2-4(-16)(120)}}{2(-16)}

x=\frac{-160\pm\sqrt{33280}}{-32}

x=\frac{-160\pm 182.42}{-32}

x=\frac{-160+182.42}{-32},\frac{-160-182.42}{-32}

x=−0.70,10.70

Reject the negative value.

Therefore, the time taken for the flare to hit the ground is approximately 10.7 seconds.

4 0
3 years ago
Express the plane z = x in terms of spherical and cylindrical coordinates
Eddi Din [679]
Mahdidhjfjdbhdmdbxjdndndudjdj
4 0
3 years ago
Open US_Crime-HW7 data. Test if West Virginia’s vehicle thefts are lower than Nebraska’s vehicle thefts on average. Answer quest
marysya [2.9K]

Answer:

c. One sided t-test

Step-by-step explanation:

One sided t test because we want to compare two means and alternative hypothesis is directional.

8 0
3 years ago
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