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vodka [1.7K]
2 years ago
10

The number of men and women receiving​ bachelor's degrees each year has been steadily increasing. For the years 1970 through the

projection of​ 2014, the number of men receiving degrees​ (in thousands) is given by the equation y=3.6x+447 ​, and for​ women, the equation is ​y=14.1x+311, where x is the number of years after 1970.
​(Type an ordered pair. Do not round until the final answer. Then round each coordinate to the nearest integer as​ needed.)
a.
b.
Mathematics
1 answer:
Otrada [13]2 years ago
6 0
(12, 485)

Hope this helps !(:
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Which is the graph of a quadratic equation that has a negative discriminant?
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Answer:

Here's what I get  

Step-by-step explanation:

The formula for a quadratic equation is

ax² + bx + c = 0

The quadratic formula gives the roots:

x = \dfrac{-b\pm\sqrt{b^2-4ac}}{2a} =  \dfrac{-b\pm\sqrt{D}}{2a}

D is the discriminant.

It tells us the number of roots to the equation — the number of times the graph crosses the x-axis.

D = \begin{cases}\text{positive}  & \quad \text{2 real solutions}\\\text{zero} & \quad \text{1 real solution}\\\text{negative} & \quad \text{0 real solutions}\\\end{cases}

It doesn't matter if the graph opens upwards or downwards.

If D > 0, the graph crosses the x-axis at two points.

If D = 0, the graph touches the x-axis at one point.

If D < 0, the graph never reaches the x-axis.

Your graph must look like one of the two graphs on the right in the Figure below.

5 0
3 years ago
A pen costs twice as much as a pencil. The total cost of 1 pen and 1 pencil is $2.10. If p represents the cost of 1 pencil, whic
oksano4ka [1.4K]

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A:2p+p=10

Step-by-step explanation:

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3 years ago
a hot air balloon is at an altitude of 240 feet. the balloon descends at 30 feet per minute. what equation gives the altitude y,
Rina8888 [55]
To solve this problem you must follow the steps below:

1. The problem says that:

 - The<span> hot air balloon is at an altitude of 240 feet.
 - It descends at 30 feet per minute.

 2. Therefore, you have:

 x: the time in minutes.
 y: the altitute in feet.

 3. Keeping all this information on mind, you can write the following equation:

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 4. Therefore, as you can see, the answer is:
</span>
 y=240-30x
6 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Cfrac15%20%284%20-%203x%29%20%3D%5Cfrac15%20%283x%20-%204%29" id="TexFormula1" title="\frac1
emmainna [20.7K]

Answer:

x=4/3

Step-by-step explanation:

In pic

(hope this helps can I pls have brainlist (crown) ☺️)

8 0
2 years ago
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What is the image of (6,-4) after a reflection over the y-axis?
kirill115 [55]

Answer:

(-6,-4)

Step-by-step explanation:

Hope this helps! (:

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