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Vanyuwa [196]
3 years ago
6

Please help as soon as possible

Mathematics
1 answer:
Naya [18.7K]3 years ago
5 0
A). The fourth corner of the rectangle is the point (7, 7).
There's no way I can explain it in text without confusing you. The best way for you to understand it is to take a pencil and a blank sheet of paper, draw an x-axis and a y-axis, and then mark dots at the three points given in the question.

The rectangle is 2 units wide and 4 units high. It floats in the air, standing 3 units above the x-axis.

b). The perimeter of the rectangle is 12 units.

c). Its area is 8 square units.
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Write the quadratic equation in general form then choose the value of “b”.
Sonbull [250]

Answer:

Write the quadratic equation in general form then choose the value of “b”.  

(2x-1)(x+5)=0

<u>A.)9</u>

B.)10

C.)11

Step-by-step explanation:

Expand (2x-1)(x+5)

Which is 2x^{2} +9x-5

ax^{2} +bx+c\\

So the value of B is 9

8 0
4 years ago
An object is propelled upward from the top of a 300 foot building. The path that the object takes as it falls to the ground can
serg [7]

Answer:

As per the statement:

The path that the object takes as it falls to the ground can be modeled by:

h =-16t^2 + 80t + 300

where

h is the height of the objects and

t is the time (in seconds)

At t = 0 , h = 300 ft

When the objects hit the ground, h = 0

then;

-16t^2+80t+300=0

For a quadratic equation: ax^2+bx+c=0         ......[1]

the solution for the equation is given by:

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

On comparing the given equation with [1] we have;  

a = -16 ,b = 80 and c = 300

then;

t= \frac{-80\pm \sqrt{(80)^2-4(-16)(300)}}{2(-16)}

t= \frac{-80\pm \sqrt{6400+19200}}{-32}

t= \frac{-80\pm \sqrt{25600}}{-32}  

Simplify:

t = -\frac{5}{2} = -2.5 sec and t = \frac{15}{2} = 7.5 sec

Time can't be in negative;

therefore, the time it took the object to hit the ground is 7.5 sec

8 0
4 years ago
Write the slope-intercept form of the equation of the line described. Do not include any spaces.
Yuri [45]

Answer:

Y = 0x + b

2 = 0 + b, b = 2

Y = 2

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
I can't chose between A or D can someone help me out?
mezya [45]

Answer:

D) How fast you are moving

Step-by-step explanation:

Well, if you're talking about speed, then we don't want distance yet, do we? If you were talking about how far someone ran, then distance would be a piece of data. But speed is "how fast", so something tells me the answer is D.



<em>Bye! Hope this helped. :)</em>

5 0
3 years ago
Read 2 more answers
Solve the triangles. Round to the nearest tenth А 7 B 6 C​
lisov135 [29]

Answer:

Sure but can you show me the triangle.

7 0
3 years ago
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