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Alekssandra [29.7K]

3 years ago

11

May I have some help please.

1 answer:

anzhelika [568]3 years ago

7 0

Answer:

Step-by-step explanation:

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If these two trapezoids are similar, what is the measure of the missing angle?

Leokris [45]

Answer:

90

Step-by-step explanation:

The angle has no tilt, only a turn, and i used a ruler, and the rulers meet as an L, making it a 90

8 0

3 years ago

Consider the first five steps of the derivation of the Quadratic Formula.

lara31 [8.8K]

Answer:

Full proof below

Step-by-step explanation:

$\displaystyle ax^2+bx+c=0\\\\ax^2+bx=-c\\\\x^2+\biggr(\frac{b}{a}\biggr)x=-\frac{c}{a}\\\\x^2+\biggr(\frac{b}{a}\biggr)x+\biggr(\frac{b}{2a}\biggr)^2=-\frac{c}{a}+\biggr(\frac{b}{2a}\biggr)^2\\\\x^2+\biggr(\frac{b}{a}\biggr)x+\frac{b^2}{4a^2}=-\frac{c}{a}+\frac{b^2}{4a^2}\\ \\\biggr(x+\frac{b}{2a}\biggr)^2=-\frac{4ac}{4a^2}+\frac{b^2}{4a^2}\\ \\\biggr(x+\frac{b}{2a}\biggr)^2=\frac{b^2-4ac}{4a^2}\\ \\x+\frac{b}{2a}=\pm\frac{\sqrt{b^2-4ac}}{2a}\\ \\x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

6 0

2 years ago

What is 54.77 rounded to the nearest tenth ?

k0ka [10]

54.8. Hope that helped :)

4 0

3 years ago

Angelo grows vegetables and sells them at a farmers'

irina [24]

Answer:

$7.55

Step-by-step explanation:

We can solve this by using a system of equations. The equations would be set up like this:

$2c + p = 3.15\\3c + 2p = 5.35\\$

Let's isolate a variable in the first equation:

$p = -2c + 3.15$

Now we can plug this in to the second equation:

$3c + 2(-2c + 3.15) = 5.35\\3c - 4c + 6.3 = 5.35\\-c + 6.3 = 5.35 \\-c = -.95\\c = .95$

Now that we have found c we can find p by plugging c in to an equation

$2(.95) + p = 3.15\\1.9 + p = 3.15\\p = 1.25$

We have found both variables now we can use the following equation to answer the question:

$4c + 3p = ?\\4(.95) + 3(1.25) = ?\\3.8+3.75 = 7.55$

Therefore, the price in dollars of 4 cucumbers and 3 peppers is $7.55.

<em>I hope this helps!!</em>

<em>- Kay :)</em>

3 0

3 years ago

9*9*9*9*9+14563*986=<br> brainliest on the line people, help

LenKa [72]

Answer:

14418167

Step-by-step explanation:

The saddest part of this is that when I tried to do this by myself, I got a different answer, and then I looked it up all at once and I got 14418167.

7 0

3 years ago