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Sati [7]
2 years ago
7

I need some serious help I have 12 minutes left PLZZZ help

Mathematics
1 answer:
Tems11 [23]2 years ago
3 0

Answer:

10. it's 10 yds. lol on jah

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How many micrograms are in 1 milligram?
julia-pushkina [17]

Answer:

1,000 micrograms

Step-by-step explanation:


6 0
2 years ago
Read 2 more answers
A rectangular piece of sheet metal has a length that is 6 in. less than twice the width. a square piece 3 in. on a side is cut f
m_a_m_a [10]
The original width would be 19 and the original length would be 32.

Let w be the width.  Then 2w-6 would be the length.  However, after cutting a 3-inch square from each corner, both the width and length left over to fold into a box would be 6 inches smaller; thus the dimensions would be w-6 and 2w-6-6 or 2w-12.  

Since the section cut out is 3 inches long, 3 will be the height of the box.

Volume is found by multiplying the length, width and height of the box; thus we have:

1014=(w-6)(2w-12)(3)

We multiply the binomials and have:
1014 = [w*2w-12*w-6*2w-6(-12)](3)
1014 = (2w²-12w-12w+72)(3)
1014 = (2w²-24w+72)(3)
1014 = 6w² - 72w + 216

When solving a quadratic equation, we want it set equal to 0.  Subtract 1014 from each side:

1014-1014 = 6w² - 72w + 216 - 1014
0 = 6w² - 72w - 798

We will use the quadratic formula to solve this:

w=\frac{-b\pm \sqrt{b^2-4ac}}{2a}
\\
\\=\frac{--72\pm \sqrt{(-72)^2-4(6)(-798)}}{2(6)}
\\
\\=\frac{72\pm \sqrt{5184--19152}}{12}
\\
\\=\frac{72\pm \sqrt{5184+19152}}{12}
\\
\\=\frac{72\pm \sqrt{24336}}{12}
\\
\\=\frac{72\pm 156}{12}
\\
\\=\frac{72+156}{12} \text{ or } \frac{72-156}{12}
\\
\\=\frac{228}{12} \text{ or } \frac{-84}{12}=19 \text{ or } -7

Since we cannot have a negative number for a measurement, 19 has to be the width; then 2(19)-6 = 32 would be the length.
4 0
3 years ago
In the figure at right, it is given than BDC is straight, BD = DA, and AB = AC = DC. Find the size of angle C
Ilya [14]
You need to use the angle sum of  a triangle in triangle CAD to express y in term of x
for triangla CAD , y = (180 -x) /2
180 = 3x + [ (180-x)/2]

x = 36

hope this helps
6 0
3 years ago
Read 2 more answers
Give f(x)= -5x+4n, find the value of f(-3)
LUCKY_DIMON [66]

Answer:

In the picture.

Step-by-step explanation:

I hope that it's a clear solution.

8 0
3 years ago
Jeffrey's recipe for oatmeal muffins calls for 2 1 4 cups of oatmeal and makes one dozen muffins. If he makes 2 dozen muffins fo
I am Lyosha [343]

Answer:

He will use about 12.375 cups of oatmeal

Step-by-step explanation:

5 0
3 years ago
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