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GenaCL600 [577]
3 years ago
7

) What should be subtracted from -5/3 to get 5/6?

Mathematics
1 answer:
kumpel [21]3 years ago
4 0

Answer:

-\frac{5}{2}

Step-by-step explanation:

Step 1: Put this into an equation

-\frac{5}{3} - x = \frac{5}{6}

Step 2: Solve for x

-x = \frac{5}{6} + \frac{5}{3}

-x = \frac{5}{2}

x =- \frac{5}{2}

Therefore you need to subtract -\frac{5}{2} from -\frac{5}{3} to get \frac{5}{6}

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What is the area to a 2 3/4 inch square?
Vinvika [58]
Since every side of a square is the same length, and the formula to find the area is bh you would just do 2.75²

2.75×2.75=7.5625≈7.56

the answer is the area of the square is approximately 7.56u²
5 0
2 years ago
(a) Find a vector parallel to the line of intersection of the planes −4x+2y−z=1 and 3x−2y+2z=1.
valentinak56 [21]

Find the intersection of the two planes. Do this by solving for <em>z</em> in terms of <em>x</em> and <em>y </em>; then solve for <em>y</em> in terms of <em>x</em> ; then again for <em>z</em> but only in terms of <em>x</em>.

-4<em>x</em> + 2<em>y</em> - <em>z</em> = 1   ==>   <em>z</em> = -4<em>x</em> + 2<em>y</em> - 1

3<em>x</em> - 2<em>y</em> + 2<em>z</em> = 1   ==>   <em>z</em> = (1 - 3<em>x</em> + 2<em>y</em>)/2

==>   -4<em>x</em> + 2<em>y</em> - 1 = (1 - 3<em>x</em> + 2<em>y</em>)/2

==>   -8<em>x</em> + 4<em>y</em> - 2 = 1 - 3<em>x</em> + 2<em>y</em>

==>   -5<em>x</em> + 2<em>y</em> = 3

==>   <em>y</em> = (3 + 5<em>x</em>)/2

==>   <em>z</em> = -4<em>x</em> + 2 (3 + 5<em>x</em>)/2 - 1 = <em>x</em> + 2

So if we take <em>x</em> = <em>t</em>, the line of intersection is parameterized by

<em>r</em><em>(t)</em> = ⟨<em>t</em>, (3 + 5<em>t</em> )/2, 2 + <em>t</em>⟩

Just to not have to work with fractions, scale this by a factor of 2, so that

<em>r</em><em>(t)</em> = ⟨2<em>t</em>, 3 + 5<em>t</em>, 4 + 2<em>t</em>⟩

(a) The tangent vector to <em>r</em><em>(t)</em> is parallel to this line, so you can use

<em>v</em> = d<em>r</em>/d<em>t</em> = d/d<em>t</em> ⟨2<em>t</em>, 3 + 5<em>t</em>, 4 + 2<em>t</em>⟩ = ⟨2, 5, 2⟩

or any scalar multiple of this.

(b) (-1, -1, 1) indeed lies in both planes. Plug in <em>x</em> = -1, <em>y</em> = 1, and <em>z</em> = 1 to both plane equations to see this for yourself. We already found the parameterization for the intersection,

<em>r</em><em>(t)</em> = ⟨2<em>t</em>, 3 + 5<em>t</em>, 4 + 2<em>t</em>⟩

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2 years ago
The Simmons family and the Wright family each used their sprinklers last summer. The water output rate for the Simmons family's
gizmo_the_mogwai [7]

Answer:

y=25 and x=30.

Step-by-step explanation:

See picture

4 0
3 years ago
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I don’t understand this question, what’s the answer?
Goryan [66]
Depending on how far it goes up and over up/run is the m and the y is were it touches the y axis
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3 years ago
As an apprentice to a chef you are preparing a recipe that says to bake the dish for 3/4 of a hour how many minutes should you b
Shalnov [3]
Answer:
You should bake the dish for 45 minutes.

Explanation:
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Hope this helps :D
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