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Advocard [28]
4 years ago
10

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Mathematics
1 answer:
Anna [14]4 years ago
8 0

Answer:

-\sqrt{11}

Step-by-step explanation:

As square root value is written with both + and - signs

In Given case:

A polynomial has root \sqrt{11}

= ±3.316

Also -\sqrt{11}

= ±3.316

Hence -\sqrt{11} is also root of the polynomial!

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Someone help me on this math problem.
timofeeve [1]

If M is a midpoint of PQ, then we can use the formula of a midpoint:

\left(\dfrac{x_1+x_2}{2},\ \dfrac{y_1+y_2}{2}\right)

We have the endpoints (-2a, 0) and (0, 2b). Substitute:

\dfrac{-2a+0}{2}=\dfrac{-2a}{2}=-a\\\\\dfrac{0+2b}{2}=\dfrac{2b}{2}=b

<h3>Answer: M(-a, b)</h3>
4 0
3 years ago
A tile measures 10cm by 10cm. How many such tiles are required to cover a wall of size 4m and 2.5m?
irina [24]

Answer:

Step-by-step explanation:

[4m(2.5m)(100^2cm^2/m^2)]/10^2cm^2=1000 tiles

3 0
3 years ago
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It takes 212121 minutes for 555 people to paint 777 walls. How many minutes does it take 333 people to paint 555 walls?
Papessa [141]

Solution: We are given that:

5 people can paint 7 walls in 21 minutes

Therefore, 1 person can paint 7 walls in 21 \times 5=105 minutes

Which means 1 person can paint 1 wall in \frac{105}{7} =15 minutes

Now, 3 people can paint 1 wall in \frac{15}{3} =5 minutes

Therefore, 3 people can paint 5 walls in 5 \times 5=25 minutes


3 0
3 years ago
The missing terms in an arithmetic sequence are called “arithmetic means”. For example, in the problem above, you might say, “Fi
neonofarm [45]

Answer:

is it minus

Step-by-step explanation:

5 0
3 years ago
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Find an equation for the plane which passes through the point p(1,3,3) and contains the line: l:x(t)=3t,y(t)=2t,z(t)=4+3t
BARSIC [14]

Answer:


Step-by-step explanation:

Given that the plane passes through (1,3,3)

Also the plane contains the line x(t)=3t,y(t)=2t,z(t)=4+3t.

This means all points lying in this line will also lie in the plane.

Find out two points on this line.

First point: Let t =0.  Point is (0,0,4)

Next point : Let t = 1: Point is (3,2,7)

Now we have 3 non collinear points (0,0,4) (3,2,7) and (1,3,3) lying on the plane.

Equation of the plane is

\left[\begin{array}{ccc}x-0&y-0&z-4\\3&2&3\\1&3&-1\end{array}\right] =0

Simplify to get

x(-2-9)-y(-3-3)+(z-4)(9-2)=0

i.e -11x+6y+7z-28 =0

11x-6y-7z+28 =0 is the equation of the plane.


6 0
4 years ago
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