2 years ago

Which of the following has four faces

Mathematics

2 answers:

Lynna [10]2 years ago

7 0

Answer:

Le answer shalt be tetrahedron.

Marysya12 [62]2 years ago

3 0

C. The Tetrahhedron has 4 faces, all of which are triangles. It also has four vertices and six edges.

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Graph the image of this figure after a dilation with a scale factor of 2 centered at the origin.

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3 years ago

This was given to me during a summative test and the teacher didn't bother giving me the correction. I just cannot figure it out

Dmitry [639]

Base be y

ATQ

$\\ \sf\longmapsto xy=6050\dots 1$

$\\ \sf\longmapsto 2(x+y)=220\implies x+y=110\dots 2$

Now

$\\ \sf\longmapsto (x+y)^2=x^2+y^2+2xy$

$\\ \sf\longmapsto 110^2-2(6050)=x^2+y^2$

$\\ \sf\longmapsto 12100-12100=x^2+y^2$

$\\ \sf\longmapsto x^2+y^2=0\dots(3)$

From all equations

$\\ \sf\longmapsto (x-y)^2=x^2+y^2-2xy$

$\\ \sf\longmapsto (x-y)^2=0-2(6050)$

$\\ \sf\longmapsto (x-y)^2=-12100$

$\\ \sf\longmapsto (x-y)=110\dots(4)$

Now

Adding 3 and 4

$\\ \sf\longmapsto 2x=220$

$\\ \sf\longmapsto x=110m$

One side won't be covered hence

y=2(110)=220m

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2 years ago

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Can someone help asap, with step by step instructions plzzzz.

AleksAgata [21]

Angle a is 35 degrees angle b is 55 degrees angle c is 110 degrees

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2 years ago

Enter the decimal equivalent of 9/4.

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Answer:

2.25

Step-by-step explanation:

$\frac{9}{4} = 2\frac{1}{4} = 2.25$ .

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Answer:

SOLUTION: A motorist takes 4 hours to travel 380 km,how long will he take to travel 570 km at the same average speed. where t is unknown time. = 6 hours. = 6 hours, the same answer.

Step-by-step explanation:

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