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1 year ago

Please help me i forgot how to do this

Mathematics

2 answers:

Mamont248 [21]1 year ago

5 0

Answer:

6 vertices

Step-by-step explanation:

Vertices are basically where two lines meet.

anzhelika [568]1 year ago

5 0

A triangular prism has 5 faces, 6 vertices and 9 edges

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What two numbers add to 9 and multiply to -70

Alborosie

X, y - the numbers

The numbers add to 9 and multiply to -70.
$x+y=9 \\
xy=-70 \\ \\
y=9-x \\
xy=-70 \\ \\
\hbox{substitute 9-x for y in the second equation:} \\
x(9-x)=-70 \\
9x-x^2=-70 \\
-x^2+9x+70=0 \\
-x^2+14x-5x+70=0 \\
-x(x-14)-5(x-14)=0 \\
(-x-5)(x-14)=0 \\
-x-5=0 \ \lor \ x-14=0 \\
x=-5 \ \lor \ x=14 \\ \\
y=9-x \\
y=9-(-5) \ \lor \ y=9-14 \\
y=14 \ \lor \ y=-5 \\ \\
(x,y)=(-5,14) \hbox{ or } (x,y)=(14,-5)$

The numbers are -5 and 14.

4 0

2 years ago

A cat eats 2/3 cup of food each day. How many days will a bag containing 16<br> cuns of food last?

Masja [62]

Answer:

The correct answer is 24

7 0

2 years ago

In the diagram, mZXYZ = 115° and mZWXY = 45°.

Allushta [10]

Step-by-step explanation:

mXYZ+mXYW=180°(being straight angle)

mXYW =180-115

mXYW=65

now,

mXWY+mWXY+mXYW=180°(sum of angle of triangle)

mXWY=180-110

mXWY=70°

hope it helps.

4 0

2 years ago

Help please, put how you found it out if you can too !

earnstyle [38]

Answer:

104 degrees

Step-by-step explanation:

180-(180-(180-(25+85)+65)+31)

7 0

2 years ago

Is the relationship between the amount of gas and pressure direct or indirect? Explain your answer

guajiro [1.7K]

Answer:

INDIRECT!

see below

Step-by-step explanation:

A law that says that if the temperature is constant then the volume of a fixed amount of a gas is <u>inversely proportional</u> to its pressure.If the pressure on a gas increases, the volume of the gas decreases because the gas particles are getting closer together.

8 0

2 years ago