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3 years ago

The net of a triangular prism is shown.

Mathematics

1 answer:

egoroff_w [7]3 years ago

8 0

The answer is 14 and 46cm

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Y = −1 / 4 (x + 4) 2 −1 on a coordinate plane using its vertex, focus, and directrix.

trasher [3.6K]

Answer:

Hello,

Step-by-step explanation:

do I remind you of the formula :

where (a,b) is the vertex and y=k the directrix

$y=\dfrac{(x-a)^2}{2(b-k)} +\dfrac{b+k}{2} \\\\\\y=-\dfrac{(x+4)^2}{4} -1 \\\\Using\ identification:\\a=-4\\2(b-k)=-4\\b+k=-2\\\\\left\{\begin{array}{ccc}b-k&=&-2\\b+k&=&-2\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}2b&=&-4\\2k&=&0\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}b&=&-2\\k&=&0\\\end{array}\right.\\$

Focus=(-4,-2)

Directrix: y=0

Vertex=(-4,-1)

6 0

2 years ago

a triangle has sides with lengths of 33 centimeters, 75 centimeters, 89 centimeters. is it a right triangle?

bekas [8.4K]

Step-by-step explanation:

By pythagoras triplet

sum of square of bigger side should be equal to sum of square of remaining two sides

so 75² + 33² = 5625 + 1089 = 6714

and 89² = 7921

here 6714 is not equal to 7921

so this triangle is not right angled triangle

MARK AS BRAINLIST IF IT IS USEFUL

8 0

3 years ago

Distribute and simplify: 2(h - 4)

STatiana [176]

Answer: 2h- 8

Step-by-step explanation:

8 0

3 years ago

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F(x)=-11x-2 and g(x) =7x-4 find (f°g)(x)

tatyana61 [14]

Answer:

- 77x + 42

Step-by-step explanation:

note that (f ○ g)(x) = f(g(x)

Substitute x = g(x) into f(x)

f(g(x))

= f(7x - 4)

= - 11(7x - 4) - 2

= - 77x + 44 - 2

= - 77x + 42

7 0

2 years ago

Select three ratios that are equivalent to 8:5.

zalisa [80]

Answer:

A,D,E IS THE RATIOS EUQIVALENT TO8:5

3 0

2 years ago

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