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3 years ago

Which statement is true concerning the vertex and axis of symmetry of h(x)=-2x^2+8x?

Mathematics

2 answers:

ludmilkaskok [199]3 years ago

6 0

My favorites yumAnswer:

Step-by-step explanation:

im jk the answer is 6 bc u multiply them and divide by 8 u would then divide that by 2

stich3 [128]3 years ago

5 0

Answer: the vertex is at (2, 8) and the axis of symmetry is x = 2

Step-by-step explanation:

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What is the value for x?

konstantin123 [22]

Answer:

All angles must add up to 180, so if you add 69+5x+2+9y-3, it is = to 180.

First we can subtract 68 cancelling out 69, 2 and -3 so it is

5x+9y = 112. I assume this is an iscoceles triangle so we already knew 9y - 3 = 69, y=8, x=8

5 0

3 years ago

Please solve these equations much appreciated

Reptile [31]

Answer:

Part c) $V=16,500\ m^3$

Part d) $V=93,312\pi\ mm^3$ or $V=292,999.68\ mm^3$

Step-by-step explanation:

Part c) Find the volume of the inverted rectangular pyramid

The volume of the rectangular pyramid is equal to

$V=\frac{1}{3}Bh$

where

B is the area of the rectangular base

h is the height of pyramid

Find the area of the base B

$B=(60)(15)=900\ m^2$

$h=55\ m$

substitute

$V=\frac{1}{3}(900)(55)$

$V=16,500\ m^3$

Part d) Find the maximum volume of tea in the tea cup

we know that

The volume of cylinder (tea cup) is equal to

$V=\pi r^{2}h$

we have

$r=36\ mm\\h=72\ mm$

substitute

$V=\pi (36)^{2}(72)$

$V=93,312\pi\ mm^3$ -----> exact value

Find the approximate value

assume

$\pi =3.14$

$V=93,312(3.14)=292,999.68\ mm^3$

7 0

3 years ago

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HACTEHA [7]

The answer would be 20 d = h + 58

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