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3 years ago

HELPPPP 9-12 I'LL GIVE YOU BRAINLIEST!!!

Mathematics

1 answer:

Levart [38]3 years ago

5 0

Answer:

19/20- 0.95; 95%

9/16- 0.5625; 56%

0.4- 2/5; 40%

0.22- 22%; 11/50

Step-by-step explanation:

trust me

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which equation represents an exponential function that passes through the point (2, 80)? f(x) = 4(x)5 f(x) = 5(x)4 f(x) = 4(5)x

pav-90 [236]

we know that

if the exponential function passes through the given point, then the point must satisfy the equation of the exponential function

we proceed to verify each case if the point $(2,80)$ satisfied the exponential function

case A $f(x)=4(x^{5})$

For $x=2$ calculate the value of y in the equation and then compare with the y-coordinate of the point

$f(2)=4(2^{5})=128$

$128\neq 80$

therefore

the exponential function $f(x)=4(x^{5})$ not passes through the point $(2,80)$

case B $f(x)=5(x^{4})$

For $x=2$ calculate the value of y in the equation and then compare with the y-coordinate of the point

$f(2)=5(2^{4})=80$

$80=80$

therefore

the exponential function $f(x)=5(x^{4})$ passes through the point $(2,80)$

case C $f(x)=4(5^{x})$

For $x=2$ calculate the value of y in the equation and then compare with the y-coordinate of the point

$f(2)=4(5^{2})=100$

$100\neq 80$

therefore

the exponential function $f(x)=4(5^{x})$ not passes through the point $(2,80)$

case D $f(x)=5(4^{x})$

For $x=2$ calculate the value of y in the equation and then compare with the y-coordinate of the point

$f(2)=5(4^{2})=80$

$80=80$

therefore

the exponential function $f(x)=5(4^{x})$ passes through the point $(2,80)$

therefore

the answer is

$f(x)=5(x^{4})$

$f(x)=5(4^{x})$

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3 years ago

Triangle XYZ has vertices X(1, 3), Y(0, 0), and Z(–1, 2). The image of triangle XYZ after a rotation has vertices X'(–3, 1), Y'(

emmainna [20.7K]

Rotate by angle α = 90°, around a center point (0; 0)
$R^{\alpha=90^o}_{(0;0)}(\Delta XYZ)=\Deltza X'Y'Z'$

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3 years ago

A stereo that cost $500 and sold for $750 in profit percentage

Mashutka [201]

Answer:

50% profit

Step-by-step explanation:

750-500 is 250 so that is a 50% profit/markup

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3 years ago

Please help ill give brainliest

tangare [24]

Answer:

Step-by-step explanation:

15s-100=350

the last one

IDK if you need this s=30

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3 years ago

Read 2 more answers

Match the exponential expression with its rule:

mina [271]

1.=d
2.=a
5.=b
4.=e
3.=c

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4 years ago