2 years ago

Zeth has $32.12 in his change

Mathematics

1 answer:

d1i1m1o1n [39]2 years ago

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The answer is $8.43 for this question

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If y is directly proportional to x and if y = 20 when x = 6, what is the value of y when x = 9 ?

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E - 30. From 6 to 9 is increase of 1.5times

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3 years ago

HELP!!!Identify the following parts of the graph

yarga [219]

Answer:

X ints = (-1,0) , (3,0)

Y int = (0, -3)

Minimum (as it infinitely extends positively, but does not go down all the way)

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Step-by-step explanation:

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2 years ago

The point (4,-2) is the vertex of the graph of a quadratic function. The points (8,6) and (2,0) also fall on the graph of the fu

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Answer:

Step-by-step explanation:

y = ax² + bx + c

~~~~~~~

(4, - 2), (8, 6), (2, 0)

a(4²) + b(4) + c = - 2

a(8²) + b(8) + c = 6

a(2²) + b(2) + c = 0

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64a + 8b + c = 6 ............... (2)

4a + 2b + c = 0 ................. (3)

a = 0.5 ; b = - 4 ; c = 6

y = 0.5x² - 4x + 6

Part A: (0, 6), (6, 0)

Part B: (0,6)

Part C: (6, 0)

Part D: [ 4, ∞ )

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2 years ago

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Answer:

-7x²=185-10

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2 years ago

A certain ferry moves up and down a river between Town A and

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Answer: 60 miles

Step-by-step explanation:

Given

It takes ferry 2 hours to travel to town A and only $1.5\ hr$ to travel back to town B.

Speed of current is $u=5\ mph$

Suppose the speed of the ferry is $v$ mph

Distance traveled in both the cases is same, but it took more time traveling to city A that is, ferry is moving upstream and downstream for returning time.

$\Rightarrow 2(v-5)=1.5(v+5)\\\Rightarrow 2v-10=1.5v+7.5\\\Rightarrow 0.5v=17.5\\\Rightarrow v=35\ mph$

Distance between the towns is $2\times (35-5)=60\ \text{miles}$

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2 years ago

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