3 years ago

Please help me with question 1 (Trig Practice)

Mathematics

1 answer:

ipn [44]3 years ago

8 0

Check the picture below.

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The value of y is inversely proportional to the value of x. When y=42, x=6.

NARA [144]

Because $x$ and $y$ are inversely proportional, there is some constant $k$ such that

$xy=k$

Given that $y=42$ and $x=6$ , we have

$k=6\times42=252$

So when $x=9$ , you have

$9y=252\implies y=\dfrac{252}9=28$

4 0

3 years ago

What is the value of Fraction 1 over 2x3 + 3.4y when x = 4 and y = 2?

Maru [420]

25.8 because y = 2 so yeaaaa

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3 years ago

Read 2 more answers

A car travels a distance of 145 miles in a time of 2.4 hours.

bagirrra123 [75]

Answer:

60.4miles/hr

Step-by-step explanation:

Given parameters:

Distance covered by the car = 145miles

Time taken = 2.4hrs

Unknown:

Average speed of the car = ?

Solution:

Average speed is the rate of change of distance with time;

Average speed = $\frac{distance}{time}$

Input the parameters and solve;

Average speed = $\frac{145}{2.4}$ = 60.4miles/hr

3 0

3 years ago

(-14x+14)1/2+14x use distributive property Help please

brilliants [131]

1/2(-14x + 14) + 14x

Distributive property.

-7x + 7 + 14x

Combine like terms.

7x + 7 (This is the simplified answer.)

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4 years ago

Help me and show work plz <3

wel

The answer is (4/9)^11 since it is addition you add the powers however the fraction has to be the same in order for it to work same for division but division is subtraction

4 0

3 years ago