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belka [17]
3 years ago
5

What happens to the equation when y = x becomes y = -x?

Mathematics
1 answer:
notka56 [123]3 years ago
7 0
Well -x is the opposite of x

so i think that it makes the lines perpendicular
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Which presents the value of c
Tems11 [23]

Answer:

It's choice 2.  c = 3 sin 45 / sin 40.

Step by-step explanation:

m< A = 180 - 45-95

= 180 - 140

= 40 degrees.

So by the Sine Rule:

c / sin 45 = 3 / sin A

Cross multiply:

c sin A = 3 sin 45

c =  3 sin 45 / sin 40.

8 0
3 years ago
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As an estimation we are told 5 miles is 8 km. <br> Convert 34.5 km to miles.
rjkz [21]

Answer:

The answer is 21.5625

Step-by-step explanation:

The reason is because it first says 5 miles=8 km so that helps us right there.We divide 34.5 by 8 which will give us 4.3125.Then you have to multiply that by 5 which will give us 21.5625.

8 0
3 years ago
Donald bought a box of golf balls for $9.27. There were 18 golf balls in the box.
wlad13 [49]

Answer:

Each golf ball costs about <u>$2</u>.

Step-by-step explanation:

Given:

Donald bought a box of golf balls for $9.27. There were 18 golf balls in the box.

Rename the decimal dividend as a whole number that is  compatible with the divisor to estimate the quotient.

Now, to find the cost of each golf ball.

<u>As given:</u>

<em>Rename the decimal dividend as a whole number that is  compatible with the divisor to estimate the quotient.</em>

As, the cost of golf ball box = $9.27.

So, 9.27 nearest to whole number is 9.

Thus to get the cost of each ball:

18 golf balls cost = $9.

So, 1 golf ball cost = 18\div 9=2.

Therefore, each golf ball costs about $2.                          

3 0
3 years ago
What is the probability of picking a blue marble from a bag of 3 blue marbles, 4 orange marbles, 2 yellow marbles and 1 red marb
REY [17]
I thinks it’s 20 because it’s easy
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2 years ago
Please help in geometry
nekit [7.7K]
90 degrees

the diagonals intersect at right angles
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