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3 years ago

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A student scores 83, 90, and 85 on the first three science tests of the year in order to have a test average of at least 87, the

minimum score the student needs to get on the fourth test

1 answer:

Evgesh-ka [11]3 years ago

5 0

Hope you find this helpful!

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A, B & C lie on a straight line.

slamgirl [31]

Answer:

x=38

Step-by-step explanation:

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2 years ago

How do you get angle x using trigonometry in a right angled triangle?

Scorpion4ik [409]

Answer:

Example

Step 1 The two sides we know are Adjacent (6,750) and Hypotenuse (8,100).

Step 2 SOHCAHTOA tells us we must use Cosine.

Step 3 Calculate Adjacent / Hypotenuse = 6,750/8,100 = 0.8333.

Step 4 Find the angle from your calculator using cos-1 of 0.8333:

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2 years ago

Choose the midpoint of the line segment with endpoints at (5, 9) and (11, 15).

Tcecarenko [31]

Answer:

C) (8,12)

Step-by-step explanation:

$MP= (\frac{x_1+x_2}{2} )(\frac{y_1+y_2}{2} )\\MP= (\frac{5+11}{2} )(\frac{9+15}{2} )\\MP= (\frac{16}{2} )(\frac{24}{2} )\\MP= (8,12)$

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3 years ago

The time spent to travel a certain distance varies inversely as a car's speed. If it takes 5½ hours to travel a certain distance

Licemer1 [7]

Answer:

6.6h

Step-by-step explanation:

So it takes 5.5 hours going at a speed of 60 miles per hour, multiply these two and we get a distance of 330 miles
Use this distance to find the time if speed is 50 miles per hour, so time is derived by dividing the distance by the speed
330 miles divide by 50 miles per hour gives 6.6 hours

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3 years ago

Work out area of a triangle base 9cm height 4cm

insens350 [35]

Area = 1/2 x base x height

Area = 1/2 x 9 x 4

Area = 9 x 2

Area = 18 cm^2

6 0

3 years ago

Read 2 more answers