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2 years ago

Which best explains whether or not triangles RST and ACB are congruent?

Mathematics

1 answer:

irga5000 [103]2 years ago

7 0

Two triangles are congruent if and only if their corresponding parts are congruent (CPCTC).

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Goofy wants to buy white rice. The store has 4 different sizes of white rice bags: $2.00 for 1 pound, $4.25 for 2 pounds, $9.50

Tanzania [10]

Answer:

20 dollars for 12 pounds.

Step-by-step explanation:

This is a critically important question to know the answer to. It is used almost every day by good shoppers.

The trick is to get everything down to 1 pound.

$2.00

$2.00 per pound. The question is the answer.

$4.25

$4.25 / 2 pounds = $2.13 rounded.

$9.50

$9.50 / 5 = $1.90

$20

$20/12 = $1.67 rounded

8 0

2 years ago

What are questions 10-15?

AfilCa [17]

Answer:

10. 105

11. 75

12. 75

13. 105

14. 75

15. 105

Step-by-step explanation:

Notice that 75? Anything that is adjacent (has a common vertex like 75º) to the vertex is a linear pair. here is an example below:

Since there is only THAT 75, you must find the supplementary angle (adds up to 180). and remember in order to get a supplementary angle it has to be a STRAIGHT LINE and HAS TO EQUAL 180. (4, 1 in your image)

180 - 75 = 105.

and also it's also a linear pair so it reflects too which makes things a lot easier!

So, if 4 is 75 and it reflects, then that means 2 is also 75. 1 is 105 and it reflects so 3 has to be 105. and the same for the rest of the numbers.

Hope this makes sense

~R3VO

6 0

2 years ago

Estimate the diameter of the supergiant star Betelgeuse, using its angular diameter of about 0.05 arcsecond and distance of abou

8090 [49]

0.05 arc-second = 1 degree/72000 = (pi radians)/(180*72000) = 2.424 x 10^(-7) radians

The distance is roughly:

R*(theta) = (600 light-years)*2.424 x 10^(-7) = 0.00014544 light-years = 1.275 light-hours = (3600 seconds)*(3 x 10^8 m/s)*(1.275) = 1.38 x 10^12 meters.

7 0

3 years ago

Read 2 more answers

A cone-shaped water tank is completely filled. The tank has a depth of 12 feet and a radius of 29 feet. A pump removes water fro

Sauron [17]

Answer:

Volume = 10562.96 cu ft

10.56 hr. to drain all the water

Step-by-step explanation:

V = 1/3Bh B = area of the base h = height

The base is a circle, so $B = \pi r^{2}$