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Hunter-Best [27]
3 years ago
13

Add. −0.9+2.0 Enter your answer, as a decimal, in the box.

Mathematics
1 answer:
Sveta_85 [38]3 years ago
6 0

Answer:

19.1

Step-by-step explanation:

-0.9+20 = 19.1

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1. If a - b = 4 and a + b = 12, what is the<br> value of a?
Marta_Voda [28]
A=8

Explanation: a+b=12 a-b=4
^^^^^^^ ^^^^^^
8+4=12 8-4=4
A=8
8 0
3 years ago
!!URGENT!!WILL GIVE BRAINLIEST!! GEOMETRY DILATIONS!!! PLEASE INCLUDE EXPLANATION
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Unless otherwise specified we usually assume the dilation is about the origin. That is you can tell the scale factor by the way the distance to the origin changes.

Point C, for example, is 6 units from the origin. Its image, C' is 4 units from the origin. Then the scale factor image/original is 4/6 = 2/3.

Your green question mark gets filled with 3 to make the fraction 2/3.

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To find the translation, pick any point on A'B'C' and find the corresponding point A'', B'', or C''. Count the squares you have to go left to get from A' to A'', for example. That will be 5 to the left. Similarly, count the squares you have to go down to get from A' to A''. That will be 4 down.

7 0
3 years ago
Express 3cm: 3m in the ratio of its simplest form​
Dmitry_Shevchenko [17]

Answer:

1cm:100cm

Step-by-step explanation:

You have to convert the ratio into the same unit (I chose cm). If there are 100cm in a metre, there will be 300cm in 3m.

That leaves you with the ratio 3cm:300cm. To simplify, divide both sides by three leaving you with 1cm:100cm

3 0
3 years ago
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Selected-Response
guajiro [1.7K]
You have to figure out how many 32 ounces are in 96. the answer to that is 3. you then multiply 2 pints times 3 to get 6.

answer is d.) 6 pints
5 0
4 years ago
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Two cruise ships leave the same port with a 35° angle between their path. Cruise A is traveling at 18 miles per hour and Cruise
GuDViN [60]

Answer:

20\:\mathrm{miles}

Step-by-step explanation:

After travelling two hours, the two cruise ships form a triangle. One of the legs  of this triangle will be the distance Cruise A travelled, and another will be the distance Cruise B travelled. We can find the distance they travel using:

s=\frac{d}{t}, d=s\cdot t

Cruise A is travelling at 18 miles per hour for 2 hours. Therefore, Cruise A has travelled:

d=s\cdot t=18\cdot 2=36\:\mathrm{miles}

Cruise B is travelling at 15 miles per hour for 2 hours. Therefore, Cruise B has travelled:

d=s\cdot t=15\cdot 2=30\:\mathrm{miles}

Because we are given the angle between these legs, we can use the Law of Cosines to find the third leg. The Law of Cosines is given by:

c^2=a^2+b^2-2ab\cos C, where a, b, and c are interchangeable. Let c represent the distance between the two cruises. We have:

c^2=36^2+30^2-2\cdot36\cdot30\cdot \cos 35^{\circ},\\c^2=426.63,\\c\approx \fbox{$20\:\mathrm{miles}$}(one significant figure).

8 0
3 years ago
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