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Andreyy89
3 years ago
13

Please help. I will reward brainly

Mathematics
2 answers:
katovenus [111]3 years ago
8 0

Positive, 72 minus negative 9 is the same thing as 72+9, which equals 81. So the answer is positive

Nezavi [6.7K]3 years ago
3 0
Positive. Here's a trick I use.

- + = -
- - = +

You need two lines to make a +, and you can't make one with just -
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Which of the following figures has a circumference that is closest to 121 inches?
aalyn [17]

Answer:

A.

Step-by-step explanation:

C = 2πr = πd

A. C = π(38.5 in.) = 120.95 in.

First guess: Answer: A.

7 0
2 years ago
How many distinct triangles can be formed for which m∠X = 51°, x = 5, and y = 2? zero one two
Vitek1552 [10]
From the law of sines, we have:

\displaystyle{ \frac{\sin \angle X}{x}= \frac{\sin \angle Y}{y}, 

where x and y are the sides opposite to angles X and Y, respectively.


Substituting the known values, we have:



\displaystyle{ \frac{51^{\circ}}{5}= \frac{\sin \angle Y}{2}, thus

                           \displaystyle{ \sin \angle Y=\frac{\sin 51^{\circ}}{5}\cdot2\approx \frac{0.777}{5}\cdot2=0.31.


Using a calculator, we can find that arcsin(0.31)=18 degrees, approximately.

We know that sine of (180-18)=162 degrees is also 0.31. But 162 and 51 degrees add up to more than 180 degrees.

Thus, there is only one triangle that can be formed under these conditions.


5 0
3 years ago
Read 2 more answers
Rose bought 7/20 of candy and 0.4 killogram of fruit which did she buy more of explain your answer
Juliette [100K]

Simplify 7/20 to decimals by dividing.

7 divided by 20= 0.35

Rose bought 0.35 kilograms of candy and 0.4 kilograms of fruit.

So, she bought more fruit, since 7/20 is less than 0.4.

I hope this helps :)

6 0
3 years ago
ANSWER NOW PRONTO STACKED PLSSSSSS 20 POINTS
skad [1K]

Answer:

6.7 I think

Step-by-step explanation:

hope this helps

6 0
3 years ago
Identify an acute angle and give its measure.
melamori03 [73]

Answer:

k&F 20 degrees

Step-by-step explanation:

hope it helps

6 0
2 years ago
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