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FinnZ [79.3K]
3 years ago
6

-4x<20 X<-5 Describe the error that she made What the answer

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
3 0

Answer:

your supposed to flip the sign for the less than or greater than sighs when dividing by a negative.

Step-by-step explanation:

-4x←20

x→-5

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99165+67894321-9872345​
julsineya [31]

Answer:

58121141

Step-by-step explanation:

99165+67894321= 67993486  

67993486-9872345= 58121141

6 0
3 years ago
What is the argument of -5\sqrt{3}+ 5i?
Shtirlitz [24]

Answer:

150 degrees

Step-by-step explanation:

Graphing the complex number we see the angle terminates in the second quadrant. This means the argument, the angle, will be between 90 degrees and 180 degrees.

So if we create a right triangle with that point after graphing it. We see the height of that triangle is 5 because that is the imaginary part. The base of that triangle has length 5\sqrt{3}. The problem is this doesn't give us any part of the angle we want, but it does give us the complementary of the part of the angle that is in second quadrant.

Let's find the complementary angle.

So the opposite side of the complementary angle is 5.

The adjacent side of the complementary angle is 5\sqrt{3}.

\tan(\theta)=\frac{5}{5\sqrt{3}}

\tan(\theta)=\frac{1}{\sqrt{3}}

\theta=\tan^{-1}(\frac{1}{\sqrt{3}})

\theta=30

So 90-30=60.

The answer therefore 60+90=150.

4 0
2 years ago
Find the area of the triangle with ∠A = 86, b = 4 ft, and c = 3 ft. Round your answer to two decimal places.
Leona [35]
I hope this helps you



Area=1/2.b.c.sinA


Area =1/2.4.3.0,99


Area =5,98
6 0
3 years ago
Given the equation y=2x+4, what is the value of y when x=5? *
Law Incorporation [45]

Y=2(5)+ 4
Y= 10+4
Y = 14
6 0
2 years ago
Divide 17/28 by 2/3 input your answer as a reduced fraction. HELP ASAP
vovangra [49]

Answer:

51/56

Step-by-step explanation:

Keep/Change/Flip

keepthe first fraction the same

change the division sign into a multiplication sign

flip the seond fraction upside down (in this case it would become 3/2)

6 0
3 years ago
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