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slavikrds [6]
3 years ago
15

What inequality requires more than one step if the answer is x<-3

Mathematics
1 answer:
Molodets [167]3 years ago
4 0
Is the question asking to make up an equality that, in essence, is anything but x+3<0?
In that case:

2x+9<0
2x<-9
x<-9/3
x<-3
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The pet store has 8790 clownfish. they keep 6 fish in one tank . how many tanks do they have?
Gnoma [55]

Answer:

8790 / 6=1465

Step-by-step explanation:

From this question we know that there are a total of 8790 fish, with 6 of them being kept in one tank, and we want to know how many tanks there are. So we do 8790 / 6 which gives us 1465.

8 0
3 years ago
Population density is the number of people per unit of area. The population density of a certain region is 60 people per square
zvonat [6]

Answer: 1380

<u>Step-by-step explanation:</u>

\dfrac{60\ people}{km^2}\times 23\ km^2\quad =1380\ people

7 0
4 years ago
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Is there anyone who could solve this? Thanks
Rina8888 [55]

Answer:      

a=3r6-b,-3r6-b

Sorry I couldn't figure out how to find B

Step-by-step explanation:


6 0
4 years ago
One of the legs of a right triangle is twice as long as the other, and the perimeter of the triangle is 28. Find the length of t
Nutka1998 [239]

1) If we let the lengths of the legs be x and 2x, then by the Pythagorean theorem,

x+2x+\sqrt{x^{2}+(2x)^{2}}=28\\3x+x\sqrt{5}=28\\x(3+\sqrt{5})=28\\x=\frac{28}{3+\sqrt{5}} \cdot \frac{3-\sqrt{5}}{3-\sqrt{5}}=21-7\sqrt{5}

This means that the length of the hypotenuse is:

\sqrt{5}(21-7\sqrt{5})=\boxed{21\sqrt{5}-35}

2) (Diagram attached) We know that

\cos 51^{\circ}=\frac{x}{58}\\x=58 \cos 51^{\circ} \approx \boxed{36.5}  (in cm)

3) From the Pythagorean identity,

\sin^{2}\left (\arccos \frac{5}{13} \right)+\cos^{2} \left (\arccos \frac{5}{13} \right)=1\\\left(\frac{5}{13} \right)^{2}+\sin^{2} \left (\arccos \frac{5}{13} \right)=1\\\frac{25}{169}+\sin^{2} \left (\arccos \frac{5}{13} \right)=1\\\sin^{2} \left (\arccos \frac{5}{13} \right)=\frac{144}{169}\\\sin \left (\arccos \frac{5}{13} \right)=\boxed{\frac{12}{13}}

4) \frac{\pi}{6}

7 0
2 years ago
What is 3k-1=7k+2 please help me find the answer
dybincka [34]
3k-1=7k+2
    +1      +1
 3k=7k+3
-7k  -7k
-4k=3
divide each side by -4
/-4    /-4

k=-3/4
or
k=-.75

8 0
3 years ago
Read 2 more answers
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