3 years ago

CAN SOMEONE HELP ME WITH NUMBER 7?? I WILL GIVE BRAINLIEST!

Mathematics

1 answer:

nirvana33 [79]3 years ago

4 0

Answer:

tanx-(\sqrt(11))/(5)cosx>0

Step-by-step explanation:

Because to do this kind of trig you first have to know how to do basic trg

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Someone please help. i will mark as brainliest if right :)

DIA [1.3K]

Answer:

The other factor is 5x-2

Step-by-step explanation:

Using the factorisation method:

Two numbers that multiply to give -10 and add to give +3:

+5 and -2

$5x^{2} +5x-2x-2$

$5x(x+1) -2(x+1)$

$(x+1)(5x-2)$

So the other factor is 5x-2

I'm not sure about the second part of the question but I hope you understood how to deal with the first part.

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2 years ago

If x 2 = x + 1, find x 3 , giving your answer in the form ax + b.

GalinKa [24]

Answer:

${x}^{2} = x + 1 \\ x = {x}^{2} - 1 \\ {x}^{3} = { ({x}^{2} - 1)}^{3} \\ = (x - 1) {}^{3} (x + 1) {}^{3}$

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3 years ago

A rectangular room twice as long as it is wide would contain 160 square feet more if each side were one foot longer. what is the

Blababa [14]

Length= 2*width

area=l*w=2*width*width=2*width^2
area+160=(2*width+1)*(width+1)
A+160=2w^2+2w+w+1
A+160=2w^2+3w+1
putting value of a
2w^2+160=2w^2+3w+1
160=3w+1
w=53m
l=106m

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3 years ago

PLEASE HELP!I'M NEWW

mixer [17]

Answer:

I think its 90°, since it l00ks like a right angle

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When will the tuition reach $20,000 according to the trendline?

Maru [420]

Answer:

2050

Step-by-step explanation:

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