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Zepler [3.9K]
3 years ago
15

Simplify 8x + 5x mathswatch

Mathematics
1 answer:
Dafna11 [192]3 years ago
3 0

Answer:

8x + 5x

=13x

Step-by-step explanation:

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8 and 3times a number is 128
mel-nik [20]
You must first set up an equation for this problem.  Your equation is 8+3x=128.  If we subtract 8 from each side we get 3x=120.  If we then divide both sides by 3 we get x=40.  Therefore your number is 40 because 8+3*40=128.
5 0
3 years ago
Read 2 more answers
Select the functions that have a value of -1. sin180° cos180° tan180° csc180° sec180° cot180°
kupik [55]

We have to break each degree in terms of 90

A) sin180^\circ=sin(90\times2+0)

Which is in third quadrant, therefore sine is negative hence

sin(90\times2+0)= -sin0 ^\circ = 0


B) cos180^\circ =cos(90\times2+0)

Which is in third quadrant, therefore cosine is negative hence

cos(90\times2+0)= -cos0^\circ  = -1


C) tan180^\circ=tan(90\times2+0)

Which is in third quadrant, therefore tangent is positive hence

tan(90\times2+0)= tan0^\circ  = 0


D) csc180^\circ=csc(90\times2+0)

Which is in third quadrant, therefore cosec is negative hence

cosec(90\times2+0)= -csc0^\circ  =not defined


E)sec180^\circ=sec(90\times2+0)

Which is in third quadrant, therefore secant is negative hence

sec(90\times2+0)= -sec0^\circ  = -1


F) cot180^\circ=cot(90\times2+0)

Which is in third quadrant, therefore tangent is positive hence

cot(90\times2+0)= cot0^\circ = not defined


Hence only cos 180^\circ and

sec180^\circ have value -1

Hope this will help

7 0
3 years ago
I need help plz!!!!!!!!!!!!!!!!!!!!!!!!!
JulijaS [17]

Answer:

i cant SEE the image

Step-by-step explanation:

3 0
3 years ago
AHHH I just wanna know if what I put on the table is right ;-;​
vfiekz [6]

Yeah you did well on the table

3 0
3 years ago
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I need help please it’s difficult
sertanlavr [38]
Subtract the like terms to get your answer of y^2 - 4y - 6
5 0
3 years ago
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