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densk [106]
3 years ago
13

Help with #7 and #12

Mathematics
1 answer:
kirza4 [7]3 years ago
4 0
Check the picture below.

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A guy-wire is attached to a pole for support. If the angle of elevation to the pole is 67° and the wire is attached to the groun
vovangra [49]
You have to go at this in a round-about fashion...by finding the length of the leg across from the 67 degree angle.  This is found by using the tangent ratio...Tan(67)=x/137; x=137tan(67) = 322.8. Now you can use this in one of two ways: use Pythagorean's Theorem to find the length of the hypotenuse OR you could use the sin67=322.8/x.  Up to you. Either way, make sure you have your calculator in degree mode!
4 0
3 years ago
Question 2(Multiple Choice Worth 5 points) (04.05)Marcus painted one-third of his bedroom in fourth-fifths of an hour. At this r
Yuri [45]

Answer: Twelve fifth of an Hour

Step-by-step explanation: a whole is represented by 1

1/3=4/5hours

Whole room 1 =4/5 ÷ 1/3

=4/5×3/1

=4×3/5

=12/5

That's twelve fifth of an hour

4 0
3 years ago
What is the equation?
Nana76 [90]

Answer:

y=-2+4

Step-by-step explanation:

we know the y intercept is four, so we can plug that into y=mx+b

so far we know y=mx+4

and the equation for finding slope is \frac{y_{2} -y_{1} }{x_{2} -x_{1} }

so let's find two points on the graph

let's make it easy on ourselves and use the points laid out for us

(0,4) and (2,0)

\frac{0-4}{2-0}

solving that would come out to be \frac{-4}{2}

simplified, that would be -2

now that we know the slope, we can put them into slope-intercept form

y=-2+4

8 0
3 years ago
Help l rely need it plz plz
tangare [24]
I think number 6. Is 45°
6 0
2 years ago
What improper fraction is the same as 12 3/4?<br> A) 51/4<br> B) 12/4<br> C) 123/4<br> D) 48/4
lbvjy [14]

51/4 because you multiply 12*4 which is 48 and add 3 so you get 51. You keep the denominator so you should get 51/4.

8 0
2 years ago
Read 2 more answers
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