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Nonamiya [84]
3 years ago
8

IM FAILING MY CLASS PLS HELP ASAP

Mathematics
1 answer:
labwork [276]3 years ago
4 0

Answer:

A) 7 + 4(n - 1)

Step-by-step explanation:

The explicit rule follows the form, Tn = a + (n - 1)*(d), where 'a' is the first term and 'd' is the common difference between the numbers

It says that the first term is 7, so 'a' is 7. It also says that the numbers go up by 4 (adding 4 to the previous number), hence 'd' is 4.

Sub these values into the equation:

Tn = 7 + (n - 1)*(4)

Same as: 7 + 4(n - 1)

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What is A? <br> plz help i will give brainliest
FromTheMoon [43]

Answer:

A=n*2+15n+36

Step-by-step explanation:

4 0
2 years ago
Ana starts work at 2:45pm and finshes work at 5:30pm .How much times does Ana spend working
Sloan [31]

Answer:

2 hours and 45 minutes

Step-by-step explanation:

you add the 15 and 30 and then add 2 hours.

3 0
2 years ago
Please Help!!! I have 5 minutes left!!!!! The volume of a​ cone-shaped hole is 16 pi ft cubed . If the hole is 3 ft​ deep, what
postnew [5]

Answer:

V = 1/3 • π • radius cubed • height

If the volume is is 16π and the height is 3, then 16π = 1/3 • π • r cubed • 3

16π ÷ (1/3 • π • 3) = 16

radius squared = 16        √16 = 4, so radius = 4

You can also check: 1/3 • r cubed • 3 = 16    The only value left to multiply is π

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
How do u find the area of a regular polygon? And can someone help me with question 2
Nonamiya [84]
A regular polygon<span> is equilateral (it has equal sides) and equiangular (it has equal angles). To </span>find the area of a regular polygon<span>, </span>you<span> use an apothem — a segment that joins the </span>polygon's<span> center to the midpoint of any side and that is perpendicular to that side (segment HM in the following figure is an apothem).

Hope this helps tho I cant help with #2 sorry</span>
6 0
3 years ago
To find the height of a pole, a surveyor moves 120 feet away from the base of the pole and then, with a transit 8 feet tall, mea
Vikki [24]
Refer to the figure.
Let AB be the height of the pole; CD be the height of the transit; BC is the distance from the base of the pole to the transit.

Triangle ADE is a right triangle with angle D measuring 26 degrees. Using the tangent function, we have
     tan\:26^{\circ} =\frac{AE}{120}
So, 
     AE=120\:tan\:26^{\circ}
     AE=58.53\:

Therefore, the overall height of the pole is 
     AB=58.53+8=66.53\:feet

The height of the pole is 66.53 feet. 

6 0
3 years ago
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