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sp2606 [1]
2 years ago
10

Please help! Being timed! Will mark brainliest!

Mathematics
2 answers:
notka56 [123]2 years ago
8 0
252 square feet would be your answer
Bad White [126]2 years ago
3 0

Answer:

252 square feet

Step-by-step explanation:

Surface area is the addition of the area of all of the faces in a object. There are 2 bases in a triangular prism and both are triangles to the formula is b*h/2. So you would do 3*4/2=6 and since there are 2 bases it is 12 sqaure feet for both of the bases. For the rectangular sides, they are rectangules so the formula would be b*h. You would find the area of each of the rectangular sides. So, 20*3=60 square feet, 20*4=80 square feet, and 20*5=100 square feet. After that you should add up all the areas so 12 square feet +60 square feet +80 square feet +100 square feet =252 square feet which is the suface area.

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Need help again asap please! Find the sum of the first 30 terms of the sequence below an=3n+2
hoa [83]

S_{30} = 1455

generate a few terms of the sequence using a_{n} = 3n + 2

a_{1} = ( 3 × 1) + 2 = 5

a_{2} = (3 × 2) + 2 = 8

a_{3} = (3 × 3 ) + 2 = 11

a_{4} = (3 × 4 ) + 2 = 14

a_{5} = ( 3 × 5 ) + 2 = 17

the terms are 5, 8, 11, 14, 17

these are the terms of an arithmetic sequence

sum to n terms is calculated using S_{n} = \frac{n}{2} [ 2a + (n-1)d]

where a is the first term and d the common difference

d = 8 - 5 = 11 - 8 = 14 - 11 = 3 and a_{1} = 5

S_{30} = \frac{30}{2} [( 2 × 5) + (29 × 3) ]

= 15( 10 + 87) = 15 × 97 = 1455



3 0
3 years ago
Read 2 more answers
Joe purchased a tray of 48 petunias to plant in his garden. The graph shows points representing the number of flowers left to pl
Dovator [93]
From the graph, we can say that the system can be represented by a linear function. A linear function has a standard form of:

y = mx + b where m is the slope and b is the y-intercept.

From the image, b would have a value of 48. The slope can be calculated as follows:

slope = ( 48 - 36 ) / (0 - 1) = -12

The equation can be written as:

y = -12x +48
or
12x + y = 48
6 0
4 years ago
Read 2 more answers
Bagels: six in a bag Apples: eight in a bag Cookies: twelve in a box Juice Boxes: nine in a box Find the least number of package
Rasek [7]

Answer:

just look for the LCM of 6,8,12,9 then that will be your answer

6 0
4 years ago
2 Point
SOVA2 [1]

Answer:P(win|regular) = 0.84

P(win|prevent) = 0.70

Conclusion: You are more likely to win by playing regular defense.

Step-by-step explanation:

Divide the regular defense wins(42) but the total of regular defense (50) and you get 0.84.

Then divide the prevent defense wins(35) by the total of prevent defense(50) and you get 0.70.

Since the regular defense is more than the prevent defense, then you are more likely to win by playing the regular defense. (:

4 0
3 years ago
two forces of magnitude 100n and 70n act on an object. the angle between the forces is 120 degrees. what is the resultant force?
Katen [24]
The resultant force would be 88.88 N at an angle of 43 degrees from the 100 N force.
5 0
4 years ago
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