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Ket [755]
3 years ago
14

Help anyone please i need it

Mathematics
1 answer:
zheka24 [161]3 years ago
4 0

Answer:

The sum is equal to -905,200

Step-by-step explanation:

we know that

The formula to calculate the sum is equal to

Sn=n\frac{(a1+an)}{2}

In this problem

n=775 -----> number of terms

a1 is the first term

a1=(-3(1)-4)=-7

an is the last term

an=(-3(775)-4)=-2,329

substitute

Sn=775\frac{(-7-2,329)}{2}=-905,200

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A box of a dozen donuts has three lemon cream filled , five chocolate cream filled and 4 vanilla cream filled. If the doughnuts
pishuonlain [190]

Answer:

5/12

Step-by-step explanation:

There is a 5(total chocolate donuts) out of 12(total donuts) chance of it being a chocolate cream filled donut.

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3 years ago
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Wewaii [24]
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What is the value of the 30th term in the following arithmetic sequence? 12, 6, 0, -6, ... 186 -186 342 -162
Dmitriy789 [7]
Hello! For this sequence, you are decreasing. In this case, A and C are definitely out, because they are positive, not negative. The formula for sequence is a1 + (n -1)d, where a1 = first term and d = common differnce, The first term is 12 and the common difference is -6. "n" is the order of the sequence and n = 30. 30 - 1 is 29. 29 * -6 is -174. Now, we add 12 to that total and when we add, we subtract the numbers, and then place the negative sign back in. 174 - 12 = 162. Plug in the negative symbol to get -162. There. -162 is the 30th term in the sequence. The answer is D: -162.
4 0
3 years ago
Read 2 more answers
State if each triangle is acute, obtuse,or right using Pythagorean theorem converse.
shtirl [24]

Answer:

Right triangle

Step-by-step explanation:

Properties for acute, obtuse or right triangle,

1). Given triangle will be a right triangle if,

   Hypotenuse² = (Leg 1)² + (Leg 2)²

2). Triangle will be an acute triangle if,

   (Largest side)² < (leg 1)² + (leg 2)²

3). Triangle will be an obtuse triangle if,

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Now we apply these properties in the given triangle,

(Largest side)² = (√11105)²

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(leg 1)² = (76)²

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(leg 2)² = (73)²        

            = 5329

Since 11105 = 5776 + 5329 (First Property)  

11105 = 11105

Therefore, given triangle is a right triangle.

3 0
3 years ago
Which expression correctly represents “ten times the difference of a number and six”?
krok68 [10]

Answer: 10(x-6)

Step-by-step explanation:

8 0
3 years ago
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