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dolphi86 [110]
3 years ago
8

Another easy one, Brainliest + 35 Points. per the usual

Mathematics
2 answers:
Verdich [7]3 years ago
8 0

Answer: Its the 4th choice

Step-by-step explanation:

-12 + 8 = -4

borishaifa [10]3 years ago
3 0

Answer:

-12 +8

Step-by-step explanation:

-12/-3 = positive 4

5 - -9 = 5+9 = 14

(-2) ^ = -2 * -2 =4

-12 +8 = -4

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- 16 + ( - 12 ) - ( - 40 )<br>​
Alex_Xolod [135]

Answer:

12

Step-by-step explanation:

Its 12 because when you do -16 + - 40.... then -12 you get =12 There you go

6 0
2 years ago
Read 2 more answers
What is the total cost of an item that cost $43 when you add the sales tax (.0825)?
LuckyWell [14K]

Answer:

43.0825

Step-by-step explanation:

I don't know if the tax is percentage or just adding

7 0
3 years ago
An unprepared student makes random guesses for the ten​ true-false questions on a quiz. Find the probability that there is at le
hoa [83]

Answer:

0.999

Step-by-step explanation:

At least 1 correct means, 1 correct, 2 correct, 3 correct ... until 10 correct. That would be a long process to calculate.

<em>Instead we use the complement rule to calculate.</em>

<em>P(x\geq1)=1-P(x</em>

<em />

<em>So we need to find P(x<1). So this is getting 0 answers correct, or 10 incorrect.</em>

<em />

In true false question, probablity of correct is 1/2 and incorrect is 1/2, hence,

Probability of 10 incorrect is (1/2)^10

Thus,

P(x\geq1)=1-(\frac{1}{2})^{10}=0.999

So the answer is 0.999 (rounded to nearest thousandth)

3 0
3 years ago
Please help me! And can you please show how you found the answer?
Pani-rosa [81]

Answer:

what is the question I didn't get it please explain what we have to find


Step-by-step explanation:


7 0
3 years ago
Read 2 more answers
Mrs. Ishimitsu is installing a rubber bumper around the edge of her coffee table. The dimensions of the rectangular table are (2
ollegr [7]

Answer:

2x^2+8x-30 represents the total perimeter of the table, and if x = 3 the lentgh of entire rubber bumper is 12 feet.

Step-by-step explanation:

Perimeter is defined as the sum of sides.

For a rectangle having dimension length 'L' and breadth 'B' Since, rectangle has two sides equal.

Perimeter of rectangle = 2 ( length + breadth )

Here, given rectangle has dimension

Length = 2x^2-16 and breadth = -x^2+4x+1

Thus, perimeter of rectangle = 2(2x^2-16+(-x^2+4x+1))

                                              =2(2x^2-16-x^2+4x+1)

                                               =2(x^2+4x-15)

                                                =2x^2+8x-30

Thus, perimeter of rectangle is 2x^2+8x-30   ........(1)

Perimeter of rectangle , when x = 3,

Put x= 3 in (1) ,

2x^2+8x-30\Rightarrow 2(3)^2+8(3)-30 \Rightarrow 18+24-30=12

Thus, 2x^2+8x-30 represents the total perimeter of the table, and if x = 3 the lentgh of entire rubber bumper is 12 feet.




5 0
3 years ago
Read 2 more answers
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