2 years ago

Please help! Must get done ASAP!!! ^^

Mathematics

2 answers:

pentagon [3]2 years ago

3 0

Answer:

Yes

Step-by-step explanation:

Try it.

lara [203]2 years ago

3 0

Answer: 1st: No, 2nd: No, 3rd: Yes, 4th: Yes

Step-by-step explanation: You only flip the inequality when you divide a negative number on both sides. The only reason why you would divide would be to get the variable by itself - in this case the coefficient would need to be negative. That only applies to the third and 4th equations.

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What is the first term in a geometric sequence if the common ratio is −4 and the sum of the first four terms is −255?

posledela

Sn=A1(1-r^n)/(1-r)
Sum of a finite geometric series formula
We know the sum, number of terms and rate, so you plug those in.
-255=A1(1-(-4)^4))/(1-(-4)
-255=A1(1-256)/5
-255=A1(-255)/5
-1275=A1(-255)
5=A1

Hope this helped! Let me know if you have any questions.

8 0

2 years ago

bill and sam have a coupon for a pizza with 1 topping. The choices of toppings are: pepperoni, sausage, mushrooms, green peppers

cricket20 [7]

Well there are 6 toppings. For one person to select sausage, it is $\frac{1}{6}$ . For two people, multiply them together and the probability is $\frac{1}{36}$