3 years ago

PLSSSSS HELPPPPPP MEEEE!!!!! I WILL MARK U!!!!!!!

Mathematics

1 answer:

andreyandreev [35.5K]3 years ago

7 0

Substitute the value of y in the equation as -1,

(-1)^2-31(-1)-17 = 1+31-17 = 15

You might be interested in

Find the area of the blue sector of the circle. Round to the nearest hundredth.

Varvara68 [4.7K]

A diagram must be associated with the question above. Based on what I researched, this is what I got.

The blue sector of the circle is 120 degrees.

area of the blue sector = 1/3 of pi * 2^2
= 4.19cm2

I hope this answer helps.

8 0

3 years ago

What is the solution to the inequality +4 50?

kicyunya [14]

Answer:

d<-1.75

Step-by-step explanation:

4 0

3 years ago

Make x the subject of the formula 6x+a=5

Tatiana [17]

You would -a to get 6x=5-a then divide by 6 which you would get your final answer which is x=5-a/6

7 0

3 years ago

there are five people in a room each person shakes the hand of every person exacally once how many handshakes or exchanged

nalin [4]

25 because there's 5 people so you take 5 times 5

5 0

3 years ago

Kenny wants to learn how to serve overhand in volleyball. When he practiced yesterday, he made 7 serves over the net for every 2

Yakvenalex [24]

Answer: 28

Step-by-step explanation:

Given

Kenny made 7 serves over the net for every 2 serves that did not go over the net i.e. success rate of Kenny is

$\Rightarrow \text{success rate}=\dfrac{7}{2+7}\times 100=\dfrac{700}{9}\%$

for 36 serves, applying the same success rate, it is

$\Rightarrow \text{success rate}=\dfrac{700}{9}\times\dfrac{1}{100}\times 36=28$

Serves that did not make over the net is $36-28=8$

Thus, Kenny will make 28 serves that make over the net

8 0

3 years ago