All categories

2 years ago

Please help me with this please and thank you

Mathematics

1 answer:

Alina [70]2 years ago

3 0

Step-by-step explanation:

y = ax^n + bx^(n-1) ... + z

(0, 1) tells us that the constant term z = 1.

because x = 0 eliminates all other terms. and as the sum is 1, that means z = 1.

for the other pairs I strongly suspect

(-1, 3) : 2×(-1)² + 1 = 2×1 + 1 = 3

(-2, 9) : 2×(-2)² + 1 = 2×4 + 1 = 9

so, the fitting equation is

y = 2x² + 1

You might be interested in

A college sends a survey to members of the class of 2012. Of the 1254 people who graduated that year, 672 are women, of whom 124

Svetllana [295]

Answer:

a) $P(F) = \frac{672}{1254}=\frac{112}{209}=0.536$

b) $P(M) = \frac{582}{1254}= \frac{97}{209}=0.464$

c) $P(A') = 1-P(A) = 1- \frac{124}{672}= \frac{137}{168}=0.815$

Step-by-step explanation:

For this case we have a total of 1254 people. 672 are women and 582 are female.

We know that 124 women wnat on to graduate school.

And 198 male want on to graduate school

We can define the following events:

F = The alumnus selected is female

M= The alumnus selected is male

A= Female and attend graduate school

And we can find the probabilities required using the empirical definition of probability like this:

Part a

$P(F) = \frac{672}{1254}=\frac{112}{209}=0.536$

Part b

$P(M) = \frac{582}{1254}= \frac{97}{209}=0.464$

Part c

For this case we find the probability for the event A: The student selected is female and did attend graduate school

$P(A) =\frac{124}{672}=\frac{31}{168}=0.185$

And using the complement rule we find P(A') representing the probability that the female selected did not attend graduate school like this:

$P(A') = 1-P(A) = 1- \frac{124}{672}= \frac{137}{168}=0.815$

4 0

3 years ago

0.25% of 42 is what number

Alborosie

Answer:

0.105

Step-by-step explanation:

0.25/100 x 42 = 0.105

6 0

2 years ago

Read 2 more answers

A gorilla needs to eat at least 40 pounds of food each day. The zoo feeds the gorilla using canisters that contain 4 pounds of f

Firdavs [7]

3 more canisters explanation: 40/4=10, 28/4=7, 10-7=3 more canisters

8 0

3 years ago

Read 2 more answers

#8 PLEASEEEENENDBBXNFJDNNFNBCBCC

Natasha2012 [34]

Answer:

a) 45° b) 90°

Step-by-step explanation:

squares have 90 degree angles and half of that is 45

7 0

2 years ago

15x – 3y = 2 I need the slope

Jlenok [28]

Answer:

Step-by-step explanation:

6 0

3 years ago