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denis23 [38]
3 years ago
9

Subtract. (4x2+8x−2)−(2x2−4x+3) Enter your answer, in standard form, in the box.

Mathematics
1 answer:
Crazy boy [7]3 years ago
3 0

the answer is 2x2+12z-5 (its also in the picture)

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Ciara, an ornithologist, has 444 bird feeders at separate locations. She wonders if birds are equally likely to visit each of th
dybincka [34]

The expected count of visits is the mean or average visits to each feeder

The expected count of visits to the third feeder is 87.5

<h3>How to determine the expected count of visit?</h3>

The table of values is given as:

Feeder                 1   2    3   4

Observed visits 80 90 92 88

In this case, the null hypothesis implies that the visits to each feeder are uniformly distributed

So, the expected count is calculated using:

Expected count =Visits/Feeders

This gives

Expected count = 350/4

Evaluate the quotient

Expected count = 87.50

Hence, the expected count of visits to the third feeder is 87.5

Read more about chi square goodness of fit test at:

brainly.com/question/4543358

7 0
2 years ago
Distance between two points <br> (-5,5) and ( 3,-3)
stiks02 [169]

Answer:

8\sqrt{2}

Step-by-step explanation:

Using the pythagorean theorem, you can find that the distance between the two points is \sqrt{(3-(-5))^2+(5-(-3))^2}=\sqrt{128}=8\sqrt{2}. Hope this helps!

7 0
4 years ago
If A, B, and C are collinear, and AB = 18, AC = 41, what is a possible measure of BC?
ikadub [295]

Step-by-step explanation:

As ANC are collinear,

AB+BC=AC

so,

18+BC = 41

BC = 41-18

BC = 23 is the answer.

8 0
4 years ago
Read 2 more answers
Justify your reasoning
love history [14]

Answer:

Yes

Step-by-step explanation:

You can conclude that ΔGHI is congruent to ΔKJI, because you can see/interpret that there all the angles are congruent with one another, like with vertical angles (∠GIH and ∠KIJ) and alternate interior angles (∠H and ∠J, ∠G and ∠K).

We also know that we have two congruent sides, since it provides the information that line GK bisects line HJ, meaning that they have been split evenly (they have been split, with even/same lengths).

<u><em>So now we have three congruent angles, and two congruent sides. This is enough to prove that ΔGHI is congruent to ΔKJI,</em></u>

<u><em /></u>

7 0
3 years ago
El costo total en pesos para producir calcomanías,es el monto del alquiler del local más 1.5 veces el número de calcomanías prod
Nonamiya [84]

Answer:

.......................................................

5 0
3 years ago
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