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RideAnS [48]
3 years ago
15

Can someone help me with this paper for homework please

Mathematics
2 answers:
andrey2020 [161]3 years ago
3 0
1. 393
2. Abby has about 1,248 in total
3. it can be subtracted 320 times
4. 3,032
5. 27,315
6. 287, then estimate 287x6=1,722
7. 
geniusboy [140]3 years ago
3 0
1. 2322
2. 1248
3. 320
4. 3032
5. 27315
6. 287
7. 4

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Use summation notation to express each of the following calculations Add the scores and square the sum O 2(SX) Square each score
iragen [17]

a)

Add the score and then square the sum.

By using the summation notation we can write the above statement is (Σx)²

b)

Square each score and then add the squared values.

By using the summation notation we can write the above statement is Σx²

Subtract 2 point from each score and then add the resulting values.

By using the summation notation we can write the above statement is  Σ(x-2)

Subtract 1 point from each score and square the resulting values. Then add the squared values.

By using the summation notation we can write the above statement is Σ(x-1)²

7 0
4 years ago
Answer please with explanation thank you
natulia [17]

Answer:

Shape a has 1 order of rotational symmetry and 1 line of symmetry

Shape b has 2 orders of rotational symmetry and 0 line of symmetry

Rotational symmetry is how many times a shape can be rotated and look the same.

Lines of symmetry are how lines can be put through the shape to make it symmetrical or the same on both sides

6 0
3 years ago
The number of days ahead travelers purchase their airline tickets can be modeled by an exponential distribution with the average
agasfer [191]

Answer:P(x<10) =0

Step-by-step explanation:

M =1/μ

M= 1/15 =0.066667

X- Exp (0.066667)

Where: X is the random variable for number of days

P (X<x) = 1 - e^-mx

P(X - x) = 1 - e^-0.06666 x10

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3 0
3 years ago
2x+3y=5,x+y=1 using graphical method in simultaneous equation​
kifflom [539]

Answer:

(-2,3)

Step-by-step explanation:

I used Desmos to input these 2 equations and then locate the point(s) at which they intersect.  Since these are both linear, there will be either 1 solution or none at all, but in this case, there is one solution, and it is at the point (-2,3) which is where the 2 graphs intersect.

5 0
2 years ago
The ratio of roosters to chickens is 2 to 8. If there are 5 roosters, how many chickens are there?
Aloiza [94]
Roosters to chickens is 2 to 8

That means where there are 2 roosters, there are 8 chickens.

Simplify the ratio 2:8
The ratio can be simplified to 1:4

So, for 1 rooster, there are 4 chickens.

Now, the question says that if there are 5 roosters, how many chickens will there be?

1 rooster to 4 chickens
5 roosters to ? chickens

We went from 1 rooster to 5 rooster. We multiplied by 5.
To find out how many chickens there are for 5 roosters, multiply 4 chickens by 5.

4 * 5 = 20

Where there are 5 roosters, there will be 20 chickens.

Another way to solve is as follows:

\frac{2}{8} =\frac{5}{x}\\\\\sf{Cross~multiply}\\\\2x = 5\times 8\\\\2x = 40\\\\x = 20\\\\\boxed{\bf{x=20}}

Your final answer is 20 chickens.<span />
3 0
4 years ago
Read 2 more answers
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