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3 years ago

Need help plz ? School tommarow

Mathematics

1 answer:

Nuetrik [128]3 years ago

5 0

2 multiply the number of calories it took for one sport by two . 48 times 0.063 subtract that from 1360 and divide that from the number you get after subtracting I'm not one hundred persent sure so get some other sources to back this up be for you write it down

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Whats the solution to this equation y=3x+7 y=-2x+3 (1,-4) (-2,-7) (-2,1) (1,10)

joja [24]

Answer:

I love algebra anyways

The ans is in the picture with the steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

5 0

3 years ago

The sum of the angle measures of a polygon with s sides is 2340. find s.

Leviafan [203]

S=15

Whatever the number of sides of a polygon,

the sum of its exterior angles is always 360∘

Further, each pair of exterior angle and interior angle adds up to 180∘

Hence in a polygon with s sides (or angles),

the sum of all the interior and exterior angles would be 180∘×s

and sum of interior angles would be 180∘×n−360∘=180∘(s−2)

As sum of angles is 2340∘

Hence, 180(s−2)=2340 or s−2=2340180=13

and s=13+2=15 and polygon is a Pentadecagon.

i hope u understand :)

8 0

4 years ago

Read 2 more answers

A prime number is a number that is evenly divisible only by 1 and itself. The prime numbers less than 100 are listed below.2 3 5

Usimov [2.4K]

Answer:

a. 0.96 = 96% probability that the number is odd.

b. 0.48 = 48% probability that the sum of the digits is odd.

c. 0.24 = 24% probability that the number is greater than 70.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

We are given the prime numbers less than 100, they are:

2,3,5,7,11,13,17,19,23,29,31,37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97

There are 25 prime numbers less than 100.

a. The number is odd

Of the 25, 24 are odd, only the number 2 is even. So

24/25 = 0.96 = 96%

0.96 = 96% probability that the number is odd.

b. The sum of the digits is odd

The sum of the digits is odd for:

3, 5, 7, 23, 29, 41, 43, 47, 61, 67, 83, 89. So for 12 of them

12/25 = 0.48 = 48%

0.48 = 48% probability that the sum of the digits is odd.

c. The number is greater than 70

71, 73, 79, 83, 89, 97. 6 of them

6/25 = 0.24 = 24%

0.24 = 24% probability that the number is greater than 70.

5 0

3 years ago

plz help thanks so much if you help

Delicious77 [7]

Answer:

$n^2 + \frac{2n}{3} + \frac{1}{9} = \frac{1}{9}$ -- Perfect square trinomial

$(n + \frac{1}{3})^2 = \frac{1}{9}$ ---Binomial squared

Step-by-step explanation:

Given

$n^2 + \frac{2n}{3}$

Solving (a): Perfect square trinomial

We have:

$n^2 + \frac{2n}{3}$

Express as an equation

$n^2 + \frac{2n}{3} =$

Start----------------------------

Take coefficient of n i.e. (2/3)

Half it: i.e. (1/3)

Square it: (1/63^2

Add to both sides of the equation

---------------------------End

So, we have:

$n^2 + \frac{2n}{3} + (\frac{1}{3})^2 = (\frac{1}{3})^2$

Remove brackets

$n^2 + \frac{2n}{3} + \frac{1}{9} = \frac{1}{9}$

Solving (b): Binomial Squared

$n^2 + \frac{2n}{3} + \frac{1}{9} = \frac{1}{9}$

Expand

$n^2 + \frac{n}{3}+ \frac{n}{3} + \frac{1}{9} = \frac{1}{9}$

Factorize:

$n(n + \frac{1}{3})+ \frac{1}{3}(n + \frac{1}{3}) = \frac{1}{9}$

Factor out n + 1/3

$(n + \frac{1}{3})(n + \frac{1}{3}) = \frac{1}{9}$

Express as square

$(n + \frac{1}{3})^2 = \frac{1}{9}$

4 0

3 years ago

What is the range of possible sizes for side x

Xelga [282]

Answer:

0.5 < x < 16.5

Step-by-step explanation:

For a triangle (by the triangular inequality theorem), we know that the sum of any two sides must be larger than the other side.

When we have a triangle and we know two sides, let's define the measures of these sides as S1 and S2. (such that S2 > S1)

By the first property, we will have that S1 + S2 > S3

Where S3 is the third side, the one that we do not know.

But there is also a lower restriction, given by:

S2 - S1 < S3 < S1 + S2

This is because we also must have:

S1 + S3 > S2

and

S2 + S3 > S1

We can rewrite both of these to get:

S2 - S1 < S3

S1 - S2 < S3

Because S2 > S1, the first inequality is more restrictive, so we need to use that one.

Then we get the inequality:

S2 - S1 < S3 < S1 + S2

Ok, in this case, the shorter side is 8.0 then:

S1 = 8.0

And the longer side is 8.5, then:

S2 = 8.5

And the third side is x, S3 = x

Replacing those in our inequality, we get:

8.5 - 8.0 < x < 8.5 + 8.0

0.5 < x < 16.5

This is the range of possible sizes for side x.

3 0

3 years ago