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Studentka2010 [4]
2 years ago
11

I need help please I need it ASAP

Mathematics
1 answer:
Bess [88]2 years ago
7 0

Answer:

Step-by-step explanation:

Answers and explanations in attachment.  Problem 29 was cut off a bit.  I assumed the question was what percent of the total are cubs.

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Two trains leave the station at the same time, one heading west and the other east. The westbound train travels at 80 miles per
Deffense [45]

Answer:

1.4 hour, or 1 hr 24 min

Step-by-step explanation:

The trains separate at the rate (80 + 90) mph.

Recall that distance = rate times time, or time = distance / rate.

                                            238 mi

Here, the elapsed time is  -------------- = 1.4 hr, or 1 hr 24 min

                                             170 mph

3 0
3 years ago
Whole page for 81! Good luck!
OLEGan [10]

Answer:

Prime number: A prime number has factor of only 1 and itself.

Ex: 3: 1 and 3 are the only ways to compose 3.

A whole number that has factors other than 1 and itself is called a composite number.

Ex: 8: the factors of 8 include 1,2,4,8

Circle 5,7,2,19,3,11

Box 18,20,22,16,15,30,26,38,45,10,21,6,14

To determine the prime factorization of a number, you must break down a number into its factors. (im not sure?)

Continute until all of the factors are (im not sure)

Prime factorization is written exponential form (im not quite sure)

30= 2x3x5

30= 2^1 3^1 5^1

24=2 × 2 × 2 × 3

24= 2^3 x 3

sorry idrk if they are all right

6 0
3 years ago
-x+7-6x=19-7x<br>Determine whether this has one solution, no solution, or infinitely many solutions
rewona [7]
Reduces to ,7=19. no solutions
6 0
3 years ago
Vertex of x^2-10x+30
Shtirlitz [24]

The easiest way to find the vertex is to convert this standard form equation into vertex form, which is y = a(x - h)^2 + k.

Firstly, put x^2 - 10x into parentheses: y = (x^2 - 10x) + 30

Next, we want to make what's inside the parentheses a perfect square. To do that, we need to divide the x coefficient by 2 and square it. In this case, the result is 25. Add 25 inside the parentheses and subtract 25 outside of the parentheses: y = (x^2 - 10x + 25) + 30 - 25

Next, factor what's inside the parentheses and combine like terms outside of the parentheses, and your vertex form is: y = (x - 5)^2 + 5.

Now going back to the formula of the vertex form, y = a(x - h)^2 + k, the vertex is (h,k). Using our vertex equation, we can see that the vertex is (5,5).

3 0
3 years ago
Read 2 more answers
HEEEELLLLP PPPPLLLLLZZZZ T^T
Rashid [163]

Answer:

1st pic: -25<-20

2nd pic: point c

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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