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sergiy2304 [10]
3 years ago
5

What are the dimensions of the outside rectangle?

Mathematics
1 answer:
Inessa [10]3 years ago
5 0

Outer Square perimeter minus inside perimeter equals outside square perimeter

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The teacher collected some snowfall data during one of the snow days last year. Estimate the total snowfall throughout the day.
Sedaia [141]

The total snowfall throughout the day is the expected value of the distribution.

The estimated total snowfall during the day is 30 inches

Start by calculating the average rate of snow collected on that day.

Rate = \frac{0 + 1.5 + 2.5 + 2.0 +1.0 +0.5}{6}

This gives

Rate = \frac{7.5}{6}

Divide 7.5 by 6

Rate = 1.25

There are 24 hours in a day.

So, the total snowfall is:

Total  = Rate \times Hours

This gives

Total  = 1.25 \times 24

Multiply

Total  = 30

Hence, the estimated total snowfall during the day is 30 inches

Read more about expected values at:

brainly.com/question/13005177

3 0
2 years ago
I need help me with number 7
Lina20 [59]
-7=-9+n/8
Add 9 to both sides
2=n/8
Multiply 8 on both sides
Final Answer: 16=n
4 0
3 years ago
The game I want costs $60, but I only have $28 in my checking account. If I tried to buy this I would have _____.
Bogdan [553]

Answer:

$-32

Step-by-step explanation:

8 0
2 years ago
X^2 - 2x = 15 how do I solve this quadratic method?<br>I am stuck on it.... please help<br>​
Anarel [89]

Answer:

(x - 5)(x + 3)

Step-by-step explanation:

to solve x² - 2x = 15, we need to get all the terms on one side so we can solve the quadratic equation using factoring. to do this, we subtract 15 from both sides

x² - 2x = 15

- 15         -15

x² - 2x - 15 = 0

now we can factor. we need 2 numbers that when multiplied together give us -15, and when those 2 numbers are added together we get -2

because we have a -15, we can assume that one number must be negative and the other positive, as a negative times a postive is a negative.

we can use 3 and -5 as factors and test it out. we put x in front because we have an x²

(x - 5)(x + 3) < we can FOIL to check to see if this is correct. its not mandatory to check but when you arent sure of the answer you can FOIL it out

FOIL stands for: First, Outside, Inside, and Last terms

F: (x - 5)(x + 3) = x²

O: (x - 5)(x + 3) = -3x

I: (x - 5)(x + 3) = 5x

L: (x - 5)(x + 3) = -15

x² + 3x - 5x - 15 < subtract 3x from 5x

x² - 2x - 15

this checks out, so our answer is (x - 5)(x + 3)

6 0
2 years ago
Read 2 more answers
The solution set for <br> 6a^2-a-5=0
Alex_Xolod [135]

Answer:

a=1 or a=5/6

Step-by-step explanation:

I'm going to attempt to factor 6a^2-a-5

a=6

b=-1

c=-5

Find two numbers that multiply to be a*c and add to be b.

a*c=-30                                   =-6(5)

b=-1                                          =-6+5

So replace -a with -6a+5a in the expression we started with

6a^2-6a+5a-5

now we factor by grouping

6a(a-1)+5(a-1)

(a-1)(6a-5)

Now let's solve the equation:

(a-1)(6a-5)=0

So a=1 or a=5/6

4 0
3 years ago
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