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tekilochka [14]
2 years ago
14

Please help thank you soooo much

Mathematics
2 answers:
DIA [1.3K]2 years ago
7 0

Answer:

Question 5 - 30 seconds

Question 6 - 7.5

Step-by-step explanation:

For question 5, just check and think, if it was 1 min per block, it would take 10 mins not 5. Which leads to 30 seconds.

For question 6, All I did was multiply all the answers by 40 and then check which equals 300.

gayaneshka [121]2 years ago
3 0
2 minutes and $7.50 would be the answer please put me down as brainliest
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Please I need someone to help my assignment​
Nadusha1986 [10]
(x-4)² + (x-2)² = x²

(x² - 8x + 16 ) + (x² - 4x + 4) = x

2x² -12x + 20 = x

2x²-12x + 20 - x = 0

2x² - 13x + 20 = 0

(2x-5) (x-4) = 0

2x-5 = 0

2x = 5

x = ⁵/₂


x-4 = 0

x = 4



so x₁ = ⁵/₂ , and x₂ = 4
4 0
2 years ago
What is the length of QR?
Elena L [17]

Answer:

C

Step-by-step explanation:

Since the triangle is right with hypotenuse QR

Use Pythagoras' identity to solve for QR

The square on the hypotenuse is equal to the sum of the squares on the other two sides, that is

QR² = 8² + (8\sqrt{3} )²

       = 64 + 192

       = 256 ( take the square root of both sides )

QR = \sqrt{256} = 16

7 0
3 years ago
Celeste needs to create a keyword map that branches out from an image of the solar system. Which image best
Veseljchak [2.6K]

Answer:

The Correct Answer Is C

Step-by-step explanation:

4 0
3 years ago
The table represents the observed number of leaves y on x branches of a tree. Calculate the rate of change between 3 and 4 branc
Dennis_Churaev [7]

Answer:

<h2>25</h2>

Step-by-step explanation:

The rate of change of number of tree y on x branches of a tree is expressed as shown;

m = Δy/Δx where;

m is the rate of change

Δy is the change in number of leaves  between 3 and 4

Δx is change in number of branches  between 3 and 4

m = Δy/Δx = y₂-y₁/x₂-x₁

From table between 3 and 4, y₂ = 100, y₁ = 75, x₂ = 4, x₁ = 3

m = 100-75/4-3

m = 25/1

m = 25

<em>Hence the rate of change between 3 and 4 branches is 25</em>

5 0
3 years ago
Please help me solve this
andre [41]

Answer:

Step-by-step explanation:

This number is much larger than 1. You need to start at the decimal and move left (that's how scientific notation works for numbers larger than 1.)

So the answer is 1.0054 * 10 ^7

The person doing this started at the 1 and moved right until he/she hit the decimal. Wrong direction.

7 0
2 years ago
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