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balandron [24]
3 years ago
15

Use fractions to explain why 4.5 x 0.5 equals 2.25.

Mathematics
1 answer:
kkurt [141]3 years ago
5 0

Answer:

4 1/2 x 1/2

9/2 x 1/2 = 9/4

9/4 = 2 1/4

Step-by-step explanation:

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a classroom is arranged with 10 seats in the front row 12 seats in the middle row and 18 seats in the back row the teacher rando
myrzilka [38]

Answer:

3/10

Step-by-step explanation:

12/40 = 3/10

8 0
3 years ago
What is the solution set of 4x^2 - 36 = 0?
Leto [7]
 <span>4x^2 - 36 = 0 ( Original equation ) 

4x^2 = 36 ( Add 36 to both sides ) 

x^2 = 9 ( Divide by 4 on both sides ) 

x = 3 , -3 ( Take the square root of 9 ) 

Solution set: { +3 , -3 } answer is x = +3 , x = -3</span>
6 0
3 years ago
Read 2 more answers
dion places a ladder against The side of his house as shown in the diagram below. Dion’s water is 26 feet long, and he places th
gregori [183]

Complete question :

dion places a ladder against The side of his house as shown in the diagram below. Dion’s water is 26 feet long, and he places the ladder at a 70° angle with the ground, How high does the ladder reach up the side of the building?.

Answer:

24.43 feets

Step-by-step explanation:

Using trigonometry :

Sinθ = opposite / hypotenus

Opposite = height, h

Hypotenus = 26

Sin 70° = h / 26

0.9396926 * 26 = h

height, h = 24.43 feets

6 0
3 years ago
2. You are creating a cone-shaped hat for a kid’s costume. You measure the circumference of the child’s head and find it to be 2
Monica [59]
Just draw a triangle(front view) and the slant/inclined sides of it are known to be 8 and you found out radius as 3.26. so mark the diameter by doubling radius.

so the material required would be a slice(like pizza slice) of a circle of radius= 8 and arc length = circumference given ,that is 20.5

now using this find the area of sector/slice. its the answer to the last bit.

now coming to next question, go to the kitchen and take any can and measure its dia and height by using a scale. and you might already know the formula to find the suface area of cylinder.
3 0
3 years ago
A blazer cost $38 and you pay $39.90. how much is the sales tax rate
geniusboy [140]
To find the percentage, you divide the new price ($39.90) by the original price ($38), and the multiply it by 100 to change the answer from a decimal to a percentage:

39.90 / 38 x 100 = 105

So 39.90 is 105% of 38

To get our final answer, subtract this by 100%

105 - 100 = 5%

ANSWER: So the percentage increase of the price is 5%  ($1.90)

5 0
3 years ago
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