Which of the following groups of numbers are all prime numbers? A. 2, 5, 15, 19 B. 7, 17, 29, 49 C. 2, 3, 5, 9 D. 3, 11, 23, 31
Ivanshal [37]
Some prime numbers
2,3,5,7,11,13,17,19,23,29,31
just try to divide by those and if you an, then it isn't prim
A. 15/3=5 so not prime
B. 49/7=7, not prime
C. 9/3=3 not prime
D. all prime
answe ris D
Answer:
asd
Step-by-step explanation:
aasdd
Answer: Bonnie must purchase 25 square feet of cloth.
Step-by-step explanation:
In order to waste the least amount of material, the length of each side of the square piece of cloth must be equal to the diameter of the circular banner that she wants to cut out. The formula for determining the circumference of a circle is expressed as
Circumference = πd
Where
d represents the diameter of the circle
π is a constant whose value is 3.14
Since banner will have a circumference of 15.7 ft, then
3.14d = 15.7
d = 15.7/3.14
d = 5 ft
Area of the square cloth needed is
5² = 25 square feet
The answer is B! Hoped I help
You have not provided a diagram, therefore, I cannot provide you with the exact solution.
However, I will try to help you with the procedures on how to get the area of trapezoid and you can apply on the diagram you have.
Now, area of trapezoid can be calculated using the following rule:
area of trapezoid =
![\frac{b1 + b2}{2} * h](https://tex.z-dn.net/?f=%20%5Cfrac%7Bb1%20%2B%20b2%7D%7B2%7D%20%2A%20h)
where:
b1 is the length of the first base
b2 is the length of the second base
h is the height of the trapezoid
The bases are the two parallel sides in the trapezoid
To better illustrate this, consider the attached diagram.
We have:
b1 = 5 m
b2 = 8 m
h is the perpendicular height = 4 m
Area =
![\frac{5+8}{2} *4](https://tex.z-dn.net/?f=%20%5Cfrac%7B5%2B8%7D%7B2%7D%20%2A4)
= 26 m²
Hope this helps :)