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2 years ago

Question 12 (2 points)

Mathematics

1 answer:

Solnce55 [7]2 years ago

5 0

Answer:

Option D

Step-by-step explanation:

Hackers send fraudulent emails and social media requests to people and once a person clicks on any such link, the hacker gets the access to the device and in most of the cases, apart form leaking of personal details there has been problem of unethical money transfers/frauds.

Hence, option D is an internet security issue

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What is the volume of a right circular cone if the circumference of the base is 125.6 ft and the height is 75 ft.? Use π=3.14 an

Alex_Xolod [135]

Answer:

The volume of a right circular cone is $31400\ \text{feet}^3$ .

Step-by-step explanation:

The circumference of the base of a right circular cone is 125.6 ft.

Height of cone is 75 ft.

Circumference of base is :

$C=2\pi r$ , r is radius

$r=\dfrac{C}{2\pi}\\\\r=\dfrac{125.6}{2\times 3.14}\\\\r=20\ ft$

The volume of a cone is given by :

$V=\dfrac{1}{3}\pi r^2 h\\\\V=\dfrac{1}{3}\times 3.14\times (20)^2\times 75\\\\V=31400\ \text{feet}^3$

So, the volume of a right circular cone is $31400\ \text{feet}^3$ .

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3 years ago

Roger wants to carpet a rectangular room with length of 8 3/4 feet and a width of 9 1/3 feet. If he has 85 square feet of carpet

Dima020 [189]

Answer:

12.66 $ft^2$

Step-by-step explanation:

Given the dimensions of the room are $8\frac{3}{4}$ = $\frac{31}{4}$ and $9\frac{1}{3}$ = $\frac{28}{3}$ .

The area of the room = $length*width$

Area= $\frac{31}{4} *\frac{28}{3}$

Area=72.33 $ft^2$

The area of the carpet=85 $ft^2$

The area of carpet left= Total area of carpet - the area of the room

The area of carpet left= 85-72.33=12.66 $ft^2$

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3 years ago

Two students wanted to race 100 yards across a football field. How many feet will they run? (

Molodets [167]

Answer:

300 feet

Step-by-step explanation:

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2 years ago

What is the degree of x4 – 3x + 2?

mihalych1998 [28]

Answer: 4

Step-by-step explanation:

The degree is the highest exponent , in which in this problem it is 4. The 3x counts as an exponent of 1 because the variable x is 1, and the 2 counts as an exponent of zero. Which means the degree is 4.

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3 years ago

20 yards for $30.00

sertanlavr [38]

A) $55.00
65 yards for $85.00 subtract
20 yards for $30.00
85-30=55

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3 years ago