Help me!!! please :( 4 a) b) c) d)

Answers

Answer 1

Answer: A. hexagonal prism

B. lateral area is the not hex sides
6 sides, 4 by 10
6*4*10=240 cm^2

C. area of a hexagon is ((3s^2)√3)/2 where s is side legnth
A=((3(6)^2)√3)/2
A=((3(36))√3)/2
A=(108√3)/2
A=54√3
2 bases so times 2
A=108√3 cm^2

D. total is LA+thing calclated in previous step
240+108√3 cm^2

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a rectangular plot of land is 100 feet long and 50 feet wide how long is the walkway along the diagonal? round to the nearest foot.
(07.02 MC)An equation is shown below: 5(3x − 4) = 1 Which of the following correctly shows the first two steps to solve this equation? Step 1: 15x − 20 = 1; Step 2: 15x = 21 Step 1: 15x − 4 = 1; Step 2: 15x = 5 Step 1: 8x + 1 = 1; Step 2: 8x = 0 Step 1: 8x − 9 = 1; Step 2: 8x = 10
T/9=35/6 what is this portion
A full-length mirror cost $144.99 when the CPI was 163. What will a full-length mirror cost when the CPI is 211, to the nearest cent?a) $305.93 b) $214.59 c) $187.68 d) $88.95 If it's not too much to ask, could you thoroughly explain it with exact steps so I can do it myself. Thank you plenty.

The tub of a washer goes into its spin cycle, starting from rest and gainiing angular speed steadily for 8.0 s when it is turning at 5.0 rev/s. At this time the person doing the laundry opens the lid and a safety switch turns off the washer. The tub smoothly slows to rest in 12.0 s. Through how many revolutions does the tub turn whil it is in motion.

Answers

Angular acceleration is change of angular velocity over time:
α = 5 / 8 = 0.625 rev / s²
Number of revolutions of the 1st part:
α · t² /2 = 0.625 * 8² / 2 = 20 rev.
The 2nd part:
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What is the basic unit of weight in the metric system

Answers

Welllll ... Weight is not actually a 'basic' unit at all.

'Mass' is, and its unit is the kilogram.

'Weight' is a 'force' ... a derived unit ... made up
of mass and acceleration. The unit of force is
the (kg-meter/sec²), called the "Newton"

(1 newton) is the force that accelerates (1 kilogram of mass)
at the rate of (1 meter per second) every second.

the area of the rectangle is 85 cm. express the perimeter of the rectangle is function of the width x.

Answers

$the \ width : \ x \n the \ length : \ y \n The area : \ A=85 \n \nA=xy \n \n85=xy\n \ny= (85)/(x)$

f(x)=85-2(y) I think it is so .

Perimeter of a triangle with the given sides 12in 9in 15in

Answers

36 in for the triangle the perimeter is the outside length so it...

to find a perimeter add all the sides of the shape. so 12+9+15 is 36. the perimeter of the triangle is 36

A toddler crawled 2 yards, stopped, then continued to crawl 8 more feet. How many feet did he travel in total?

Answers

he traveled 14 feet. 1 yard is equal to 3 feet. 2 yards are 6 feet. 8+6=14ft

Answer:

14 feet

Step-by-step explanation:

Let F = number of feet the child traveled in total

Convert the yards to feet by applying the rule of three,

1 yard ---------------- 3 feet

2 yards -------------- X

$X=(2 yards*3 feet)/(1 yard)=6feet$

Hence,

2 yards = 6 feet

Now add the additional 8 feet you crawled

F = 6 feet + 8 feet

F = 14 feet

Therefore, the child traveled 14 feet in total.

Hope this helps!

Solve the system of equations. 2x − 5y = 3
x − 3y = 1
(4, 1)
(5, 2)
(7, 2)
(9, 3)

Answers

Answer: First Option is correct.

Step-by-step explanation:

Since we have given that

$2x-5y = 3\n\n x -3y = 1$

Now, we will use "Substitution Method" to find the values of x and y:

$x=1+3y\ -(3)$

Put the value of x in first equation i.e.

$2x-5y = 3$

$2(1+3y)-5y=3\n\n2+6y-5y=3\n\n2+y=3\n\ny=3-2\n\ny=1$

Now, we use the value of y in equation (3),

$x=1+3y\n\nx=1+3*1\n\nx=1+3\n\nx=4$

Hence, values of (x,y) is (4,1).

Therefore, First Option is correct.

2x - 5y = 3
x - 3y = 1...multiply by -2
---------------
2x - 5y = 3
-2x + 6y = -2 (result of multiplying by -2)
--------------add
y = 1

x - 3y = 1
x - 3(1) = 1
x - 3 = 1
x = 1 + 3
x = 4

solution is (4,1)

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