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3 years ago

8

Find the lateral area the regular pyramid L. A. =

2 answers:

Tcecarenko [31]3 years ago

7 0

L = 1/2(P)(l)

l = slant height
P = perimeter

Taya2010 [7]3 years ago

5 0

We know that
lateral area=3*[area of a equilateral triangle]
Applying the law of sines to calculate the area of a equilateral triangle
Area=(1/2)*a*b*sin C
a=4
b=4
C=60 degrees
area equilateral triangle=0.5*4*4*sin 60-----> 0.5*4*4*√3/2---> 4√3 units²
lateral area=3*[4√3]----> 12√3 units²

the answer is
12√3 units²

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Step-by-step explanation:

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3 years ago

Which are correct representation of the inequality minus 32X -5 less than 52 minus X select two options

Murljashka [212]

Answer:

The value of X is more than equal to -1.83.

Step-by-step explanation:

We need to find the correct representation of the inequality 'minus 32X -5 less than 52 minus X'

LHS of the inequality will be : -32x-5

RHS of the inequality will be : (52-X)

So,

$-32X-5\leq 52-X$

Adding X both sides

$-32X-5+X\leq 52-X+X\\\\-31X-5\leq 52$

Adding 5 to both sides,

$-31X-5+5\leq 52+5\\\\-31X\leq 57$

Dividing both sides by -31.

$X\geq \dfrac{-57}{31}\\\\X\geq -1.83$

So, the value of X is more than equal to -1.83.

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3 years ago

The temperature at noon is 0°C. The temperature changes buy-3/2°C every hour for 4 hours. Write a expression to represent this s

aniked [119]

Answer:

So the temperature at 4:00 pm which is exactly 4 hours from 12 noon is -3/2°c

T = To + (-3/2°c)x

Where x is the fraction of 4 in hours

Step-by-step explanation:

Its a very simple Expression.

First we consider the first temperature at first time which is 0°c at 12 noon which I initial time, i.e t= 0.

For every four hour change , the temperature adds -3/2°c .

So the temperature at 4:00 pm which is exactly 4 hours from 12 noon is -3/2°c

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4 years ago

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4 years ago

Read 2 more answers

Using the distributive property simplify the expression<br> -2(5y + 6) + 3 - 5y

vivado [14]

Answer:

$\Huge \boxed{-15y-9}$

Step-by-step explanation:

To solve this problem, first you have to use the distributive property of $\displaystyle a(b+c)=ab+ac$ .

First, expand.

$\displaystyle -2(5y+6)$

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$\displaystyle -2*6=-12$

$\displaystyle -10y-12$

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Next, solve.

$\displaystyle -10-12+3-5=\boxed{-15y-9}$

In conclusion, the correct answer is -15y-9.

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4 years ago