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3 years ago

Help please don't get it

Mathematics

1 answer:

GarryVolchara [31]3 years ago

7 0

Surface Area is the area of each face added together. For this question lets find the area of one triangle first.

Area of a triangle is base*hight/2, so 6*7/2=21. That was the area of one triangle. We have 4 traingle so we multiply that by for. 21*4=84.

Now, lets find the area of the squre. area of square is side*side or side^2.

So we multiply 6*6=36. that is the area of the square.

To find the surface area, we must add Area of Triangles+Area of Square.

so, 84+36=120

So the surface area is 120

You might be interested in

A. 112 cm2<br><br> B. 64 cm2<br><br> C. 48 cm2<br><br> D. 56 cm2

goldfiish [28.3K]

The area of a triangle is taken by multiplying the length of the base times the height then dividing by 2.
l = 14cm
h = 8cm
A = $\frac{l * h}{2}$
A = $\frac{14 * 8}{2}$
A = $\frac{112}{2}$
A = 56 $cm^{2}$

6 0

3 years ago

What is the value of y?

mojhsa [17]

<h2>QUESTION:- What is the value of y?</h2>

<h2>ANSWER:- </h2>

SUM OF ALL INTERIOR ANGLE = 180

$y + y + 72 = 180 \\ 2y + 72 = 180 \\ 2y = 180 - 72 \\ 2y = 108 \\ y = \frac{108}{2} \\ y = \frac{ \cancel{108}^{ \: \: \: \tiny{54}} }{ \cancel{2}} \\ y = 54 \degree$

4 0

3 years ago

Read 2 more answers

A radio station has $400 to give away for a contest. It gives away a $50 prize each week. The equation y = 400 – 50x represents

Vlad1618 [11]

Answer:

The y intercept, (0,400) represents the amount of money the radio station originally had. The x-intercept, (8,0), represents the amount of weeks it will take for the radio station to have $0 left.

Step-by-step explanation:

5 0

2 years ago

What is the equation of the line that has a slope of -3 and passes through the point (-2, 4)?

ludmilkaskok [199]

Y = -3x + b
Plug in points
4 = -3(-2) + b
4 = 6 + b, b = -2
Solution: y = -3x - 2

3 0

3 years ago

Need help on the blanks. Pretty lost atm

nlexa [21]

Answer:

-108.26
-108.13
-108.052
-108.026
-108

Step-by-step explanation:

A graphing calculator or spreadsheet is useful for making the repeated function evaluations required.

The average velocity on the interval [a,b] will be ...

v avg = (y(b) - y(a))/(b-a)

Here, all the intervals start at a=3, so the average velocity for the given values of t will be ...

v avg = (y(3+t) -y(3))/((3+t) -3) = (y(3+t) -y(3))/t

This can be computed for each of the t-values given. The results are shown in the attached table.

We note that the fractional part of the velocity gets smaller in proportion to t getting smaller. We expect it to go to 0 when t goes to 0.

The estimated instantaneous velocity is -108 ft/s.

_____

We can simplify the average velocity equation to ...

v avg = ((48(3+t) -26(t+3)^2) -(48(t+3) -26(3)^2)) / t

= (48t -26(t^2 +6t))/t

= 48 -26t -156

Then the average velocity at t=0 is -108.

5 0

3 years ago