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Vinil7 [7]
3 years ago
11

Anyone help ASAP pls!!!

Mathematics
1 answer:
Papessa [141]3 years ago
8 0
56

Formula for 3 dimensional rectangle —> L x W x H
h = 2
w = 4
l = 7
2 x 4 x 7
= 56
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What is the length of AB?
Tresset [83]

Answer:

angle B'CA'= angle BCA..... (common angle)

angle B'A'C = angle BAC.....(corresponding angels)

therefore,

ΔCB'A' ~ ΔCBA. ......(by A-A test of similarity)

therefore,

B'A'/ BA. = CA'/ CA....(congruent sides of congruent triangles)

now, B'A' = 5, CA'= 6 , CA = 6 + 3 = 9

5 / BA. = 6 / 9

therefore, 5 / BA. = 2 / 3

ba \:  =  \frac{5 \times 3}{2 }  \\  =  \frac{15}{2}  \\  = 7.5

Answer : AB = 7.5 units

8 0
3 years ago
T&L - Math 7 - Volume 7.4 -19-20
Mashcka [7]

Answer: You would need 512 cubic centimetres

Step-by-step explanation: The first approach to this question would be to understand the properties of the shape given in the question.

If a cube has an edge with length 8 cm, then all edges measure 8 cm as well. That is one property of a cube. Hence, the length, width and height all measure 8 cm each.

The volume of a cube is given as follows;

V = L x W x H (and the answer is expressed as V³)

Since the length , width and height all measure 8 cm, the volume can simply be expressed as

V = L x L x L

V = L³

V = 8³

V = 512 cm³

Therefore to completely fill a cube with edge length of 8 cm you would need 512 cubic centimetres.

5 0
4 years ago
So sometimes i put a question with lots of points and a lot of people come up just for the points and not to help me just to let
Ne4ueva [31]

Answer:

If you have any questions I can try to help :)

Step-by-step explanation:

I'm sorry people keep doing that to you

and thank you for the points <3

5 0
3 years ago
Help me find the measure
belka [17]

Answer:

the value of x is 40 degree and the value of (2x+11) is 91 degree.

Step-by-step explanation:

hope it helps you.

3 0
3 years ago
Find the equation of the line that passes through the points (-3,0) and (4,2). Using point slope formula
astra-53 [7]

Answer:

\large\boxed{y-0=\dfrac{2}{7}(x+3)}\\\downarrow\\\boxed{y=\dfrac{2}{7}x+\dfrac{6}{7}}

Step-by-step explanation:

The point-slope form of an equation of a line:

y-y_1=m(x-x_1)

<em>m</em><em> - slopei</em>

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

======================================

We have the points (-3, 0) and (4, 2).

Substitute:

m=\dfrac{2-0}{4-(-3)}=\dfrac{2}{7}

Put the value of the slope and the coordinates of the point (-3, 0) to the equation:

y-0=\dfrac{2}{7}(x-(-3))

y-0=\dfrac{2}{7}(x+3)

Converto to the slope-intercept form (<em>y = mx + b</em>):

y=\dfrac{2}{7}x+\dfrac{6}{7}

6 0
4 years ago
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