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BlackZzzverrR [31]
3 years ago
14

Can someone help me do this with working pls

Mathematics
1 answer:
ycow [4]3 years ago
4 0
∵ the two triangles are congruent

AB / AD = BC / DE
8/4 = 6/ DE
DE = 6 x 3 ÷ 8 = 3 cm
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Identify the property of equality that makes the Equation 1 and Equation 2 equivalent
Otrada [13]

Step-by-step explanation:

<u>To make both equivalent</u>.

For equation (I) multiply all through by 4

Now, from

x - 1/2 = x/4 + 3

it becomes

4(x) - 4(1/2) = 4(x/4) + 4(3)

--> 4x - 2 = x + 12.

This is your new equation (I) or you can call it equation (iii).

For equation (ii) multiply all through by 1 to make it equivalent to your new equation (I) or eqn (iii) if you wish.

Now from

4x - 2= x + 12

it becomes

1(4x) - 1(2) = 1(x) + 1(12)

--> 4x - 2 = x + 12

This is your new equation (ii) or you can call it equation (iv)

Therefore;

Equation 1 has to be multiplied by 4 and Equation 2 by 1 to make both equivalent.

New equation 1 is 4x-2=x+12

New equation 2 is 4x-2=x+12.

6 0
4 years ago
Find the slope and y intercept of the graph of the graph of each equation.
AleksandrR [38]
Solve each equation for y and then the slope is m and y-intercept is b as in:
y = mx+b

So, if you do that, you'll get (remember, this is <em>after</em> solving for y):
1. m = -6, b = -2
2. m = 5, b = -1
3. m = -5/3, b = 5
4. m = 0, b = -1/4
5. m = -1, b = -3
6. m = 3, b = -4
7. m = 1/2, b = -5/2
8. m = 7/2, b = 1

Hope this helps.
7 0
4 years ago
Read 2 more answers
On Monday Val walked 4 miles in 1 1/2 hour. On Tuesday she walked 3 miles in 9/10 hour. Did Val walk at the same rate on both da
Ugo [173]
No she did not walk at the same rate
4 0
3 years ago
If side LM = 11 4/5 cm, side MN = 5 1/2 cm, and side LN = 9 9/10 cm, what is the perimeter of the triangle shown above?
Damm [24]

Answer:

160

Step-by-step explanation:

6 0
3 years ago
a rectangle pool is 9 ft wide. the pool has an area of 117 square feet. what is the perimeter of the pool?
Softa [21]
9*13=117
(9*2)+(13*2)=44
44 feet
6 0
4 years ago
Read 2 more answers
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