2 years ago

Help, please the question and thank you

1 answer:

5 0

Choose the first one becauseA(1,3) and after the dilatation the x and y of A become three times as the original one so it is(3, 9)

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-2(a-8)+6a=36 <br> what's the value of a<br> A=

ivann1987 [24]

Distribute -1 into the brackets.
-2(a - 8) + 6a = 36
-2a + 16 + 6a = 36
Take 16 to the other side
-2a + 6a + 16 = 36
- 16 -16
-2a + 6a = 36 - 16
Combine like terms
4a = 20
Divide by 4 on either sides to isolate a
$\frac{4a}{4} = \frac{20}{4}$
4 and 4 cancels out.
a = 5

4 0

3 years ago

A map has a scale showing 3 inches represents 11 km. How many miles apart

jekas [21]

Answer:

Step-by-step explanation:

Direct proportion.

Distant between two cities= 11/3 * 9.7 = 106.7/3 = 35.56 km

3 0

3 years ago

What is the correct answer? This really doesn't answer my question. but you did help me understand it a lot better. Thank you!

Andru [333]

What your weird bro and funny

4 0

3 years ago

Could anyone help with this, im terrible at geometry haha

Natalija [7]

Answer:

m<ACD = 90

m<CDB = 126

m<EDB = 54

m<CDE = 180

Step-by-step explanation:

Well you have the right girl! *In honors geometry you can trust me!

Ok first thing...We already know

B = 54

A = 90

D = 54 (It's the Alternate interior angle of B)

C = 90

m<ACD = 90 (C = 90)

m<CDB = 126 (D = 54 ------> 180-54= 126)

m<EDB = 54 (Alternate Interior angle of B)

m<CDE = 180 (It is a straight line)

Hope this helps ya!!

7 0

3 years ago

Solve for y:10.3=0.6y

valkas [14]

10.3=0.6y
30=0.6y
y=30/0.6
y=50

7 0

3 years ago

Read 2 more answers