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Molodets [167]
3 years ago
13

W=3(2a+b)-4 when making a the subject

Mathematics
1 answer:
PIT_PIT [208]3 years ago
5 0
Answer : w/6 + 4/6 -3b/6 = a

Explanation :
First distribute it which is
=> w= 6a+3b -4
Then start moving the numbers to the left
=> w+4 - 3b = 6a
= w/6 + 4/6 -3b/6 = a
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ABC ~ DEF and the scale factor from ABC to DEF is 1/2, what are the lengths of DE
Likurg_2 [28]

Answer:

13

Step-by-step explanation:

ABC ~ DEF means that ABC and DEF are the same triangle either expanded or contracted.

In this case the scale factor is 1/2. That means DEF is half ABC.

Since AB = 26 then DE must be 26/2 = 13

6 0
3 years ago
6 and<br> Find the value of this expression if x<br> y--1.<br> xy2<br> -5
zysi [14]

Answer:

y = 5;  x = 1/5

Step-by-step explanation:

xy = 1    ----->  x = 1/y

xy^2 = 5 -----> 1/y * y^2 = 5

y^2 / y = 5

y = 5

5x = 1

x = 1/5

Hope this Helps!

5 0
3 years ago
What is the vertex form of Y = x2 - 6x + 6?
ahrayia [7]

Answer:

\large\boxed{y=(x-3)^2-3}

Step-by-step explanation:

The vertex form of a quadratic equation <em>y = ax² + bx + c:</em>

<em>y = a(x - h)² + k</em>

(h, k) - coordinates of a vertex

We have the equation <em>y = x² - 6x + 6</em>.

Convert to the vertex form:

y=x^2-2(x)(3)+6\\\\y=\underbrace{x^2-2(x)(3)+3^2}_{(*)}-3^2+6\qquad\text{use}\ (a-b)^2=a^2-2ab+b^2\qquad(*)\\\\y=(x-3)^2-9+6\\\\y=(x-3)^2-3\to h=3,\ k=-3

7 0
3 years ago
Do two points always, sometimes, or never determine a line? Explain.
mel-nik [20]

Answer: sometimes

explanation:

if there are two points then there could be a line to connect them, however, there could always be two points that are separate on their own.

8 0
3 years ago
Read 2 more answers
PLEASE HELP! I need someone to help me with my home work is anyone able to help?
Monica [59]

Answer:

Katie

Step-by-step explanation:

Use seconds as the standard unit to compare the speeds of the 4 runners

Tony is already in standard form and runs 12 ft/s

Katie:

450/30

15 ft/s

Frank:

1 mile = 5280 feet

5280/577

9.15 ft/s

Adam:

I minute = 60 seconds

880/60

14.67 ft/s

8 0
3 years ago
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