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9966 [12]
3 years ago
11

Find the value of y A)6/3 B)6 C)2/3 D)4

Mathematics
1 answer:
Inessa [10]3 years ago
6 0

Answer:

y = A (6\sqrt{3})

Step-by-step explanation:

x^{2} +y^{2} = 12^{2}=144\\y^{2}-9^{2}=x^{2} -3^{2} \\x^{2} -y^{2}=-72\\2y^{2}=216\\y^{2}=108\\ y=\sqrt{108}=6\sqrt{3}

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Use the equation to complete an algebraic proof that proves the answer is x = 7/6. Write your proof in your journal and upload y
dimaraw [331]

Answer:

Step-by-step explanation:

Show that if 3x – 7 = 5, then x = 4.

Here, our given statement is 3x – 7 = 5, and we're asked to prove x = 4.

x=4

Statements Reasons

1. 3x – 7 = 5 Given

2. 3x – 7 + 7 = 5 + 7 Addition of 7 to equation (1)

3. 3x + 0 = 5 + 7 Substitution of –7 + 7 = 0 into (2)

4. 3x = 5 + 7 Substitution of 3x + 0 = 3x into (3)

5. 3x = 12 Substitution of 5 + 7 = 12 into (4)

6. 3x⁄3 = 12⁄3 Dividing equation (5) by 3

7. x = 12⁄3 Substitution of 3x⁄3 = x into (6)

8. x = 4 Substitution of 12⁄3 = 4 into (7)

Is there such a thing as being too descriptive? Yep, and that was it, since over half the proof was devoted to telling the reader how to do arithmetic. We'll typically take numerical computation for granted, and write proofs like this:

5 0
3 years ago
A scale drawing of a movie screen is 21 inches long and 9 inches tall. The actual screen is 30 feet tall. What is the scale of t
MatroZZZ [7]
<span>A scale factor is the ratio of two similar geometric figures of their corresponding sides. The scale factor is calculated by locating the corresponding sides on each figure. We calculate as follows:

scale factor = 9/30 = 0.3

Hope this answers the question. Have a nice day. </span>
8 0
3 years ago
The function f(x) = x2 is translated 7 units to the left and 3 units down to form the function g(x). Which represents g(x)? g(x)
Verdich [7]

Answer:

g(x)=(x+7)^2-3

Step-by-step explanation:

Given:

f(x)= x^2

Now we have to translate f(x) 7 units to the left and 3 units down to form the function g(x).

As per the rules of translation

when any parent function, in given case f(x)=x^2, is translated to 'a' units to the left then 'a' is added to the value of x. thus making f(x+a)

Also when the parent function is translated any 'a' units down then 'a' is subtracted from the value of function. thus making f(x)-a

Translating f(x), 7 units to the left

f(x+7)= (x+7)^2

Translating f(x+7), 3 units down

f(x+7)-3 = (x+7)^2-3

Hence new function g(x)=(x+7)^2-3!

7 0
3 years ago
I’ll give a brainiest to the correct answer!!!!
Kay [80]
Answer: 7
Explanation: both triangles are congruent, so the mid segment is half of 14
5 0
3 years ago
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Find the equation of the line passing through (4,3) and parallel to the line whose equation is y=2x-6
SVETLANKA909090 [29]
Y=2x-6 (4, 3)
(X, Y)
3=2(4)+b
3=8+b
-5=b

Y=2x-5
5 0
3 years ago
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