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Oduvanchick [21]
3 years ago
9

F(x) = -x^2 + 6x -4; f(6) A. -4 B. 4 C. 5 D. 13 Pls help now

Mathematics
1 answer:
Volgvan3 years ago
8 0
F(6) = -(6)^2 + 6(6) - 4
= -36 + 36 - 4
= -4

A
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The length of the base of an isosceles triangle is x. The length of a leg is 4x-6. The perimeter of the triangle is 60. Find x.
lbvjy [14]

Answer:

Perimeter of a triangle = add all sides

Both the legs of the isosceles triangle are always EQUAL.

x+4x-6+4x-6 = 60

9x-12 = 60

9x = 60+12

9x = 72

x = 8

3 0
2 years ago
Kala, Deandre, and Eric have a total of $119 in their wallets, Kala has $6 more than Deandre. Eric has 3 times what kala has. Ho
Tomtit [17]
Deandre = x
Kala = x + 6
Eric = 3(x+6)
x + x + 6 + 3(x+6) = 119
2x + 6 + 3x + 18 = 119
5x + 24 = 119
5x = 95, x = 19
Deandre has $19
Kala has 19 + 6 = $25
Eric has 3(25) = $75
4 0
2 years ago
2. Two angle measures are in the ratio 5:9. Write
iris [78.8K]

The two angles are x and 9x/5

<h3 /><h3 />

Let the two angles we require be x and y.

<h3 /><h3>Ratio of both angles</h3>

We have that the ratio of both angles are x:y

Since both angles are in the ratio 5:9, we have that,

x:y = 5:9

⇒ x/y = 5/9

<h3 /><h3>Value of the other angle</h3>

So, we Make y subject of the formula

Multiplying both sides by y, we have

y × x/y = 5/9 × y

x = 5y/9

Multiplying both sides by 9, we have

9 × x = 5y/9 × 9

9x = 5y

Dividing both sides by 5, we have

9x/5 = 5y/5

y = 9x/5

So, the two angles are x and 9x/5

Learn more about angles here:

brainly.com/question/14362353

3 0
2 years ago
Please help me ASAP I WILL GIVE U BRAINLIEST!
cestrela7 [59]

Answer:

\sqrt{13}

Step-by-step explanation:

Given a vector < x, y > then its magnitude is

\sqrt{x^2+y^2}

Given the directed line segment

P (0, 0 ) → Q (3, 2 ) then

PQ = q - p = (3, 2 ) - (0, 0 ) = < 3 - 0, 2 - 0 > = < 3 , 2 >

| PQ | = \sqrt{3^2+2^2} = \sqrt{9+4} = \sqrt{13}

8 0
3 years ago
Please help I need it ASAP!!
kotegsom [21]

Answer:

5+z=190....././......

7 0
3 years ago
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