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3 years ago

I really need help!! HELP ASAP PLEASE!!! Which figure has an area of 12 square units?

Mathematics

1 answer:

masya89 [10]3 years ago

3 0

Answer:

Should be the bottom one

Step-by-step explanation:

You can find this by counting. It is the only one with 12 units.

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Lisa's house is represented on the graph with the point (3,2). Tina's house is 12 miles north and 5 miles east of Lisa's house a

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17 miles because 8+14=22 and 2+3=5 so 22-5=17 that is how.

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4 years ago

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Suppose someone tells you that she has a triangle with sides having lengths 2.6, 8.1, and 8.6. Is this a right triangle? Why or

Lunna [17]

This is not a right triangle as 2.6 squared plus 8.1 squared does not equal 8.6 squared (Pythagorean theorem)

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3 years ago

Is 75/100 equal to 3/4

gogolik [260]

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3 years ago

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Find the vertex, zero(s), and y-intercept of the graph of y = –x2 + 4x + 32.

xxMikexx [17]

Answer:

The correct option is A.

Step-by-step explanation:

The given equation is

$y=-x^2+4x+32$

Put x=0, in the given equation.

$y=-(0)^2+4(0)+32=32$

The y-intercept is (0,32).

Put y=0, to find the x-intercept.

$0=-x^2+4x+32$

$0=-x^2+8x-4x+32$

$0=-x(x-8)-4(x-8)$

$0=-(x+4)(x-8)$

$x=-4,8$

Therefore the y-intercepts are (-4,0) and (8,0).

The vertex of a parabola $f(x)=ax^2+bx+c$ is

$(-\frac{b}{2a},f(-\frac{b}{2a}))$

$-\frac{b}{2a}=-\frac{4}{2(-1)}=2$

Put x=2 in the given function.

$y=-(2)^2+4(2)+32$

$y=-4+8+32$

$y=36$

The vertex is (2,36).

Therefore option A is correct.

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3 years ago

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What do i do here and plz help me answer this

stepladder [879]

Answer:

for number 1, you plug -3 in for x in the equation. and for number 2, you plug in 2 for y in the equation. you do this to find the missing values of the variables.

1. y= -10

2. x= -1

Step-by-step explanation:

i hope this helps :)

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3 years ago

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