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3 years ago

Which statement correctly maps AB to A′B′

Mathematics

1 answer:

VARVARA [1.3K]3 years ago

8 0

Answer: ( x + 8, y -7)
x value is moved 8 units to the left. So add 8 to x value.
Y value is moved 7 units down. So subtract 7 from y value

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What is the axis of symmetry? f(x)=2x^{2} -2x+6[/tex]

Zarrin [17]

For the expression
.. ax^2 +bx +c
The line of symmetry is
.. x = -b/(2a)
Here, that is
.. x = -(-2)/(2*2) = 1/2

The axis of symmetry is x = 1/2.

6 0

3 years ago

Suppose you hike 3 miles from the campgrounds to the lake at a rate of x miles per hour. On your way back from the lake to the c

quester [9]

Answer: The following three equations could be used to determine the rate:

x*(time there) = 3 miles

(x+1)*(time back) = 3 miles

(time there) + (time back) = 2.5 hr

Step by step (including the actual solution x):

Equation for the trip there:

x*(time there) = 3 miles

Equation for the trip back:

(x+1)*(time back) = 3 miles

And we also know that:

(time there) + (time back) = 2.5 hr

So we have three equations with three unknowns and can solve for x. Let us call

(time there): t1

(time back): t2

$x\cdot t_1 = 3\\(x+1)\cdot t_2 = 3\\t_1 + t_2 = 2.5\implies t_1 = 2.5-t_2\\\\x(2.5-t_2) = 3\\(x+1)\cdot t_2 = 3\\\\...\implies x = 2, t_1=1.5, t_2=1\\$

The solution (I skipped the gory details of solving, but you can verify by plugging the values back into the equations) is

Rate x = 2 miles/hour

(time there) = 1.5 hours

(time back) = 1 hour

3 0

4 years ago

Read 2 more answers

What is the area of the polygon?

Andrews [41]

Answer:

area of the polygon=1/2×(28+18)×12

=276unit²

8 0

3 years ago

Plz help fast!!!!!!!

tino4ka555 [31]

The first one.

Hope this helps :)

5 0

3 years ago

The angles of a qaudileteral are x,2x,100 and 110 degress find the value of 2x

Naya [18.7K]

Step-by-step explanation:

Hey there!!!!

We generally sum up all the angles to get 360° as per given in our question.

Here, in your question, we have values as,

x, 2x, 100°, 110°.

(We have 360° as the sum quadrilateral).

So, x° + 2x° + 100°+110° = 360°

3x°+210°= 360°

3x° = 360° - 210°

or, 3x° = 150°

$x = \frac{15 0 }{3}$

Therefore the measure of 2x is (2×50)°=100°.

Hopeit helps...

8 0

4 years ago

Read 2 more answers