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3 years ago

I Need help with 10 please

Mathematics

2 answers:

Deffense [45]3 years ago

7 0

Hey so the answer would be B

NeX [460]3 years ago

5 0

The meaning of circumference is to find the distance around a circle or in other words the perimeter of the circle. The circumference of a circle can be calculate by using the formula C=2πr or C=πd.

In this exercise is given that a juice can has a diameter of 2.25 inches, and it is asked to find its circumference. In this problem the diameter of the circle is given, so in this case the formula C=πd would be used, where d represents the diameter.

$C= \pi d$
$C= \pi (2.25 in)$
$C=7.065 in$

The circumference of the juice can is 7.065 inches or in other words letter C from the given choices.

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Step-by-step explanation:

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topjm [15]

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Step-by-step explanation:

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2 years ago

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What is the equations for f(x)?

Wittaler [7]

$f(x) = -8\cdot 4^x$

You reflect a function with respect to the $x$ axis by changing its sign.

In fact, if you consider the two alternatives

$x \mapsto f(x)$ and $x \mapsto -f(x)$

you can see that you're choosing opposite outputs for the same inputs.

In other words, one graph will be made of points like $(x,f(x))$ , the other of points like $(x,-f(x))$

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6 0

3 years ago

Someone please help

dedylja [7]

Answer:

1. y = -2x + 5

2. y = 3/5x + 5

3. y = -4/5x - 4

4. y = - 1

5. yes

6. yes

7. yes

8. no

Step-by-step explanation:

1. (4,-3) parallel to y= -2x

-3 = -2(4)+b

b=5

2. (-5,2) parallel to y = 3/5x

2= 3/5(-5)+b

b=5

3. (-5,0) -4/5x

0 = -4/5(-5)+b

b = -4

4. (-4,-1)

y= -1

5. yes

6. yes

7. yes

8. no

Same slope = parallel ex. y = -5x +7, y = -5x +12
opposite reciprocal = perpendicular ex. y = -5x +7, y = 1/5x + 12
to find "b" with slope and point

(x,y) y = mx + b

plug in the y value and x value in the eqaution and m=slope, solve for b

7 0

3 years ago

The line segment joining the points ( 3,-4) and (1,2) is trisected at the points P and Q . If the coordinates of P and Q are (p

sdas [7]

Answer:

P = 7/3 and q = 0

Step-by-step explanation:

The given parameters are;

The endpoints of the segment are, (3, -4) and (1, 2)

The points that trisect the given points are P and Q with coordinates (p, -2) and (5/3, q) respectively

Therefore, we have;

The first point of the trisection cuts 1/3 of the length from one point and the second point of the trisection cuts 2/3 of the length from the same point

The coordinates of P or Q = (3 - (3 - 1)/3, -4 - (-4 - 2)/3) = (7/3 , -2)

Therefore, given that the y-coordinate value of the derived point coincides with the y-coordinate value of the point P, (p, -2) and there is only one point with x = -2 on the line, we have that the coordinate of the point P is (p, -2) = (7/3 , -2)

∴ P = 7/3

Similarly we have the second point of the trisection, Q, given as follows;

We are already given the x-coordinate value of the point Q as the 5/3 in (5/3, q)

Point Q = (5/3, q) = (3 - 2×(3 - 1)/3, -4 - 2×(-4 - 2)/3) = (5/3 , 0)

Point Q = (5/3, q) = (5/3 , 0)

∴ q = 0.

3 0

3 years ago