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Ratling [72]
3 years ago
15

1.

Mathematics
2 answers:
Serhud [2]3 years ago
6 0

Answer:

D 7x -28 i think it is like this

MAXImum [283]3 years ago
4 0
3(5x-6)-2(4x+5)
15x-18-8x-10
Collect like terms:
15x-8x-18-10
= 7x-28
You might be interested in
What multiplies to 0 and adds to 8
nirvana33 [79]
Anything multiplied by 0 will always equate to 0.

That means the two numbers are 8 and 0.

(0 × 8 = 0)
<span>(0 + 8 = 8)</span>
8 0
3 years ago
Pls answer for brainliest
lana66690 [7]

Answer: Choice B

(x,y) \to \left(\frac{5}{2}x,\frac{5}{2}y\right)

=========================================================

Explanation:

When dilating with respect to the origin, any point of the form (x,y) moves to (kx, ky) for some real number k. The k is the scale factor.

Point C is at (-2,2). It moves to C ' (-5,5)

The jump from x = -2 to x = -5 is "times 5/2" since kx = (5/2)*(-2) = -5

The same scale factor is used when going from y = 2 to y = 5.

Both x and y coordinates are multiplied by 5/2 to move from (-2,2) to (-5,5)

Therefore, the dilation rule we use is (x,y) \to \left(\frac{5}{2}x,\frac{5}{2}y\right)

-----------

We could have these steps to confirm

(x,y) \to \left(\frac{5}{2}x,\frac{5}{2}y\right)\\\\(-2,2) \to \left(\frac{5}{2}*(-2),\frac{5}{2}(2)\right)\\\\(-2,2) \to (-5,5)\\\\

5 0
3 years ago
Which special case is represented by?
vladimir1956 [14]

Answer:

A. the difference of two squares

Step-by-step explanation:

we are given

x^2-121

we can write

121=11\times 11

121=11^2

so, we can see that

x^2 is square

11^2 is also square

so,

x^2-11^2=square-square

It means that

two squares are subtracted

so, it is difference of two squares

so,

A. the difference of two squares

3 0
3 years ago
What is the equation for the volume of a Cylinder? And a can of baked beans is 11cm by 3.5cm, a can of soda pop is 13cm by 4cm.
Lynna [10]

Answer:

volume = (Pi)(r^2)(height)

57.5 cm^3 difference in volume

Step-by-step explanation:

Assuming that the 3.5 cm and the 4 cm are diameters of the cans:

The radius of the baked beans can is one-half of the diameter and that would be 1.75 cm.

The radius of the soda can is one-half of the diameter and that would be 2 cm.

The formula for the volume of a cylinder is Pi times the radius squared times the height.   (Pi)(r^2)(height)

Baked beans volume equals (3.14)(1.75^2)(11) = (3.14)(3.06)(11) = 105.78 cm^3

Soda can volume equals (3.14)(2^2)(13) = (3.14)(4)(13) = 163.28 cm^3

The soda can has more volume so:

163.28 cm^3 minus 105.78 cm^3 equals 57.5 cm^3 difference in volume.

8 0
3 years ago
Help! please!!!!!! look at photo :))
JulsSmile [24]

Hey there!

We know that Danielle earns $10 per hour, so muliply that by 3 and get 30.

Because Danielle works an extra half an hour, divide 10 by 2 and get 5.

Danielle earns $35 in 3 hours and a half.

Hope this helps! Please mark me as brainliest!

Have a wonderful day :)

4 0
3 years ago
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