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3 years ago

(20 points)

Mathematics

1 answer:

vladimir1956 [14]3 years ago

3 0

Answer:

Step-by-step explanation:

Slope is the same(x) therefore they are parallel

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The circumference of a circle is 60 kilometers. What is its radius?

lisabon 2012 [21]

Answer: 9.5493

Step-by-step explanation: circumference = 2pi*r

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3 years ago

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Using triangle A B C as the pre-image and the origin as the center of dilation, which coordinate point is not a coordinate of a

Ostrovityanka [42]

Answer:

The correct option is:

begin ordered pair 4 comma 12 end ordered pair i.e. (4,12).

Step-by-step explanation:

We are given the coordinates of the point A,B and C of the triangle ΔABC as:

A(-1,3) , B(2,1) and C(-2,-1).

Now it is given that there is dilation of this triangle about the origin with a scale factor of 4.

This means that the change in the coordinates after the transformation is given by the rule:

(x,y) → (4x,4y)

As A → A' , B → B' and C → C'

Hence the coordinates A',B' and C' are given by:

A' are (4×-1,4×3)=(-4,12)

B' are (4×2,4×1)=(8,4)

and C' are (4×-2,4×-1)=(-8,-4).

Hence the coordinate point which is not a coordinate of dilation is:

begin ordered pair 4 comma 12 end ordered pair i.e. (4,12)

3 0

3 years ago

Estimate the solution to the equation 3.1g = 20.9 to the nearest whole number. about 7 about 8 about 10 about 5

lubasha [3.4K]

Divide both sides by 3.1 and find g = 20.9/3.1 ≈ 6.7 ≈ 7.
You can estimate this without a calculator by saying 20.9 ≈ 21 and 3.1≈3, then 21/3=7.

In general, be careful with rounding before a calculation, because the rounding errors can be enlarged, messing up the accuracy of your answer. It's best to round only at the end.

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3 years ago

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A division problem divides a 3-digit number by a 1 digit number. The quotient is 307 r3. What could the division problem be?

Tanya [424]

Answer:

There is no solution to this problem.

Step-by-step explanation:

The 1 digit number cannot be 1, since there would be no remainder.

The 1 digit number cannot be 2, since the remainder could be 0 or 1.

The 1 digit number cannot be 3, since the remainder could be 0, 1, or 2.

So, the 1 digit number must be greater than 3. Let's start with 4. Since the quotient is 307 (remainder 3), 4 x 307 is already more than 3 digits.

5 0

3 years ago

A C B D = If mLABD = 75° and mABC = 40°. then m/ CBR = [ ? 1° 10

m_a_m_a [10]

The measure of the angle m∠CBD that forms an adjacent angle is 35 degrees.

<h3>What are adjacent angles?</h3>

Adjacent angles are angles that have common side and vertex.

Therefore, the common vertex is at point B.

m∠CBD = m∠ABD - m∠ABC

Therefore,

m∠ABD = 75 degrees

m∠ABC = 40 degrees

Hence,

m∠CBD = 75 - 40

m∠CBD = 35 degrees

learn more on angles here; brainly.com/question/1592068

#SPJ1

7 0

1 year ago