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Brut [27]
3 years ago
9

On each weekly spelling test, the students in Mrs. Ruiz's class record how they do in comparison to the week before.

Mathematics
1 answer:
Bas_tet [7]3 years ago
3 0

Answer:

<em>Student C </em>

Step-by-step explanation:

<em>* Student C *</em>

If we were to take a look at the problem we would see that the greatest difference would be the greatest difference from 0, either positive of negative;

Student A: 1 from 0,

Student B: 0 from 0,

Student C: 3 from 0,

Student D: 2 from 0

<em>As we see from the results, Student C has the greatest difference from before</em>

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Circle C with center at (−4, 6) and radius 2 is similar to circle D with center at (6, −2) and radius 4. Below is an incorrect i
BlackZzzverrR [31]

We are told that circle C has center (-4, 6) and a radius of 2.

We are told that circle D has center (6, -2) and a radius of 4.


If we move circle C's center ten units to the right and eight units down, the new center would be at (-4 + 10), (6 - 8) = (6, -2). So step 1 in the informal proof checks out - the centers are the same (which is the definition of concentric) and the shifts are right.

Let's look at our circles. Circle C has a radius of 2 and is inside circle D, whose radius is 4. Between Circle C and Circle D, the radii have a 1:2 ratio, as seen below:

\frac{1}{2} = \frac{radius--circle C}{radius--circle D}

If we dilate circle C by a factor of 2, it means we are expanding it and doubling it. Our circle has that 1:2 ratio, and doubling both sides gives us 2:4. The second step checks out.

Translated objects (or those that you shift) can be congruent, and dilated objects are used with similarity (where you stretch and squeeze). The third step checks out.


Thus, the argument is correct and the last choice is best.

3 0
3 years ago
What is the hcf of 45 and 100
Ira Lisetskai [31]

Answer:

45 100

/ \ / \

3 × 15 2×50

/ \ / \

3× 5 2×25

/ \

5×5

45 : 3×3×5

100: 2×2×5×5

common : 3×5

15

HCF: 15

6 0
2 years ago
Ashely is making $500 a week at her job. She receives a 20% pay raise. A year later she takes a 5% pay cut. How much money does
zheka24 [161]

Answer:

<em>$570 a week</em>

Step-by-step explanation:

<u>Percentage Calculations </u>

One tricky fact about percentages is that they are usually performed over the last computed quantity. It makes them non-additive. For example, a raise of 10% followed by a 10% some time later, is NOT a 20% of total raise

The question states Ashely is making $500 a week at her job and that she receives a 20% pay raise. After that raise she will make

\$500*(1+20/100)=\$500(1.2)=\$600 \text{ a week}

A year later she takes a 5% pay cut. We must be careful to take that percentage from the last earnings. She now makes

\$600(1-5/100)=\$600(0.95)=\$570\ a\ week

3 0
3 years ago
Goldbach''s Conjecture is a famous conjecture that has never been proven true or false. The conjecture states that every even nu
zhannawk [14.2K]
Has been proven TRUE.... hope it helps buddy have a great day hope you pass

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2 years ago
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Answer:82537

Step-by-step explanation:

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