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3 years ago

9

A2(a-p)-a(p2-3ap+a2)-{a(p2+a2)-p(a2+2p2)}

1 answer:

Lemur [1.5K]3 years ago

3 0

Answer:

3a^2p-2a^2-8ap-4p^2

Step-by-step explanation:

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What is m∠DEF?<br> Enter your answer in the box.

frutty [35]

Answer:

<h2>m∠GEF = 18º since it is marked as congruent to ∠DEG, so putting them together we get m∠DEF = 36º. Since the angles in the triangle need to add to 180º and angles D and F are congruent, we could write the equation 2x + 36 = 180 where x stands for ∠F.</h2>

8 0

3 years ago

jolli1 [7]

Answer:

$E = 30 \times H$

$570

Step-by-step explanation:

Given that:

For each hour of tutoring, Lena earns 30 dollars.

E is her earning and

H is the number of hours for which she tutors.

To find:

Equation relating E to H.

Solution:

Let Lena tutors for 1 hour, then the earning = 30 dollars

Let Lena tutors for 2 hours, then the earning = 30+30 OR 2 $\times$ 30 = 60 dollars

Let Lena tutors for 3 hours, then the earning = 30+30 +30 OR 3 $\times$ 30 = 90 dollars

If Lena tutors for H number of hours, then the earning, E = 30 + 30 + .... + 30 (H times) i.e.

$E = 30 \times H$

So, the equation that relates E to H is given as:

$E = 30 \times H$

Now, it is given that she tutors for 19 hours.

Let us put H = 19 hours in the above equation:

$E = 30 \times 19 \\\Rightarrow E = \$570$

Therefore, the earning for 19 hours of tutoring is <em>570 Dollars.</em>

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