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Sergeu [11.5K]
2 years ago
7

Chapter 7 need help ASAP

Mathematics
1 answer:
Elan Coil [88]2 years ago
5 0

Answer:

The answer should be that Q is (-3,-2)

Step-by-step explanation:

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A car dealership buys a car for $12,500 and sells it for $15,750. What is the percent markup( percent increase)
Natalka [10]

Answer:

About 1.26%

Step-by-step explanation:

Divide 15,750 by 12,500 to find your answer.

Hope this helped!

8 0
3 years ago
What’s the given m ABC = 70 and m ADC = 46
uysha [10]

Answer:

Step-by-step explanation:

Properties of a kite;

1). A kite has one pair of equal angles.

2). A kite has two pairs of adjacent sides.

3). Diagonals of a kite intersect at 90°.

4). Kite has at least one diagonal that bisects the opposite angles.

It's given in the question,

m∠ABC = 70° and m∠ADC = 46°

By the property number -4,

m∠2 = m∠3 = \frac{70}{2} = 35°

m∠8 = m∠9 = \frac{46}{2} = 23°

By the property number - 3,

m∠4 = 90°

By the property of interior angles in a triangle,

m∠3 + m∠4 + m∠5 = 180°

35° + 90° + m∠5 = 180°

125° + m∠5 = 180°

m∠5 = 55°

Similarly, m∠1 + m∠2 + 90° = 180°

m∠1 + 35° + 90° = 180°

m∠1 = 55°

Now m∠6 + 90° + m∠8 = 180°

m∠6 + 90° + 23° = 180°

m∠6 = 180 - 113 = 67°

Therefore, m∠6 = m∠7 = 67°

3 0
3 years ago
*27. Jane has -$30 in her bank account, her electric company charges her her monthly bill of
Lorico [155]

Answer:

-$173

Step-by-step explanation:

-30-128=-158 \\ \\ -158-15=-173

8 0
2 years ago
An independent-measures research study uses two samples, each with n = 12 participants.If the data produce a t statistic of t =
lana [24]

Answer:

B- It cannot be answered without additional information.

Step-by-step explanation:

From the question, we have α= 0.01 and α= 0.05.

Thus;

We can decide to look at the critical values and check if test statistic is less or more than the tabulated value for α= 0.01 and 0.05.

However, that will not be sufficient as neither the level of significance nor confidence level is clearly mentioned in the question and thus, we can not answer it without additional information.

7 0
3 years ago
11cm by 6 cm rectangle
puteri [66]

Answer:

Question unclear.

If the question was about the perimeter of the rectangle, it is calculated as:

= (Length * 2) + (Height * 2)

= (11 * 2) + (6 * 2)

= 22 + 12

= 34 cm

If the question was bout Area, the area is:

= Length * width

= 11 * 6

= 66 cm²

8 0
3 years ago
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