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Stolb23 [73]
3 years ago
13

A. 5 × (-4)2 – (-3)2 please help

Mathematics
1 answer:
Lerok [7]3 years ago
5 0

5* (-4)*2 – (-3)*2

Follow the PEMDAS orders of operation:

Multiply and divide (left to right):

5*(-4)*2 = -40

=-40 -(-3)*2

Multiply and divide (left to right):

(-3) *2 = -6

-40 - (-6)

Add and subtract (left to right):

-40 - (-6) = -34

Your Answer Is -34

plz mark me as brainliest :)

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Arisa [49]

Answer:

Option A

Step-by-step explanation:

By using the definition of an exterior angle of a triangle,

"Measure of the exterior angle of a triangle is equal to the sum of measures of the opposite interior angles"

m∠STP = m∠SWT + m∠STW

Substitute the measures of the angles from the picture attached,

15x = (7x + 1) + (7x + 6)

15x = (7x + 7x) + (1 + 6)

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15x - 14x = 7

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Therefore, Option A will be the correct option.

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3 years ago
Systems of equations by substitution
Korolek [52]
Could you please clarify the question please by putting a question to be solved? Or are you asking for the definition?
6 0
3 years ago
PLEASE HELP I NEED THIS ASAP ! 100 POINTS!!
Finger [1]

Answer:

Part A: The population are the American adult citizens, excluding the ones from Alaska and Hawaii. The population is the people which the sample is trying to represent, as a hole.

The sample is a portion of this population, and in this case is represented by a randomly selected amount of people whose response to the interview has been selected.

Part B: The sample here has been selected in two steps. The first step is the one that we must pay attention to: the numbered list of one million responses from around the US (excluding Alaska and Hawaii). Because these responses were obtained by an online survey, the sample looks like a convenience sampling, as it depends on the availability and willingness from participants to take part of the study (is not compulsory for everyone, so not everyone is going to response, then there are people that is not going to be represented by). The second step is the random selection of a part of the previous responses. This last part will ensure that, the individuals that took part of the group that was interviewed, are well represented in the results.

Part C: As it was mentioned, there is a selection bias, because the information from the sample comes from a specific group of people that has certain features that may not represent all American adults citizens. For example, the opinion of  those people who do not use internet, will not be considered (and they may be a large number of persons). This situations weaken the conclusions obtained in the study, as they are not representative of the hole population.

Step-by-step explanation:

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2 years ago
Dont skip help me plzzz will mark brainliest
Yakvenalex [24]

Answer:

(6,-6)

Step-by-step explanation:

well if you count over to the right 6 and down 6 that points would be

(6,-6)

3 0
3 years ago
Read 2 more answers
Please help me im crying over this question
denis23 [38]

Answer:

y = 2x - 2

Step-by-step explanation:

y= mx+b

m= slope

b= y-intercept (point on line where x= 0.... or the point where the line hits the y-axis)

Determine slope by using slope formula or by counting boxes

By counting boxes, you can see that each point is 2 units up, 1 unit right (2/1)

the slope is 2

the point where the line is touching the y-axis is (0, -2)

m = slope = 2

b  = y-intercept = -2

y = 2x + (-2) OR y = 2x -2

5 0
3 years ago
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