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3 years ago

Please help brain fam!!!

Mathematics

2 answers:

Ber [7]3 years ago

8 0

Your answer is <span>∠7 and ∠8 are supplementary because they are a pair of adjacent angles that form a straight line.

We know that </span>∠7 and ∠8 are supplementary because they form a straight line, and straight lines have a total of 180 degrees.

Since the two angles are supplementary, we can eliminate the 2nd and 3rd choices.

∠7 and ∠8 are not corresponding angles, which leaves us with option 4.

Best of luck!

~collinjun0827, Junior Moderator

Alex787 [66]3 years ago

5 0

The last statement. they are supplementary angles because they make 180 degrees. and they aren't corresponding, they're adjacent, meaning side by side sharing an arm. and they form a straight line

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Is brightness of light qualitative or quantitative

Marta_Voda [28]

Brightness of light would be an example of a qualitative characteristic. Quantitative is more used with numbers for example, numbers of things, how many of something, while as qualitative is used for characteristics, such as, color, brightness.

Helpful hint: remember QUANT = HOW MANY OF
QUAL = QUALITY = LOOKS

Hope this helps! Let me know if you don't understand !

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2 years ago

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An exponential function is written y=a(b^x) Which variable determine if the function is increasing or decreasing?

Anastaziya [24]

Answer:

Step-by-step explanation:

if b is less than 1, it is a decreasing function; if b is more than 1, it is an increasing function

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2 years ago

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10 G cubed -8 G squared + 5 g - 14 times 10 G squared + 12 G

likoan [24]

(10g^3 - 8g^2 + g - 14)(10g^2 + g)

Multiply eah term by 10g^2 and then add it to each term times g

100g^5 - 80g^4 + 10g^3 - 140g^2 + 10g^4 - 8g^3 + g^2 - 14g)

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100g^5 - 70g^4 + 2g^3 - 139g^2 - 14g

Answer: 100g^5 - 70g^4 + 2g^3 - 139g^2 - 14g

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2 years ago

Which number sentence is not true?A.|-4.5| = 4.5 B.|0| < |-45| C.|45| > 0 D.|4.5| > |-45|

IRISSAK [1]

Answer:

B.|0| < |-45|

Step-by-step explanation:

B is right because -45 is a negative and 0 isn't, 0 is bigger than -45. And A. C. and D. are all correct.

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2 years ago

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There was a junior and senior division for the runners in the Friendly 5K Race. Two friends, Boomer and Paulina,

djyliett [7]

Answer:

The correct option is;

Because Boomer has a larger standardized score, he did better relative to his division than Paulina

Step-by-step explanation:

The standard score of Boomer in the junior division = -0.23

The standard score of Paulina in the senior division = -0.28

We note that the standard score is the same as the z-score which is given as follows;

$Z=\dfrac{x-\mu }{\sigma }$

Where;

μ = The mean or average score (average speed of the runners in a division)

x = The recorded score (the speed recorded by a given runner)

σ = The standard deviation of the data set (of the division)

Therefore, given that we have;

The standard score of Boomer in the junior division = -0.23

The standard score of Paulina in the senior division = -0.28

Therefore, since -0.23 > -0.28, we have;

The standard score of Boomer > The standard score of Paulina

Which gives;

Because Boomer has a larger standardized score, he did better relative to his division than Paulina

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2 years ago

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