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sattari [20]
3 years ago
15

PLEASE HELP 50 POINTS

Mathematics
2 answers:
Rus_ich [418]3 years ago
7 0

Answer:

yo if u use desmmos then that can do it for you on a grapgh but i thinkk 1

Step-by-step explanation:

klemol [59]3 years ago
6 0

I think it is the last one or the first one if I'm wrong I'm sorry

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Evaluate ab+3b-a-5ab+2b if a= -3 and b=2
Paha777 [63]
Replace all variables in the given equation with the given values.

-6+6+3+30+4

Answer: 37
4 0
3 years ago
in a tournament, amanda scored 136 points in the first round and 127 points in the second round whatwas her percentage change be
skelet666 [1.2K]
Percent change = (new number - old number)/(old number) * 100

percent change = (127 - 136)/(136) * 100

percent change = -6.62%

Since the percent change is negative it is a percent decrease.

Answer: 6.62% decrease.
5 0
3 years ago
A graduate-level computer science course only gives the grades of A, B, or C. The department has determined that there should be
kupik [55]

Step-by-step explanation:

The null hypothesis: The department has determined that there should be 40% A’s given, 40% B’s given and 20% C’s given as final grades for the course

If  the p-value for this hypothesis test is = 0.000... and this number is lower than the 0.05 significance level, we reject the null hypothesis and conclude that from the result of our observation that final grades do not match this grading guidelines.

It means the grading guidelines was exceeded in terms of As, was  less in terms of Bs and was higher in terms of Cs i e the grading guidelines was not consistent with what was stated in the null.

6 0
3 years ago
In the figure, x ǁ y and a ǁ b.<br><br> What is m∠5?<br><br> m∠5 = °
Katena32 [7]
M∠1 =m∠2 =m∠3=<span><span><span>m∠4=</span>180-58=122°
</span>m∠5 = 58°</span>





6 0
3 years ago
1. as.at<br>2. (a/b)2 (a/b)<br>8<br>3. (3)-5<br>4. (x/y)"<br>5. (2m4n3)5<br>​
Nikolay [14]
1- I didn't understand it

2).. (a/b)² (a/b)⁸

= (a/b)²+⁸ = (a/b)¹⁰

3) 3-⁵ = 1/3⁵ = 1/243

4) (x/y)"

d/dx (x/y) = (1/y)
d/dx (1/y) = 0

5) (2m⁴n³)⁵

= 2⁵ × (m⁴)⁵ × (n³)⁵

= 32 × m²⁰ × n¹⁵

= 32m²⁰n¹⁵
5 0
3 years ago
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