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aleksklad [387]
2 years ago
5

Help me pleaseeeeeeee

Mathematics
2 answers:
Ber [7]2 years ago
7 0

Answer:

72°

Step-by-step explanation:

just add the two smaller angles to get the whole angle

45.3 + 26.7 = 72.0

Whitepunk [10]2 years ago
7 0

Answer:

y= 72°

Step-by-step explanation:

If you add the two degrees you get 72.

45.3+26.7=y

45+26=71

.3+.7=1

71+1=72

Hope this helped.

A brainliest is always appreciated.

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Is X +3 a factor of 2X squared minus 2X -12
Fantom [35]

Answer: No, x+3 is not a factor of 2x^2-2x-12

========================================================

Explanation:

Let p(x) = 2x^2 - 2x - 12

If we divide p(x) over (x-k), then the remainder is p(k). I'm using the remainder theorem. A special case of the remainder theorem is that if p(k) = 0, then x-k is a factor of p(x).

Compare x+3 = x-(-3) to x-k to find that k = -3.

Plug x = -3 into the function

p(x) = 2x^2 - 2x - 12

p(-3) = 2(-3)^2 - 2(-3) - 12

p(-3) = 12

We don't get 0 as a result so x+3 is not a factor of p(x) = 2x^2 - 2x - 12

----------------------------------------

Let's see what happens when we factor p(x)

2x^2 - 2x - 12

2(x^2 - x - 6)

2(x - 3)(x + 2)

The factors here are 2, x-3 and x+2

3 0
2 years ago
To do so, the research has 100 high school students complete the maze with classical music playing. The mean time for these stud
Marizza181 [45]

Answer:

test statistic, z =  −1.74

Step-by-step explanation:

given data

students n = 100

mean time x  = 41.13 seconds

σ  = 5

we consider µ = 42

solution

we get here The test statistic that is express as

test statistic, z = \frac{x-\mu }{\frac{\sigma }{\sqrt{n}}}      ......................1

put here value and we will get

test statistic, z = \frac{41.13-42}{\frac{5 }{\sqrt{100}}}

test statistic, z =  −1.74

8 0
3 years ago
Solve for a <br> -3= 5a/7+4/7
Nastasia [14]

Answer:

a = -5

Step-by-step explanation:

4 0
3 years ago
3. What is the decimal equivalent of each
zaharov [31]

Answer:

a. 0.81818182

b. 0.8

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d. 0.55555556

Step-by-step explanation:

8 0
2 years ago
Question 13<br> HELPPP<br> Thanks
taurus [48]
Your answer is c ur welcome
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2 years ago
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