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snow_tiger [21]
3 years ago
10

PLEASE HELP!!! give an explanation if you can

Mathematics
1 answer:
Goryan [66]3 years ago
8 0
Here I solved it for you on paper

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Find the length of the missing side
Solnce55 [7]

Answer:

C

Step-by-step explanation:

Using Pythagoras' identity in the right triangle

c² = 4² + 5² = 16 + 25 = 41 ( take the square root of both sides )

c = \sqrt{41}  ← exact solution → C

8 0
3 years ago
PLEASE HELP<br> which mapping diagram does NOT represent function from x-y
Bas_tet [7]

Answer:

Diagram 1

Step-by-step explanation:

This diagram does not represent a function because the x value 6 is outputting 2 different y values, 4 and 6. This goes directly against the rules of a function.

3 0
3 years ago
Read 2 more answers
According to a college survey 32% of all students work fulltime. Find the mean for the number of students who work full time in
VLD [36.1K]

Answer:

mean is equal to 5.12

Step-by-step explanation:

<em>We are given that 32% of college students work fulltime. We have to find the mean for the number of student s who are working full time in a sample of 16</em>

success rate, p = 32% = 0.32

Sample size is denoted as n = 16

The forumla of mean is given as

mean = sample size × success rate

mean = n × p

         = 16 × 0.32

         = 5.12

3 0
3 years ago
How do I solve for (2√5−√3)^2?
AleksandrR [38]

Answer:

23-4\sqrt{15}

Step-by-step explanation:

So we want to simplify:

(2\sqrt5-\sqrt3)^2

Note that this is in the format:

(a-b)^2

And we know that this is the same as:

(a-b)^2=a^2-2ab+b^2

Let 2√5 be a and let √3 be b. Thus:

(2\sqrt5-\sqrt3)^2\\=(2\sqrt5)^2-2(2\sqrt5)(\sqrt3)+(\sqrt3)^2

Simplify:

=(4(5))-4(\sqrt5)(\sqrt3)+(3)\\=20-4\sqrt{15}+3\\=23-4\sqrt{15}

And this cannot be simplified any further.

5 0
4 years ago
Read 2 more answers
Can somebody help me
Nuetrik [128]

Answer:

The second, and fourth choices are true.

Step-by-step explanation:

The symbol <  means less than  so the arrow will point to the LEFT.

Also -1/4 will not be a part of the solution. because the sign is less than.

Because the inequality is less than there will be an open circle at -1/4.

8 0
4 years ago
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