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suter [353]
3 years ago
13

Please help me on number 21

Mathematics
1 answer:
max2010maxim [7]3 years ago
5 0
21.   D. is the answer.  Angle Q is 75 degrees.  X=30.  The triangle is an isosceles angle so therefore there are 2 angles are congruent to each other, Angle R and Angle Q.   All three of the angles should add to 180 degrees.
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20 penguins on a ice berg 9 jump in the water 8 move to a island how many are left on the ice berg​
dsp73

Answer:

3

Step-by-step explanation:

20-9=11

11-8=3

3 is the final answer

4 0
3 years ago
Can someone please help ASAP!
Zolol [24]

Pick’s Theorem is used to find the areas of figures on lattices easily. The formula is:

A = (B)/2 + I - 1, where B is the number of points on the border of the shape, and I is the number of points inside the shape.

Here, there are 8 points on the outside of the shape, and there are 12 points inside the shape. So, we do:

8/2 + 12 - 1 = 4 + 12 - 1 = 15 units squared.

We can check by finding the areas of the non-shaded region and subtracting that area from the whole rectangle area of 4 * 10 = 40:

4 * 1 + (3 * 1)/2 + 1 * 9 + (3 * 1)/2 + (9 * 2)/2 = 25

40 - 25 = 15, so we’re right!

The answer is 15 units squared, or choice (B).

7 0
3 years ago
GET 95 POINTS Let f(x) = 1/x and g(x)=x² + 6x. What
Dimas [21]

Answer:

hey there hope this answer helps you out

Step-by-step explanation:

we have two functions f(x) and g(x) such that

f(x) =  \frac{1}{x}

and

g(x) =  {x}^{2}  + 6x

solving for f ° g, we'll substitute the x in f(x) by the value of g(x)

fog =  \frac{1}{g(x)}

fog \:  = \frac{1}{ {x}^{2} + 6x }

taking x common in denominator

fog =   \frac{1}{x(x + 6)}

for a function to exist it should not have 0 in its denominator

checking the values of x for which the denominator of f ° g becomes 0 :-

  • x = 0 and
  • x = -6

so the function doesn't exist at values x = 0, -6

<h3>So, <u>0, -6</u> cannot be in the domain of f°g</h3>
5 0
3 years ago
Alg 1
V125BC [204]
The first and last term factor into (2x+7) since this is a perfect square trinomial the answer must be 28
3 0
3 years ago
TU=2x, UB=3x+1, TB=21
Stella [2.4K]
X would be equal to 21/8
8 0
3 years ago
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