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Vikentia [17]
3 years ago
13

Can I get help with this? thanks.

Mathematics
1 answer:
Basile [38]3 years ago
6 0
The range is the value of y. We know that Ix-12I is always ≥0, no matter what x is, so Ix-12I-2 is always ≥ -2, the answer is B. 
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Trigonometry
Natasha_Volkova [10]

Answer:

Step-by-step explanation:

For a triangle the area is

A=\frac{1}{2}bh

If our triangle is isosceles and the 2 congruent sides each measure 4 and they include an angle of 40 degrees, let's say that the vertex angle is 40 and the sides that are not the base each measure 4.  If we drop an altitude from the vertex to the base, we cut the triangle into 2 right triangles, with the vertex angle being 20 degrees and the hypotenuse being 4.  To find the base, then, which is opposite the angle, we use the sin ratio:

sin(20)=\frac{b}{4} and

4sin(20) = b so

b = 1.368

But we need the whole base, and that is only half of it.  So

2b = 2.736

To find the height, which is adjacent to the angle, we use the cos ratio:

cos(20)=\frac{h}{4} and

4cos(20) = h so

h = 3.759

Now we have enough info to find the area of the triangle using the triangle area formula from above:

A=\frac{1}{2}(2.736)(3.759) and

A = 5 meters squared.

7 0
3 years ago
Find the closest point to y in the subspace w spanned by bold v 1v1 and bold v 2v2. yequals=left bracket start 4 by 1 matrix 1st
Dmitrij [34]

Answer:

See attached picture.

Step-by-step explanation:

6 0
3 years ago
You have a recipe for coconut cookies. The recipe makes 20 cookies. You need 100 cookies for a bake sale. Increase the recipe pr
Anon25 [30]

Answer2:

Step-by-step explanation:

1-2

3 0
3 years ago
Read 2 more answers
(15pts) factor each completly
Natali [406]
Your answers:

10) (m+7)(m+8) 11) (b-10)(b+2)

12) (k-4)(k+10) 13) (n-9)(n-8)

14) (7r+3)(r-2) 15) (5a+6)(a+2)

Hope it helps
5 0
3 years ago
Read 2 more answers
Help please!
Tamiku [17]
It's a parabolic curve, so quadratic is best
6 0
3 years ago
Read 2 more answers
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