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Evgen [1.6K]
3 years ago
10

What is the value for b????

Mathematics
2 answers:
vampirchik [111]3 years ago
8 0

Answer:

60 degrees

Step-by-step explanation:

All interior angles in a triangle add up to 180. So if you have two already, just subtract both angles from 180 to get the last angle. The equation is:

65 + 55 + b = 180

120 + b = 180

-120         -120

___________

         b = 60

liq [111]3 years ago
4 0

Answer:

the value is 60

Step-by-step explanation:

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6(x-5) = 5(x+5)
Mariana [72]

Part 1:

6(x-5) = 5(x+5) (x = 55)

4y + 2 (-3 + 2y) = 1-y (x = 7/9)

Part 2:

4(a-6) = 8a - (4a-24) (No Solution)

4(2x-8) = 8(x-8) (No Solution)

2(3x-3) = -6x-6 (Identity (x = 0))


4 0
3 years ago
Please help me with this!!
nydimaria [60]

Answer:

Step-by-step explanation:

these triangles are not similar,  you can tell, b/c the one given angle and that they are both right triangles, so you also know that the other angle , that is not given is not the same, in the two.   hence the sides are not the same lengths or ratios of each other.  they are NA

6 0
2 years ago
What is the value of the expression shown below? 8 + (7 + 1) 2 ÷ 4 ⋅ 2
Leni [432]
The answer is 10

8+(8)2÷4·2    
8+16÷4·2    4·2=8 then 16÷8       
8+2=10

just use PEMDAS

6 0
3 years ago
Can someone help me on 2/3-3/8 show work
Nat2105 [25]

Answer:

It is 7/24

Step-by-step explanation:

So first you want a common denominator so we have to find the least common multiple of 3 and 8, which is 24.

Next you have to multiply the same to the numerator, I usually go by the phrase whatever you do to the bottom you do to the top. So 8 times 2 is 16 and 3 times 3 is nine.

Everything changed should be 16/24-9/24

then we do 16-9 is 7 and you never subtract the denominators so 2/3-3/8 is 7/24

8 0
3 years ago
Find the polar equation of the conic with the focus at the pole, directrix x = 4, and eccentricity 1.
BabaBlast [244]

Answer:

Choice D is correct

Step-by-step explanation:

The eccentricity of the conic section is 1, implying we are looking at a parabola. Parabolas are the only conic sections with an eccentricity of 1.

Next, the directrix of this parabola is located at x = 4. This implies that the parabola opens towards the left and thus the denominator of its polar equation contains a positive cosine function.

Finally, the value of k in the numerator is simply the product of the eccentricity and the absolute value of the directrix;

k = 1*4 = 4

This polar equation is given by alternative D

6 0
3 years ago
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