4 years ago

Is this generalization true? All triangles have at least 2 acute angles

1 answer:

7 0

Yes, all triangles have at least two acute angles. If there were two right angles, it would not be a closed figure. If there were two obtuse angles, there would be more than 180 degrees.

Hope this helps =)

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I need help with 3 and 4

frosja888 [35]

Answer:

Step-by-step explanation:

3) G

Step-by-step explanation:

Q(-1,-1) R(3,1) S(2,-4)

x+2 y+3 translation then rotation 180 (x,y) be (-x,-y)

Q -1+2 -1+3 (1,2) (-1,-2)

R 3+2 1+3 (5,4) (-5,-4)

S 2+2 -4+3 (4,-1)

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4 years ago

(x +8/3)2 +y2=1 what is it's center (. ,. ) what is it's radius

makkiz [27]

Answer: Center is $(-\frac{8}{3}, 0)$ and radius is 1.

Step-by-step explanation: The center of a circle $(x-a)^{2} + (y-b)^{2} = r^{2}$ is (a,b) & the radius is r. a= $--\frac{8}{3} = \frac{8}{3}$ , b=0, and r= $\sqrt{1}$ =1

5 0

3 years ago

(03.04) What is the vertex of the graph of y = −4(x + 2)2 + 5? (1 point) (2, 5) (−2, 5) (5, −2) (5, 2)

Gnoma [55]

Answer:

(-2, 5)

Step-by-step explanation:

The form you're trying to match is the vertex form of the equation of a parabola:

y = a(x -h)^2 +k . . . . . . . vertex (h, k)

You have ...

y = -4(x +2)^2 +5

Comparing forms, you see that a=-4, h=-2, k=5.

Then the vertex (h, k) is (-2, 5).

6 0

4 years ago

Gabrielle's age is two times Mikhail's age. The sum of their ages is 84. What is Mikhail's age?

Dvinal [7]

Answer:

Step-by-step explanation:

Mikhail's age:x

Gabrielle's age:2x

x+2x=84

3x=84

x=84÷3

x=28

6 0

3 years ago

Read 2 more answers

Can anyone help me: solve x/5=7 solve x/2=6.5

tester [92]

Answer:

a. 35

b. 13

Step-by-step explanation:

a. x/5= 7

Cross Multiplication

x= (7)(5)

x= 35

b. x/2= 6.5

Cross Multiplication

x=(6.5)(2)

x=13

3 0

3 years ago