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Tju [1.3M]
3 years ago
10

I WAS ONLY ABLE TO SELECT 40 PTS THIS TIME, PLS ANSWER THIS ONE IT HAS THE PICTURE WITH IT.

Mathematics
2 answers:
lara31 [8.8K]3 years ago
6 0
∠1 and 105° are supplementary angles. (supplementary = 180°)

180 - 105 = 75°

∠1 = 75°

∠1 and ∠2 are corresponding angles, and so there measurements will be the same

∠1 = ∠2
∠1 = 75°
∠2 = 75°


105° and ∠3 are same side, and are corresponding angles. Therefore, ∠3 = 105°

<span>m∠1=75°

180</span>°<span> (the measurement of a straight angle).

Subtract the 105</span>° (given) from the straight angle
<span>
180 - 105 = 75

</span>m∠1=75°<span>

</span><span>hope this helps</span>
BaLLatris [955]3 years ago
4 0
Okay so the first one is right.
The second one is wrong.
the third one is right.
The forth one is wrong.
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Find a transformation of sin(x) that gives the following <br><br> a. <br><br> b.
riadik2000 [5.3K]

Answer:

a) f(x) = 3sin(2x - π/2) + 1

b) f(x) = 2sin(2x + π) + 2

Step-by-step explanation:

∵ f(x) = Asin(Bx - C) + D

Where ΙAΙ is the the amplitude , 2π/ΙBΙ is the period , -C/B is the horizontal shift and D is the vertical shift

a) The amplitude is 3

   The period is π

    Shift phase: horizontally π/4 to the right , vertically 1 unit up

b) The amplitude is 2

   The period is π

    Shift phase: horizontally π/2 to the left , vertically 2 unit up

4 0
3 years ago
Each angle of the equilateral triangle in the figure has measure (2x + 12)°. Find the value of x. answers: 24 39 12 84
Scorpion4ik [409]

Answer:

24

Step-by-step explanation:

Equilateral has 3 angles that add up to 180, and all angles are equal

3(2x+12) = 180

6x+36 = 180

180-36 = 6x

144 = 6x

24 = x

3 0
3 years ago
Read 2 more answers
What property comes first in 2(x+4)=6
Reil [10]

Answer:the (c+4)

Step-by-step explanation:

That becomes before anything

8 0
3 years ago
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The line $y = 3$ intersects the graph of $y = 4x^2 + x - 1$ at the points $A$ and $B$. The distance between $A$ and $B$ can be w
raketka [301]

Answer:

61

Step-by-step explanation:

Let's find the points A and B.

We know that the y-coordinates of both are 3.

So let's first solve:

3=4x^2+x-1

Subtract 3 on both sides:

0=4x^2+x-1-3

Simplify:

0=4x^2+x-4

I'm going to use the quadratic formula, x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}, to solve.

We must first compare to the quadratic equation, ax^2+bx+c=0.

a=4

b=1

c=-4

\frac{-1 \pm \sqrt{1^2-4(4)(-4)}}{2(4)}

\frac{-1 \pm \sqrt{1+64}}{8}

\frac{-1 \pm \sqrt{65}}{8}

Since the distance between the points A and B is horizontal. We know this because they share the same y-coordinate.This means we just need to find the positive difference between the x-values we found for the points of A and B.

So that is, the distance between A and B is:

\frac{-1+\sqrt{65}}{8}-\frac{-1-\sqrt{65}}{8}

\frac{-1+\sqrt{65}+1+\sqrt{65}}{8}

\frac{2\sqrt{65}}{8}

\frac{\sqrt{65}}{4}

If we compare this to \frac{\sqrt{m}}{n}, we should see that:

m=65 \text{ and } n=4.

So m-n=65-4=61.

5 0
3 years ago
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Three times a certain number added to its square is 10. Find the number(s).
iVinArrow [24]

Answer:

2

Step-by-step explanation:

2 squared is 4. 3 x 2 = 6. 6+4=10

7 0
3 years ago
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