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Masteriza [31]
4 years ago
12

Two angles are supplementary angles if the sum of their measures is 180. Find two supplementary angles such that the measure of

the first angle is 18 degrees less than three times the measure of the second. What is the measure of the first and second angle
Mathematics
1 answer:
Stells [14]4 years ago
6 0
3x-18+x=180
4x-18=180
198=4x
<span>49.5=x
</span>
Angle 1 is <span>49.5 degrees
Angle 2 is 130.5 degrees</span>
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Someone please send help lol. I made a recursive statement for a project but I'm not exactly the best with solving them.
Kitty [74]

Answer:

It would take 4 weeks

Step-by-step explanation:

We can solve this problem most easily by forming it into an equation. We could represent weeks as <em>w.</em>

Since you train 5 more minutes every week, we could represent that as 5<em>w</em>, showing that you work 5 minutes times the number of weeks you worked out.

The constant would be adding 10, since you started out working 10 minutes a day. Now lets just write the equation!

10+5<em>w</em>=30

All we have to do is solve.

Subtract 10 on both sides to cancel out the positive 10.

5<em>w</em>=20

Now just divide both sides by 5 to isolate the <em>w</em>.

w=4

It would take him 4 weeks

Hope this helps!

5 0
3 years ago
A car traveled 133 miles in 4 3/4 hours. What was the cars average speed in miles per hour?
nirvana33 [79]

4 3/4 = 19/4

 

133/(19/4) = 133(4/19) = 1197/19 = 63 mph

6 0
3 years ago
Could somebody help me with this please? i forgot how to do these.
goblinko [34]
Since a full circle has 360degrees and this circle only has two angles, subtract the arc of the known angle to find the arc of the unknown angle.

Angle DGF + angle DEF= 360degrees

Angle DGF + 70degrees= 360 degrees

Angle DGF = 290 degrees

The arc of the unknown angle is 290 degrees
4 0
3 years ago
Which transformations have been applied to the graph of f(x) = x2 to produce the graph of g(x) = –5x2 + 100x – 450? Select three
RSB [31]

Answer:

The graph of f(x) is shifted up 50 units

The graph of f(x) is shifted right 10 units

The graph of f(x) is reflected over the x-axis

Step-by-step explanation:

we have

f(x)=x^{2}

This is a vertical parabola open upward

The vertex is a minimum

The vertex is the origin (0,0)

g(x)=-5x^{2}+100x-450

This is a vertical parabola open downward

The vertex is a maximum

The first thing to note is that fx) is a parabola that opens up and g(x) opens down, so a reflection across the x-axis must have been applied.

Find the vertex of g(x)

Convert to vertex form

g(x)=-5x^{2}+100x-450

Complete the square

g(x)=-5(x^{2}-20x)-450

g(x)=-5(x^{2}-20x+100)-450+500

g(x)=-5(x^{2}-20x+100)+50

g(x)=-5(x-10)^{2}+50

The vertex is the point (10,50)

so

To translate the vertex of (0,0) to (10,50)

The rule of the translation is

(x,y) ------> (x+10,y+50)

That means ----> The translation is 10 units at right and 50 units up

therefore

The transformations are

The graph of f(x) is shifted up 50 units

The graph of f(x) is shifted right 10 units

The graph of f(x) is reflected over the x-axis

5 0
3 years ago
Read 2 more answers
Solve the inequality. <br> x+9&lt;15 <br><br> 5&gt;2+y<br><br> z-2.3&lt;4.7 <br> 6
drek231 [11]

Answer:

Step-by-step explanation:

x+9<15

x<6

5>2+y

y<3

z-2.3<4.7

z<7

5 0
3 years ago
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