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solniwko [45]
3 years ago
8

Is the first one correct and what are the ages? Thanks

Mathematics
1 answer:
Fantom [35]3 years ago
8 0

Answer:

a = 30°

Step-by-step explanation:

We need to find the value of a.

We know that, a straight line makes an angle of 180°.

In this case,

a+3a+2a = 180

6a = 180

a = 30°

So, the value of a is equal to 30°.

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What is the angle of elevation of the sun when a 42​-ft mast casts 16 ft​ shadow?<br> thanks
Elden [556K]

Answer:

Heres how you do it

Step-by-step explanation:

10+2 =12 which means 72

6 0
3 years ago
Find the <br> x-intercept and <br> y-intercept of the line.
vova2212 [387]
<h3><u>The x intercept is at (-7, 0).</u></h3><h3><u>The y intercept is at (0, 1).</u></h3>

To find both the x and the y intercept, we need to solve one at a time.

For the x intercept, we need to make the value of y equal to 0, and solve for x.

-x + 7y = 7

-x + 7(0) = 7

-x = 7

Multiply both sides by -1.

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The y intercept is at 0, 1.

5 0
3 years ago
I need help with this...
lisov135 [29]

   ln 5
e              =    ?
                                    x
Keep in mind that y=e     and y = ln x are inverse functions of one another.
  ln 5
e       ,  we can drop both the "e" and the "ln 5."  We are left with 5 (answer).
                                                                                        ln 5
Alternatively, we could take the ln of both sides of y = e

which will result in ln y = (ln 5) ln e.  Note that ln e = 1 (these two functions are inverses of one another).

Then we are left with ln y = ln 5.  Dropping the "ln" operator from both sides,

y=5 (same as before).
8 0
3 years ago
How do you solve 10.50 X 8.5
emmasim [6.3K]

Answer:

89.25

Step-by-step explanation:

because:

it just is

6 0
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Chang made $144 for 8 hours of work at the same rate how many hours would he have to work to make 234
olganol [36]

Answer:

ben daha küçük olduğum için özür dilerim yapamam 4. sınıfa gidiyorum

Step-by-step explanation:

VE puan kazanmam gerek

3 0
3 years ago
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