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IgorC [24]
3 years ago
6

A triangular pennant has two sides that are 90 cm long each with an included angle of 25°.

Mathematics
2 answers:
rosijanka [135]3 years ago
7 0
Hmph... 

The area is 1,711.67 cm².. 

Love, grace..-

tatuchka [14]3 years ago
3 0

Answer:

After taking the test, I found that the correct answer is 1,711.6

I had originally wrote 1,711.7 because I believed it needed to be rounded. I'm not entirely sure why it was incorrect when rounded up.

Hope this helps!!

:)

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Please help. Look at screenshot
Citrus2011 [14]

Answer:

a.

<u>Increasing:</u>

x < 0

x > 2

<u>Decreasing:</u>

0 < x < 2

b.

-1 < x < 2

x > 2

c.

x < -1

Step-by-step explanation:

a.

Function is increasing when it is going up as we go rightward

Function is decreasing when it is going down as we go rightward

We can see that as we move up (from negative infinity) until x = 0, the function is increasing. Also, as we go right from x = 2 towards positive infinity, the function is going up (increasing).

So,

<u>Increasing:</u>

x < 0

x > 2

The function is going down, or decreasing, at the in-between points of increasing, that is from 0 to 2, so that would be:

<u>Decreasing:</u>

0 < x < 2

b.

When we want where the function is greater than 0, we basically want the intervals at which the function is ABOVE the x-axis [ f(x) > 0 ].

Looking at the graph, it is

from -1 to 2 (x axis)

and 2 to positive infinity

We can write:

-1 < x < 2

x > 2

c.

Now we want when the function is less than 0, that is basically saying when the function is BELOW the x-axis.

This will be the other intervals than the ones we mentioned above in part (b).

Looking at the graph, we see that the graph is below the x-axis when it is less than -1, so we can write:

x < -1

4 0
3 years ago
What is the solution of the system of equations?<br><br> Y=-3x+8<br> Y=-5x+2
olganol [36]

Answer:

x=-3 y=17 (-3;17)

Step-by-step explanation:

-3x+8-y=0

-5x+2-y=0

-2x-6=0

So: x=-3

While....by substituting: y=17

3 0
3 years ago
??????????????????????
gtnhenbr [62]

Answer:

110 degrees

Step-by-step explanation:

I don't know if that is correct.

6 0
3 years ago
Working simultaneously, four fudge machines complete a big order in 32 hours. All the machines at the fudge factory work at the
Alinara [238K]

Answer:

4 Hours

Step-by-step explanation:

Let's say that the rate of the machines 1/x, because every time they complete an order, it takes them x hours. To find x, we have to add the the rates of the individual machines, which would equal the rate of the machines working together. We know that there are four machines working together at the same rate, and it took them 32 hours.

So:

1/x + 1/x + 1/x + 1/x = 1/32

1/4x = 1/32

4x = 32

x = 8

Thus, the rate of the machines is 1/8.

Now we have to find the time of the order with only half of the machines working together. This time, we don't know the combined rate, so I'll substitute it for y.

1/8 + 1/8 = 1/y

1/4 = 1/y

y = 4

The time taken to complete it is 4 hours.  

3 0
3 years ago
Read 2 more answers
The Jayden family eats at a restaurant that is having a 15% discount promotion. Their meal costs $78.64 before the discount, and
OLEGan [10]

Answer:

  $82.57

Step-by-step explanation:

The tip they leave is ...

  $78.64 × 0.20 = $15.73

The amount of the discount is ...

  $78.64 × 0.15 = $11.80

Then the total cost of the meal and tip is ...

  meal price - discount + tip

  $78.64 -11.80 +15.73 = $82.57

6 0
3 years ago
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