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Rudiy27
3 years ago
11

Hey, I need help BAD!! I am doing PEMDAS. 7+(5times6)45+9 Please help me!! Thanks!

Mathematics
1 answer:
leonid [27]3 years ago
4 0

Answer:1

<h2>1,366</h2>

Step-by-step explanation:

P - parenthsis

E - exponents

M - multiplication

D - division

A - addition

S - subtraction

<h3>STICK TO THE ORDER:</h3>

7 + 5 x (6 x 45) + 9 = 1,336 ( Not the pemdas order)

But,

<h3>7 + (5 x 6)45 + 9 = 1,366  is the correct order for using PEMDAS.</h3>
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serg [7]

answer =

y = kx ⇒

k = y/x = 5/7

6 0
3 years ago
Find all the solutions in there interval (0,2pi) for cos5x=-1/2
oee [108]

Answer:

\frac{2\pi}{15},\frac{4\pi}{15},\frac{8\pi}{15},\frac{2\pi}{3},\frac{14\pi}{15}, \frac{16\pi}{15}, \frac{4\pi}{3},\frac{22\pi}{15}, \frac{26\pi}{15}, \frac{28\pi}{15}

Step-by-step explanation:

Solving trigonometric equations.

We are given a condition and we must find all angles who meet it in the provided interval. Our equation is

cos5x=-\frac{1}{2}

Solving for 5x:

5x=\frac{2\pi}{3}+2n\pi

5x=\frac{4\pi}{3}+2n\pi

The values for x will be

x=\frac{\frac{2\pi}{3}+2n\pi}{5}

x=\frac{\frac{4\pi}{3}+2n\pi}{5}

To find all the solutions, we'll give n values of 0, 1, 2,... until x stops belonging to the interval (0,2\pi)

For n=0

x=\frac{\frac{2\pi}{3}}{5}=\frac{2\pi}{15}

x=\frac{\frac{4\pi}{3}}{5}=\frac{4\pi}{15}

For n=1

x=\frac{\frac{2\pi}{3}+2\pi}{5}=\frac{8\pi}{15}

x=\frac{\frac{4\pi}{3}+2\pi}{5}=\frac{2\pi}{3}

For n=2

x=\frac{\frac{2\pi}{3}+4\pi}{5}=\frac{14\pi}{15}

x=\frac{\frac{4\pi}{3}+4\pi}{5}=\frac{16\pi}{15}

For n=3

x=\frac{\frac{2\pi}{3}+6\pi}{5}=\frac{4\pi}{3}

x=\frac{\frac{4\pi}{3}+6\pi}{5}=\frac{22\pi}{15}

For n=4

x=\frac{\frac{2\pi}{3}+8\pi}{5}=\frac{26\pi}{15}

x=\frac{\frac{4\pi}{3}+8\pi}{5}=\frac{28\pi}{15}

For n=5 we would find values such as  

x=\frac{\frac{2\pi}{3}+10\pi}{5}=\frac{32\pi}{15}

x=\frac{\frac{4\pi}{3}+10\pi}{5}=\frac{34\pi}{15}

which don't lie in the interval (0,2\pi)

The whole set of results is

\frac{2\pi}{15},\frac{4\pi}{15},\frac{8\pi}{15},\frac{2\pi}{3},\frac{14\pi}{15}, \frac{16\pi}{15}, \frac{4\pi}{3},\frac{22\pi}{15}, \frac{26\pi}{15}, \frac{28\pi}{15}

6 0
4 years ago
What is the value of X?<br> 30<br> 60<br> 36<br> 48
Alisiya [41]
Take 36 and add it to 60 it gives you 96 then divide it by 2 and the answer is 48
3 0
3 years ago
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Segment EG is an angle bisector of angle FGH. Noah wrote a proof to show that triangle HEG is congruent to triangle FEG. Noah's
tangare [24]

Answer:

Line 3 is incorrect; we don't know anything about the lengths of HG, FG, HE, and EF, so this line is not valid based on the given information.

Step-by-step explanation:

In the Noah's poof of the construction, segment EG would divide angle FGH into two equal parts, which makes line 2 to be valid. i.e <EGH ≅ <EGF. And it can also be observed that line 4 is a valid theorem in proving the congruent nature of triangles.

But line 3 is not valid because of the condition of the statement. Furthermore, segments FG, EG, HG, HE and FE may not be congruent. Thus, the condition of the statement in line 3 is incorrect.

8 0
3 years ago
11. Solve for c <br><br> a+c<br> / = d<br> b<br><br>please help!!!!!​
statuscvo [17]

Answer:

34

Step-by-step explanation:

1+33=34

6 0
3 years ago
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