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Mashutka [201]
3 years ago
13

Can you help me plssssss

Mathematics
2 answers:
joja [24]3 years ago
4 0
I’m pretty sure that x=9
Mkey [24]3 years ago
4 0

Answer:

x= 9

Step-by-step explanation:

90 = 33+ (6x+3)

-33    -33

57 = 6x+3

-3          -3

54 = 6x

/6      /6

9=x

x = 9 is the answer

plug it back in to check.

You might be interested in
Solve x: -3|2x+6|=12
kobusy [5.1K]

Answer:

I think the answer is x = -1

6 0
3 years ago
Geometry . Cosines / sines. Find a and round to the nearest 10th
Lorico [155]

This is the good part of Trigonometry, actually measuring triangles. It's much better than all the identities around sine and cosine and the rest, which actually have more to do with circles than triangles.

This part of trig has a short menu:

Law of Cosines. Three ways to write it, one is c^2 =a^2+b^2-2ab \cos C

Law of Sines: \dfrac{a}{\sin A} = \dfrac{b}{\sin B} = \dfrac{c}{\sin C}

Triangle angles: A+B+C=180^\circ

and two special cases of the Law of Cosines, the Pythagorean Theorem

C=90^\circ, \quad \quad c^2=a^2+b^2

and the Collinear Points Theorem:

C=180^\circ, \quad \quad c^2=a^2+b^2 - 2 a b \cos 180^\circ = a^2+b^2+2ab=(a+b)^2

c = a+b

Here we choose Triangle Angles followed by Law of Sines:

A = 180 - 105 -15 = 60 degrees

\dfrac{a}{\sin 60^\circ}= \dfrac{2}{\sin 105^\circ}

a= \dfrac{2 \sin 60^\circ}{\sin 105^\circ} = 1.793...

Answer: 1.8 cm

When I was a student we'd be expected to get \sin 105^\circ exactly and get

a = 3 \sqrt{2} - \sqrt 6

But that was before online homework.

5 0
3 years ago
What are the domain and range of the function on the graph?
Masja [62]

<u>NOT</u> Answer: B

Step-by-step explanation:

Don't try and use the wrong answer below!

3 0
3 years ago
Read 2 more answers
Question 1 (1 point)
katrin [286]

Answer: 400

Step-by-step explanation:

25÷4=6.25

2500÷6.25=400

7 0
3 years ago
You invest $500 in an account with an annual interest rate of 1.1%, compounded continuously. How much money is in the account af
Alexxx [7]
Original amount * ((100 + interest) / 100)^years

500 * 1.011^5 = <span>528.111691683 = $528</span>


3 0
3 years ago
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