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Dafna11 [192]
3 years ago
12

15 _2_3 = 9 Fill in the gaps from left to right.

Mathematics
2 answers:
ruslelena [56]3 years ago
8 0
15-2x3=9 following the rule of PEMDAS
umka21 [38]3 years ago
8 0

Answer:

-, x

Step-by-step explanation:

15 - 2 x 3 = 9

Remember PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction)

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Answer:

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4 years ago
Nachelle goes out to lunch. The bill, before tax and tip, was $8.10. A sales tax of 4% was added on. Nachelle tipped 17% on the
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Step-by-step explanation:

Nachelle goes out to lunch. The bill, before tax and tip, was $8.10. A sales tax of 4% was added on. Nachelle tipped 17% on the amount after the sales tax was added. How much was the sales tax? Round to the nearest cent.

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2 years ago
What is 0.096 in word for
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6 0
3 years ago
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(cot^2x - 1)/(csc^2x) = cos2x​
Alex787 [66]

Answer:

Step-by-step explanation:

The idea here is to get the left side simplified down so it is the same as the right side. Consequently, there are 3 identities for cos(2x):

cos(2x)=cos^2x-sin^2x,

cos(2x)=1-2sin^2x, and

cos(2x)=2cos^2x-1

We begin by rewriting the left side in terms of sin and cos, since all the identities deal with sines and cosines and no cotangents or cosecants.  Rewriting gives you:

\frac{\frac{cos^2x}{sin^2x} -\frac{sin^2x}{sin^2x} }{\frac{1}{sin^2x} }

Notice I also wrote the 1 in terms of sin^2(x).

Now we will put the numerator of the bigger fraction over the common denominator:

\frac{\frac{cos^2x-sin^2x}{sin^2x} }{\frac{1}{sin^2x} }

The rule is bring up the lower fraction and flip it to multiply, so that will give us:

\frac{cos^2x-sin^2x}{sin^2x} *\frac{sin^2x}{1}

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5 0
3 years ago
Which expression represents the phrase below?
Lorico [155]

Answer: The answer would be B. 5x - 10

Step-by-step explanation:    I’m positive because I will only answer questions if I’m 100% sure. Hope you do well on your test or quiz!! Good luck!

4 0
2 years ago
Read 2 more answers
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