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Margaret [11]
2 years ago
14

[(8-2) x (3+2) -1] x 3

Mathematics
1 answer:
laila [671]2 years ago
7 0
<h3><u>Answer:</u></h3>

87 is your answer.

<h3><u>Step-by step solution:</u></h3>

Step 1: <em>According to the DMAS rule, simplify the values that are inside the brackets.</em>

  • => [(8 - 2) x (3 + 2) - 1] x 3
  • => [(6) x (5) - 1] x 3
  • => [6 x 5 - 1] x 3
  • => [30 - 1] x 3
  • => 29 x 3

Step 2: <em>According to the DMAS rule, next, simplify the values that are having multiplication.</em>

  • => 29 x 3
  • => 87
<h3><u>Final Answer:</u></h3>

Therefore, 87 is your answer.

Hoped this helped.

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Which equation has a solution of k = 6.5?
olga_2 [115]
Answer:

-7k = -45.5

Explanation:

You can solve this by plugging in the “k” to the problems that are listed.
If you were to plug 6.5 in for all those problems, you’d get:

-3(6.5) = -19.5

-1 + 6.5 = 5.5

-7(6.5) = -45.5

-2 + 6.5 = 4.5

So, in this case, looking at the ones I answered and looking at the problems listed, the correct answer would have to be -7k = -45.5.
4 0
3 years ago
Read 2 more answers
Choose the correct simplification of the expression (2ab5)3. (1 point) Question 8 options: 1) 8ab15 2) 8a3b8 3) 5a3b15 4) 8a3b15
d1i1m1o1n [39]

Answer:

4). 8a^{3}b^{15}

Step-by-step explanation:

The Given expression is that,

(2ab^{5})^{3}

On simplifying,

(2ab^{5})^{3} = (2ab^{5} )(2ab^{5}) (2ab^{5})

= (2^{3} ) * (ab^{5})^{3}

= (2×2×2) × (ab^{5} × ab^{5} × ab^{5})

= 8a^{3}b^{15}

Thus, <u>option 4</u> i.e.  8a^{3}b^{15} is the correct simplification of the given expression.

4 0
3 years ago
Suppose cos(O) = 12/13, Quadrant I. Find sin(O).<br> A:13/12<br> B:5/13<br> C:13/5<br> D:5/12
noname [10]

Answer:

B: 5/13

Step-by-step explanation:

pythagoras theorem: a^2 + b^2 (sides) = c^2 (hypotenuse)

a^2 + 12^2 = 13^2

a^2 + 144 = 169

a^2 = 25

a = 5

sin = opp/hyp

sin 5/13

Hope this helps

7 0
3 years ago
A rectangle is removed from a right triangle to create the shaded region shown below. Find the area of the shaded region. Be sur
Finger [1]

Answer:

The area of the triangle should be: [(1 + 5 + 4) × 11]/2= 55 (ft²)

The area of the rectangle should be: 5 × 2 = 10 (ft²)

The area of the shaded region is: 55 - 10 = 45 (ft²)

7 0
3 years ago
What is the value of 6 in 4.769
mixer [17]
<span>The <u>correct answer</u> is:

6/100.

Explanation<span>:

We look at place value to answer this. The digit in front of the decimal is the ones; directly after the decimal we have the tenths; behind this we have the hundredths; and behind this we have the thousandths.

6 is two places behind the decimal; this is the hundredths place. This means it is six hundredths, or 6/100.</span></span>
7 0
3 years ago
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