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3 years ago

In the following math problem, which operation should you do FIRST? 8 + 3(72 x 4) – 5 ÷ 2

2 answers:

8 0

PEMDAS says do this order of operations: parentheses, exponents, multiplication, division, addition, subtraction.
So, 72x4 is the first step.

posledela3 years ago

3 0

According to the PEMDAS rule
the parentheses () should be solved first

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Find the indefinite integral. (use c for the constant of integration.) sin3 5θ cos 5θ dθ

Elina [12.6K]

I'm guessing you mean

$\displaystyle\int\sin^35\theta\cos5\theta\,\mathrm d\theta$

Let $t=5\sin\theta$ . Then $\mathrm dt=5\cos5\theta\,\mathrm d\theta$ . So we have

$\displaystyle\int\sin^35\theta\cos5\theta\,\mathrm d\theta=\frac15\int\sin^35\theta(5\cos5\theta)\,\mathrm d\theta$

$=\displaystyle\frac15\int t^3\,\mathrm dt$

$=\dfrac{t^4}{20}+C$

$=\dfrac{\sin^4\5\theta}{20}+C$

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3 years ago

4x+12=-7y<br> -y+12=4x<br><br> PLS HELP!!!!<br> Addition/ Elimination method

hoa [83]

4×+7y=-12 __ -4x-y=-12 ________ 0x+6y=-24 , so you eleminated by it self 6y/6=-24/6 , you get : y=-4 and then you plug in 4x+7(-4)=-12 , that's your answer 4x-28 =-12 , you divided in both side 4x=-12+28 , 4x=16 , and then x=16/4 =4 , so x=4

3 0

3 years ago

In the diagram of PARALLELOGRAM ABCD, segment BE is perpendicular to segment CED, segment DF is perpendicular to BFC and segment

tiny-mole [99]

Answer:

In parallelogram ABCD

FD is perpendicular to BC

BE is perpendicular to CD

Consider triangle BEC and triangle DFC

FC = EC (Given)

Angle BEC = Angle DFC (=90°)

Angle BCE = Angle DCF (common)

Therefore triangle BEC is congruent to triangle DFC (AAS congruency)

DF = BE (CPCT)

Since the altitudes are equal their bases will also be equal

Therefore BC = DC

Therefore BC = DC = AD = AB

Therefore ABCD is a rhombus

Hope this helps!

Mark me as brainliest

3 0

3 years ago

What part of 35 is 56? *not a percent* help pls

lesantik [10]

Expressed as a fraction 56 is 56/35 of 35. That fraction can be reduced, and expressed several ways.

56/35 = 8/5 = 1 3/5 = 1.6

56 is 1 3/5 of 35

56 is 1.6 times 35

5 0

2 years ago

There are 90 new houses being built in a neighborhood. Last month, 13 of them were sold. This month, 15 of the remaining houses

Tcecarenko [31]

62 because 90 minus 15, minus 13, is equal to 62

8 0

2 years ago

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