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Tomtit [17]
3 years ago
14

Which number is not in scientific notation? 9 x 10^19 7.8 x 10^6 1.45 x 10^-7 0.33 x 10^-15

Mathematics
2 answers:
Svetach [21]3 years ago
4 0

Answer:

please tell me the answer i need it thank you

Step-by-step explanation:

Len [333]3 years ago
3 0
1.45 x 10^-7 isn't in scientific notation because if it's negative, the decimal starts before the first real number, right?
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Multiply and Simplify <br><br> cos(theta) sin(theta)(sec (theta) + csc (theta))
fredd [130]

Before I put out my answer, I just want make note that sec() = 1 / cos() and csc () = 1 / sin ()

1) Once you distribute cos()sin() to sec(), the cos() will cancel out with the sec() to make it just sin(), and once cos()sin() is distributed to csc(), the sin() will cancel out with the cos()

2) After doing that you should just be left with sin() + cos()

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3 0
3 years ago
there are 11 students in summer school. The teacher took a survey of how many pets the students had in their homes. The students
masya89 [10]

Answer:

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6 0
2 years ago
Find an equation of the tangent line to the curve 2(x2+y2)2=25(x2−y2) (a lemniscate) at the point (−3,1). An equation of the tan
valina [46]

2(x^2+y^2)^2=25(x^2-y^2)

Let y=y(x), so that differentiating both sides wrt x gives

4(x^2+y^2)\left(2x+2y\dfrac{\mathrm dy}{\mathrm dx}\right)=25\left(2x-2y\dfrac{\mathrm dy}{\mathrm dx}\right)

If x=-3 and y=1, the above reduces to

40\left(-6+2\dfrac{\mathrm dy}{\mathrm dx}\right)=25\left(-6-2\dfrac{\mathrm dy}{\mathrm dx}\right)\implies\dfrac{\mathrm dy}{\mathrm dx}=\dfrac9{13}

This is the slope of the tangent line, which has equation

y-1=\dfrac9{13}(x+3)\implies\boxed{y=\dfrac{9x+40}{13}}

7 0
2 years ago
PLEASE HELP !?!????!?
miss Akunina [59]

Answer: Supplementary Angles

Step-by-step explanation:

Supplementary angles are a pair of angles whose sum is 180°. 45° and 135° add up to 180°. Therefore, the answer is supplementary angles.

4 0
1 year ago
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Levart [38]
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so ur equation is : x = -7
5 0
3 years ago
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