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3 years ago

Help pls I will get a hit if I don’t

Mathematics

2 answers:

White raven [17]3 years ago

8 0

Answer:

d. 87.92

Step-by-step explanation:

3.14*2*14=87.92

i know its right im positive

dem82 [27]3 years ago

7 0

Answer:

87.92

Step-by-step explanation:

The formula for the circumference of a circle is 2πr.

We know that r is 14 and π is 3.14.

Let's plug in 3.14 for π and 14 for r.

2 * 3.14 * 14 = 87.92

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Finding an Equation of a Tangent Line In Exercise, find an equation of the tangent line to the graph of the function at the give

Alchen [17]

Answer:

$75x-70y=27$

Step-by-step explanation:

We are given that

$y=ln(x(x+3)^{\frac{1}{2}})$

Point ( $\frac{6}{5},\frac{9}{10}$ )

We have to find the equation of tangent line to the given graph.

Differentiate w.r.t x

$\frac{dy}{dx}=\frac{1}{x(x+3)^{\frac{1}{2}}}\times ((x+3)^{\frac{1}{2}+x\times \frac{1}{2}(x+3)^{-\frac{1}{2}})$

By using formula

$\frac{d(lnx)}{dx}=\frac{1}{x}$

$\frac{dx^n}{dx}=nx^{n-1}$

$\frac{d(u\cdot v)}{dx}=u'v+v'u$

$\frac{dy}{dx}=\frac{x+3+x}{x(x+3)}=\frac{2x+3}{x(x+3)}$

Substitute x=6/5

$m=\frac{dy}{dx}=\frac{\frac{12}{5}+3}{\frac{6}{5}(\frac{6}{5}+3)}=\frac{15}{14}$

$m=\frac{dy}{dx}=\frac{15}{14}$

Slope-point form:

$y-y_1=m(x-x_1)$

$x_1=6/5,y_1=9/10$

By using this formula

The equation of tangent to the given graph

$y-\frac{9}{10}=\frac{15}{14}(x-\frac{6}{5})$

$\frac{10y-9}{10}=\frac{15}{14}(x-\frac{6}{5})$

$140y-126=150x-180$

$150x-140y=180-126=54$

$75x-70y=27$

The equation of tangent to the given graph

$75x-70y=27$

7 0

3 years ago

Solve.

pentagon [3]

Answer:

99/96=66/64

Step-by-step explanation:

If the triangles are similar dividing the altitude by the base of both triangles should give you the same answer, if they don't they are not similar,

99/96= 1.03125

66/64= 1.03125

So the triangles are indeed similar.

3 0

3 years ago

Read 2 more answers

Find the area of a triangle which has a base of 22cm and a height of 16cm

ra1l [238]

The area of the triangle will176 because 22×16 you will 352 s you just need to divide that by two and you get 176 so you your total area for the triangle is 176 and don’t forget put as square

6 0

3 years ago

The table below shows all outcomes for rolling 2 dice. The bold numbers 1 through 6 show the possible results for each die. All

Leokris [45]

Part I:

1. If you have to circle each outcome in the table that at least 1 die is a 4, then you have to circle row corresponding to the number 4 and column corresponding to the number 4.

2. If you have to cross out each outcome where the sum of the dice is greater than 5, then you have to cross out all not bold numbers 6, 7, 8, 9, 10, 11 and 12 in the table.

Part II:

Here you can see 36 possible outcomes.

1. The probability that at least 1 die is a 4 is:

$Pr(A)=\dfrac{11}{36}$ - (favorable outcomes are 4+1=5, 4+2=6, 4+3=7, 4+4=8, 4+5=9, 4+6=10, 1+4=5, 2+4=6, 3+4=7, 5+4=9, 6+4=10).