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3 years ago

Estimate each percent 59% of 16

Mathematics

2 answers:

Goshia [24]3 years ago

7 0

16 x 59%
16 x 0.59
=9.44

lana [24]3 years ago

3 0

16*.59=9.44 Does that answer your question?

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Find and interpret the slope and y-intercept of y=40x+30

rjkz [21]

The slope is 40 and the y-intercept is 30. Umm... What exactly are you asking for? I'm a bit confused about this question.

3 0

3 years ago

(a) Find the equation of the normal to the hyperbola x = 4t, y = 4/t at the point (8,2).

gtnhenbr [62]

The slope of the tangent line to the curve at (8, 2) is given by the derivative $\frac{dy}{dx}$ at that point. By the chain rule,

$\dfrac{dy}{dx} = \dfrac{dy}{dt} \times \dfrac{dt}{dx} = \dfrac{\frac{dy}{dt}}{\frac{dx}{dt}}$

Differentiate the given parametric equations with respect to $t$ :

$x = 4t \implies \dfrac{dx}{dt} = 4$

$y = \dfrac4t \implies \dfrac{dy}{dt} = -\dfrac4{t^2}$

Then

$\dfrac{dy}{dx} = \dfrac{-\frac4{t^2}}4 = -\dfrac1{t^2}$

We have $x=8$ and $y=2$ when $t=2$ , so the slope at the given point is $\frac{dy}{dx} = -\frac14$ .

The normal line to the same point is perpendicular to the tangent line, so its slope is +4. Then using the point-slope formula for a line, the normal line has equation

$y - 2 = 4 (x - 8) \implies \boxed{y = 4x - 30}$

Alternatively, we can eliminate the parameter and express $y$ explicitly in terms of $x$ :

$x = 4t \implies t = \dfrac x4 \implies y = \dfrac4t = \dfrac4{\frac x4} = \dfrac{16}x$

Then the slope of the tangent line is

$\dfrac{dy}{dx} = -\dfrac{16}{x^2}$

At $x = 8$ , the slope is again $-\frac{16}{64}=-\frac14$ , so the normal has slope +4, and so on.

5 0

2 years ago

What is the surface are of the right square pyramid?

Semmy [17]

Answer:

The answer is C.

Step-by-step explanation:

The answer is C. because if you multiply 6 and 4 you get 24 and if you multiply 24 with the other 4 you get 96.

4 0

3 years ago

Read 2 more answers

Camila ubicó 90 botellas en una estantería de un supermercado y de ellas eran de jugo sin azúcar.Si los jugos sin azúcar tienen

Tom [10]

Camila puso 30 botellas de cada sabor en la estantería.

Dado que Camila ubicó 90 botellas en una estantería de un supermercado, y los jugos sin azúcar tienen tres sabores diferentes y Camila puso la misma cantidad de cada sabor en la estantería, para determinar la cantidad de botellas de jugo sin azúcar de cada sabor que puso Camila en la estantería se debe realizar el siguiente cálculo:

90/3 = X
30 = X

Por lo tanto, Camila puso 30 botellas de cada sabor en la estantería.

Aprende más en brainly.com/question/16991787

3 0

2 years ago

What's the answer to this

olya-2409 [2.1K]

Answer:

125

Step-by-step explanation:

Use your Equation: A= B*H (base x height)

7.8(16)= 124.8

Rounded to the nearest whole number: 125

4 0

3 years ago

Read 2 more answers