2 years ago

Use compatibale numbers to find two estimates for 478 divided by 2

Mathematics

1 answer:

iogann1982 [59]2 years ago

4 0

Hi on this question I got 239

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Solve this equation 5x+17= 42

sergey [27]

Answer:

x = 5

Step-by-step explanation:

5x + 17 = 42

5x = 25

x = 5

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2 years ago

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Find equations of both the tangent lines to the ellipse x^2 + 4y^2 = 36 that pass through the point (12, 3).y = (smaller slope)y

Bingel [31]

Answer:

x+y=15

Step-by-step explanation:

Given equation of $x^2+4y^2=36$

Differentiating both side $2x+8y\frac{dy}{dx}=0$

$\frac{dy}{dx}=\frac{-x}{4y}$

It passes through the point (12,3) so

$\frac{dy}{dx}=\frac{-12}{4\times 3}=1$

So equation of tangent passing through (12,3) is

$y-12=-1(x-3)$ as $y-y_1=-m(x-x_1)$

So x+y =15 will be the equation of tangent which passes though the point (12,3)

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3 years ago

Anju plots points showing equivalent ratios on the coordinate plane below

daser333 [38]

Answer:

Step-by-step explanation:

8 0

2 years ago

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Solve for x. In the equation 9x +1/3= x-13

Xelga [282]

Answer:

Step-by-step explanation:

9x+ $\frac{1}{3}$ =x-13

9x*3+1/3=x-13

27x+1/3=x-13

27x+1=3(x-13)

27x+1=3x-39

27x-3x=-39-1

24x=-40

x=-5/3

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2 years ago

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2.Beth is 6 years younger than<br>twice her brother's age. How old is<br>Beth?

murzikaleks [220]

Beth would be four years old

8 0

3 years ago