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3 years ago

.y = 2x - 3; x = - 4how do you do this?

Mathematics

1 answer:

Svetach [21]3 years ago

8 0

y = 2(-4) - 3

y = -8 - 3

y = -11

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What is the answer for this question? 6x^2 - 35x + 49 ( factorising quadratics btw)

tino4ka555 [31]

Answer:

x=7/2 x=7/3

Step-by-step explanation:

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3 years ago

If x > 0, which of the following is positive? 1. -x 2. x^2 3. (-x)^3 4. 1/-x

lapo4ka [179]

Answer:

$x^2$

Step-by-step explanation:

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1 year ago

At a candy store you can pay $16.10 for 7 giant lollipop what would be the cost for 6 lollipops?

Alex Ar [27]

Answer: $13.80 for 6 giant lollipops

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Unit price means the cost per unit,

in this case, the cost per giant lollipop.

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for 1 giant lollipop, we need to 16.10 by 7.

16.10 divided by 7 is 2.3.

This means that each lollipop is $2.30.

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the cost per 1 lollipop by 6.

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3 years ago

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vovangra [49]

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3 years ago

∫c x sin y ds, C is the line segment from (0, 1) to (3, 5)

Mnenie [13.5K]

Parameterize the line segment $C$ by

$\mathbf r(t)=\langle x(t),y(t)\rangle=(1-t)\langle0,1\rangle+t\langle3,5\rangle=\langle3t,1+4t\rangle$

where $t\in[0,1]$ . Then

$\mathrm ds=\|\mathbf r'(t)\|\,\mathrm dt$
$\mathrm ds=\|\langle3,4\rangle\|\,\mathrm dt$
$\mathrm ds=5\,\mathrm dt$

So the integral is

$\displaystyle\int_Cx\sin y\,\mathrm ds=5\int_0^1x(t)\sin y(t)\,\mathrm dt$
$=\displaystyle5\int_0^13t\sin(1+4t)\,\mathrm dt$
$=\dfrac{15}{16}(\sin5-\sin-4\cos5)\approx-2.7516$

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3 years ago

.y = 2x - 3; x = - 4how do you do this?​

.y = 2x - 3; x = - 4how do you do this?