Which expression is equivalent to -5(1+7x)+3(3+4x)

Mathematics

1 answer:

Sedbober [7]3 years ago

6 0

Answer:

0(2+14x)+6(6+8x)

Step-by-step explanation:

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The sum of the interior angles of a triangle is 180 the second angle of a triangle is 45 more than the first and the third angle

vfiekz [6]

First angle is x
x + (x + 45) + 2x = 180
4x + 45 = 180
4x = 180 - 45 = 135
x = 135 divided by 4
x = 33.75
first angle 33.75
second angle 78.75
third angle 67.5
checking
33.75 + 78.75 + 67.5 = 180

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3 years ago

Find x and y please

Alexandra [31]

Answer:

Answer:

x → 4.24
y → 4.24

Step-by-step explanation:

» x and y can only be got through using trigonometric ratios:

✍ For x :

${ \tt{ \sin( \theta) = \frac{opposite}{hypotenuse} }} \\ \\ { \tt{ \sin(45 \degree) = \frac{x}{6} }} \\ \\ { \tt{x = 6 \times \sin(45 \degree) }} \\ { \tt{x = 4.24}}$

✍ For y :

${ \tt{ \cos( \theta) = \frac{adjacent}{hypotenuse} }} \\ \\ { \tt{ \cos( 45 \degree) = \frac{y}{6} }} \\ \\ { \tt{y = 6 \times \cos(45 \degree) }} \\ { \tt{y = 4.24}}$

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3 years ago

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The maximum weight allowed per car on The Twister carnival ride is 263 pounds. Your friend weighs 86 pounds. To be able to ride

Kazeer [188]

Your weight: x lb
Friend's wt.: 86 lb
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Then x + 86 ≤ 263, with x in lb. You could weigh a max. of 177 lb and still be able to go on this ride.

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The equation used above is y-intercept form.

ex. y = mx + b

Whatever is in front of the x is your slope.

Your slope is -3

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