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3 years ago

What is the solution to the equation 2(x-10) + 4= -6x + 2

Mathematics

1 answer:

Leno4ka [110]3 years ago

7 0

Answer:

2(x-10)+4=-6x+2

2x-20+4= -6x+2

2x-16=-6x+2

2x+6x=2+16

8x=18

x=18/8

x=9/4

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Question mark 1: Match the triangle to correct function and answer

postnew [5]

Answer:

Triangle 1 - $m\angle A = 58^{\circ}$ , hypotenuse = 16

$x \approx 8.479$

Triangle 2 - $m \angle A = 44^{\circ}$ , adjacent leg = 18

$x \approx 17.382$

Triangle 3 - $m\angle A = 49^{\circ}$ , opposite leg = 12

$x \approx 15.900$

Step-by-step explanation:

Each triangle is solved by means of trigonometric relations:

Triangle 1 - $m\angle A = 58^{\circ}$ , hypotenuse = 16

$\cos 58^{\circ} = \frac{x}{16}$

$x = 16\cdot \cos 58^{\circ}$

$x \approx 8.479$

Triangle 2 - $m \angle A = 44^{\circ}$ , adjacent leg = 18

$\tan 44^{\circ} = \frac{x}{18}$

$x = 18\cdot \tan 44^{\circ}$

$x \approx 17.382$

Triangle 3 - $m\angle A = 49^{\circ}$ , opposite leg = 12

$\sin 49^{\circ} = \frac{12}{x}$

$x = \frac{12}{\sin 49^{\circ}}$

$x \approx 15.900$

8 0

3 years ago

George drove 240 miles to his grandmother's house. The graph below shows the relationship between the distance he traveled and t

Igoryamba

Answer:

I think it's A

Step-by-step explanation:

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4 years ago

PLEASE HELP!! I'LL GIVE BRAINLEST!!

guapka [62]

P = 2(12.9) + 2(19.3)
P = 25.8 + 38.6
P = 64.4

4 0

3 years ago

PLEASE ANSWER ASAP FOR BRAINLIEST!!! A triangle has side lengths of 17 cm and 8 cm. Which could be the value of the third side,

denis23 [38]

Answer:

Step-by-step explanation:

The sum of any two sides of a triangle has to be greater than the other side

Only 23 meets this criteria

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3 years ago

Read 2 more answers

Marie scored 95,86 and 89 on three science tests she wants her average score for 6 test to be at least 90 what inequality can yo

galina1969 [7]

(3s + 270) / 6 > 90

s = 90; lowest average score

95+86+89 = 270

(3s + 270) / 6 > 90
 * 6 * 6
3s + 270 > 540
 - 270 -270
3s > 270
÷3 ÷3
s > 90

To check:

(3s + 270)/6 > 90
(3(90) + 270)/6 > 90
(270 + 270)/6 > 90
540 / 6 > 90
90 > 90

8 0

3 years ago