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3 years ago

What is the value of x? (Attatched file didn't upload first time for some reason)

Mathematics

1 answer:

STatiana [176]3 years ago

3 0

You can solve using sin45°= $\frac{x}{6}$ . x=4.2426

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For thousand 400 is 10 times as much as 440

ss7ja [257]

440 x 10 = 4,400. Yes 4,400 is 10 times as much as 440

3 0

3 years ago

Read 2 more answers

What is the sum of the measures of interior angles ofna regular polygon if each exterior angle measures 72°?

WARRIOR [948]

We know that

The exterior angle measures of a polygon must add up to 360°,

therefore

360°/72°=5 exterior angles

5 exterior angles, would mean 5 interior angles and therefore 5 sides to the polygon

The exterior angle and the interior angle of any polygon are supplementary and must add up to 180°.

exterior angle+interior angle=180°

interior angle=180°-exterior angle

interior angle=180°−72°-------> 108°
Each interior angle is 108°

The sum of the interior angles would be

5*108°=540°

the answer is

540°

5 0

3 years ago

Find the with of a triangle as a 15 cm high in a hypogynous of a 19 cm

Inessa05 [86]

Answer:

This other side of the triangle is equal to about 11.7 cm

Step-by-step explanation:

In order to find out the third side of the triangle we will just use the Pythagoras Theorem.

$c^{2} =a^{2} + b^{2}$

Since we know the hypotenuse and we know one of the legs, in order to find the second leg we just substitute the values and solve the equation and so we get...

$c^{2} =a^{2} + b^{2}\\19^{2} = 15^{2} + b^{2}\\361 = 225 + b^{2} \\$

$b^{2} = 361 - 225\\b^{2} = 136\\b = \sqrt{136} \\$

And so b ≈ 11.66190

8 0

2 years ago

The expression can be used to predict the height of a plant in days. Where is the rate in centimeters that that plant grows per

Allisa [31]

Answer:

37.5 cm

Step-by-step explanation:

x = days

f(x) = 1.5x + 30

f(5) = 1.5(5) + 30

f(5) = 7.5 + 30

f(5) = 37.5

5 0

3 years ago

Tickets at a particular movie theater have different rates for adults and children. On Friday, the theater sold 4 adult tickets

Thepotemich [5.8K]

Answer: The price for the adult tickets is $12 and the price for the child ticket is $5.

Step-by-step explanation:

Let the price for the adult ticket be x

Let the price for the child ticket be y

According to question, On Friday ,

$4x+7y=83$

and on next day,

$5x+6y=90$

Now, we will use "Substitution Method" to solve the system of equations :

$5x+6y=90\\\\5x=90-6y\\\\x=\frac{90-6y}{5}$

so, we will put the value of x in the first equation i.e.

$4x+7y=83\\\\4(\frac{90-6y}{5})+7y=83\\\\360-24y+35y=83\times 5\\\\35y-24y=415-360\\\\11y=55\\\\y=\frac{55}{11}\\\\y=5$

Now, put the value of y in the equation that is given by

$x=\frac{90-6y}{5}\\\\x=\frac{90-6\times 5}{5}\\\\x=\frac{90-30}{5}\\\\x=\frac{60}{5}\\\\x=\$12$

Hence, the price for the adult tickets is $12 and the price for the child ticket is $5.

4 0

2 years ago