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3 years ago

10

108+621 is the same as 100+

1 answer:

notsponge [240]3 years ago

5 0

Answer:

108+621= 100+629 hhh grade 2?

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A person gets on a Ferris wheel at the starting point. The starting point is 15 feet off the ground. The Ferris wheel has a radi

lisov135 [29]

<h2>Answer:</h2>

$\boxed{\frac{25}{2}(\sqrt{6}+\sqrt{2})+65}$

<h2>Explanation:</h2>

<em>The height of the rider from the ground after the Ferris wheel</em> equals <em>the starting point is 15 feet off the ground </em><em>plus </em><em>the radius of the Ferris wheel </em><em>plus </em><em>the opposite side of the triangle ΔABC </em>(See figure below).<em> </em>Hence our goal is to find this side. We have the angle $11\pi /2=165^{\circ}$ , therefore the angle ∠BAC = 165° - 90° = 75°. So this side can be found using trigonometry:

$\overline{BC}=\overline{AB}sin(75^{\circ})=50sin(75^{\circ})=\frac{25}{2}(\sqrt{6}+\sqrt{2})$

Finally, the height is:

$H=\frac{25}{2}(\sqrt{6}+\sqrt{2})+15+50 \\ \\ \boxed{H=\frac{25}{2}(\sqrt{6}+\sqrt{2})+65}$

6 0

3 years ago

the low temperature in colton for 5 days were -8 -13 -4 -9 and -16 what was the average low temperature for those 5 days

Andreas93 [3]

The average low temperature is -10.
-8+(-13)+(-4)+(-9)+(-16)= -50/5=-10

3 0

3 years ago

Read 2 more answers

Find sin(a) in the triangle? <br> A.)12/35<br> B.)12/37<br> C.)35/12<br> D.)35/37

Svet_ta [14]

Answer:

12/37

Step-by-step explanation:

sin alpha = opposite side/ hypotenuse

sin alpha = 12/37

8 0

3 years ago

The price of a video game increases by 20%, then decreases by 10%. If the final price is $46.98,

Elena-2011 [213]

Answer:

The original price was $43.50

Step-by-step explanation:

Let

x ----> the original price of a video game

we know that

1) The price of a video game increases by 20%

so

$100\%+20\%=120\%=120/100=1.20$

The final price is equal to the original price multiplied by 1.20

so

$1.20x$

2) The price of a video game decreases by 10%

so

$100\%-10\%=90\%=90/100=0.90$

The final price is equal to the price at this moment multiplied by 0.90

so

$0.90(1.20x)=1.08x$

we have that

$1.08x=46.98$

solve for x

$x=46.98/1.08\\x=\$43.50$

4 0

3 years ago

-4(1-x)+x<-(4-2x)+4 i need an interval notation answer on this please

alex41 [277]

Answer:

x<4/3

<- - - - - - - - ○ -------------->

0 4/3

Step-by-step explanation:

and do you want a step by step

7 0

4 years ago