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Scilla [17]
3 years ago
10

Use this picture to solve for X

Mathematics
1 answer:
Zepler [3.9K]3 years ago
8 0

Answer:

x=2

Step-by-step explanation:

i would set up a system of equation using the pythagorean theorem:

1^2+x^2=z^2

4^2+x^2=y^2

Add up these equations to get:

17+2x^2=y^2+z^2

But notice that

y^2+z^2=5^2

So you can substitute

17+2x^2=25

2x^2=8

x^2=4

x=2

:)

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What is the answer ​
mrs_skeptik [129]

Answer:

10.56825

Step-by-step explanation:

solution:

4.95×2=9.9

9.9×6.75%=0.66825

0.66825+9.9=10.56825

7 0
3 years ago
What is the surface area of a sphere with a radius of 20 m?
navik [9.2K]
SA=4pir^2
r=20m
SA=4pi20^2
SA=4pi400
SA=1600pi m^2
8 0
3 years ago
Read 2 more answers
Can someone help with this math question please
Alex73 [517]
Question 9

For this question, you work out the areas of the different shapes - the two triangles and the large rectangle.
------------------------------------------------------------------------------------------------------------
To get the area of the rectangle, you must use a ruler to measure out the:
 height of the shape and the base of the shape

(try to be as accurate as possible when measuring)

Then to get the area of the rectangle, multiply the Height by the Base. 
-------------------------------------------------------------------------------------------------------------

For the triangles, you measure the out the base and the height .
Then you use the formula for the area of a triangle, which is:

Height x Base x \frac{1}{2}

So, you measure out the base and height of one triangle, then use the formula to work out the area,    then you do the same for the second triangle.
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Finally, you add up all of the areas:

Total area = area of rectangle + area of first triangle +area of second triangle

then you choose the option that is closest to your answer <span>(remember to be accurate with the ruler!)
</span>-------------------------------------------------------------------------------------------------------------

Question 10<span>

</span>Lets say we wanted to know how much 10 bottles of water cost

To do this, we would multiply the number of water bottles we want (which is 10)  by how much one water bottle costs.<span>

</span>Lets say one water bottle costs £1.  
We would multiply the £2   by 10 (which is the number of water bottles)

So 10 water bottles would cost :   £2 x 10 = <span>£20
</span>
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Now lets apply this knowledge to the question:

The <u>ANSWER </u>would be:
G) multiplying n by the cost of one bottle

To get the total total cost, we multiply the number of bottles we buy by the cost of one bottle
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Question 11

For this one, we are told that the company charges $40 for hooking a vehicle.
We are also told that they charge $1.70 for each mile  the vehicle is towed.

Therefore the <u>ANSWER </u>would be;

B) 
c = 40 + 1.70m

$1.70m   means   $1.70   times the number of miles, and we are told that they charge 1.70 for every mile.  



8 0
3 years ago
Help me on this question pls!
dezoksy [38]

Answer:

The final answer is 15.

Step-by-step explanation:

Lemons in the bags

\frac{30}{3}  = 10 \: per \: bag

Pedals = 1 each

Jars = 5

Once you know the value of the lemons in the bag, you will know the rest.

I hope this helps, and as always, I am joyous to assist anyone at any time.

7 0
3 years ago
Read 2 more answers
Sammy has x flavors of candies with which to make goody bags for Frank's birthday party. Sammy tosses out y flavors, because he
harkovskaia [24]

Answer:

^{(x-y)}C_{10}=\frac{(x-y)!}{10! \times (x-y-10)!}

Step-by-step explanation:

Total flavors Sammy initially had = x

Number of flavors Sammy throw away = y

After throwing away y flavors, the number of flavors Sammy will be left with = x - y

He needs to make 10-flavor bags from these (x - y) flavors. In order words he needs to chose 10 flavors for each bag from(x - y) flavors. The order of selection is not important here, so this is a problem of combinations. Also since we have to make selections or small groups, this also indicates that we have to use combinations.

So we need to make combinations of 10 flavors from a total of (x - y) flavors. This can be represented as ^{(x-y)}C_{10}

The formula for combinations is:

^{n}C_{r}=\frac{n!}{r!(n-r)!}

Using the values in this formula, we get:

^{(x-y)}C_{10}=\frac{(x-y)!}{10! \times (x-y-10)!}

7 0
3 years ago
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