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nevsk [136]
2 years ago
8

HELP ME PLEASE!!! QUESTIONS ARE IN THE IMAGES BELOW!

Mathematics
1 answer:
Len [333]2 years ago
4 0

Answer:

...............................

Step-by-step explanation:

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The diagram shows a part of a regular 10 sided polygon<br> work out the size of the angle marked x
OverLord2011 [107]

Answer:

b

Step-by-step explanation:

b

7 0
2 years ago
Use long division to divide and use the result to factor the dividend completely.
dolphi86 [110]
The answer is:
Factor the expression

3 0
2 years ago
If $x$, $y$, and $z$ are positive integers such that $6xyz+30xy+21xz+2yz+105x+10y+7z=812$, find $x+y+z$.
harina [27]

Answer:

10

Step-by-step explanation:

When we simplify we get $$z(6xy+21x+2y+7)+30xy+105x+10y=812.$$

Then we continue to factor to get: (z+5)(6xy+21x+2y+7)&=847.

We then see that we can factor (6xy+21x+2y+7) into (z+5)(3x+1)(2y+7)&=847.

we then do the prime factorization of 847, which i think is,  7*11*11. we have to find the numbers that multiply to 847 and then plug them into z+5, 3x=1,2y+7.

It has to be a positive, non-negative integer, right?

We also see that 3x+1=11 so we see that x=10/3 (which wont work).

So 3x+1=7, so x=2.

So 11 has to be in another term. It has to be in 2y+7=11 so y=2

for the last term we get z+5=11 so z=6

2+2+6=10

Hope this helps and if you want please consider giving me brainliest. :)

8 0
3 years ago
I need help with dividing fractions
iVinArrow [24]

When you divide fractions, you want to use keep change flip.

You keep the 1st fraction, change the division sign into a multiplication sign, then flip the last fraction.

Let’s use 3/4 ÷ 2/3

Keep 3/4 the same, change the division sign into a multiplication sign, and flip 2/3 so that it is 3/2

It’ll look like this

3/4 x 3/2

Now just multiply the numerators, 2 x 3, then multiply the demoninators, 4 x 2.

You get 6/8

Simplify this number and you get 3/4.

If you have any further questions feel free to ask.

Hope this helps.

5 0
3 years ago
The figure is made of rectangular prisms. What is the volume?
Step2247 [10]

Answer:

<u><em>the answer is 225cm3</em></u>

3 0
3 years ago
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