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zheka24 [161]
3 years ago
6

Can someone please help me?

Mathematics
1 answer:
HACTEHA [7]3 years ago
7 0

Answer:

Step-by-step explanation:

1. volum of half cylinder + volume of the prism= (4.5*4.5*314)/2 + 9*11*6 = 31.7925 * 594 = 625.792

2. are or base (hex) * height =height* perimete* apothem /2 = 5*(8*6*6.9)/2 = 828

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What is the difference? x+5/x+2-x+1/x2+2x
Mrac [35]

Question

x+5/x+2 - x+1/x²+2x

Answer:

= (x² - 4x - 1)/[x (x+2)]

= (x² - 4x - 1)/[x² + 2x]

Step-by-step explanation:

x + 5/x + 2 - x + 1/x² + 2x

We factorise the second denominator to give us :

x + 5/x + 2 - x + 1/x(x + 2)

We find the L.C.M of both denominators which is x(x+2).

[x(x + 5)-(x + 1)] / (x (x + 2))

Expand the bracket

=[x² +5x - x -1] / [x (x + 2)]

=(x² - 4x - 1) / [x (x + 2)]

= (x² - 4x - 1)/ [x (x + 2)]

= (x² - 4x - 1) / [x² + 2x]

6 0
3 years ago
Wha rid the value of n very confused and need help
Slav-nsk [51]

Answer:

n = 6

Step-by-step explanation:

Two intersecting chords. The product of the parts of one chord is equal to the product of the parts of the other chord, that is

7(n + 4) = 5(n + 8) ← distribute parenthesis on both sides

7n + 28 = 5n + 40 ( subtract 5n from both sides )

2n + 28 = 40 ( subtract 28 from both sides )

2n = 12 ( divide both sides by 2 )

n = 6

7 0
2 years ago
If m angle B=m angle D=41, find m angle C so that quadrilateral ABCD is a parallelogram
Charra [1.4K]

ANSWER

139°

EXPLANATION

One of the interior angle properties of a parallelogram is that adjacent interior angles are supplementary.

This means that, the adjacent interior angles add up to 180°.

If

m \angle \: B = m \angle \: D = 41

Then

m \angle \: C +  m \angle \: D = 180 \degree

OR

m \angle \: B +  m \angle \:C= 180 \degree

\implies41 \degree +  m \angle \:C= 180 \degree

\implies m\angle \:C= 180 \degree - 41 \degree  = 139 \degree

8 0
3 years ago
Read 2 more answers
One bag of rice that weighs 4.5 pounds will have enough rice if a recipe calls for 60 ounces of rice. (1 pound = 16 ounces)
krek1111 [17]

the bag of rice weighs 4.5 pounds


Multiply 4.5 with 16 oz (as 1 lb = 16 oz)


4.5 x 16 = 72.


The bag of rice has 72 oz of rice inside.


The recipe only needs 60 oz of rice ∴ True, you will have enough, with 12 oz left over.



hope this helps

8 0
3 years ago
What is the surface area of the square pyramid? <br><br> The surface area is ____ yd2.
lana [24]

Base Surface Area = 22

=  4 yards^2

Lateral Surface Area =  

2×2√(2/2)^2 + 3^2

2

=  12.649110640674 yards^2

Total Surface Area = 16.649110640674 yards^2

Your Answer: 16.60 rounded to the nearest tenth.

7 0
3 years ago
Read 2 more answers
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