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olganol [36]
4 years ago
11

Expand and simplify (2x2 + 3)(4x + 5) - 8x(x - 2)

Mathematics
1 answer:
Bezzdna [24]4 years ago
4 0
I think the answer is 2x+12
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What is the circumference of the circle? Use 3.14 for pi<br>d= 33 cm<br>​
dangina [55]

Answer:

C = 103.62 CM

Step-by-step explanation:

C = Pi*D

C =(3.14)*(33)

C = 103.62 cm

Best regards

5 0
3 years ago
Read 2 more answers
a silkworm winds its cocoon out of one long silk fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their
Scorpion4ik [409]

Answer:

Possible lengths of the silk fibre 'x' are 100, 75, 60, 50 and 30 yards respectively.

Step-by-step explanation:

Let the length of the silk fiber = x yards.

Let the number of silk fibres = a.

It is given that the silk fibers between 3 to 10 yards are combined to form a silk thread of 300 yards.

So, we get the equation,

ax=300, where 3\leq a\leq 10

i.e. x=\frac{300}{a}, 3\leq a\leq 10

So, the possible values of 'a' are 3, 4, 5, 6 an 10.

Thus, the possible lengths of the silk fibre 'x' are 100, 75, 60, 50 and 30 yards respectively.

3 0
3 years ago
Simplify the expression:<br> -3(6 - 1.5n)=
Tatiana [17]

Answer:

Step-by-step explanation:

Use distributive property: a*(b +c) =a*b + a*c

-3( 6 - 1.5n) = (-3)*6 - (-3)*1.5n

                  = -18 + 4.5n

3 0
3 years ago
Read 2 more answers
A rectangles side is 7.6 cm. the bottom of the rectangle is 11cm. what is the area?​
DaniilM [7]

Answer:

83.6 cm

Step-by-step explanation:

Area = width x length

so 7.6 x 11

which is 83.6

Therefore, the area of the rectangle is 83.6 cm

hope this helps, give brainliest?

5 0
3 years ago
Read 2 more answers
Help pls , will give brainliest!
m_a_m_a [10]
<h3>Answer:  6</h3>

=======================================

Work Shown:

1 liter = 1000 mL

3 liters = 3000 mL

I multiplied both sides by 3.

Divide that result over 500 to get 3000/500 = 6

So she'll need to buy 6 cartons.

-------

You could also solve like this:

(1 carton)/(500 mL) = (x cartons)/(3000 mL)

1/500 = x/3000

1*3000 = 500*x ... cross multiply

3000 = 500x

500x = 3000

x = 3000/500 .... dividing both sides by 500

x = 6

6 0
3 years ago
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