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noname [10]
4 years ago
11

Hey guys can you answer this please because I badly need it right now please

Mathematics
1 answer:
brilliants [131]4 years ago
7 0

Answer:

1 . yes 2 . no 3. no

Step-by-step explanation:

Hope it helps .

You might be interested in
A rectangular box with no top (pictured above) is to contain 2250 cubic inches of volume. Find the dimensions of the box that wi
I am Lyosha [343]

Answer:

Height = 7.5 inches

Width = 10 inches

Length = 30 inches

Step-by-step explanation:

Volume of the shape (V) = length (l) * width (w) * height (h)

From the question, the length = 3w

So, V = 3w * w * h

V = 3w²h

h = V/3w²

h = 2250/3w²

Therefore h=V/(3w^2) where V is the volume.

Considering the fact that the top of the rectangular box is missing

The Surface Area (S) = (l*w) + 2(l*h) + 2(w*h) --------------------- (replace l with 3w and h with 2250/3w²)

S = 3w*w + 2(3w)(2250/3w²) + 2w(2250/3w²)

S = 3w² + 4500/w² + 1500/w

S = 3w² + 6000/w

We need to find the minimum of the above function (equation) by finding its first derivative with respect to A

Differentiating the above function, we have

0 = 6w - 6000/w²

6000/w² = 6w

6000 = 6w³ ------------ Divide through by 6

1000 = w³ ---------------- Find the cube root of both sides

10 = w

w = 10

Hence, width of the rectangular box is 10 inches

To solve height, we use

h = 2250/3w²

So, h = 2250/(3*10²)

h = 2250/300

h = 7.5 inches

To find the length, we use

l = 3w

So, l = 3 * 10

l = 30 inches

8 0
3 years ago
Tickets for a concert cost 18 dollars each. If you had 3450 dollars, how many tickets could you buy
FrozenT [24]

Answer:

191 tickets

Step-by-step explanation:

3450$ divided by 18 = 191.66666667.

you can buy .66666667 tickets, so you round down to 191 and theres your answer :)

5 0
2 years ago
Read 2 more answers
(100) points!!!! Help please
inysia [295]

Answer:

\displaystyle a_8=142,11\ mg

Step-by-step explanation:

Geometric sequence

Each term in a geometric sequence can be computed as the previous term by a constant number called the common ratio. The formula to get the term n is

\displaystyle a_n=a_1r^{n-1}

where a_1 is the first term of the sequence

The problem describes Georgie took 275 mg of the medicine for her cold in the first hour and that in each subsequent hour, the amount of medicine in her body is 91% (0.91) of the amount from the previous hour. It can be written as

amount in hour n = amount in hour n-1 * 0.91

a)

This information provides the necessary data to write the general term as

\displaystyle a_n=275\ .\ 0.91^{n-1}

b)

In the 8th hour (n=8), the remaining medicine present is Georgie's body is

\displaystyle a_n=275\ .\ 0.91^{8-1}

\displaystyle a_n=275\ .\ 0.91^{7}

\boxed{\displaystyle a_8=142,11\ mg}

6 0
3 years ago
Pls anwer this qestion it is worth 30 points
Sveta_85 [38]

Answer:

49

Step-by-step explanation:

25b² + 70b + ....

( 5b + 7)² = 5×5b² + 2×5×7b + 7×7 = 25b² + 70b + 49

6 0
3 years ago
5. WHAT IS THE SALE PRICE OF THIS BAG IF IT IS MARKED PHP<br>2735 WITH 33% DISCOUNT?<br>​
Alex777 [14]

Answer:

1832.45

Step-by-step explanation:

2735 - 33% = 1832.45

8 0
3 years ago
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