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Mama L [17]
4 years ago
11

What is the following sum? 4sqrt5+2sqrt5

Mathematics
1 answer:
Anna71 [15]4 years ago
7 0

Answer:

4\sqrt{5} +2\sqrt{5}\\= 6\sqrt{5}

Step-by-step explanation:

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Which of the following systems is represented by the graph?
gulaghasi [49]

Answer:

Red

Step-by-step explanation:

3 0
3 years ago
A light shines from the top of a pole 50ft high. a ball is dropped from the same height from a point 30 ft away from the light.
belka [17]
The speed of the ball is 
ds/dt = 32t
At t =1/2 s
ds/dt = 16 ft/s
The distance from the ground
50 - 16(1/2)^2 = 46 ft
The triangles formed are similar
50/46 = (30 + x)/x
x = 345 ft

50 / (50 - s) = (30 + x)/x
Taking the derivative and substituing
ds/dt = 16
and
Solve for dx/dt
7 0
3 years ago
Rachel works at a bookstore. On Tuesday, she sold twice as many books as she did on Monday. On Wednesday, she sold 6 fewer books
cricket20 [7]
M + t + w = 19
t = 2m
w = t - 6....w = 2m - 6

m + (2m) + (2m - 6) = 19
5m - 6 = 19
5m = 19 + 6
5m = 25
m = 25/5
m = 5 <===Monday

t = 2m
t = 2(5)
t = 10 ... Tuesday

w = 2m - 6
w = 2(5) - 6
w = 10 - 6
w = 4 .... Wednesday
4 0
3 years ago
||
kherson [118]

\sf{\qquad\qquad\huge\underline{{\sf Answer}}}

Here we go ~

  • take value of pi = 3

  • r = radius = 5 cm

  • h = height = 9 cm

Let's calculate volume of Cylinder ~

\qquad \sf  \dashrightarrow \:v =  \pi {r}^{2} h

\qquad \sf  \dashrightarrow \:v = 3 \times  {5}^{2}  \times 9

\qquad \sf  \dashrightarrow \:v =  3\times25 \times 9

\qquad \sf  \dashrightarrow \:v = 75 \times 9

\qquad \sf  \dashrightarrow \:v =67 5 \:  \: cm {}^{3}

That's all, ask me if you have any queries ~

7 0
2 years ago
Jonathon is starting a new job where he will earn $100 per week plus 15% commission on all sales. Write an equation and solve it
Lelechka [254]
(380-100).15(+280)
first to find the commission you have to subtract the guaranteed payment, and then to find  commission multiply by .15, subtract that number from 280 (sales without commission) (280 from 380-100) and that is the amount he made from sales (answer: 322 from sales)
5 0
4 years ago
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