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SSSSS [86.1K]
3 years ago
15

Frank is going to plant y vegetable seeds in one garden and 2y + 10 vegetable seeds in another.

Mathematics
1 answer:
Sholpan [36]3 years ago
3 0

Answer:

3y + 10

Step-by-step explanation:

The total number of seeds Frank will plant in both gardens all together would be:

y + 2y + 10

Add like terms together to simplify the expression

3y + 10

Frank is going to plant 3y + 10 seeds

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Tom throws a ball into the air.
hram777 [196]
<span>h = -8t² + 40t

dh/dt = 0
⇒ d/dt(</span><span>-8t² + 40t) = 0
⇒ -16t + 40 = 0
⇒ 16t = 40
⇒ t = 40/16 = 2.5s

So it takes 2.5 seconds to reach highest point

h = -8×2.5² + 40×2.5 = -50 + 100 = 50
Ordered pair: (h,t) = (50,2.5)
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6 0
3 years ago
Solve each system using elimination. 3x+3y=27 x-3y=-11
Natalija [7]

Answer:

x=4

y=10

Step-by-step explanation:

3x +3y = 27

x - 3y = -11 (add these up so 3y will be eliminated and you'll have x only)

4x = 16

now let's eliminate x (you can put 4 instead of x though)

3x + 3y = 27

-3/ x -3y= -11 (multiple the the 2nd equation with -3 to eliminate x )

3x + 3y =27

-3x + 3y =33

6y = 60

8 0
4 years ago
14^2 what is the names of the big number (14) and the superscript number (2).<br> A.=<br><br> B=
Artemon [7]
A. Positive integer base 14
B. Exponent number 2
7 0
4 years ago
Một lô hàng chứa rất nhiều sản phẩm, trong đó tỷ lệ sản phẩm loại tốt là 70%. chọn ngẫu nhiên từ lô hàng ra 5 sản phẩm. gọi X là
den301095 [7]

trả lời : lâp bảng

X=0 thì xác suất lấy ra được sản phẩm tốt là 5*30%=1,5%

X =1 thì xác suất lấy ra được là 1* 70%*4*30%=0,84%

X=2 thì xác suất lấy ra được sản phẩm tốt là 2*70%*3*30%=1,26%

X=3 thì xác suất lấy ra được sản phẩm tốt là 3*70%*2*30%=1,26%

X=4 thì xác suất lấy ra được sản phẩm tốt là 4*70%*1*30%=0,84%

X=5 thì xác suất lấy ra được sản phẩm tốt là 5*70%=3,5%

X 0 1 2 3 4 5

P 1,5 0,84 1,26 1,26 0,84 3,5

b,

E(x)= 1,5*0+ 0,84*1+1,26*2+1,26*3+0,84*4+3,5*5=28

E(x^2)=1,5*0^2+0,84*1^2+1,26*2^2+1,26*3^2+0,84*4^2+3,5*5^2=118,16

===> V(x)= (E(x))^2-E(x^2)=28^2-118,16=665,84

8 0
3 years ago
A diagonal cross section of a sphere produces which two-dimensional shape?
const2013 [10]

<span>A diagonal cross section of a sphere produces a circle.

Regardless of how the sphere is cut, it will form a circle.

</span>

<span>Thank you for posting your question. I hope you found what you were after. Please feel free to ask me more</span>

4 0
3 years ago
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