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Crazy boy [7]
3 years ago
6

9+10 I need help please

Mathematics
2 answers:
Ludmilka [50]3 years ago
7 0

Answer:

19

Step-by-step explanation:

Hope this helps you!

cricket20 [7]3 years ago
3 0

Answer:20

Step-by-step explanation:

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Boating across a river, the current moves you downstream. Instead of going directly across the river, the boat moves at a 25 deg
solong [7]
If it's described as my drawing:

The distance of downstream will be 375 * tan25 = 174.87 feet

7 0
3 years ago
Ella is a landscape photographer. One weekend at her art gallery she sells a total of 52 prints for a total of $2,975. How many
abruzzese [7]

Answer:

Ella sold the each print for the cost of $57.21.

Step-by-step explanation:

The total number of prints sold at gallery = 52

Total amount it is sold for = $2,975

Noe, If 52 prints are sold for $2,975.

⇒\textrm{Cost of 1 print} =  \frac{\textrm{Total cost of 52 prints}}{\textrm{52}}

= \frac{2,975}{52}  = 57.21

or, Cost of 1 print = $57.21

So, Ella sold the each print for the cost of $57.21.

4 0
2 years ago
Which expressions<br> are equivalent to 90¹⁶
tangare [24]

Answer:

-30(3+2w)

 (-9-6w) ⋅ 10

 −20(4.5 + 3w)

Step-by-step explanation:

4 0
3 years ago
five hotdogs cost $1.80.Each hotdog cost the same amount.What is the cost per hotdog in dollars and cents
earnstyle [38]

Answer:

$0.36

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Consider the following problem: a box with an open top is to be constructed from a square piece of cardboard, 3 feet wide, by cu
Alecsey [184]

Answer:

) See annex

b) See annex

x  =  0,5 ft

y =  2 ft   and

V = 2 ft³

Step-by-step explanation:  See annex

c) V = y*y*x

d-1) y = 3 - 2x

d-2) V = (3-2x)* ( 3-2x)* x   ⇒ V = (3-2x)²*x    

V(x) =( 9 + 4x² - 12x )*x    ⇒   V(x) = 9x + 4x³ - 12x²

Taking derivatives

V¨(x) = 9 + 12x² - 24x

V¨(x) = 0              ⇒   12x² -24x +9 = 0     ⇒  4x² - 8x + 3 = 0

Solving for x (second degree equation)

x =[ -b ± √b²- 4ac ] / 2a

we get    x₁  =  1,5       and    x₂ =  0,5

We look at y = 3 - 2x    and see that the value x₂ is the only valid root

then

x  =  0,5 ft

y =    2 ft   and

V = 0,5*2*2

V = 2 ft³

7 0
2 years ago
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