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Kitty [74]
3 years ago
13

Simplify the equation _3(_7x_5)

Mathematics
1 answer:
jek_recluse [69]3 years ago
5 0
21X_15 :-)   :-) :-)!!!!! There you go!
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How many more students studied for at least 3 hours compared to students who studied
Tatiana [17]

Answer:

5 students

Step-by-step explanation:

9 students studied for more than 3 and 4 students studied less .

9-4=5

4 0
3 years ago
Stock A changed by - $2,60 during the day. Stock B changed by 3
Slav-nsk [51]

Answer:

$7.80

Step-by-step explanation:

$2.60 * 3 = $7.80

5 0
3 years ago
How many ways can Rudy choose 4 pizza toppings from a menu of 14 toppings if each topping can only be chosen once
madam [21]

Answer:

24,024

Step-by-step explanation:

Calculation for How many ways can Rudy choose 4 pizza toppings from a menu of 14 toppings

The 4 pizza toppings from a menu of 14 toppings will be 14,13,12,11

Hence,

14*13*12*11=24,024

Therefore the numbers of way Rudy can choose 4 pizza toppings from a menu of 14 is 24,024

6 0
3 years ago
In three separate stock trades Dale los $560, gained $850, and lost $280. What was the net result of the three trades?
romanna [79]

Answer:

$10 profit

Step-by-step explanation:

560+280=840

850-840=10

5 0
3 years ago
A helicopter hovers at an altitude that is 1000 feet above a mountain of altitude 5210 feet. A second, taller peak is viewed fro
ehidna [41]
Given: 

Height of Mountain A = 5210 feet
Distance of Mountain A from a helicopter above the peak = 1000 feet
Angle of depression:
       Mountain B to helicopter = 43 degrees
       Mountain B to Mountain A = 19 degrees
 
 First, draw an illustration and label the enumerated given values.

Observe that there are two right triangles formed:

From the triangle formed by the helicopter and Mountain B, 

let x = total height of mountain B
     y = leg of first triangle (helicopter and mountain b)
     h = hypotenuse
Use the Pythagorean Theorem:

cos (43) = y / h

From the second triangle formed by mountain b and a,

cos (19) = (1000 + y) / h

solve for h and y

then, solve for the height of Mountain B:

x = 1000 + y + 5210
6 0
3 years ago
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