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Harlamova29_29 [7]
3 years ago
8

Simplify cos2x tan2(-x)-1 / cos2x

Mathematics
1 answer:
PtichkaEL [24]3 years ago
6 0
-x sec(2) sin (2)cos(2x)-sec(2x)
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5. A fruit concentrate is sold in 250 mL packs. The instructions are 'Add water to make one litre of ready-to-drink fruit juice'
Ierofanga [76]
Given ,

Concentrate= 250 mL

Water = 1 liter = 1000 mL

A) ratio is 250:1000 = 1:4

B) for 250 mL it is 1 liter now for 2000mL it is X .

=> x = 2000/250 = 8 liters

C) volume of water in 6L of made up juice is 1500 mL

D) 1 liter - 5 glasses

For 80 glasses it would be 80/5 = 16 glasses
4 0
2 years ago
A shipping container will be used to transport several 140-kilogram crates across the
velikii [3]

Answer:

91.42 crates

Step-by-step explanation:

Let

Greatest Number of 140kg crates = x

weight of crate = 140-kilogram

Weight of other shipment = 13200 kilograms

greatest weight of container = 26000 kilograms

Weight of other shipment + (weight of crate * number of crates) ≤ greatest weight of container

13,200 + 140x ≤ 26,000

140x ≤ 26,000 - 13,200

140x ≤ 12,800

x ≤ 12,800/140

x ≤ 91.42 kilograms

Greatest Number of 140kg crates = 91.42 crates

8 0
3 years ago
The supermarket has 30 aisles. 10% of the aisles are empty, without any shoppers. ​How many empty aisles are there in the superm
lina2011 [118]
3

10/100=x/30
Cross multiply

100x=300
Divide each side by 100

X=3
3 0
3 years ago
Y= 3x+13<br> y=x-3 <br> How do you solve this equation?
ra1l [238]

Answer:

x=-5 & y=-2

Step-by-step explanation:

y= 3x+13

y= x-3

x-3=3x+13

-3=2x+13

-10=2x

x=-5

then

y=3(-5)+13

y=-15+13

y=-2

6 0
3 years ago
Read 2 more answers
What is the remainder when x3 + x2 − 5x − 6 is divided by x − 2 ?
pishuonlain [190]
I believe the answer is C) 0
4 0
3 years ago
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