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ch4aika [34]
3 years ago
5

2/5 × [ -3/7] - 1/6 × 3/2 + 1/14 × 2/5

Mathematics
2 answers:
Nata [24]3 years ago
8 0

Answer:

\frac{-11}{28}

Step-by-step explanation

2/5 × (-3/7) - 1/6 × 3/2 + 1/14 × 2/5

= -6/35 - 1/4 + 1/35

= -11/28

REY [17]3 years ago
6 0

Step-by-step explanation:

here is the answer watch the picture

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The graph shows the temperature of ice cream in an ice chest during an overnight trip. What is the domain of this function?
mariarad [96]

Let

x-------> the number of hours

y------> the temperature in degrees Fahrenheit

we know that

For x=0\ hours

y=-10\°\ F

For x=30\ hours

y=30\°\ F

The domain of the function is the interval----------> [0,30]

0\ hours \leq x\leq 30\ hours

The range of the function is the interval----------> [-10,30]

-10\°\ F \leq y\leq 30\°\ F

therefore

<u>the answer is</u>

The domain is all real numbers 0 through 30

4 0
3 years ago
Read 2 more answers
Alain throws a stone off a bridge into a river below. The stone's height (in meters above the water), xxx seconds after Alain th
Naya [18.7K]
For this case we have the following function:
 h (x) = - 5x ^ 2 + 10x + 15&#10;
 By the time the stone is thrown, x = 0.
 We must evaluate this value of x in the function.
 We have then:
 h (0) = - 5 (0) ^ 2 + 10 (0) +15&#10;&#10;h (0) = 0 + 0 + 15&#10;&#10;h (0) = 15 meters
 Answer:
 The height of the stone at the time is thrown is given by:
 h (0) = 15 meters
4 0
3 years ago
Read 2 more answers
Tom bought one third pickles as many pickles as alexa. Together their pickles cost 56p. How many pickles did they each buy?
nordsb [41]

Answer:

Step-by-step explanation:

let    pickle bought by alexa =x

then according to given condition ,

pickle bought by Tom= (1/3) of Alexa

pickle bought by Tom= (1/3) x

hence also given

totall pickle cost = Tom cost + alexa cost = 56p

(1/3)x+x=56

taking L.C.M

(4/3)x=56

x=56*3/4

x=42 p

so it means,

<h2>Alexa cost = x = 42p</h2><h2>Tom cost = (1/3)x= (1/3)*42 = 14 p</h2>
7 0
2 years ago
Find the value of x and y
sineoko [7]

Step-by-step explanation:

5x-17 and 3x-11 are supplementary angles

They add up to 180 degrees

5x-17 + 3x - 11 = 180

8x - 28 = 180

8x= 208

x= 26

3x-11, 90, and 2y + 5 added together equal 180

3x-11 + 90 + 2y + 5 = 180

3(26) - 11 + 2y + 5 = 90

78 - 6 + 2y = 90

72 + 2y = 90

2y = 18

y = 9

I hope this helps!!!

5 0
2 years ago
Solve the equation of isosceles triangle and find the x​
Fantom [35]

Answer:

x = 25°

Step-by-step explanation:

2x-10°+2x-10°+100°=180°[sum of angles in a triangle ]

4x+80°=180°

4x=100°

x=25°

5 0
2 years ago
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