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damaskus [11]
3 years ago
15

Sebastian studies from 3:15 - 4:45. His sister, Sasha studies from 4:30 - 6:15. Who studied longer and by how much

Mathematics
2 answers:
Alenkasestr [34]3 years ago
8 0
Sabastian: 1.5 hrs

Sasha : 1.75 hrs

Sasha studies .25 hrs longer (15 minutes)
Levart [38]3 years ago
7 0

Answer:

Step-by-step explanation:

Sebastian studies from 3 : 15 to 4 : 45.

the time of Sebastian's studies

  4 : 45

<u> - 3 : 15  </u>

<u>    1 : 30  </u>     hours

Sasha studies from 4:30 to 6:15.

The time of Sasha's studies

  6 : 15

<u> - 4 : 30  </u>

<u>   1  : 45 </u>       hours

Sebastian studied 1 hour 30 minutes and Sasha studied 1 hour 45 minutes.

Difference in time of study = 1 : 45

                                             <u> - 1 : 30  </u>

                                              <u>   0 : 15  </u> hours

Sasha studied longer than Sebastian by 15 minutes.

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A rectangle has a length of 80 units and a width of 39 units. Find the length of the diagonal.
levacccp [35]
Equation = a² + b² = c²

a = 80
b = 39
c = Diagonal

a² + b² = c²
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6 0
3 years ago
-5х + Зу = -8<br> 3х - 7y = -3<br> Ordered pair
tatiyna

Answer:

1. y= 2x-5        

2. y= x+3

3. y=2x+7

Step-by-step explanation:

6 0
3 years ago
What is the step by step of<br> 1/ cos x csc^2 x = sin x/ cot x
Effectus [21]

Answer:

what is the step by step of 1/ cos x csc^2 x = sin x/ cot x

Step-by-step explanation:

1

.

csc

x

=

1

sin

x

2

.

cot

x

=

cos

x

sin

x

Given,

1

−

cos

x

sin

x

=

csc

x

−

cot

x

Simplify the right side.

csc

x

−

cot

x

=

1

sin

x

−

cos

x

sin

x

=

1

−

cos

x

sin

x

∴

, LS

=

RS.

7 0
3 years ago
Describe the graph of the quadratic from the original y = x^2 .
Citrus2011 [14]

Answer:

a. Narrower

b. Shifts left

c. Opens up

d. Shifts up

Step-by-step explanation:

The original quadratic equation is y = x²

The given quadratic equation is y = 5·(x + 4)² + 7

The given quadratic equation is of the form, f(x) = a·(x - h)² + k

a. A quadratic equation is narrower than the standard form when the coefficient is larger than the coefficient in the original equation

The quadratic coefficient is 5 > 1 in the original, therefore, the quadratic equation is <em>narrower</em>

b. Given that the given quadratic equation has positive 'a', and 'b', and h = -4, therefore, the axis of symmetry <em>shifts left</em>

c. The quadratic coefficient is positive, (a = 5), therefore, the quadratic equation <em>opens down</em>

d. The value of 'k' gives the vertical shift, therefore, the given quadratic equation with k = 7, <em>shifts up.</em>

4 0
2 years ago
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