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Elanso [62]
3 years ago
10

A high-speed train passes through a 5.4 km long tunnel completely in 1 minute 7.68 seconds.

Mathematics
1 answer:
xenn [34]3 years ago
3 0

Answer:

Step-by-step explanation:

Speed time= distance

Change in/h into m/s by multiplyingby 5/18

=300×5/18=83.33

Time in sec=(1×60)+7.68=67.68

83.33×67.68=5640m

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A statement of an employee's biweekly earnings is given below. Earnings Deductions Week Ended Regular FED. SOC. MED STATE WITH.
DiKsa [7]

Answer:  d. $852.96


Step-by-step explanation:

Given: The net pay = $667.17

Since net pay is the amount of money your employees take home after all deductions have been taken out.

We know that gross pay is the amount of money that employees receive before any taxes and deductions are taken out.

Thus to find the gross pay, we need to add all of the deductions to the net pay as:

Gross pay=667.17+98+52.88+12.37+22.54 =\$852.96

Hence, D is the right option.

8 0
3 years ago
Read 2 more answers
What are a) the ratio of the perimeters and b) the ratio of the areas of the larger figure to the smaller figure? The figures ar
Sergeeva-Olga [200]

Answer: 5/2 and 25/4

Step-by-step explanation:

6x5=30

6x2=12

...

say these were perfect squares,

12x12= 144

30x30= 900

900/144 = 25/5

8 0
3 years ago
I need to find the domain and ranges of some of these graphs and I can’t really do the last few! Can anyone help?
hodyreva [135]
(1) For the parabola on the bottom row, the domain would be R and the range would be y ≥ -5

(2) For the hyperbola on the bottom row, the domain would be R\{3} (since there is an asymptote at x = 3) and the range would be R\{4} (since there is an asymptote at y = 4)

(3) For the square root function on the bottom row, the domain would be x ≥ -5 and the range would be (-∞, -2]

(4) For the function to the very right on the bottom row, the domain would be R and the range would be (-∞, -3]
3 0
3 years ago
Factor the trinomial 2x^2+15x+7
Mashutka [201]

Answer:

(2x+1)(x+7)

Step-by-step explanation:

2x2+15x+7

For a polynomial of the form ax2+bx+c

, rewrite the middle term as a sum of two terms whose product is a⋅c=2⋅7=14 and whose sum is b=15

.

Tap for more steps...

2x2+x+14x+7

Factor out the greatest common factor from each group.

Tap for more steps...

x(2x+1)+7(2x+1)

Factor the polynomial by factoring out the greatest common factor, 2x+1

.

(2x+1)(x+7)

3 0
2 years ago
Is this right? thank you
Ainat [17]

yes it is right right right 100%

6 0
2 years ago
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