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ss7ja [257]
3 years ago
10

Evaluate the following expression for x = 5 and y=-2-5x2 - (x + y)​

Mathematics
1 answer:
Bas_tet [7]3 years ago
4 0

Answer:   -53

                                                                    i hope it was helpful

Step-by-step explanation:    -5*5*2-3

                                                 -50-3=-53

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a driver travels 2 hours at 60 miles per hour ,during which her car gets 30 miles per gallon of gasoline.she is paid $0.50 per m
Sever21 [200]

Answer:

Her net rate of pay in dollars per hour after the expense = $26

Step-by-step explanation:

Given:

Driver travels for 2 hours.

Speed = 60 miles per hour

Her  car runs at the rate of 30 miles per gallon of gasoline.

She is paid $0.50 per mile.

Expenses is price of gasoline at the rate of $2.00 per gallon.

To find her net rate of pay in dollars  per hour.

Solution:

In one hour the driver travels = 60 miles

For each mile she is paid = $0.50

<em>So, for 60 miles she will be paid = </em>60\times \$0.50 = \$30<em />

<em />

In a gallon of gasoline the car travels = 30 miles

<em>So, to travel 60 miles, the car would require = </em>\frac{60}{30}= 2<em> gallons of gasoline</em>

1 gallon of gasoline cost = $2.00

<em>Expenses for 2 gallons of gasoline = </em>2\times \$2.00=\$4<em />

<em />

So, in one hour she gets paid =$30 and her expenses for an hour drive = $4.

Thus, her net rate of pay in dollars per hour after the expense = \$30-\$4=\$26

8 0
4 years ago
What is the sign of B + A?​
Fed [463]
The sign would be NEGATIVE
4 0
3 years ago
Calculate (Round two decimals places for the final answer): 1880 milliliter (mL)!= _____ pints (puts).
Irina18 [472]

Answer:

0.00

Step-by-step explanation:

1880mL is not even 1 pint

8 0
3 years ago
What is the value of x in the parallelogram if two corners are 60 degrees
Phantasy [73]

Answer:

Can I have a picture/image if possible?

Step-by-step explanation:

8 0
3 years ago
Can anyone show me how I would figure this problem out
jeka57 [31]

The value of x is the number inside the parenthesis, so h(-4) gives x a value of -4.

The equation says when X is ≤ -4 use the first equation


So h(-4) = -1/2(x) -15

= -1/2(-4) -15

= 2 -15

= -13


When x = -2 (h(-2) ) use the 2nd equation:

h(-2) = 20-3x^2

=20-3(-2)^2

= 20-3(4)

=20-12

=8


Now you have -13 + 3(8)

= -13 + 24

=11


The answer should be 11

5 0
3 years ago
Read 2 more answers
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