1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ehidna [41]
3 years ago
11

Work out the value of 2a + ay when a= 5 and y= -3

Mathematics
2 answers:
inn [45]3 years ago
5 0
Just plug in a = 5, y = -3 in that!

2a + ay  = 2(5) + 5(-3) = 10 -15 = -5
thats it!
Klio2033 [76]3 years ago
3 0
Just plug the number for each letter it tell you plug 5 for letter a and then plug -3 for y 
2(5)+(5)(-3)
10-15
-5<span />
You might be interested in
The director of a museum recorded the number of students and adult chaperones in several school groups visiting the museum. She
sasho [114]

Answer:

b. 119

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Nick, Paul and krutika share £80 in a ratio 1:1:2 how much money does each person get
pychu [463]

Answer:

Step-by-step explanation:

x + x + 2x = 80

4x =80

X = 20

Nick = 20

Paul = 20

Krutika = 40

4 0
3 years ago
The position of an object along a vertical line is given by s(t) = −t3 + 3t2 + 7t + 4, where s is measured in feet and t is meas
saw5 [17]

Answer:

The maximum velocity of the object in the time interval [0, 4] is 10 ft/s.

Step-by-step explanation:

Given : The position of an object along a vertical line is given by s(t) = -t^3+3t^2+7t +4, where s is measured in feet and t is measured in seconds.

To find : What is the maximum velocity of the object in the time interval [0, 4]?

Solution :

The velocity is rate of change of distance w.r.t time.

Distance in terms of t is given by,

s(t) = -t^3+3t^2+7t +4

Derivate w.r.t. time,

v(t)=s'(t) = -3t^2+6t+7

It is a quadratic function so its maximum is at vertex of the function.

The x point of the function is given by,

x=-\frac{b}{2a}

Where, a=-3, b=6 and c=7

t=-\frac{6}{2(-3)}

t=-\frac{6}{-6}

t=1

As 1 lie between interval [0,4]

Substitute t=1 in the function,

v(t)= -3(1)^2+6(1)+7

v(t)= -3+6+7

v(1)=10

Th maximum velocity is 10 ft/s.

Therefore, the maximum velocity of the object in the time interval [0, 4] is 10 ft/s.

8 0
3 years ago
Read 2 more answers
How many solutions does the system of equations below have?
lina2011 [118]
The answer is infinitely many solutions.
If you graph them both are a straight line which means they are infinite
8 0
3 years ago
Step by step help for 17.5x2.48
kherson [118]
Start by writing it out like this:
  17.50
<u>*  2.48 </u> 
Make sure that all the places are in correct order. Notice that I added a ZERO in the place that had nothing there.
Move the decimal point so everything is a whole number. You have moved it 4 times.
Now, starting from 8, multiply it by 0, then 5, then 7, and lastly, 1. Now go to the next number (4) and do the same, this time though, put a zero in the first spot. Every new number, add another zero. 
After you are done, add them up. Now move the decimal point starting from the right and into the number 4 times. Take out the zeros.
Your answer should be: 43.4

8 0
3 years ago
Other questions:
  • What is the solution to the equation x−23=−13 ? Enter your answer in the box.
    10·2 answers
  • A company invests a total of ​$40 comma 00040,000 of surplus funds at two annual rates of​ interest: 55​% and 66one half 1 2​%.
    12·1 answer
  • Jonathan had to rent a car for one day while his car was getting fixed , the car rental costs $23 per day plus $2 for every mile
    15·2 answers
  • Find the area to the triangle 22cm 5cm 15 cm
    15·1 answer
  • In an exponential function of the form f(x) = ab", a is the
    9·1 answer
  • Find the sales tax. Then find the total cost of the item.
    9·2 answers
  • Find y.<br> 30<br> 20 <br> Need help asap
    8·1 answer
  • Please help i’m struggling so much
    10·2 answers
  • You find one quarter, two dimes, and two nickels.
    5·2 answers
  • Last year, Ishiro Novato drove 21,986 miles and had these expenses: gas $1,187.25; maintenance and miscellaneous $118.80; parkin
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!