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
Strike441 [17]
3 years ago
5

Find the value of the expression: −0.5(7b−12a)−(8.4a−14b) if a=−10; b=−6.

Mathematics
1 answer:
ELEN [110]3 years ago
3 0

Replace a and b in the equation with their values given:

-0.5(7(-6)-12(-10)-(8.4(-10)-14(-6))

Multiply within the parentheses

-0.5(-42 + 120) -(-84 + 84)

Add inside the parenthesis:

-0.5(78)-0

Multiply:

-.05 x 78 = -39

The answer is -39

You might be interested in
20 PTS What is the sixth term of the sequence shown in the table? Term Value 1 –46,656 2 7,776 3 –1,296 4 216 5 6 {SEE IMAGE}
olganol [36]

Answer:

a₆ = 6

Step-by-step explanation:

There is a common ratio r between consecutive terms in the sequence, that is

r = \frac{216}{-1296} = \frac{-1296}{7776} = \frac{7776}{-46656} = - \frac{1}{6}

This indicates the sequence is geometric.

To obtain any term in the sequence, multiply the previous term by r, thus

a₅ = 216 × - \frac{1}{6} = - 36

a₆ = - 36 × - \frac{1}{6} = 6

8 0
3 years ago
Draw a generic rectangle to multiply 37.42
aleksley [76]
Draw a rectangle 37 cm by 42 cm and then count how many 1cm by 1cm squares are inside it.
8 0
3 years ago
You start driving north for 16 miles, turn right, and drive east for another 30 miles. At the end of driving, what is your strai
Maru [420]

The distance between starting and ending point is 34 miles.

Step-by-step explanation:

Given,

Car moves 16 miles to north then 30 mile to east.

It forms a right angle triangle.

The straight line distance from starting to ending point represents hypotenuse.

To find the distance between starting and ending point.

Formula

By <em>Pythagoras theorem,</em>

h² = b²+l² where h is the hypotenuse, b is base and l is the another side.

Taking, b=16 and l=30 we get,

h² = 16²+30²

or, h = \sqrt{256+900}

or, h = \sqrt{1156} = 34

Hence,

The distance between starting and ending point is 34 miles.

5 0
3 years ago
4) If rectangle WXYZ has slid three units to the right what will be the coordinates of point W?
uranmaximum [27]
D

Its now in (3,2) if goes right 3 points then x becomes 6 so (6,2)
4 0
2 years ago
Read 2 more answers
Explain how the zero property in the problem 2/3 (0) = 0 (2/3) = 0 is the same with any rational number.
Gala2k [10]
Its because the power of zero is undefined
6 0
3 years ago
Other questions:
  • Solve the linear system of equations using addition. Graph the equations to verify your solution.
    10·1 answer
  • Evaluate using order of operation and please show work​
    14·1 answer
  • Jessie graphed one of the lines in a system of equations: Y=3x-2 If the system has an infinite number of solutions, which statem
    7·2 answers
  • What is the approximate lateral area of the cylinder? Use 3.14 for r and round to
    6·1 answer
  • If a polynomial function f(x) has roots 3+
    10·1 answer
  • Please help 100 points if correct answer!
    6·1 answer
  • please answer will give brainliest
    15·1 answer
  • The expression x-3 is a factor of the polynomial P(X)=x^3-4x^2+4x-3. use synthetic division to write P(X) in factored form.
    7·2 answers
  • the length of the Boston Marathon is about 26 miles. A mile is equal to 1.609 kilometers. How many kilometers does a runner cove
    5·1 answer
  • If it takes 3 men 5 hours to dig 12 holes, how many hours does it take for 3 men to dig 84 holes?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!