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
sammy [17]
2 years ago
10

Evaluate the expression when a= 2 and c=-4. -a +5c

Mathematics
1 answer:
-Dominant- [34]2 years ago
4 0
The answer would be 18
You might be interested in
Applying properties of Exponents In Exercise, use the properties of exponents to simplify the expression.
Nastasia [14]

Answer:

(a) 4^7

(b) 7^6

(c) \dfrac{1}{16}

(d) 3^{4}

Step-by-step explanation:

We need to simplify the given expressions.

(a)

Consider the given expression is

(4^5)(4^2)

Using the property of exponent, we get

=4^{5+2}            [\because a^ma^n=a^{m+n}]

=4^7

(b)

Consider the given expression is

(7^2)^3

Using the property of exponent, we get

=7^{2\times 3}            [\because (a^m)^n=a^{mn}]

=7^6

(c)

Consider the given expression is

2^{-4}

Using the property of exponent, we get

=\dfrac{1}{2^{4}}            [\because a^{-n}=\dfrac{1}{a^n}]

=\dfrac{1}{16}

(d)

Consider the given expression is

\dfrac{3^8}{3^4}

Using the property of exponent, we get

=3^{8-4}            [\because \dfrac{a^m}{a^n}=a^{m-n}]

=3^{4}

6 0
3 years ago
8x−5x+4−x=Ax+B
yawa3891 [41]

Answer:

A = 2

B = 4

Step-by-step explanation:

To get an infinite number of solutions, both lines should be the same.

This means

A1x+ B1 = A2x + B2

So,

8x−5x+4−x=Ax+B

2x +4 = Ax +B

With this, we know the value of the coefficients

A = 2

B = 4

5 0
3 years ago
BET YOU CANT SOLVE THIS ONE......✋
MakcuM [25]

Umm, where's the question?????

4 0
3 years ago
Read 2 more answers
For the problem 135 ÷ 5, draw two different ways to break apart the array. Use the Distributive Property to write products for e
mihalych1998 [28]
We can't use the distributive property for this sum

3 0
3 years ago
Based on histogram above what is the average number of hours worked by 20 salesperson in company G
kiruha [24]

Answer:

Average = 38

Step-by-step explanation:

Given

The attached histogram

Required

The average work hours by 20 salespeople

First, we get the total hours worked as follows:

Hours = 3 * 30 + 5 * 34 + 9 * 40 + 2 * 45 + 1 * 50

Hours = 760

Divide by number of salespeople

Average = Hours/n

Average = 760/20

Average = 38

3 0
2 years ago
Other questions:
  • The graph shows Susan’s distance from her office, in yards, as she runs errands, over time, in minutes.
    9·1 answer
  • HELP please
    6·1 answer
  • 316.7 gallons to pints
    13·2 answers
  • What percent of $20,574.50 equals $1,180.47
    10·1 answer
  • What is the meaning of an adjacent interior angle?
    10·1 answer
  • the price of a video game was reduced from $60 to $45.by what percent was the price of the video game reduced?
    5·1 answer
  • The scale is 2cm for every 10 feet. The height of the model house is 5.5 cm. What is the actual height?
    11·2 answers
  • Why does that formula make sense?
    14·2 answers
  • Help me someone solve this​
    8·1 answer
  • Find the value of x in this figure !!NO LINKS!! WILL GIVE BRAINLIEST!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!