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
aivan3 [116]
3 years ago
13

Evaluate the expression when a = 7 and c= -4. -a+5c pls help

Mathematics
1 answer:
charle [14.2K]3 years ago
4 0

Answer:

-27

Step-by-step explanation:

a = 7 and c = -4

- a + 5 c

- ( 7 ) + 5 ( - 4 )

- 7 - 20

- 27

You might be interested in
Need help!!!<br> What is the real part of z?<br><br> What is the imaginary part of z?
Andrej [43]

Step-by-step explanation:

z_z=wdyxdhxfbxtbxfhcthcdybxfjcdtcxtbxdgcdtgxrbxdh cg cgbcyv

7 0
3 years ago
What is the first step in simplifying
seraphim [82]
Distribute the negative b and negative one to he terms in the parentheses
In an expression, if there area brackets, you always have to expand THEN solve it
7 0
3 years ago
Find the midpoint of AB for: A(7,0)|and B(0,3)​
liberstina [14]

Answer:

\boxed {\boxed {\sf (\frac {7}{2}, \frac{3}{2}) \ or \ (3,5, 1.5) }}

Step-by-step explanation:

The midpoint is essentially a point with the average of the 2 x-coordinates and the 2 y-coordinates.

The formula is:

(\frac {x_1+x_2}{2}, \frac{y_1+y_2}{2})

We are given two points: A (7,0) and B (0, 3). Remember points are written as (x, y).

Therefore,

x_1= 7 \\y_1=0 \\x_2=0 \\x_2=3

Substitute the values into the formula.

(\frac {7+0}{2}, \frac{0+3}{2})

Solve the numerators first.

(\frac {7}{2}, \frac{3}{2})

The midpoint can be left like this because the fractions are reduced, but it can be written as decimals too.

(3.5, 1.5)

3 0
3 years ago
In the literal equation below, what do C and F represent?
Zolol [24]
Answer: Variables

F and C are placeholders for numbers. They are called variables because they are allowed to vary, or change. If you change C then it affects F, and vice versa. If the values for the placeholders is not allowed to change, yet it holds a number, then it is considered a constant. In this case, we don't have constants or else the formula isn't too useful. 
3 0
3 years ago
Find the value of x in the following..... 3^x = 8​
elena-14-01-66 [18.8K]
Find logarithm of both sides

log (3^x) = log 8

xlog3 = log8

x = log8/log3

x = 1.893
7 0
3 years ago
Read 2 more answers
Other questions:
  • Find the median of: 1, 3, 4, 6, 2, 4, 5, 6, 2, 3, 1, 4, 0, 4, 4, 4, 8, 9, 7, 4
    15·2 answers
  • F(x)=-2x^4+13x^3-25x^2+8x+12
    9·1 answer
  • The ordered pairs (1, 81), (2, 100), (3, 121), (4, 144), and (5, 169) represent a function. What is a rule that represents this
    5·2 answers
  • Name three uses for mercury
    6·2 answers
  • I need help also an explanation would be appriciated
    13·2 answers
  • Please help!! i’ll give brainliest
    11·1 answer
  • A bag contains 8 white marbles, 6 red marbles and 4 blue marbles. How many blue marbles must be added to the bag so that the pro
    15·2 answers
  • Pls help me with this question. will give brainliest.
    15·1 answer
  • The area of a square garden is 49 yd2. How long is each side of the​ garden? in yd.
    7·1 answer
  • Free_points/brainleast
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!