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
Karo-lina-s [1.5K]
3 years ago
7

Evaluate this expression what is b=-6 and c=7.c-7b

Mathematics
1 answer:
VLD [36.1K]3 years ago
7 0

Answer:

49

Step-by-step explanation:

substitute b = - 6 and c = 7 into the expression and evaluate

c - 7b = 7 - (7 × - 6) = 7 - (- 42) = 7 + 42 = 49


You might be interested in
Must a function that is decreasing over a given interval always be negative over that same interval ? Explain
Leno4ka [110]
Check the picture below.

5 0
3 years ago
Read 2 more answers
Write an expression to describe the sequence below. Use n to represent the position of a term in the sequence, where n = 1 for t
Marizza181 [45]

Answer:

a_n = -2 + n is an expression which describe the given sequence

Step-by-step explanation:

Arithmetic sequence states that a sequence where the difference between each successive pair of terms is the same.  

The general rule for the arithmetic sequence is given by;  

a_n =a_1+(n-1)d               ......[1]

where

a_1 represents  the first term

d represents the common difference

and n is the number of terms;

Given sequence: -1 , 0 , 1 , 2 , .....

This is an arithmetic sequence with common difference

Since,

0-(-1) = 1

1-0 =1

2-1 = 1 ....

Here, a_1 = -1

Substitute the value of a_1 = -1 , d =1 in [1] we get

a_n = -1 +(n-1)(1)

a_n = -1 + n -1 = -2 +n

Therefore,an expression which describe the given sequence is,  a_n = -2 + n




6 0
3 years ago
There are three marbles in a bag. One is red and two are black. What is the probability of picking a black marble first, putting
Maru [420]

Answer:

well for me I think

Step-by-step explanation:

2/3×2/3

4/9

since they are replacing the black marbles back

6 0
3 years ago
People in here again and again. I think this is the last question
Lilit [14]

Answer:

2.4 cm

Step-by-step explanation:

We know the length of segment AB and the length of segment BC. To find their midpoints, we can divide their length by 2.

Let's find the midpoint of AB.

  • Segment AB: 10 cm
  • Midpoint of AB: 10/2 = 5 cm

Next let's find the midpoint of BC.

  • Segment BC: 5.2 cm
  • Midpoint of BC: 5.2/2 = 2.6 cm

In order to find the difference between these midpoints, we can subtract the midpoint of AB by the midpoint of BC.

  • 5 cm - 2.6 cm = 2.4 cm

Therefore, the difference between the midpoints of AB and BC is 2.4 cm.

5 0
3 years ago
How to slove -10 -1 need help
yuradex [85]

Answer:

-10 - 1 = x

Step-by-step explanation:

If you take -10 and subtract one, it makes the number go down lower because it's negative (example, 12 - 2 is -14)

5 0
3 years ago
Other questions:
  • What's the solution of this equation?
    5·1 answer
  • Please help solve much appreciated
    7·1 answer
  • An interior painter is painting a wall that is 8 feet by 14 feet. He needs to determine how much paint he will need for the job.
    9·1 answer
  • 2x 7 = -3solve for x , what is x
    5·1 answer
  • 3. Yaritza and Eddy race to school on their bikes. Yaritza bikes 2 miles in 12 minutes, and
    10·1 answer
  • A line with a slope of 5 passes through the point (6, 12). Write the equation for this line.
    7·2 answers
  • PLS HELP WITH SCREENHOT ASAP<br> I GIVE BRAINLIEST THANKS :)
    14·2 answers
  • At a restaurant, a meal gives a choice between 4 entrees: Steak, Chicken, Fish or Lamb chops, two sides: potato, or rice and thr
    12·1 answer
  • -5x^2=-500 what is the answer
    14·1 answer
  • A carton of one dozen eggs costs $1.92. What is the unit price of each egg?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!