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
quester [9]
3 years ago
11

A=2 b=3 c=4 1) ab - c = 2) 6c - 2b= 3) a + b - c + 5 = 4) 7c - 2a =

Mathematics
2 answers:
bekas [8.4K]3 years ago
7 0

Step-by-step explanation:

1)ab-c

=2(3)-4

=6-4

=2

2)6c-2b

=6(4)-2(3)

=24-6

=18

3)a+b-c+5

=2+3-4+5

=10-4

=6

5)7c-2a

=7(4)-2(2)

=28-4

=24

Lady_Fox [76]3 years ago
4 0

Answer:

1. 2×3=6 6-4= 2

2.6×4=24. 24-6=18

3.2+3=5. 5-4=1. 1+5=6

4. 7×4=28. 28-4=24

Step-by-step explanation:

when a number is next to a letter it means to multiply

You might be interested in
From a square piece of cardboard paper of area size 9 m2 , squares of the same size are cut off from each corner of the paper. T
levacccp [35]

Answer:

Max vol = 2 cubic metres

Step-by-step explanation:

Given that from a square piece of cardboard paper of area size 9 m2 , squares of the same size are cut off from each corner of the paper.

Side of the square = 3m

If squares are to be cut from the corners of the cardboard we have the dimensions of the box as

3-2x, 3-2x and x.

Hence x can never be greater than or equal to 1.5

V(x) = Volume = V(x) = x(3-2x)^2\\= 9x+4x^3-12x^2

We use derivative test to find the maxima

V'(x) = 9+12x^2-24x\\V"(x) = 24x-24\\

Equate I derivative to 0

9+12x^2-24x=0\\x=1/2,3/2

If x= 3/2 box will have 0 volume

So this is ignored

V"(1/2) <0

So maximum when x =1/2

Maximum volume

=9(1/2)+4(1/2)^3-12(1/2)^2\\=2 cubic metres

6 0
3 years ago
Gabby assumed she could sell 45 boxes of cookies by Friday, but she only sold 26 boxes. What was Gabby's percent error? ​
Agata [3.3K]

Answer:

73.07%

Step-by-step explanation:

Given that,

Actual value of sold cookies = 26

Assumed value of sold cookies = 45

We need to find Gabby's percent error. The percentage error in a value is given by :

Error = ](Assumed value - Actual value)/Actual value]× 100

So,

\%=\dfrac{45-26}{26}\times 100\\\\=73.07\%

So, Gabby's percent error is equal to 73.07%.

4 0
3 years ago
At what x value does the function given below have a hole?<br><br> f(x)=x+3/x2−9
S_A_V [24]

Answer:

hole at x=-3

Step-by-step explanation:

The hole is the discontinuity that exists after the fraction reduces. (Still doesn't exist for original of course)

The discontinuities for this expression is when the bottom is 0. x^2-9=0 when x=3 or x=-3 since squaring either and then subtracting 9 would lead to 0.

So anyways we have (x+3)/(x^2-9)

= (x+3)/((x-3)(x+3))

Now this equals 1/(x-3) with a hole at x=-3 since the x+3 factor was "cancelled" from the denominator.

4 0
3 years ago
Sandy bought 3/4 yard of red ribbon and 2/3 yard of white ribbon to make some hair bows.Altogether,how many yards of ribbon did
Stolb23 [73]
Sandy bought 1 and 5/12 yards of ribbon
5 0
3 years ago
Read 2 more answers
The cattle at the Clinton Farm are fed 1/4 of a bale of hay each day. The horses are fed 2 times as much hay as the cattle. How
xz_007 [3.2K]

Answer:

1/2 of a bale

Step-by-step explanation:

1/4 times 2 equals 1/2

7 0
2 years ago
Other questions:
  • PLEASE HELP!! BRAINLIEST ANSWER AND FASTEST ANSWER GETS TON OF FREE POINTS...MATH WHIZZES, HELP ME OUT. FORGOT HOW TO DO THIS.
    10·1 answer
  • Help Use the distributive property to demonstrate that the product of 10 and -(1)/(5) is a negative number. Make sure to include
    13·1 answer
  • Find the domain and range !!! 10 points math 3
    12·1 answer
  • Help please ASAP please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    13·2 answers
  • Amber completed a 25-kilometer road race in 3 hours. She ran at the same speed and covered the same distance each hour. Between
    15·1 answer
  • Use the graph of the floor function to complete the statements. Over the interval , y = 2. For an input value of –1.5, the corre
    8·1 answer
  • A school lunch contains 12 cheese sticks. Seventy-five students buy the lunch. What is the total number of cheese sticks served?
    11·1 answer
  • The perimeter of a square measures 26 cm. What is the length of the side of the square? Sketch a model to show how the length is
    13·1 answer
  • Increase £15837.77 by 8.5%
    12·1 answer
  • 1. Set A is the set of factors of 24, set B is the set of even natural numbers less than 25, and set C is the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!