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
frez [133]
2 years ago
10

Please help me or I'm gonna fail math​

Mathematics
2 answers:
Nookie1986 [14]2 years ago
8 0

Answer:

a) 3x^2 + x - 2

b) 28m

Step-by-step explanation:

a) Since the Area for a normal square is b*l (base x length)

Do the same with this (Using FOIL ig)

(3x - 2) * (x + 1)

3x^2 + 3x - 2x - 2

3x^2 + x - 2

b) Since it's asking us to find out what the number will be while x = 3m, just substitute 3 for every "x" in the answer we got for a

3(3)^2 + (3) - 2

3(9) + (3) - 2

27 + 3 - 2

30 - 2

28m

Therefore the actual area of this rectangle is 28m

12345 [234]2 years ago
5 0

Answer:

Step-by-step explanation:

as said in my comment

A: (3x-2)X(x+1)

B: substitute 3 in(if m=meters),

(3x3-2)

9-2

7X(x+1)

3+1

4

7X4

28

You might be interested in
A coach of a baseball team orders hats for the players on his team. Each hat costs $9.95. The shipping charge for the entire ord
maria [59]

Answer:

just do 125.00 -9.95+5.00 and then youll have your answer

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Which pair or pairs of polygons are congruent?
nlexa [21]
I believe tye answer is C
6 0
3 years ago
Read 2 more answers
An 80 confidence interval for is found to be (200, 240). what is the margin of error
Bogdan [553]

Answer:

It’s 20

Step-by-step explanation:

8 0
3 years ago
In the standard (x, y) coordinate plane, what is the slope of the line joining the points (3,7) and (4,−8)?
rjkz [21]
We know that the slope formula is m = (y1 - y2)/(x1 - x2)
Your points are: (3, 7) and (4, -8)
In this case,
x1 = 3
x2 = 4
y1 = 7
y2 = -8
Now, just plug in the numbers:
m = (7 - -8)/(3-4)
m = 15/-1
m = -15
Your slope is -15.
7 0
3 years ago
ABCD IS A TRAPEZIUM <br><br> WORK OUT THE SIZE OF ANGLE CDA.
zvonat [6]

Answer:

The measure of angle CDA is 27.6\°

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

In the right triangle ABF

Applying Pythagoras Theorem

A.F^{2}=6.5^{2}-6^{2}

A.F^{2}=6.25

A.F=2.5\ cm

In the right triangle CED

CE=6\ cm

ED=23-(9+2.5)=11.5\ cm

so

tan(

substitute the values

tan(

(

7 0
2 years ago
Other questions:
  • Leah is 5 1/2 feet tall Leah's sons height is 2/3 her height. What is s, her sons height, in feet?
    12·1 answer
  • 1/x + 1/3x =6 how do you solve this equation for x
    6·1 answer
  • Which of the following lines best fits the data shown in the scatter plot
    15·1 answer
  • What is the surface area of this cylinder?
    10·1 answer
  • What is the approximate curcumfrance of the circle shown below?​
    14·1 answer
  • According to the records of an electric company serving the Boston area, the mean electric consumption for all households during
    12·1 answer
  • This figure is a tetrahedron. What is the area of its base?
    12·1 answer
  • Even numbers above 20 and below 50<br> complete the venn diagram
    11·2 answers
  • Start time 2 p.m. elapsed time blank and time 8:30 p.m.​
    10·1 answer
  • Pls help if I don’t finish today mom will hurt me
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!