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
melamori03 [73]
3 years ago
7

HELP IF RIGHT I WILL MARK BRAINLIEST!!!! TRUST

Mathematics
1 answer:
DENIUS [597]3 years ago
6 0

Answer:

I came up with 412cm^2

Step-by-step explanation:

10*12+(12*2)2+(10*2)2+6*8+(8*3)2+(6*3)2+(12*10-6*8)

You might be interested in
Trains Two trains, Train A and Train B. weigh a total of 196 tons. Train A is heavier than Train B. The
aleksklad [387]

Answer:

Train A = 128

Train B = 68

Step-by-step explanation:

We can set up a system of equations for this problem

Let A = # of tons of Train A

Let B = # of tons of Train B

A + B = 196

A = B + 60

Now, we plug in A for the first equation, using substitution

(B+60) + B = 196

2B + 60 = 196

Subtract 60 from both sides

2B = 136

Divide both sides by 2

B = 68

Plug in 68 for B in the 2nd equation

A = 68 + 60

A = 128

Checking work: 128 + 68 = 196 :D hope this helped

5 0
2 years ago
A rectangular piece of metal is 25 in longer than it is wide. Squares with sides 5 in long are cut from the four corners and the
Licemer1 [7]

Answer:

The original length was 41 inches and the original width was 16 inches

Step-by-step explanation:

Let

x ----> the original length of the piece of​ metal

y ----> the original width of the piece of​ metal

we know that

When squares with sides 5 in long are cut from the four corners and the flaps are folded upward to form an open box

The dimensions of the box are

L=(x-10)\ in\\W=(y-10)\ in\\H=5\ in

The volume of the box is equal to

V=(x-10)(y-10)5

V=930\ in^3

so

930=(x-10)(y-10)5

simplify

186=(x-10)(y-10) -----> equation A

Remember that

The piece of metal is 25 in longer than it is wide

so

x=y+25 ----> equation B

substitute equation B in equation A

186=(y+25-10)(y-10)

solve for y

186=(y+15)(y-10)\\186=y^2-10y+15y-150\\y^2+5y-336=0

Solve the quadratic equation by graphing

using a graphing tool

The solution is y=16

see the attached figure

Find the value of x

x=16+25=41

therefore

The original length was 41 inches and the original width was 16 inches

3 0
3 years ago
Plz help asap really need it
luda_lava [24]

Answer:

9

Step-by-step explanation:

perfect square sholud be (a+b)^{2}

so (w+3)*(w+3) is perfect square and extention of it is =>w*w+6w+9

6 0
2 years ago
Maya deposits $8000 into an account that pays simple interest at a rate of 2% per year. How much interest will she be paid in th
Amiraneli [1.4K]
So just find 2% of 8000 and multiply by number of years since

I=PRT
R=rate
T=time in yyears
P=principle
I=interest

8000=principle
rate=2%
time in years=2

2%=0.02
so
I=8000 times 0.02 times 2
I=320

answe ris $320
7 0
3 years ago
Point C(3.6, -0.4) divides in the ratio 3 : 2. If the coordinates of A are (-6, 5), the coordinates of point B are . If point D
polet [3.4K]
Given:
A has coordinates (-6,5)
C has coordinates (3.6,-0.4).
C divides AB in the ratio 3:2.

Refer to the diagram shown below.
The coordinates of B are determined by
\frac{3.6-(-6)}{x-(-6)} = \frac{3}{3+2} \\ \frac{9.6}{x+6} = \frac{3}{5} \\ 3(x+6) = 48 \\ 3x +18=48 \\ x=30/3=10
Also,
\frac{5-(-0.4)}{5-y} = \frac{3}{5} \\ 3(5-y) = 27 \\ 15-3y=27 \\ y= \frac{12}{-3} =-4

Answer:
The coordinates of B are (10,-4).

Now, we know the coordinates of line segment AB as A (-6, 5) and B (10,-4).
D (x,y) divides AB in the ratio 4:5.
Therefore
\frac{x-(-6)}{10-(-6)} = \frac{4}{4+5} \\ \frac{x+6}{16} = \frac{4}{9} \\ 9(x+6)=64 \\ 9x+54=64 \\ x=1.11
Also,
\frac{5-y}{5-(-4)} = \frac{4}{9}  \\ 5-y = 4 \\ y = 1

Answer:
The coordinates of D are (1.11, 1)

4 0
3 years ago
Read 2 more answers
Other questions:
  • A tablecloth has an area of 45 square feet. The length is 4 feet longer than the width. Find the length and width
    11·1 answer
  • Emmanuel will earn $8.00 per hour and work 12 hours per week. How much will he earn in one week? Question 3 options: a) $288.00
    10·1 answer
  • What is a real life situation for the product 4 • (-2)?
    13·2 answers
  • (a) Assuming that the loss distribution is t, find the parametric estimate of VaR(0.025, 24 h). (b) Find the nonparametric estim
    15·1 answer
  • Plz help me, I'm stuck
    14·1 answer
  • the ratio of 7th graders to 8th grader at a school dance is 3 to 2. there are 54 7th graders at a dance. how many 8th graders ar
    5·1 answer
  • What is the product?<br> (4%)(-3x0)(-7x)
    9·1 answer
  • The slope of a line parallel to y = x – 3 would be: Group of answer choices -1 1 3 -3
    7·1 answer
  • What L is alternate interior at L6?<br><br> A. L3<br> B. L5 <br> C. L1<br> D. L4
    12·1 answer
  • A girl work a works a basic week of 40 hours,and her basic rate is 6.25per hour .calculate her basic wage for that week
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!