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
Effectus [21]
2 years ago
10

I need help with these 2 questions.

Mathematics
1 answer:
ahrayia [7]2 years ago
7 0

Answer:

Step-by-step explanation:

6). Surface area of a triangular prism = Area of the triangular bases + (Perimeter of the triangular base)×height

Area of one triangular base = \frac{1}{2}(\text{Base})(\text{Height})

                                              = \frac{1}{2}\times 4\times 3

                                              = 6 km²

Perimeter of the triangular base = (4 + 3 + 5)

                                                      = 12 km

Height of the triangular prism = 7 km

Surface area of the given triangular prism = 2(6) + (12)(7)

                                                                      = 12 + 84

                                                                      = 96 km²

7). Surface area of a rectangular prism = 2(lb + bh + hl)

Here, l = Length, b = Width and h = Height

By substituting the values from the given question,

l = 9 in, b = 9 in, h = 4 in

Surface area of the rectangular prism = 2(9×9 + 9×4 + 4×9)

                                                               = 2(81 + 36 + 36)

                                                               = 2(153)

                                                               = 306 in²                              

You might be interested in
Anyone know the answer?
jonny [76]
Answer is 4 so C for you. I just did this with my brother! Hope this helped.
8 0
2 years ago
Read 2 more answers
Distribution property 18+45
kvv77 [185]

Answer:

Simplified: its 63 then to 3² · 7

Step-by-step explanation:

3 0
3 years ago
You sent the same email message to 10 of your friends. The numbers of hours it took them to reply were 1, 1, 1, 2, 2, 3, 4, 5, 5
Katarina [22]
Median is 5
Mean is 4.9
Mode is 1
7 0
3 years ago
Read 2 more answers
At the animal shelter there are 8 cats and 20 dogs. What is the ratio of cats to dogs?
Umnica [9.8K]
The ratio is 8:20 
please mark as brainliest
6 0
3 years ago
Read 2 more answers
(8.96 x 10^4) (7.97 x 10^9)/2.54 x10^6
viktelen [127]

\text{Scientific notation:}\\\\a\cdot10^k\\\\\text{where}\ 1\leq a

\dfrac{(8.96\cdot10^4)(7.97\cdot10^9)}{2.54\cdot10^6}=\dfrac{(8.96)(7.97)}{2.54}\cdot\dfrac{(10^4)(10^9)}{10^6}\\\\\text{Use}\ a^n\cdot a^m=a^{n+m}\ \text{and}\ \dfrac{a^n}{a^m}=a^{n-m}\\\\=\dfrac{71.4112}{2.54}\cdot10^{4+9-6}=\dfrac{7141.12}{254}\cdot10^7\approx28.11\cdot10^7\\\\=2.811\cdot10\cdot10^7=2.811\cdot10^{7+1}\\\\=\boxed{2.811\cdot10^8}

6 0
2 years ago
Other questions:
  • PLZZZZZZZZZZZZZZZZZZZZZZ HELP!
    5·1 answer
  • Someone help me quick!
    8·1 answer
  • What part of this problem needs to be changed to make it correct? explain how you know. 46 divided by 8 = 6.75
    5·2 answers
  • 8x(5+7). please answer will give 10 pts & brainiest
    13·2 answers
  • A teacher has four books—A, B, C, and D—to assign to four students in any order he prefers. Set S includes all possible arrangem
    8·2 answers
  • How does multiplying each dimension of the isosceles trapezoid by a scale factor of 3 affect its perimeter?
    6·1 answer
  • ANSWER #2 PLEASE :)
    12·1 answer
  • Sheleah and her family are planning a trip from Los Angeles, California to Melbourne, Australia. While booking her family's plan
    13·2 answers
  • 3(у +8) - 10<br> Distribute property
    12·1 answer
  • The graph of an absolute value function contains the points (–3, 5), (0, 2) and (3, 5). Which could be the function represented
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!