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
Kryger [21]
3 years ago
8

your going to build a 3 foot by 7 garden.if you want to surround it by a 1 foot wide brick border , how many square feet will yo

u need
Mathematics
1 answer:
stiv31 [10]3 years ago
5 0

Answer:

20

Step-by-step explanation:

Multiply 3 and 7 by 2 and you get 6 and 14          6+14=20 which is the perimeter

Hope that helps!

You might be interested in
a scale model of the human heart os 196 in. The scale is 32:1, what is the approximate actual size of the heart
Yanka [14]
If it is a 32:1 then the answer is somewhere around 6.125 inches

32 : 1 = 196 : X
32X = 196
X = 196/32
X= 6.125


7 0
3 years ago
Lucy is knitting a blanket and needs to buy some more yarn. At her local craft store, 2 skeins of yarn cost 57 and 8 skeins of y
prisoha [69]

Answer: it’s A 7/2 i just took this

Step-by-step explanation:

5 0
3 years ago
A right triangle has a hypotenuse length of 12, and one side length of 9. find the missing side length. do the side lengths form
Rina8888 [55]

Use the Pythagorean theorem:

a^2+b^2=c^2

c - a hypotenuse

a, b - legs

We have: a = 9 and c = 12. Substitute:

9^2+b^2=12^2

81+b^2=144               <em>subtract 81 from both sides</em>

b^2=63\to b=\sqrt{63}\\\\b=\sqrt{9\cdot7}\\\\b=\sqrt9\cdot\sqrt7\\\\ \boxed{b=3\sqrt{7}}

A Pythagorean triple consists of three positive integers a, b and c, such that

a^2+b^2=c^2.

b=3\sqrt{7} is not positive integer.

<h3>The sides of the triangle do not form a pythagorean triple.</h3>
5 0
3 years ago
Find the total surface area in square inches, of the following 3-
Ivenika [448]

Answer:

81 in²

Step-by-step explanation:

The 3-dimensional shape given is a square pyramid having a square base, and 4 right triangular side faces that are the same.

The surface area can be calculated by finding the area of the square base and the area of the 4 triangular side faces. Then sum all the areas together.

Or, we can use the following formula below: Base Area + ½(Perimeter of base) × Slant Length

Where,

Base area = s² = 5² = 25 in²

Perimeter of base = 4(s) = 4(5) = 20 in

Slant height = 5.6 in

Surface area = 25 + ½(20) × 5.6

= 25 + 10 × 5.6

= 25 + 56

Surface area = 81 in²

6 0
3 years ago
Convert 2.4 kg into cg. Please show your work.
strojnjashka [21]
The solution to the problem is as follows:

kilo -> 1000 
<span>centi -> 100
 </span>

<span>2.4 x 1000 g = 24 x 100 g. </span>

<span>So, on the left we have 2.4 kg, and on the right we have 24 cg
</span>
I hope my solutions has come to your help. Thank you and have a nice day ahead!
7 0
3 years ago
Other questions:
  • james recently installed a new pool in his backyard the pool is 20 ft long 15 feet wide and 5 ft deep, what is the volume
    6·1 answer
  • Help me please! thanks
    6·2 answers
  • Hi i need help with 18- 20
    7·1 answer
  • What is the approximate volume of a cone with a height of 9 fr and radius of 3 ft?
    15·1 answer
  • Find the GCF. 14abc and 28 a 2 b 2 c 3
    11·1 answer
  • Hoshi walks 10 meters in 3 seconds. She walks at this same rate for 50 seconds. How far does she walk?
    13·1 answer
  • P=2L +2W;P=32,W=7<br><br> 25<br> 16<br> 12.5<br> 9
    12·1 answer
  • What is 10x5/6 pls helppp thank you
    10·1 answer
  • Giving 25 points + brainliest if its correct
    14·1 answer
  • 12.99 marked down 25%
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!