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
zmey [24]
3 years ago
12

The area of a square poster is 987cm square.Find the perimeter of the poster, leaving your answer correct to 1 decimal place

Mathematics
1 answer:
pochemuha3 years ago
3 0
√987 = 31.416556145
Length of one side: 31.416556145
31.416556145 × 4 = 125.66622458
125.66622458 to 1dp: 125.7

Perimeter: 125.7cm
You might be interested in
The formula T= 2pi sqrt(L/32) relates the time, T, in seconds for a pendulum with the length, L, in feet, to make one full swing
tester [92]

The length of pendulum is 2.485 feet

<h3><u><em>Solution:</em></u></h3>

Given that,

The formula T= 2pi sqrt(L/32) relates the time, T, in seconds for a pendulum with the length, L, in feet, to make one full swing back and forth

<u><em>Therefore, the given formula is:</em></u>

T=2\pi \sqrt{\frac{L}{32} }

We have to find the length of pendulum that makes one full swing in 1.75 seconds

So the modify the given equation to find "L"

T=2\pi \sqrt{\frac{L}{32} }\\\\ \sqrt{\frac{L}{32} }=\frac{T}{2 \pi}\\\\\text{Taking square root on both sides }\\\\\frac{L}{32} = \frac{T^2}{4 \pi^2}\\\\L = \frac{T^2}{4 \pi^2} \times 32\\\\L = \frac{T^2}{\pi^2 } \times 8

Substitute T = 1.75 seconds and \pi = 3.14

L = \frac{1.75^2}{3.14 \times 3.14} \times 8\\\\L = \frac{3.0625}{9.8596} \times 8\\\\L = 2.485

Thus length of pendulum is 2.485 feet approximately

7 0
3 years ago
Caroline wants to make cookies to bring to a party. she will need to double the recipe to have enough. how much of each ingredia
anygoal [31]

Answer:

1 1/2 cups of peanut butter

1 cup of vegetable shortening

2 1/2 cups grimly packed light brown sugar

6 tablespoons of milk

5 1/2 teaspoon vanilla extract

2 large eggs

3 cups of flour

1 1/2 teaspoon of baking soda

1/2 teaspoon of salt

Step-by-step explanation:

You just double everything by 2

3 0
2 years ago
Which of these professionals most directly uses geometry?
Pavel [41]
MEDICAL IMAGING SPECIALIST
7 0
3 years ago
16 is a factor of 24.<br> O A. True<br> O B. False
Alexxx [7]
The answer is b/false I hope this help
5 0
2 years ago
Read 2 more answers
SOMEONE HELP WHAT IS THE ANSWER TO THESE QUESTIONS PLEASE HELP
romanna [79]
10.
Answer: 42° and 138°
Steps: First find value of x by adding both equations and setting them equal to 180°:
3x + 12x - 30 = 180
15x - 30 = 180
15x = 210
x = 14

Next, put value of x into equations to find the angle:
3x
3(14)
42°

12x - 30
12(14) - 30
168 - 30
138°


11. Answer: 28°
Steps: Complementary angles add up to 90°, so subtract 62° from 90° to find its complementary angle.
90 - 62 = 28


12. Answer: Corresponding angles are congruent.
7 0
3 years ago
Other questions:
  • What is the measure for the following angle? ​
    8·1 answer
  • Write the equation y= x^2-6x+16 in vertex form
    6·1 answer
  • I need to be able to find the value of x
    13·1 answer
  • √m/3=4<br> My teacher didn't explain how to solve these to well can someone explain?
    6·1 answer
  • How would i write 4.67 as a mixed number?
    10·1 answer
  • Matt says he can find the sum of 45+50 without rewriting it. Explain how you can solve this problem using mental math.
    12·2 answers
  • Which is closest to the volume of a sphere with a radius equal to 8 centimeters?
    13·1 answer
  • Is 3:2 and 10:5 equvalent?
    8·1 answer
  • A shopper purchased 4 boxes of sugar and 3 boxes of coffee for $40.75. Another shopper purchased 1 box of sugar and 4 boxes of c
    8·1 answer
  • Probability and Two-Way Tables
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!