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
lisov135 [29]
3 years ago
11

3 of 8 The area of a circle is 16.71cm2. Find the length of the radius rounded to 2 DP.

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
6 0

Answer:

Radius = 2.31 cm

Step-by-step explanation:

Area of circle = 16.71 square centimeters

\pi r^2 = 16.71 \\3.14r^2=16.71\\r^2=\frac{16.71}{3.14}\\r^2=5.32\\\sqrt{r^2}=\sqrt{5.32}\\r=2.306

Radius of circle = 2.31 centimeter

You might be interested in
Need help asap<br> brainly guaranteed
Bas_tet [7]
I believe the answer is H
4 0
3 years ago
Read 2 more answers
The lifespans of crocodiles have an approximately Normal distribution, with a mean of 18 years and a standard
antiseptic1488 [7]

Answer:

0.0618.

Step-by-step explanation:

14-18= -4

-4/2.6= -1.538

Use the Z-table to find the proportion that aligns with 1.54 (round up because of the 0.008)

The intersection between 1.5 and 0.04 will be 0.0618.

5 0
2 years ago
Which expressions are equivalent to cos2(105°) – sin2(105°)? Check all that apply.
IgorLugansk [536]

Answer:

1,2,5

Step-by-step explanation:

Failed on EDG

4 0
3 years ago
Read 2 more answers
Which graph represents the solution set of the system of inequalities? {x+y&lt;12 y≥x−4
RSB [31]

Answer: The graph in the bottom right-hand corner

(see figure 4 in the attached images below)

===========================================

Explanation:

Let's start off by graphing x+y < 1. The boundary equation is x+y = 1 since we simply change the inequality sign to an equal sign. Solve for y to get x+y = 1 turning into y = -x+1. This line goes through (0,1) and (1,0). The boundary line is a dashed line due to the fact that there is no "or equal to" in the original inequality sign. So x+y < 1 turns into y < -x+1 and we shade below the dashed line. The "less than" means "shade below" when y is fully isolated like this. See figure 1 in the attached images below.

Let's graph 2y >= x-4. Start off by dividing everything by 2 to get y >= (1/2)x-2. The boundary line is y = (1/2)x-2 which goes through the two points (0,-2) and (4,0). The boundary line is solid. We shade above the boundary line. Check out figure 2 in the attached images below.

After we graph each individual inequality, we then combine the two regions on one graph. See figure 3 below. The red and blue shaded areas in figure 3 overlap to get the purple shaded area you see in figure 4, which is the final answer. Any point in this purple region will satisfy both inequalities at the same time. The solution point cannot be on the dashed line but it can be on the solid line as long as the solid line is bordering the shaded purple region. Figure 4 matches up perfectly with the bottom right corner in your answer choices.

5 0
3 years ago
Read 2 more answers
Need help ASAP (Geometry) Fast!
suter [353]
6) arc length = 2*PI*R* degree/360
arc length = 2 * PI * 3 * 65/360
= 6*PI x 65/360
= 13/12*PI

Answer = C

7) drawing the lines as given would make a T shape with B being the mid point, so the answer would be C
3 0
3 years ago
Other questions:
  • There are 4 colas, 1 ginger ale, 7 root beers, and 6 cherry sodas in a cooler. What are the odds of against choosing a ginger al
    9·2 answers
  • Michael and his brother eric both live 5 miles from the park. If michael rides his bike at an average of 12 mph and eric rides h
    11·1 answer
  • What is TR to the nearest whole number?<br> TR/65 = tan(44)<br> TR = 65*tan(44)
    8·1 answer
  • Rewrite f(x) = –2(x − 3)2 + 2 from vertex form to standard form. pleae help.
    5·2 answers
  • Triangle RST was dilated with the origin as the center of dilation to create triangle
    15·1 answer
  • What is the solution to the following equation?<br> 5(2x - 6) + 20 = 10<br> 09<br> 05<br> 03<br> O2
    6·2 answers
  • Shakira is baking cookies to put in packages for a funraiser. Shakira has made 86 chocolate chip cookies and 42 sugar cookies. S
    15·1 answer
  • What is the area of the triangle?<br> 7<br> 5<br> 4
    14·2 answers
  • Find the exact volume of the cylinder?<br><br> 471 cm³<br> 60π cm³<br> 180π cm³<br> 150π cm³
    11·2 answers
  • I need help finding m
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!