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
9966 [12]
3 years ago
9

A circle has an area of approximately 615 square millimeters. What is the diameter of the circle

Mathematics
1 answer:
noname [10]3 years ago
3 0

Answer:

When using the given information, the diameter of the circle is going to be 28 mL.

Step-by-step explanation:

First, we need to know the formula for finding the area of a circle.

Area=r^2\pi

Now, we need to rearrange the formula so we can find the radius.

Radius=\sqrt{\frac{A}{\pi} }

Next, we plug in the given area into the equation.

Radius=\sqrt{\frac{615}{\pi}}

Radius=\sqrt{196}

Radius=14

Now that we have the radius, we can find the diameter. The radius is half the length of the diameter. So, in order to find the diameter, we have to multiply the radius by 2.

14 * 2=28

So, the diameter of the circle is 28 mL

You might be interested in
The volume of a barrel of oil is 257166 cm3 round this figure to the nearest hundred thousand
Fudgin [204]

Answer: Hope this helps :D

the answer is 300000 cm3

Step-by-step explanation:

3 0
2 years ago
Help me solve this pleaseee
Drupady [299]
Since they are equal to 90 degrees. (complimentary angles)

6x-11+7x+10= 90

Combine like terms.

13x-1= 90

Add one to both sides.

13x= 91

x= 7

Plug that into the b.

7(7)+10

49+10

59


I hope this helps!
~kaikers
3 0
3 years ago
I'm new to the app. Stumped on all of these
nekit [7.7K]
What are you stumped on?
3 0
3 years ago
I NEED HELP !!! 30 points!!!! and brainliest :)<br><br>please give sensible answer :(<br><br><br>​
Allushta [10]

Answer:

Step-by-step explanation:

9) PQR Is an isosceles triangle

=> ∠PRQ = (180° - x)/2

PRS is an isosceles right triangle

=> ∠PRS = 45°

Have: ∠PRS + ∠PRQ = 115°

=> \frac{180-x}{2}+45=115 \\

=> 180 - x = (115 - 45).2 = 140

<=> x = 180 - 140 = 40

10) ABD is an isosceles right triangle => ∠ABD = 45°

BCD is an equilateral triangle => ∠CBD = 60°

have: x = ∠ABD + ∠CBD = 45° + 60° = 105°

11) have: x = y (2)

PQT is an isosceles triangle => ∠PQT = 180 - 70.2 = 40

QTS   is an isosceles triangle => ∠TQS = 180 -2x

QRS   is an isosceles triangle => ∠RSQ = y

have: 40 + 180 - 2x + y = 180 => 2x - y = 40 (1)

(1)(2) => \left \{ {{y=x} \atop {2x-y=40}} \right.\\\\=> \left \{ {{x=40} \atop {y=40}} \right.

=> x + y = 80

12) EFJ Is an equilateral  triangle => ∠FJE = 60

∠FJE is the outer angle of the triangle FHJ but FHJ is an isosceles triangle

=> 60 = 2.∠JHF => ∠JHF = 30°

∠JHF is the outer angle of the triangle FHG

=> 30° = 2x

<=> x = 15°

7 0
2 years ago
A baby outfit uses 2/9 square yard of fabric for the hat and 5/9 square yards of fabric for the bib. A tailor has 5 4/9 square y
Ludmilka [50]

Answer:

She can make<u> 7 </u>baby outfits.

Step-by-step explanation:

Given:

A baby outfit uses 2/9 square yard of fabric for the hat and 5/9 square yards of fabric for the bib.

A tailor has 5 4/9 square yards of fabric.

Now, to find the outfits she can make.

So, we add to get the total fabric used for baby outfits hat and bib:

\frac{2}{9} +\frac{5}{9}\ square\ yards.

=\frac{2+5}{9}\ square\ yards.

=\frac{7}{9}\ square\ yards.

Total fabric used for outfit = =\frac{7}{9}\ square\ yards.

Total fabric tailor has = 5\frac{4}{9} =\frac{49}{9}\ square\ yards

Now, to get the number of outfits from the fabric tailor has we divide by total fabric used for outfit:

Number of outfits = Total fabric tailor has  ÷  Total fabric used for outfit.

Number\ of\ outfits = \frac{49}{9} \div\frac{7}{9}

<em>Thus, on dividing we get:</em>

Number\ of\ outfits = 7\ outfits.

Therefore, she can make 7 baby outfits.  

6 0
3 years ago
Other questions:
  • Elena is 56 inches tall. What is her height in centimeters? (Note: 100 inches = 254 centimeters) What is her height in meters?
    11·2 answers
  • The sum of the measures of the interior angles of a triangle is equal to _____.
    8·1 answer
  • A waterslide is 4.2 m high and has a support 2.4 m tall. If a student reaches this support when she is 3.1 m down the slide, how
    13·1 answer
  • What is the inverse of the function f(x) =2x-10
    9·2 answers
  • -10(4-10x)+5(1-10x)
    8·2 answers
  • Hey could you please help me? Thank you<br> No answers like "I don't know" or "febebfe"
    8·2 answers
  • The measures of the angles of a triangle are shown in the figure below. Solve for x.<br> 54°
    11·1 answer
  • A triangular sail has a base length of 3 meters. The area of the sail is 12 square meters. How tall is the sail
    14·2 answers
  • 5. For which equation is the ordered pair (-3,4) a solation?
    13·2 answers
  • The height of a house is 39.2 ft, a doll house replica is 2.8 ft. What is the scale<br> factor?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!