Answers
Answer:
50.27 (to 2dp)
Step-by-step explanation:
radius = 4
area of circle = pi * r * r
16 pi is area = 50.2655 units^2 (to 4dp)
Answer:
50.24
Step-by-step explanation:
Area of the circle is [tex]\pi r^{2}[/tex]. If the diameter is 8, then we know that the radius is 4, because the radius is half of the diameter. Then solve. 4 squared is 16, then multiply by 3.14 in place of pi and you will get 50.24. So yes, you are correct, it is 50.24.
Related Questions
HURRY WILL MAKE BRAINLEST! Given: sin(18m-12)=cos(7m+2), find the value of m.
Answers
Answer:
m = 4
Step-by-step explanation:
In order for this equation to be true, the angles must be complementary.
So, 18m- 12 + 7m + 2 = 90
25m - 10 = 90
25m = 100
m = 4
Simplify the expression
x2 + 12x - 4 + 3x-2x-5
Answers
is this anywhere close to being right?
Answers
Answer:
yes
Step-by-step explanation:
Answer:
yes the answer is right it is 48.98
I NEED HELP ASAP ASAP!
PLEASE HURRY AND ANSWER QUICKLY AND CORRECTLY ITS WORTH 50% OF MY GRADE!!!
Answers
Answer:
$16
Step-by-step explanation:
Find the equation of the line.
Use exact numbers.
Answers
Answer:
y = 2/3x+4
Step-by-step explanation:
!!!!!!!!!!!!!!
What is the slope of the equation that passes through the points
(-5,4) and (5,2) ?
Answers
Answer:
[tex] - \frac{2}{10} [/tex]
or
-0.2
8 - 5xt-8х - 5x
how do I solve this?
Answers
Answer:
[tex]8 - 5xt - 13x[/tex]
Step-by-step explanation:
1) Collect like terms.
[tex]8 - 5xt + ( - 8x - 5x)[/tex]
2) Simplify.
[tex]8 - 5xt - 13x[/tex]
Therefor the answer is 8 - 5xt - 13x.
question is below
will give brainliest to best answer
Answers
Answer:
Step-by-step explanation:
think its c
In ΔTUV, t = 320 inches, u = 360 inches and ∠V=81°. Find the area of ΔTUV, to the nearest square inch.
Answers
Answer:
[tex]Area = 56892in^2[/tex]
Step-by-step explanation:
Given
[tex]\triangle TUV[/tex]
[tex]t = 320in[/tex]
[tex]u = 360in[/tex]
[tex]\angle V = 81^\circ[/tex]
Required
Calculate the area
Given two sides and a middle angle, the area of a triangle is:
[tex]Area = \frac{1}{2}ab*sinC[/tex]
In this case, it is:
[tex]Area = \frac{1}{2}tu*sinV[/tex]
[tex]Area = \frac{1}{2}*320*360*sin(81)[/tex]
[tex]Area = \frac{1}{2}*320*360*0.9877[/tex]
[tex]Area = 56891.52[/tex]
[tex]Area = 56892in^2[/tex] --- approximated
Answer:
56000
Step-by-step explanation:
HELPPP PLS !!!!!!!!!!!!!!!!!!!
Answers
please help me thank you!!!
Answers
Answer:
The answer is D
Step-by-step explanation:
Answer:
A. 12 inches
Step-by-step explanation:
Set a proportion
20/27.5=x/27.5-11
27.5x/27.5=330/27.5
x=12
Mrs. Santos baked 25 cookies. 3 fifths of the cookies were oatmeal. How many oatmeal cookies did Mrs. Santos bake?
Answers
Answer: 15 oatmeal cookies.
Step-by-step explanation:
There were 25 cookies baked.
Out of these, 3/5 are oatmeal cookies.
The amount of actual oatmeal cookies is:
= fraction of oatmeal cookies * total number of cookies
= 3/5 * 25
= 75 / 5
= 15 oatmeal cookies.
Find the measure of side a. Round to the nearest whole number.
Answers
9514 1404 393
Answer:
16 m
Step-by-step explanation:
The useful trig relation is ...
Sin = Opposite/Hypotenuse
sin(41°) = a/(25 m)
a = (25 m)sin(41°) ≈ 16.40 m
The measure of side 'a' is about 16 meters.
find the length of the bold arc. Round your answer to the nearest tenth.
Answers
Answer:
The length of the bold arc is approximately 13.4 mi
Step-by-step explanation:
The radius of the circle having the arc, r = 17 mi
Therefore, the circumference of the circle, 'C', is given as follows;
C = 2·π·r
∴ C = 2×π×17 = 34·π
The angle subtended by the arc = 45°
The sum of the angles at the center of the circle = 360°
By similarity, the ratio of the length of the bold arc to the circumference of the circle = The ratio of the angle subtended by the arc to the sum of the angles at the center of the circle
Mathematically, we have;
[tex]\dfrac{The \ arc \ length}{C} = \dfrac{\theta}{360^{\circ}}[/tex]
Therefore, we get;
[tex]\dfrac{The \ arc \ length}{34 \cdot \pi} = \dfrac{45 ^{\circ}}{360 ^{\circ}} = \dfrac{1}{8}[/tex]
[tex]{The \ arc \ length}{} = \dfrac{1}{8} \times 34 \cdot \pi = 4.25 \cdot \pi[/tex]
The length of the bold arc = 4.25·π mi ≈ 13.4 mi (by rounding off the answer to the nearest tenth).
I need this to be done in 5 minutes
Answers
Answer: 6 is C and 7 is a
Step-by-step explanation:
Answer:
6) b. 75
7) d. 62
Step-by-step explanation:
the sides of the box are the quartiles, and the dots at the end are the range of the data. the line in the middle of the box is the center of the data.
27 points pls help
at what value of x does the graph of the following function F(x) have a vertical asymptote?
Answers
Answer:
The answer is C again, its zero
I-
please. help.
I have a test soon and I don’t know anything please.
Answers
Answer:
The answer is √5+√3+10+2√15
Answer: [tex]\sqrt{5} + \sqrt{3} + 10 + 2\sqrt{15}[/tex]
Step-by-step explanation:
[tex]\frac{2+4\sqrt{5} }{\sqrt{5}-\sqrt{3} }[/tex]
You need to multiply by the conjugate
To find the conjugate, first remember:
(a+b)(a-b) = a^2 - b^2 (if a and b are sqrts, this will eliminate the square roots, rationalizing the denominator)
You have √5 - √3 as the denominator
You should multiply by √5 + √3
(This will eliminate the sqrts)
Remember to multiply both the numerator and denominator
[tex]\frac{2+4\sqrt{5} }{\sqrt{5}-\sqrt{3} } = \frac{2+4\sqrt{5} }{\sqrt{5}-\sqrt{3} } * \frac{\sqrt{5}+\sqrt{3} }{\sqrt{5}+\sqrt{3}}[/tex]
Now simplify
[tex]\frac{2+4\sqrt{5} }{\sqrt{5}-\sqrt{3} } * \frac{\sqrt{5}+\sqrt{3} }{\sqrt{5}+\sqrt{3}} = \frac{(2+4\sqrt{5})(\sqrt{5}+\sqrt{3})}{(\sqrt{5}-\sqrt{3})(\sqrt{5}+\sqrt{3})} = \frac{2\sqrt{5}+2\sqrt{3}+20+4\sqrt{15}}{5-3} = \sqrt{5} + \sqrt{3} + 10 + 2\sqrt{15}[/tex]
You have a new 10-day workout routine. You want to do 10 sets of 10 sit-ups each day. Which expression shows the total number of sit-ups you do in 10 days?
Answers
Answer: The answer is 10^3.
Hope this help
help please! ill mark brainliest!
Answers
Answer:
0.225989
Step-by-step explanation:
3x+9+x-11=180
4x-3=180
4x=180-3
4x/4x=177/4x
0.225989
Answer:
=78 degrees
Step-by-step explanation:
complementary angles add up to 90 degrees
A + B = 90
3x + 9 + x - 11 = 90
3x + x + 9 - 11 = 90
4x - 2 = 90
collect like valuables
4x = 90 + 2
4x = 92
x =23
angle A = 3x + 9
= (3 x 23) + 9
= 69 + 9
= 78
Small boxes contain DVDs, and large boxes contain one gaming machine. Three boxes of gaming machines and a box of DVDs weigh 48 pounds. Three boxes of gaming machines and five boxes of DVDs weigh 72 pounds. How much does each box weigh?
Answers
someone please help me
Answers
Answer:
Option B (2 in the blank)Step-by-step explanation:
Given function:
f(x) = 2x² - 5x + 7The leading term is 2x², the leading coefficient is 2, this is positive.
The graph opens upward.
Correct option is B.
False, because 2 > 0Option B is correct trust me my guy
Someone plz help me !
Giving brainliest
Answers
Answer:
(6,3)
Step-by-step explanation:
It will make a weird diamond shape.
Answer:
(6,3)
Step-by-step explanation:
A rhombus lis like a diamond shape so we know its going to be opposite if point B.
Point B is located 3 units above the invisible line that connects A and C.
Count down 3 units from that line and you will get your answer.
Hope this Helps!:)
(3x + 4)3
How is this written in expanded form?
Answers
3(3x)+3(4) = 9x+12
Answer:
(3x + 4)3
By using distributary property,
(3x × 3) + (3 × 4)
9x+12
6y^3 (2y^2 - 8y + 2)
Answers
Answer:
=6y^3×2y^2-6y^3×8y+6y^3×2
=12y^2-48y^4+12y^3
Please aswer this. Thank you!
Answers
Answer:
4 pairs of sock and a little bit of left over change.
Step-by-step explanation:
24.95 + 5.95x = 50
-24.95 -24.95
5.95x=25.05
/5.95 /5.95
x = 4.21
We drop the 0.21 because you cant have 0.21 pairs of socks and we get:
x=4
Answer:
About 4 pairs.
Step-by-step explanation:
50.00-24.95=25.05
5.95x5=29.75 (that is more the 25.05, so no.)
5.95x4=23.80 (Its a little bit less but not higher than the number we have left to spend.)
Could u mark brainliest, plz. Thx ☺️
HELP DUE IN 10 MINS! Find the missing side measurement.
Your answer should be a simplified radical or a whole number. (no decimals allowed)
x =
Answers
Answer:
9^2 + x^2 = 12^2
x^2 = 144 - 81
x^2 = 63
x = √63 = 3√7 or 8
hope that answers your question
Answer:
9^2 + x^2 = 12^2
x^2 = 144 - 81
x^2 = 63
x = √63 = 3√7 or 8
hope that answers your question
Step-by-step explanation:
The Ski Club sells 180 keychains. A third of the keychains sold are blue and 1/6 of the remaining keychains are white. The rest of the keychains are red. How many keychains are red?
Answers
Answer:
Step-by-step explanation:
blue = ⅓×180 = 60
180-60 = 120 are not blue.
white = ⅙×120 = 20
120-20 = 100 are red
(Someone Help Me Please) (Or Anyone)
Circle the expressions that are equivalent:
A. 3 (145)
B. 300 + 120 + 15
C. 3 (1 + 4 + 5)
D. 3 (100 + 40 + 5)
Answers
Which equation could be used to find the missing value of x?
Answers
Answer:
d
Step-by-step explanation:
Write the expression in expanded form.
(4.2z)(-5y-3)