Answer:
157
Step-by-step explanation:
Formula: C= 2r3.14, so multiply them together to get 157.
or to make it easy do C= D3.14
D being diameter and r being radius.
I have one word to say. MATH.
What is the missing value ? i’ll mark brainlist
Answer:
50
Step-by-step explanation:
Alexandra is going to a carnival that has games and rides. Each game costs $3 and
each ride costs $4.50. Alexandra spent $54 altogether at the carnival and the number
of rides she went on is 7 more than the number of games she played. Graphically
solve a system of equations in order to determine the number of games Alexandra
played, 2, and the number of rides Alexandra went on, y.
PLEASE ANSWER ASAP
Answer:
Game =$6 and ride=$9, to solve is 3x+4y=54
x+y=15
Step-by-step explanation:
;)
Dante buys his lunch every day at school. After 15 days, Dante has spent $37.50 on school
lunches. At this rate, how much did Dante spend on school lunches after 5 days?
Answer:
12.5
Step-by-step explanation:
37.50÷15=2.5
2.5×5=12.5
Answer: $12.50
Step-by-step explanation:
You have to divide 37.5 by 15 which is 2.5 then multiply that by 5 which is 12.5.
what is the perimeter of this building?
Answer:
115 m
Step-by-step explanation:
4 + 9 + 6 + 4 = 23 cm
23 x 5 = 115 m
Another submarine's descent can be represented as `y=-240x`, where u is the elevation and x is time in hours. How long will it take this submarine to make the descent (2,100 feet below the surface)?
Answer:
The time it will take is 8hours 45mins.
Step-by-step explanation:
Since y = –240x represents a submarine descent. We are looking for how long, that is the time, it will take for the submarine to make a descent of 2100. We know that y is the elevation, if it is descending it will be in the negative direction, making it -ve.
A descent of 2100 means y = –2100. Hence,
–2100 = –240x
x = –2100/–240 = 8.75hours = 8hours 45minutes. (0.75hours = 3/4hours = 3/4 x 60mins = 45mins).
Solve for x.
6x + 10 = 52
Answer:
7
Step-by-step explanation:
well let’s just think that there’s already 10. let’s ignore the 10 for later.
now let’s think about 6x. of course the x is unknown (variable) which we have to find, so what you want to do, (easy way) think of every multiple of the number 6. so that of course includes 6, 12, 18... etc. now if you continue, you will get to the number 42. now it might not click right there but 42... is what we need since we already have the 10. since 42 + 10 = 52, now we just need to find out what 42 divided by 6 is... 7! 7x6 or 7(6) is 42, plus the starting 10 is 52!
therefore, x = 7.
Find the product. (2f – 1)^2 =
Answer: 4f^2 -4f+1
Step-by-step explanation:
2f-1)^2
This is equal to
(2f-1) * (2f-1)
FOIL
first: 2f*2f = 4f^2
outer: 2f*-1 = -2f
inner: -1*2f = -2f
Last = -1*-1 = 1
Add them together: = 4f^2 -2f-2f+1
Combine like terms 4f^2 -4f+1
Answer:
(2f-1)(2f-1)
2f^2-2f-2f+1
2f^2-4f+1
write this phrase as an expression: the sum of 25 and 14
Answer:
25 + 14
Step-by-step explanation:
Sum means addition of values.
Answer:
25+14
Step-by-step explanation:
expression doesn’t use an equal sign and sum is addition :)
will give 100 points
Answer:
x=28
m<ACD=68°
Step-by-step explanation:
2x+(180-124)+(180-4x)=180
-2x+236=180
-2x=180-236
-2x=-56
x=28
m<ACD=180-4x=180-4(28)=180-112=68
Answer:
The answer is <ACD = 68°
Step-by-step explanation:
Using the property that the sum of interior angles in a triangle is equal 180°,we have:
<DAC + <ACD + <ADC = 180°
[tex]2x + (180 - 4x) + 56 = 180 \\ - 2x + 56 = 0 \\ 2x = 56 \\ x = \frac{56}{2 } \\ x = 28[/tex]
Finally, calculating the angle <ACD, we have:
<ACD = 180 - 4x
<ACD = 180 - 4 . 28
<ACD = 180 - 112
ACD = 68°
Find BC please help!
Answer:
BC=23
Step-by-step explanation:
Use sine rule:
x/sinX=y/sinY
BC/sinA=AB/sinC
BC/sin61=9/sin20
BC=26.3142396015*sin61
BC=23.0149525338
10) using opposite operations solve for x
30 = - 6 x + 12
In the diagram, which pair of angles are alternate interior angles?
O <2 and <5
O <1 and <7
O <5 and <3
O <7 and <4
The alternate interior angles shown are <3 and <5, as well as <2 and <8.
I hope this helped!
Answer:
ur answer would be
<2 and <5
step-by-step explanation:
hope this helps
Name this polynomial by its degree: 3x² + 5x-3
Answer:
[tex]\boxed{\textsf {The given polynomial is a quadratic polynomial. }}[/tex]
Step-by-step explanation:
A polynomial is given to us and we need to make the polynomial by its degree . Here the given polynomial is 3x² + 5x -3 .
[tex]\sf\implies p(x)= 3x^2+5x-3 [/tex]
So here we can see that the highest power of the variable in the given polynomial is 2 . So the polynomial is a quadratic polynomial .
★ More to Know :-
When we equate this quadratic polynomial with 0 , it becomes a quadratic equation.
That is ,
[tex]\sf\implies p(x)= 3x^2+5x-3=0[/tex]
This is done in order to find the zeroes of the polynomial. The zeroes of the polynomial are the values for which the polynomial becomes 0 .
please help!!!!! i’ve been stuck on this question
Answer:
30
Step-by-step explanation:
The angle for BOF is going to be 180.
So if the angle for COF is 150, then COB is going to be the complement angle.
This means it's 180 - 150 = 30.
rick believes the two expressions 4(3a-3) +2a and 14a-3 are equivalent. is he correct? explain why or why not?
Answer:
no
Step-by-step explanation:
4(3a-3)+2a when you expand youget
((4x3a)-(4x3)) + 2a = 12a - 12 + 2a then we collect the like term first 12a + 2a - 12
14a -12
therefore 14a - 12 is not equal to 14a- 3
Solve for the missing side, then give each trig ratio a fraction in simplest form
Answer: sin L= 3 cos L= 3 tan L= 3 sin M= 5 cos M= 5 tan M= 5
Step-by-step explanation:
im just like that
(3z+1)+5+7z) Step by step explanation needed
Answer: 10z + 6
Step-by-step explanation:
this is a short problem.. sometimes you would need to distribute, but since there is no number in front of parenthesis you can just get rid of them
that gives you: 3z + 1 +5 + 7z
now from here we combined liked terms
7z + 3z = 10z
1 + 5 = 6
so that gives you: 10z + 6
i have to solve for H
Answer:
h = [tex]\frac{3v}{\pi r^{2} }[/tex]
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
What is the approximate volume of the cylinder?
Answer:
V ≈ 509 m3 ← with 3.14 for π =2462 feet³
Step-by-step explanation:
I hope I helped, This is my math just round up :)
Somone please help I am completely lost...
I REALLY need help! Solve the inequality. State the solution in inequality notation.
2(3x−4)+14>−2(−3x−5)+4x
Answer:
x<−1
Step-by-step explanation:
Answer:
x < -1
2(3x - 4) + 14 > -2(-3x - 5) + 4x
<=> 6x - 8 + 14 > 2(3x + 5) + 4x
<=> 6x + 6 > 6x + 10 + 4x
<=> 4x + 4 < 0
<=> 4x < -4
<=> x < -1
Evaluate the expression. √9 =?
here is the question then the answers
Answer:
Domain is all real numbers.
Step-by-step explanation:
Domain is the x-values, as you see the function goes on forever on the x-axis because of the arrows.
(I’ll give brainliest) Jack designed a bridge that would be 0.2 miles long and 3/5 of the bridge has been built. How long is the section of the bridge that is finished? Show how you know.
Answer: 0.12
Step-by-step explanation: Well since 5/5=1 and in this case 3/5 of 0.2 or
3/5 x 0.2 = 0.12miles of the bridge is finished. to check do 0.2*2/5 since 2/5+3/5=5/5 or the total 0.2miles. so 0.2*2/5 =0.8 and 0.8+0.12= 0.2
2x-8
The number 2 is a constant in the expression.
a. True
b. False
Answer:
False
Step-by-step explanation:
2 is next to a variable making it a coefficient.
Answer:
False
Step-by-step explanation:
The constant is 8 because it stands alone and has a fixed value 2 does not stand alone and does not have a fixed value
5x + 10y = -5
-5 - y = 32
What is the best way to study Geometry?
Answer:
diagramming, knowing your properties well, understand and know the angles, and have a good math understanding
Step-by-step explanation:
hope this helps
The radius of a circle is 5 cm. What is the radius of another circle whose area is 25 times that of the first one?
Answer:
Step-by-step explanation:
a₁ = πr₁⁵ = 25π cm²
a₂ = 25(25π) = 625π cm²
r₂ = 25 cm
Find the percent of decrease. Round to the nearest whole percent. 428 to 377
Answer:14
Step-by-step explanation: