can someone help me?
-2+(-8+9)=
Step-by-step explanation:
-2+(-8+9)
= -2+(1)
= -2+1
= -1
Find the product of (21.2)*(0.02)
The volume of a cylinder is 63 pi cm^3 . If the radius is 3cm, what is the height of the cylinder?
A. 3.5 cm
B. 21 cm
C. 10.5 cm
D. 7 cm
will give brainliest
Answer:
Step-by-step explanation:
volume = πr²h = π·3²h = 63π
h = 7 cm
The height of the given cylinder is 7 cm. Therefore, option D is the correct answer.
What is the volume?Volume is the measure of the capacity that an object holds.
Formula to find the volume of the object is Volume = Area of a base × Height.
Given that, the volume of a cylinder is 63π cm³ and the radius is 3 cm.
We know that, the formula to find the volume of a cylinder is πr²h.
Now, πr²h=63π
π×3²×h=63π
h= 7 cm
Therefore, option D is the correct answer.
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ASAP ASAP ASAP ASAP HELP HELP HELP (just need to make sure I got the right answer)
Answer:
$8.76*x
Step-by-step explanation:
can someone solve this
19 + (-60)
Answer:
-41
Step-by-step explanation:
Answer:
-41
if you add a negitive it's like you're subtracting it
Amy ran 0.75 kilometers each day for 3 weeks. How many meters did she run over the 3 weeks?
Answer:
15,750 meters
Step-by-step explanation:
There are 1000 meters in a kilometer
.75 of a kilometer is 750 meters
There are 7 days in a week, 7x3 is 21.
750 x 21 = 15,750
Answer:
15750meters
Step-by-step explanation:
3 weeks=3x7
=21days
1day=0.75km
21days=21x 0.75
=15.75km
1km=1000m
15.75km=(1575/100 x 1000)m
=15750meters
WHAT WOULD THIS BEE!
Answer:
98
Step-by-step explanation:
It would be the same amount because when the lines are parallel, the corresponding angles will also be the same.
We can tell the difference between the two types of angles (Supplementary and complementary) 98 and 82 would be the two types of angles.
So, the angle measure would be 98.
multiple choice answers:
A. 1/2
B. 2
C. -2
D -1/2
Answer:
c
Step-by-step explanation:
rise over run
goes down 2
goes to the right one
-2/1=-2
Can someone save this for me ?
Answer:
1. point it to 381.5
2. point it to 33.5
3. point it to 1,436
4. point it to 3,052.1
for pointing it to in terms of pi im confused about because ive tried to get the answer but can't
Step-by-step explanation:
The coefficient in the expression 3x - 5 is
Answer:
coefficient can be taken of a particular number or variable not a whole expression
Step-by-step explanation:
this may help you
coefficient of x is 3
hope it helps you
please mark me as brainlist
Juan rides his bike 30 miles in 8 hours. At this rate how many miles does he ride his bike
in 2 hours?
1.8 miles
15 miles
30 miles
7.5 miles
Answer:
answer is 7.5 miles
Step-by-step explanation:
30/8=3.75 mi in one hour
3.75*2=7.5 miles in 2 hours
hope it helps
solve in systems by substitution y=2x+1 and 2x-y=3
Answer: No Solution
Step-by-step explanation:
y=2x+1 and 2x-y=3
Substitute y=2x+1 into 2x-y=3
So you will have: 2x-2x+1=3
Then,
2x-2x=0
0+1=3
1=3
1 doesn't equal 3 so there is no solution.
there 6 more girls than boys in a class there 44 students in the class in all how many boys are there
Answer: 28 boys and 16 girls
Step-by-step explanation: Divide 44 by 2 to get 22 subtract 22 by 6 to get the girls and add 6 to 22 to get the boys.
Answer:
44% of the students of a class are girls. If the number of girls is 6 less than the number of boys, how many students are there in the class?
let x be the number of boys, so (x - 6) will be number of girls.
total number of students will be boys plus girls : x + (x - 6) = 2x - 6
now 44% are girls which come from formula no. of girls divide by total students into 100: (x - 6)/(2x-6)*100 = 44
by solving we get x = 28 (where x is number of boys)
now x - 6 = 28–6 = 22 (number of girls)
add both we get total number of students = 28 + 22 = 50
Answer = 50
Step-by-step explanation:
This is not the answer this is a example!
please help! at a recent cross country meet, spectators had to pay to get in. it cost $7 for adults and $3 for students. the booster club selling tickets let's forgot to keep track of how many adults and student tickets they sold. however, they did know they sold 155 total tickets and made $645. write a system of equations to model this situation
Answer:
Step-by-step explanation:
In trapezoid TRAP, the parallel bases are TP and RA
Is UV the midline of trapezoid TRAP? Why or why not?
Use the Trapezoid Midline Theorem that states the properties of
the midline of a trapezoid to justify your answer.
9514 1404 393
Answer:
UV is not the midline. (The midline length is 4.5.)
Step-by-step explanation:
The trapezoid midline is the average of the lengths of the bases. Here, the midline length would be ...
(7 ft +2 ft)/2 = (9 ft)/2 = 4.5 ft
The line length shown is 3.5 ft, so the segment shown is not the midline.
An angle measures 106.4° less than the measure of its supplementary angle. What is the measure of each angle
Answer:
The two supplementary angles are 10 and 170 degrees.
Step-by-step explanation:
Two angles are supplementary when that add up to 180 degrees. In this case, we are given that one of the two angles is 160 degrees more than the other. We can construct the following equation. x + ( x + 160 ) = 180 x
represents the degree measure of the smaller angle. Now, all we need to do is solve the equation for x. 2 x + 160 = 180 2 x = 20 x = 10
Now that we have the value of the smaller angle, we can easily solve for the larger angle. We are told that it is 160 degrees larger than the other one.
10 + 160 = 170. Therefore, the two supplementary angles are 10 and 170 degrees.
Please help! I need the answers with an explanation to these questions ASAP. Thanks!
Question 1. What value could complete this given equation that would make it true for no values of x? Show or explain your thinking.
Question 2. What value could complete this equation that would make it true for every value of x? Show or explain.
Answer:
0
Step-by-step explanation:
Given equations is
x+2y=8,5x+10y=c
The equations a
1
x+b
1
y=c
1
and a
2
x+b
2
y=c
2
will have uique solutions if
a
2
a
1
=
b
2
b
1
=
c
2
c
1
but from equations,
a
2
a
1
=
5
1
,
b
2
b
1
=
10
2
,
c
2
c
1
=
c
8
∴
a
2
a
1
=
b
2
b
1
The given equations does not have unique solution, so the given statement is false, The correct answer is 0
how do I solve this
Step-by-step explanation:
the sum of the angles = 360
8x+2 + 2x + 14 + 3x -4 +5x + 5 = 360
18x +17 = 360
18x = 343
x = 19.1
angles are:
154.8
52.2 smallest (2x + 14)
53.3
105.5
the perimeter of a rectangular court is 224 feet. The length is 4 feet more than the width. Write and solve an equation to find the dimension of the court.
Aaliyah puts 42 gal of water into her
fish tank. This is 60% of the total
number of gallons the fish tank can
hold.
Answer:
the total is 70 gallons
hope this helped :)
Step-by-step explanation:
What the area of the triangle!
need help with these question would mean a lot
finding the distance between two points (-4,-3),(6,1)
Answer:
√16 or 10.77033
Step-by-step explanation:
distance formula
Find the solution to the following system of equations using substitution or elimination y=-2x+7 y=3x-8
Answer:
x = 3, y = 1
Step-by-step explanation:
By substitution since y = -2x + 7, substitute that for the 2nd y so
-2x +7 = 3x - 8, so x = 3, then substitute the 3 in any of the equations, so y = -2(3) + 7 is equal to 1
If you use elimination you can subtract the two equations from each other to get rid of the y so
y = -2x + 7
-y = -3x + 8
so 0 = -5x + 15, 5x = 15, x=3
Need help due today please
divide 220 in the ratio 3:8
Answer:
500/(7+3)=50; 3*50=150, 7*50=350. 150:350=3:7
Step-by-step explanation:
o Ayan sinolve kayan geh pa follow po
220 is divided in the ratio 3:8 as 60 and 160 respectively.
What is the ratio?The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.
The given ratio is 3:8 and the number is 220.
Here, 3+8=11
Now, 3/11 ×220
= 3×20
= 60
8/11 ×220
= 8×20
= 160
Therefore, 220 is divided in the ratio 3:8 as 60 and 160 respectively.
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What is an equation of the line that passes through the points (3, -5) and (-6, -8)
Answer:
y = 1/3x − 6
Step-by-step explanation:
Answer:
y = 1/3x − 6
Step-by-step explanation:
:)
What is an equation of the line that passes through the points (-5, 6) and
(7, 6)?
Answer:
y = 6
Step-by-step explanation:
line of an equation: y = mx +c
where c is y-intercept, m is gradient and y and x are the y and x coordinates.
For finding the line of an equation we first find a gradient
gradient = (y2 -y1) / (x2 - x1)
so; (6-6) / (7-(-5)) = 0/12 = 0
next using any pair of coordinates we will find the c (y-intercept)
6= 0 (-5) + c
c = 6
so the equation will be
y = mx + c
(add the values you just found)
y = (0)x + 6 (since anything multiplied by 0 is 0 so we can write its like;)
y = 6
Which equation can be solved
Answer: Choice B) 2x-60 = 180
===========================================================
Explanation:
A bit of the question got cut off. I'm assuming the full question reads "In this diagram, the measure of angle RQS is 60 degrees less than the measure of angle PQS"
The portion underlined is the part cut off where I'm making the assumption. If that assumption is correct, then we have
angle PQS = xangle RQS = x-60Those two adjacent angles form a straight line of 180 degrees
(anglePQS) + (angleRQS) = 180
(x) + (x-60) = 180
2x-60 = 180
which points to choice B as the answer.
Answer:
Step-by-step explanation:
∠RQS = x - 60°
∠RQS = 180° - x
x - 60° = 180° - x
2x - 60° = 180°
7x-3=18
What is x in the question i cbat figure it out
Number 7!3/5 of the children in a class are girls
Answer:
Total students = 40
Step-by-step explanation:
No: of girls = 3/5
No: of boys = 2/5
No: of boys = 16
2/5 of x = 16
x = 16 x 5/ 2 = 40
Total students = 40
I hope im right!!!