A circle has a radius 30 cm. What is the area? Show your
work.
Answer:
I believe the area = 2,826
Step-by-step explanation:
A=pie×radius²
A= 3.14×30²
A=3.14×900
A=2,826
Which function has a graph with a y-intercept of -4?
A. 2x – 4y = 8
B. 2x – 8y = -4
C. 4x – 2y = -8
D. 4x - 2y = 8
Answer:
D
slope is 2 and y-intercept is (0, -4)
Step-by-step explanation:
4x-2y= 8 move variable x to the right (change signs)
- 2y= -8 + 4x Divide both sides by 2
y= -4 + 2x reorder terms using communitive property
y = 2x -4
y= mx + b
In a certain Algebra 2 class of 28 students, 7 of them play basketball and 5 of them
play baseball. There are 18 students who play neither sport. What is the probability
that a student chosen randomly from the class plays both basketball and baseball?
How to solve 25= 4+ 7x
Answer: x =3
Step-by-step explanation:
SINE COSINE TANGENT If someone who acctually understand this could help me por favor :)
Answer:
here it is, hope it helps
Answer:
Step-by-step explanation:
sin M = [tex]\frac{3\sqrt{11} }{18} = \frac{\sqrt{11} }{6}[/tex]
cos M = [tex]\frac{15}{18} = \frac{5}{6}[/tex]
tan M = [tex]\frac{3\sqrt{11} }{15} = \frac{\sqrt{11} }{5}[/tex]
I’m confused?????????
Answer:
The equation of the line is y - 3 = 2.5(x - 2) ⇒ D
Step-by-step explanation:
The rule of the slope of a line is m = [tex]\frac{y2-y1}{x2-x1}[/tex] , where
(x1, y1) and (x2, y2) are two points on the lineThe point-slope form of a line is y - y1 = m(x - x1), where
(x1, y1) is a point on the lineFrom the given figure
∵ The line passes through points (2, 3) and (0, -2)
∴ x1 = 2 and y1 = 3
∴ x2 = 0 and y2 = -2
→ Substitute them in the rule of the slope to find it
∵ m = [tex]\frac{-2-3}{0-2}=\frac{-5}{-2}=2.5[/tex]
∴ m = 2.5
→ Substitute the values of m, x1, y1 in the form of the equation above
∵ m = 2.5, x1 = 2, y1 = 3
∵ y - 3 = 2.5(x - 2)
∴ The equation of the line is y - 3 = 2.5(x - 2)
need help with another HW assignment.
Solve for x.
Answer Choices:
7
8
9
-11
Answer:
x = -11
Step-by-step explanation:
Well the two equations add up to 180 because they are a linear pair.
x + 56 + x + 146 = 180 (collect like terms)
2x + 202 = 180 (subtract 202 on both sides)
2x = -22 (divide by 2 on both sides)
x = -11
Hope this helps ya!!
Please help me before I fail... I really need some help
Answer:
sin 61 degrees = x/55
55 * sin 61 degrees = x
x is approximately 48.1 if I did the math right
Step-by-step explanation:
hope it helps! gl
Tommy bought stamps at the post office. Some of the stamps had a snowflake design, some had a truck design, and some had a rose design. Tommy bought 14 snowflake stamps. He bought 5 more truck stamps than snowflake stamps, and 5 fewer rose stamps than truck stamps. How many stamps did Tommy buy in all? Show your work, how you came up with the answer.
Answer:
47
Step-by-step explanation:
s = Number of stamps with snowflake design = 14
Number of stamps with truck design is 5 more than snowflake design
[tex]t=s+5\\\Rightarrow t=14+5\\\Rightarrow t=19\ \text{stamps}[/tex]
Number of stamps with rose design is 5 fewer than truck stamps
[tex]r=t-5\\\Rightarrow r=19-5\\\Rightarrow t=14\ \text{stamps}[/tex]
Total number of stamps
[tex]s+t+r=14+19+14\\ =47[/tex]
So total number of stamps Tommy bought is 47.
Please help it’s due in an hour! It’s algebra.
Answer:
You might wanna double check some of these because i might've forgot to flip some of the < and > signs but I'm pretty sure its correct
1) y = x < -18 and y = x < 18
2) y = -3 < x < 3
3) x = 1 < y < 6 (it just gets simplified)
4) x = -3 > y > -18
5) y = -2 > x and y = x < 3.5
6) y = 8.5 > x > 5.5
7) y = -5.75 < x < -3.5
8) y = 1 > x > 2.25
9) -17 < x < -5
Step-by-step explanation:
A recipe for cookies calls for 1 cup of butter, twice as much sugar as butter, and three times as much flour as sugar. How many cups of flour will you need if you halve the recipe?
Answer : 3 cups
Explanation: if the sugar is as twice as much as butter we need 2 cups of sugar if flour is 3 times as much as sugar we’ll need 6 cups half of 6 is 3
if 2x + 5y = -5 what is x if y = -5
HELP ASAP
Answer:
x=10
Step-by-step explanation:
first substitute y with the value (-5)
2x+5(-5)=-5 which is simplified to 2x+-25=-5
add 25 to -5 which gives you 2x=20
then divide 20 by 2 which makes x=10
The steps in solving 5b - 6 = 24 are:
Answer:
5
Step-by-step explanation:
5
5x - 2y = -26
-7x + 4y = 40
Show your work?
Answer:
x = -4, y = 3
Step-by-step explanation:
In one equation (let's use the top one), solve for one of the variables (let's solve for y first).
5x - 2y = - 26 --> -2y = -5x - 26 --> y = (5/2)x + 13
Now, substitute ((5/2)x + 13) in for y in the second equation.
-7x + 4((5/2)x + 13) = 40 --> -7x + 10x + 52= 40 --> 3x = -12 --> x = -4
Then, subtitute that in to one of the equations.
5(-4) - 2y = -26 --> -20 - 2y = -26 --> -2y = -6 --> y = 3
Marsha recorded the time it took seven children of different ages to run one lap around the track.
Using the line of best fit, which is closest to the length of time it should take Marsha's 6 year old niece to
run one lap?
A. 190
B. 200
C. 205
D. 210
Let a(x) be the amount of money remaining on Hillary's gift card after purchasing x apps on her phone.
Since a(12) = (38, 15,35, 65) Hillary will have
(35,15,38,12) dollars remaining on her card after purchasing
(12,15,35,38) apps.
Answer:
she purchased 12 apps costs 12 *1.25 = 15 . So , she spent 15 ... Since a(12) = 35, Hillary will have 35 dollars remaining on her card after purchasing 12 apps.
Step-by-step explanation:
hopefully this helps
Answer:
35, 35, & 12.
Step-by-step explanation:
i did the test and i got it right :D
PLEASE HELP! ILL GIVE YOU BRAINLIEST!
Answer:
A.
Step-by-step explanation:
It is the final step when doing math like that.
Add. 2/3 + 1/4 ...............................
Answer:
11/12
Step-by-step explanation:
2/3+1/4
8/12+3/12= 11/12
ABCD is a rhombus. Solve for x, if m AFB
(16x + 6)
B
F
D
C
x+2y-z = 9
-2x+y+z= 1
2x-y+2z= -5
Answer:
I don't understand the first one
The land John owns covers an area of 2.17 x 104 square miles. The land Sam owns covers an area of 5.34 x 103 square miles. About how many times greater is the area owned by John than the area owned by Sam?
Answer:4.064 times
Step-by-step explanation:
Step 1
Area of Land owned by John =2.17 x 104 square miles
Area of Land owned by Sam= 5.34 x 103 square miles.
When we say about how many times is a quantity greeter than the other we mean that how much is the smaller quantity contained in the larger quantity. and in such cases, we divide.
Area of Land owned by John/Area of Land owned by Sam
=2.17 x 104 square miles/ 5.34 x 103 square miles
=21,700 square miles /5,340 square miles
=4.064 times
Therefore we say that John's owns an area of land by 4.064 times Sam's land.
Richard spent $30 at a store. He spent $14 on a book and bought some CD's at $4 each. How
many CD's did Richard buy at the store? Write an equation to represent the problem, then
solve.
Answer:
4
Step-by-step explanation:
30 minus 14 = 16 and 16 divided by 4 is 4. so the answer is 4
A news report says that 9% of middle school students are on the track team. There are 600 students in your middle school How many students in your school would you expect to be on the track team? HE Pad SATTE BAR HG West nus SAUNA w 1
Answer: 54
9% of 600 would be 54.
The product of 2 and y is at least 10. solving inequalities
Answer:
2y>10
y>5 is your answer
A right triangle with a base equal to 24 in and height equal to 18 in.
Answer: A= 216
Step-by-step explanation:
help me with question 3 for brainliest
Answer:
1. y>2x+1
2. The dots and the marked zone over the line indicates that it is a ">"
Please tell me how to do this geometry problem
Answer:
See attachment
Step-by-step explanation:
The angles are congruent which means that the triangles are congruent.
WXY ~~ WZY
3x-2(x+5)=14 then x
Answer:
x = 24
Step-by-step explanation:
3x-2(x-5)=14
remove the parentheses using distributive property
3x-2x-10=14
collect like terms
x-10=14
move constant to the right side and change the sign
x=14+10
calculate ( add the numbers together)
x = 24
Which is greater than 4: (a) 5 or (b) 5?
Answer:
I think C. is correct
Step-by-step explanation:
Just trust me, I'm smart ;)
Answer:
they both are the same number
Step-by-step explanation: