Answer:
134
Step-by-step explanation:
Using the graph, determine the coordinates of the x-intercepts of the parabola.
Answer:
x=1
x=3
Step-by-step explanation:
X-intercepts are the points in which the graph crosses the x-axis
what is the value of x? 5x+2=9x-38
Answer:
10
Step-by-step explanation:
5x+2=9x-38
-4x=-40
x=10
a rectangular wall with a height of 7 1/2 ft has a perimeter of 46 ft. What is the area of the wall?
Answer:
116.25 ft²
Step-by-step explanation:
Height = 7.5ft
Perimeter : 2(7.5)ft + 2x ft = 46ft
Length = x ft
15+2x = 46ft
31 ft = 2x ft
x = 15.5 ft
7.5 x 15.5 = 116.25 ft²
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
A researcher studying microorganisms has discovered a strain of bacteria that doubles every 2.8 days. How many bacteria will the researcher have after 7.3 days if they started with 650 bacteria?
Answer:
3960.4 bacteria
Step-by-step explanation:
The formula to solve the above question is given as:
P(t) = Po (2) ^t/k
P(t) = Population after time t = ?
Po = Initial population = 650 bacteria
t = Time in days = 7.3 days
k = doubling time = 2.8 days
P(t) = 650 × (2)^7.3/2.8
P(t) = 650 × 2^2.6071428571
P(t) = 650 × 6.0929582599
P(t) = 3960.4228689 bacteria.
Approximately = 3960.4 bacteria
Therefore, the number of bacteria the researcher will have after 7.3 days if they started with 650 bacteria is 3960.4 bacteria.
Find x.
A. 4/6
B. 6
c. 4√3
D.3/2
Joey has 2 tens.
He wants to trade the tens for ones.
How many ones should Joey get?
Answer:
20 ones
Step-by-step explanation:
It takes 8 workers 12 days to build a wall work out how many days it would take 3 workers to complete the same job
Can anyone please help?
Answer: 4.5 days or 4 1/2 days
Step-by-step explanation: We can use cross product property, to solve this. Workers to Days remember that
If 8 workers can build a wall in 12 days. How many days will it take 3 workers to build the same wall ?
❍ Explanation -:In this question we are provided that 8 workers can finish a piece of work in 12 days. We are asked to calculate how many days it will take 3 workers to complete the same work.
We can solve this question using two methods :
Unitary MethodMethod of proportion[tex] \small \green{ \underline{ \underline{\bf{ Unitary \: Method}}}}[/tex]
8 workers can build a wall in 12 days
1 worker can build a wall in 12 × 8 days
3 workers can build a wall in [tex]\dfrac{12 × 8}{3}[/tex] = 32 days.
Hence, If 8 workers can build a wall in 12 days. 3 workers will take 32 days to build the same wall.[tex] \rule{47mm}{4pt}[/tex]
[tex] \small \orange{ \underline{ \underline{\bf{ Method \: of \: proportion }}}}[/tex]
Let us assume that 3 workers can build a wall in x days.
[tex] \begin{array}{ cc } \bf{Number \: of \: workers} & \bf{Number \: of \: days} \\ 8 &12 \\ 3&x \end{array}[/tex]
Ratio of workers = Inverse ratio of days
[tex] \small\sf{ 8 : 3 :: x : 12}[/tex]
Product of mean = Product of extreme
[tex] \rightarrow \small\rm{ 3 \times x = 8 \times 12}[/tex]
[tex] \rightarrow{x \: }\small\sf{ = \dfrac{8 \times 12}{3} = 32 \: days } [/tex]
Hence, If 8 workers can build a wall in 12 days. 3 workers will take 32 days to build the same wall.[tex] \rule{73mm}{5pt}[/tex]
Find the mean and median of this list: 21, 18, 24, 19, 18, 18, 18, 19, 21, 24.
Answer: mean-20 and median-(19+19)/2 = 19
Step-by-step explanation:
Answer:
Mean→ 20
Median→ 19
Step-by-step explanation:
Mean: is the sum divided by the number of terms.
Median: Arrange the numbers in ascending order and the median is the middle value.
✧༝┉┉˚*❋ ❋ ❋*˚┉┉༝✧
hope it helps..
have a great day!!
show that 7200 is not a perfect square number
Step-by-step explanation:
7200√720084.85stay safe healthy and happy.Please help. SINE=?
Answer: opposite/hypotenuse
Step-by-step explanation:
Can somebody solve for X on this please
Answer:
x = 15
Step-by-step explanation:
(10)(18) = 12x
x = 15
#17: Jackson would like to determine which elective is the favorite among
his peers. He surveys every 20th person to walk through the front door of
school and finds that 27 out of 40 students like P.E. the best. If there are
800 students at the school, how many would you expect to say P.E.? *
Answer:
dic
Step-by-step explanation:
you suck it then eat it
Can someone please help me with math. I know the pic is blurry but can you try your best please.
Answer:
A
Step-by-step explanation:
Step 1, Identify the coordinates of each vertices in the pre image
A ( -2 , 3 )
B ( 1 , 3 )
C ( 3 , -6 )
D ( -4 . -6 )
Step 2 apply dilation.
To apply the dilation we multiply the x and y values by the scale factor. ( assuming that the dilation is about the origin. )
The scale factor is 2 so we multiply the x and y values of the coordinates by 2, which is as simple as it sounds.
A ( -2 , 3 ) -------> A' ( -4 , 6 )
B ( 1 , 3 ) --------> B' ( 2 , 6 )
C ( 3 , -6 ) ---------> C' ( 6 , -12 )
D ( -4 , -6 ) ----------> D' ( -8 , -12 )
Hence the new coordinates are A' ( -4, 6 ), B' ( 2 , 6 ), C' ( 6 , -12 ), D' ( -8 , -12) Which corresponds with answer choice A
How many solutions does the system have?
3y = -6x + 9
e su
y=-62 +9
a fou
Choose 1 answer:
3 equ
Exactly one solution
ng w
No solutions
requ
Infinitely many solutions
se ch
Answer:
exactly 1 solution
Step-by-step explanation:
Kayla is painting a room that is 12 feet long and 12 feet wide. The ceiling in the room is 8 feet high. The cost of painting the walls and door is $0.33 per square foot. The cost of painting the ceiling is $0.66 per square foot. Enter the cost, in dollars, for Kayla to paint the room.
Answer: $221.76
Step-by-step explanation:
Each wall has a length of 12 and a height of 8 and there are 4 walls
(12 x 8) x 4 = 384 sq ft
multiply sq ft by cost ($0.33)
384 x 0.33 = $126.72 for the walls and door
The ceiling has a length of 12 and a width of 12
12 x 12 = 144 sq ft
multiply sq ft by cost ($0.66)
144 x 0.66 = 95.04
add the costs
126.72 + 95.04 = $221.76 total
image of drawing of room
HELP ASAP
The data below are the number of beds in a sample
of 15 nursing homes in New Mexico in 1988.
44, 59, 59, 60, 62, 65, 80, 80, 90, 96, 100, 110, 116,
120, 135
Which box plot represents the data?
Answer:
c
Step-by-step explanation:
because it's the only one with median 80!!
in a sale, the price of a coat was reduced by 25% if joe paid 90% for the coat wat was the original price
The annual yield per lemon tree is fairly constant at 390 pounds per tree when the number of trees per acre is 150 or fewer. For each additional tree over , the annual yield per tree for all trees on the acre decreases by 4 pounds due to overcrowding.
A. Express the yield per tree, Y, in pounds, as a function of the number of lemon trees per acre, x, where x is greater than 150.
B. Express the total yield for an acre, T, in pounds, as a function of the number of lemon trees per acre, x, where x is greater than 150.
Answer:
kbvhhjbvgivftivdtufyuffgi
Help help me please with this no links please
Answer:
N is perpendicular to M
Step-by-step explanation:
Because N and P are parallel, p is perpendicular to M, N is also perpendicular to M
what is 100 to the power 3 over 2
8 to the power 4 over 3
49 to the power 3 over 2
I've Been struggling for a while can someone please help me? Thanks.
pls help w work and explanation fast thanks
Answer:
I would choose two 12 inch pizza if I want more pizza as two 12 inch pizzas have larger circumference than one 18 inch pizza
c=πd
circumference= pie × diameter
c=2πr
circumference= 2×pie×radius
A=πr²
Area= pie×square radius
Pie= 22/7, 3.14( depends on the question, sometimes the value of pie will be given in the question)
radius= half of diameter
To find perimeter of circle use 2πr
To find area of circle use πr² or πd
Pam needs to spend less than $40 on her school supplies. She spends $12 on a
new calculator and wants to buy 7 binders. How much can Pam spend on each
binder to not spend less than $40 total?
Answer:
28
Step-by-step explanation:
Total amount of money she has=$40
Spends=12
40-12=28
She has $28 dollars left to spend on her binders.
Answer:
28
Step-by-step explanation:
you use your brain
What is the sum of 103 and h?
Answer:
The answer is 103 + h
Step-by-step explanation:
The sum of 103 and h
i.e., 103 + h
Thus, The answer is 103 + h
-TheUnknownScientist
Dr. black is standing 15 feet from a streetlamp. the lamp is making his shadow 8 feet long. he estimates the angle of elevation from the tip of his shadow to the top of the streetlamp is 50 degrees. to the nearest foot how tall is the streetlamp?
Answer:
27 feet
Step-by-step explanation:
Total distance from base of lamp to tip of shadow
15 + 8 = 23
-------------------------
tan∅ = opp/adj
opp will be the height of the lamp
adj is 23
--------------------------
tan 50 = opp/23
multiply both sides by 23
23 * tan50 = opp
Use calculator
27.4 = opp
Rounded
27 feet
Match each equation to its description
A.Circle centered at (0,-4) with radius of 3
1.(x-1)^2 + y^2=9
2.x^2+(y+4)^2=9
3. (x-1) +( y - 4)^2=3
4.(x - 1)^2+(y - 4)^2=9
5.(x - 1)^2 + (y + 4)^2=3
Which is the correct answer
A.1
B.2
C.3
D.4
E.5
Answer:
[tex]\boxed {\boxed {\sf B. \ 2: x^2+(y+4)^2=9}}}[/tex]
Step-by-step explanation:
The equation for a circle is:
[tex](x-h)^2+(y-k)^2=r^2[/tex]
Where (h, k) is the center and r is the radius.
We know that the center of the circle is (0, -4) and the radius is 3. Therefore:
h= 0 y= -4 r=3Substitute the values into the formula.
[tex](x-0)^2+(y--4)^2=(3)^2[/tex]
Solve the first parentheses.
(x-0)² = (x)²= x²[tex]x^2+(y--4)^2=(3)^2[/tex]
Solve the next parentheses.
(y--4)² = (y+4)²[tex]x^2+(y+4)^2=(3)^2[/tex]
Solve the exponent.
(3)²= 3*3=9[tex]x^2+(y+4)^2=9[/tex]
This is the finished equation, which corresponds with number 2. Choice B (2): x²+(y+4)²= 9 is correct.
can i get the answer and the explination on how to do this plz? thank uuu =) NO LINKS PLZ
Answer:
The answer is 94.5
Step-by-step:
This is actually quite simple. Although, in order to do this you will need a calculator. First, you identify which trigonomic function you will use in order to find the value of x. for this problem you need to use the COS function. The equation for this is COS67= 67/x. Because you are trying to find x you would multiply each side by x. now the equation is xCOS67= 67. because you still can't find the value of x by doing this you will need to get x by itself. To get x by itself divide each side by COS67. the equation is now x= 94/ COS67. This is where the calculator comes in. On the calculator enter 94 divided by 67 then COS function. This gives you the measure of RS.
Pls I need help thank you I would mark brainliest
uhadiashdaiushdausida
What is the sum of 103 and h?
Answer:
4.02
Step-by-step explanation:
the 4.08 and a pie got married then their did would be 4.02 because of an equalities property.
Answer:
I believe the answer is not 4.02, but... 103+h=
Step-by-step explanation:
Find the Surface Area of the figure. *
1 point
Step-by-step explanation:
A=2πrh+2πr^2
=2×22/7×3×6+2×22/7×3^2
=113.14+56.57
=169.71 m^2
Step-by-step explanation:
r = 3 cm
h = 6 cm
S. Area = 2πr² + h(2πr)= 2 × 3.14 × 3² + 6 (2 × 3.14 × 3)
= 56.52 + 113.04
= 169.56 cm²
#CMIIW