Answer:
D
Step-by-step explanation:
graph the solution of the equation
x² + 12x + 27 ≥ 0 ?
french reasoning
it is necessary to factorize therefore to seek the roots of the polynomial
Δ = 12² - 4*1*27 = 144 - 108 = 36 = 6²
x' = (-12 + 6)/2 = -3
x'' = (-12 - 6)/2 = -9
so x² + 12x + 27 = (x + 3) (x + 9)
x - inf -9 -3 + inf
x+3 - - 0 +
x+9 - 0 + +
( ) ( ) + 0 - 0 +
x² + 12x + 27 ≥ 0 on ] -inf ; - 9 ] U [- 3 ; + inf [
on a graph
XXXXXXXXXX - 9.............-3 XXXXXXXXX
50 POINTS FOR CORRECT AWNSER!
Answer: y > x + 4
Step-by-step explanation:
First lets find a linear equation for the dividing line, in the form:
y = mx + b
We know that b is 4, since this is the y-intercept
lets use any point on the graph, I'll use (-4, 0):
y = mx + 4
0 = m(-4) + 4
-4 = -4m
m = 1
So the slope is 1. Our completed formula for the line is:
y = x + 4
Since the left side of this graph is shaded, we know it will either be > or ≥. Since the line is also dotted we know it is denoted by a simple ">" sign.
So our completed inequality equation is: y > x + 4
Hope this helped!
Answer:
[tex]\sf y > x+4[/tex]
Step-by-step explanation:
Choose 2 points on the line: (-4, 0) and (0, 4)
Let [tex]\sf (x_1,y_1)=(-4,0)[/tex]Let [tex]\sf (x_2,y_2)=(0,4)[/tex][tex]\sf slope=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{4-0}{0-(-4)}=1[/tex]
point-slope form of linear equation: [tex]\sf y-y_1=m(x-x_1)[/tex]
[tex]\implies \sf y-0=1(x-(-4))[/tex]
[tex]\implies \sf y=x+4[/tex]
Solid line : ≤ or ≥
Dashed line: < or >
Therefore as the line is dashed, and the shading is above the line,
[tex]\implies \sf y > x+4[/tex]
Please Help Me In Math
Will mark U Brainliest
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#soconfused
Answer:
[tex]\tt volume=\boxed{6}\: units^3[/tex]
Step-by-step explanation:
[tex]\tt volume=(\frac{9}{2})(\frac{4}{3} )[/tex]
[tex]\tt volume=\frac{36}{6}[/tex]
[tex]\tt volume=6[/tex]
~
Can some help me please
Answer:
Your answer is 140
Step-by-step explanation:
Rectangle:
16 x 8 = 128
Triangle:
1/2(6 x 4)
1/2(24)
24 / 2 = 12
Add areas:
128 + 12 = 140
Are Figures A and B congruent? Explain your reasoning.
Answer:
no bc the two figures need to be exactly the same size
Step-by-step explanation:
Find the supplementary and complementary angle for 49°
(PLS HELP)The diameter of a cylindrical water tank is 12 ft, and its height is 17 ft. What is the volume of the tank?
Use the value 3.14 for л, and round your answer to the nearest whole number. Be sure to include the correct unit in your answer.
Answer: The volume is equal to 1922.65.
Step-by-step explanation:
Diameter is 12 ft, height is 17 ft.
V = πr2h
V = πr2h = π·62·17≈ 1922.65
The volume of the tank is approximately 1814 cubic feet.
What is a cylinder?A cylinder is a 3-D figure that has a radius and a height.
The volume of a cylinder is given as πr²h.
Example:
The volume of a cup with a height of 5 cm and a radius of 2 cm is
Volume.
= 3.14 x 2 x 2 x 5
= 62.8 cm³
We have,
The formula for the volume of a cylinder is:
V = πr²h
where V is the volume, r is the radius, h is the height, and π is a constant equal to approximately 3.14.
We are given the diameter of the tank, which is 12 feet.
The radius is half the diameter, so:
r = 12/2 = 6 feet
We are also given the height of the tank, which is 17 feet.
Substituting these values into the formula, we get:
V = πr²h
V = 3.14 × 6² × 17
V ≈ 1814
Therefore,
The volume of the tank is approximately 1814 cubic feet.
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Helppp with this question plzz
Answer:
306
Step-by-step explanation:
There are 102 triangles, a triangle has 3 sides, each side is 1 cm. 102 x 3=306
The figures shows two parallel lines AB and DE cut by the transversals AE and BD::
AB and DE are parallel lines and AE and BD are transversals. The transversals intersect at C. Angle CAB is labeled 1, angle ABC is labeled 2, angle ACB is labeled 3, angle ACE is labeled 4, angle CDE is labeled 6, and angle CED is labeled 5.
Which statement best explains the relationship between Triangle ABC and Triangle EDC ?
Triangle, because m∠3 = m∠6 and m∠1 = m∠4
Triangle ABC is congruent to triangle EDC , because m∠3 = m∠4 and m∠1 = m∠5
Triangle ABC is congruent to triangle EDC , because m∠3 = m∠6 and m∠1 = m∠4
Triangle ABC is similar to triangle EDC , because m∠6 = m∠2 and m∠3 = m∠4
Answer:
Triangle ABC is similar to triangle EDC because Measure of angle 3 equals measure of angle 4 and Measure of angle 1 equals measure of angle 5
Step-by-step explanation:
Answer:
D) Triangle ABC is similar to triangle EDC , because m∠6 = m∠2 and m∠3 = m∠4
Step-by-step explanation:
trust me on this one ;)
Please Help!!!
simplify (x-4)(6x^2+2x-1)
Answer:The solution is in the attached file
Step-by-step explanation:
The perimeter of a rectangular pool is 246 m.
If the width of the pool is 52 m, what is its length?
ANSWER AS SOON AS POSSIBLE
Marty bought Dr. Pepper in 2000 that was $4 for a case and now it is $7 a case. What is the percent increase of the Dr. Pepper?
Answer:
75%
Step-by-step explanation:
Change in price =7-4 (new-original)
Percent is (change/orginal) 3/4
.75x100=75%
Answer:75% increase
Step-by-step explanation:
HELP ME:(
When a solid is enlarged by a scale factor greater than 1, the volume of the new solid will be ___________ the volume of the original solid. When a solid is reduced by a scale factor between 0 and 1, the volume of the new solid will be _________ the volume of the original solid.
Answer:
blank one: greater than blank two: less than
Step-by-step explanation:
1
Ruth needs 5
quarts of oil to change
4
1
the oil in her car. She has 2
quarts in
2
, 1
one bottle and 1
quarts in another. How
4
many more quarts of oil does Ruth need
to change the oil in her car?
Answer:
Ruth needs 5quarts of oil, she has 2quarts in one bottle and 1 quart in another.
therefore:
2+1=3
5-3=2
Ruth needs 2 more quarts.
Can some Please help me with this please please :(((( (The Image is In The Question)
When Hana goes to the mall, she always buys the same lunch and also buys some books. The table shows the number of books she buys, x, and the total amount of money she spends, y.
If this data were displayed in a scatter plot, select ALL statements that would be true about a good trend line summarizing the data.
SELECT GROUP OF ANSWER CHOICES
A. The y-intercept approximates the average cost of one book.
B. The y-intercept approximates the cost of Hana's lunch.
C. The slope approximates the cost of Hana's lunch.
D. The trend line goes through the origin.
E. The slope approximates the average cost of one book.
Which of the following equations will form a system with the same solution as the above set of equations?
Select all that apply.
Answer:
x=-3 and 2x-3y=-12
Step-by-step explanation:
The solution to lines 1 and 2 is (-3, 2)
The only lines that intersect that point are x=-3 and 2x-3y=-12
can you help me understand this
Answer:
For the small boxes on the side, drag the one that you think is correct to the grey spaces. Your supposed to enter the fraction in the simpliest form
Step-by-step explanation:
The total cost of the dinner is found by adding the two prices together. Then this sum is multiplied by 1.05, which is 100% + 5%, to get a cost of $11.72.
Answer:
2( 4 + 2X) = 3x + 4
8 + 4x = 3x + 4
8 + 4x - 3x - 4 = 0
x + 4 = 0
x = -4
Step-by-step explanation:
on a map, memphis, tennessee, and jackson, mississippi, are 5 inches apart. the distance between the cities is actually 210 miles. what scale was used to create the map?
Answer:1 inch = 42 miles
Step-by-step explanation:
What value belongs next to the 1 in the table? What does it mean in this context?
Answer:
The number next to 1 is 2.5.
It means 2.5 dimes are in 1 quarter (1 quarter = 2.5 dimes)
Step-by-step explanation:
The value next to 1 in the table above = number of dimes we have in 1 quarter.
Let the value next to 1 be "x".
That is:
1 quarter = x dimes
If 4 quarters = 10 dimes, then,
Cross multiply to find, how many dimes, x is equal to.
Thus:
1*10 = 4*x (cross multiplication)
10/4 = 4x/4 (dividing both sides by 4)
2.5 = x
The number next to 1 is 2.5.
It means 2.5 dimes are in 1 quarter (1 quarter = 2.5 dimes)
Miguel measured a house and its lot and made a scale drawing. The backyard, which is 40 feet wide in real life, is 20 inches wide in the drawing. What scale did Miguel use?
1 inch :
feet
Answer:
1 inch:2 feet
Step-by-step explanation:
A soccer coach plans to order more shirts for her team. Each shirt costs $9.85. She has $77 left in her uniform budget. What are the possible number of shirts she can buy?
A soccer coach plans to order more shirts for her team so Each shirt costs $9.85 and She has $77 left in her uniform budget. The possible number of shirts she can buy is 7 shirts.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
Given that A soccer coach plans to order more shirts for her team. Each shirt costs $9.85 and She has $77 left in her uniform budget. WE need to find the possible number of shirts she can buy.
Therefore,
77/9.85 = 7.88888
We an’t have part of a shirt so, she can buy 7 shirts.
Hence, A soccer coach plans to order more shirts for her team so Each shirt costs $9.85 and She has $77 left in her uniform budget. The possible number of shirts she can buy is 7 shirts.
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Please help!
Find the area of the kite.
The coordinates of the three vertices of a square are shown in the figure. What are the coordinates of the fourth vertex?
Answer:
(-2, 1)
Step-by-step explanation:
The 4th point must be vertically above (-2, -4) and horizontally to the left of (3, 1).
Its coordinates are (-2, 1).
Elena and her mom are on a road trip outside the United States. Elena sees this road sign (Maximum 80). Elena's mom is driving 75 miles per hour when she gets pulled over for speeding. The police officer explains that 8 kilometers is approximately 5 miles. If the speed limit is 80 kilometers per hour, and Elena's mom was driving 75 miles per hour, was she speeding? How many kilometers per hour was she OVER THE SPEED limit of 80kph?
Given :
Maximum speed limit, s = 80 km/hr
Elena's mom is driving at u = 75 mph.
The police officer explains that 8 kilometres is approximately 5 miles.
To Find :
Was she speeding and by how many km/hr.
Solution :
It is given that 8 km = 5 miles
So,
[tex]1\ miles=\dfrac{8}{5}\ km\\\\1\ miles = 1.6\ km[/tex]
Now, Speed of Elena's mom in km/hr is :
[tex]Speed =\dfrac{75\ miles\times\dfrac{1.6\ km}{1\ miles} }{1 \ hour}\\\\Speed = \dfrac{120\ km}{1 \ hour}\\\\Speed = 120\ km/hour[/tex]
Yes, she is over speeding and by ( 120 - 80 ) = 40 km/hr.
Hence, this is the required solution.
Elena's mom was driving at 120 km per hour, with which she was effectively speeding, exceeding the allowed speed by 40 km per hour.
To determine if Elena's mom was speeding and to determine how many kilometers per hour was she over the speed limit of 80kph the following calculation should be performed:
5 = 8 75 = X 75 x 8/5 = X 120 = X
Therefore, Elena's mom was driving at 120 km per hour, with which she was effectively speeding, exceeding the allowed speed by 40 km per hour.
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zachary has six times as many nickels as dimes and four times as many quarters as dimes. zachary has a total of ninety-nine nickels, dimes, and quarters. The total value of the coins is $12.60. How many of each coin does he have?
Answer:
nickels: 54dimes: 9quarters: 36Step-by-step explanation:
The ratio of nickels to dimes to quarters is given as ...
N : D : Q = 6 : 1 : 4
The total number of ratio units is 6 +1 +4 = 11. The total number of coins is given as 99, so each "ratio unit" must represent 99/11 = 9 coins. That is, the actual coin count ratios are ...
N : D : Q = 54 : 9 : 36
Zachary has 54 nickels, 9 dimes, and 36 quarters.
__
Check
The value of the coins is ...
$0.05 × 54 +$0.10 × 9 +$0.25 ×36 = $2.70 +0.90 + 9.00 = $12.60
a grocery store sells a 6-pack of bottled water for $3.79, a 9- pack for $4.50, and a 12-pack for $6.89. which package cost the least per bottle explain your reasoning ?
Answer:
Cost per bottle. Therefore cost/bottle. Set 1: 3.79/6=.63 Side note, don’t forget to round each time to the nearest cent. Set 2: 4.50/9=.50 Set 3: 6.89/12=.57 The second package (9-pack for $4.50) is the costs least per bottle.
Step-by-step explanation:
En el grupo
de prmero A hay28 alumnos, 17 de ellos levantaron la mano¿Qué porcentaje del 2 puntos
grupo
votó?
*
60%
h
0 36%
65%
69%
Solve for T
V = x + at
Answer:
t=V‒x/a
Step-by-step explanation:
V=x+at (add ‒x in both side)
V‒x=x+at‒x
V‒x=at
V‒x/a=at/a
V‒x/a=t
so the formula is t=V‒x/a
Need help on this question
Answer:
Step-by-step explanation: