Answer:
Inequality Form:
r ≥ 7
Interval Notation:
[7, ∞)
Step-by-step explanation:
−1.3 ≥ 2.9 − 0.6r
Rewrite so r is on the left side of the inequality.
2.9 − 0.6r ≤ −1.3
Move all terms not containing r to the right side of the inequality.
Subtract 2.9 from both sides of the inequality.
−0.6r ≤ −1.3 − 2.9
Subtract 2.9 from −1.3.
−0.6r ≤ −4.2
Divide each term by −0.6 and simplify.
Divide each term in −0.6r ≤ −4.2 by −0.6. When multiplying or dividing both sides of an
inequality by a negative value, f lip the direction of the inequality sign.
−0.6r /−0.6 ≥ −4.2 /−0.6
Cancel the common factor of −0.6.
−4.2
r ≥ ______
−0.6
Divide −4.2 by −0.6.
r ≥ 7
The result can be shown in multiple forms.
Inequality Form:
r ≥ 7
Interval Notation:
[7, ∞)
Solve x2 + 9x + 9 = 0. (2 points)
a
quantity of negative 9 plus or minus 3 square root of 5 all over 2
b
quantity of 9 plus or minus 3 square root of 5 all over 2
c
quantity of negative 9 plus or minus square root of 117 all over 2
d
quantity of 9 plus or minus square root of 117 all over 2
Answer:
Letter A.
Step-by-step explanation:
.........................................
The solutions to the quadratic equation are:
x = (-9 + 3√(5)) / 2 or x = (-9 - 3√(5)) / 2
Option A is the correct answer.
What is an equation?An equation contains one or more terms with variables connected by an equal sign.
Example:
2x + 4y = 9 is an equation.
2x = 8 is an equation.
We have,
Quadratic equation x² + 9x + 9 = 0.
a = 1, b = 9 and c = 9
We can use the quadratic formula.
x = (-b ± √(b^2 - 4ac)) / 2a
where a, b, and c are the coefficients of the quadratic equation.
Now,
Plugging in the given values.
x = (-9 ± √(9^2 - 4(1)(9))) / 2(1)
Simplifying.
x = (-9 ± √(81 - 36)) / 2
x = (-9 ± √(45)) / 2
x = (-9 ± 3√(5)) / 2
Therefore,
The solutions to the quadratic equation x^2 + 9x + 9 = 0 are:
x = (-9 + 3√(5)) / 2 or x = (-9 - 3√(5)) / 2
Learn more about equations here:
https://brainly.com/question/17194269
#SPJ2
Express 5% as a decimal
Answer:
.05
Step-by-step explanation:
you divide 5 by 100 which makes it .05
The distance between the market and the bakery is 100 yards between the bakery and the flower shop is 150 yards and between the flower shop and the market is 76 yards do these three locations form a right triangle?
Answer:
no
Step-by-step explanation:
Malawi exports approximately 1 × 10 3 metric tons of coffee per year, and Venezuela exports approximately 3 × 10 4 metric tons of coffee per year. Approximately how many times greater is Venezuela's coffee export amount than Malawi's?
Answer:
Venezuela's export of coffee is 30 times greater than Malawi's.
Step-by-step explanation:
Malawi's exports = 1 × 10³ = = 1 × (10 × 10 × 10) = 1 × 1000 = 1000 metric tons
Venezuela's exports = 3 × 10⁴ = 3 × (10 × 10 × 10 × 10) = 1 × 10,000 = 30,000 metric tons
To find by how many times greater is Venezuela's coffee export amount than Malawi's, we will divide the former by the later.
[tex]\frac{Venezuels's\ export}{Malawi's\ export} = \frac{30,000}{1000} = 30[/tex]
Therefore, Venezuela's export of coffee is 30 times greater than Malawi's.
What’ the median?
10,3,3,12,9,13
Answer:
19
Step-by-step explanation:
itd 19 because u need to put those numbers in order from smallest to biggest and when u do that u need to get the middle number or numbers and thats 9 and 10 then add them
6x - 4x - 2 + 11x help pls
Answer13x-2
Step-by-step explanation:
6x-4x=2x+11x=13x
13x-2
Solve the system by elimination . 2x-y=10 , -3x+y=-12
Answer:
x would equal 2 and y would equal -6 so, (2,-6)
Step-by-step explanation:
Answer:
x = 2
y = -6
Step-by-step explanation:
add the equations
2x-y=10
+
-3x+y=-12
-x =- 2
x=2
substitute
2x-y=10
2(2)-y=10
-y=6
y=-6
There are 40 students in a class and 30% of these students passed their history test.
What number of these students passed the test?
What part of the percent proportion are you missing?
Answer:
12 10
Step-by-step explanation:
hurrryrryryryuwguygwefgeiuwfgiurgfiurefrfrefreferfre
Answer:
-11/3= -3.6 repeating
Step-by-step explanation:
Plz mark B R A I N L I E S T
Answer:
Exact Form:
-11/3
Decimal Form:
-3.6
Mixed Number Form:
NEGATIVE 3 AND 2 THIRDS
Step-by-step explanation:
If someone could attempt this I would appreciate it:) only if you know if that it is totally fine
Answer:
asd
Step-by-step explanation:
Answer:
a) The vertex will be at (-2, -1), and the parabola will look like a smiley face. 5 points on the parabola would be: (3, 24), (-3, 0), (2, 15), (-1, 0) and (1, 8).
b) The focus will be at (-2, 0), the directrix will be at y = -2, and the axis of symmetry will be at x = -2.
Step-by-step explanation:
a) The vertex (-2, -1) can be found by first setting the parentheses (x+2) equal to zero and solving to get the x value -2, then setting x equal to zero and solving to get the y value of -1.
The parabola will be pointing up on both ends because the equation for it is positive (given 1 multiplied by parentheses) and it has a degree of 2.
The xy table to find the points would look like this:
x | y
3 | 24
-3 | 0
2 | 15
-1 | 0
1 | 8
b) The focus is one unit above the vertex, so the y value increases by 1. The directrix is a line 1 unit below the vertex, so its y value is 1 less than the vertex's. The axis of symmetry is the same as the x value of the vertex with infinite y values.
Proceeds to rob your house
Answer:
proceeds to scroll on iphone
Complete the sentence with the word "element" or "compound."
O is a(n)
and H2O2 is a(n)
.
Answer:
O is an element (Oxygen) and H2O2 is a compound (Hydrogen Peroxide)
Select the correct answer. If you add 12 marshmallows to each of 5 bags of marshmallows, and each bag started with the same number of marshmallows, the total number of marshmallows is given by the expression 5(x + 12). Identify an equivalent expression. OA X + 12 B. 2x - 60 C. 5x + 60 D. 2x - 60
i think that the answer is B. 2x-60
The question is in the image. Thanks for your help!
Answer:
The value of x is 12 is not true.
Step-by-step explanation:
Since the line intersecting them are at a diagonal, it is not possible that the other of the lines both equal 115. Everything else in the choices is true.
What is the slope of (4,16) and (-3,2)
Answer:
When x=0, y = 8
When y=0, x = -4
Step-by-step explanation:
Answer:
M = 2
Step-by-step explanation:
there were 8 times as many blue cubes as red,in a box there were 6 red cubes.How many blue cubes were there
48
Step-by-step explanation:
Ellen plans to leave an 18 percent tip with her $23.75 lunch bill. Which of these expressions could she use to determine her total bill? Check all that apply.
Ellen plans to leave an 18 percent tip with her $23.75 lunch bill. Which of these expressions could she use to determine her total bill? Check all that apply.
You probably forgot to mention the options. After a little research, I was able to get the complete question with the mentioned options you should have mentioned. The potential complete question is:
Ellen plans to leave an 18 percent tip with her $23.75 lunch bill. Which of these expressions could she use to determine her total bill?
Check all that apply.
(1.18)(23.75) 23.75 – [(0.18)(23.75)] 23.75 + [(0.18)(23.75)] (0.18)(23.75)
Answer:
The expression [tex]23.75\:+\:\left[\left(0.18\right)\left(23.75\right)\right][/tex] will determine her total bill.
Step-by-step explanation:
Total lunch bill = $23.75
As he pans to 18% tip of the total bill, so the expression will be:
[tex]=23.75\:+\:\left(\:18\%\:\:of\:\:23.75\:\right)[/tex]
[tex]=23.75\:+\:\left(\:\frac{18}{100}\:\times \:23.75\:\right)[/tex]
[tex]=23.75\:+\:\left(\:0.18\times \:23.75\:\right)[/tex]
or
[tex]=23.75\:+\:\left[\left(0.18\right)\left(23.75\right)\right][/tex]
Therefore, the expression [tex]23.75\:+\:\left[\left(0.18\right)\left(23.75\right)\right][/tex] will determine her total bill.
Answer:
(1.18)(23.75)
23.75 + [(0.18)(23.75)]
Step-by-step explanation:
ur welcome
Expert Answer Please! Find The Length Of The Missing Side
Answer:
I would say 2, because it is diagonal from the missing side
Step-by-step explanation:
What is the x value of this equation?
Plzz hurry helpp I’ll give brainliest
Answer:
The answer is b
Step-by-step explanation:
replaced (-6,1) in B
1 = -2/3(-6) -3
1 = 12/3 -3
1 = 4-3
1 = 1
Exercice 2: Un remorqueur tire un bateau à la vitesse de 10 noeuds. La tension du câble est de 2500N, Le câble est parallèle à la trajectoire. Calculer la puissance correspondante. (Une vitesse moyenne de 1 noeud correspond à un parcours de 1 mille marin, soit 1852 m, en 1 heure. D'où : 1 noeud = 1,852 km/h = 0,514 m.S")
Répondre:
1 285 watts
Explication étape par étape:
La puissance est exprimée selon la formule;
power = travail effectué / temps
Puissance = Force * (distance / temps)
Depuis Vitesse = distance / temps
Puissance = Force * vitesse
Donné
Force = 2500N
Vitesse (en m / s) = 0,514 m / s
Obligatoire
Puissance
Remplacez la formule donnée;
Puissance = 2500 * 0,514
Puissance = 1,285Watts
Par conséquent, la puissance correspondante requise est de 1285 watts
During a basketball game, Isaias attempted 20 baskets and made 6. What percent of the baskets that he attempted did he make?
Answer:
30% hope this is rightttt
how do you do i identify the slope and the y- intercept of the line graphed or what’s the answer
A half dozen cupcakes cost 15$ . what constant of proportionality relates the number of cupcakes at total cost ?
Answer:
The constant of proportionality is 2.5 dollar per cupcake
Step-by-step explanation:
the required equation would be \(y=2.5x\).
Answer:
$2.50
Step-by-step explanation:
trust me I know I'm right
please help im being timed 4 minutes each question i will give brainliest 6th grade math
Answer:
The answer is A I and II
Step-by-step explanation:
Can someone help me solve this problem?
-1= 3 + 4×
Step-by-step explanation:
hope this helps
If the given is -1= 3 + 4x then the answer is x= -1
-1= 3 + 4x
-1-3=4x
-4=4x
To find the x divide both sides by 4.
-4/4=4x/-4
x= -1
4x+y=6
y=-4x-1
HELP ME
Answer:
No solutionStep-by-step explanation:
Given
4x+y=6 y=-4x-1Solution 1Substitute y in the first equation:
4x + (-4x - 1) = 64x - 4x =6 + 10 = 7Incorrect, therefore no solution
Solution 2Writing both equation as lines:
y = -4x + 6y = -4x - 1As we see both lines have a same slope. It means they are parallel and no intersection.
Which property of multiplication is shown by the equation 14 • y • 1 = 14y?
Group of answer choices
Associative
Distributive
Commutative
Identity
Answer:
Multiplicative identity is the property shown by this equation
Step-by-step explanation:
Multiplicative identity is explained as the product of any number and one is that number. Multiplicative identity is a property exhibited by most of the mathematical tools.
Zero and one are the numbers used to simplify equations whereas zero is called the additive identity. If we add any number with zero, it will result in the same in number.
Like that 1 is used in multiplicative identity. More simple example could be 5 ˣ 1 = 5 ., it is the multiplicative identity property
Is it true or false?
Answer:
true
Step-by-step explanation:
Brainliest?
2.8 - 0.92 mathematics
