Answer:
3/10 or 30%Step-by-step explanation:
Given the segments:
1, 3, 5, 7, 9Number of combinations of 3 line segments out of 5:
5C3 = 5!/3!2! = 10Triangle can be formed if only any side is smaller than the sum of the other two sides.
Possible triangles:
(3,5,7), (3,7,9) and (5,7,9) - the number is 3Probability:
Favorable outcomes/total outcomes = 3/10 or 30%Hector spent $40.75 for 2 DVDs that cost the same amount. The sales tax on his purchase was $4.15. Hector also used a coupon for $1.00 off his purchase. How much did each DVD cost?
Answer:
36.75 + 1 = 37.75 - 2.15 = 35.60/2 = 17.80
In winter, the price of apples suddenly went up by $0.75 per pound. Sam bought 3 pounds of apples at the
new price for a total of $5.88.
Answer:
original price per pound = $1.21
Step-by-step explanation:
In winter, the price of apples suddenly went up by $0.75 per pound. Sam bought 3 pounds of apples at the new price for a total of 5.88
write an equation to determine the original price per pound (p)
find the original price per pound
Let
p = original price per pound
3p = original price for 3 pounds
Additional increase = 0.75
Number of pounds = 3
3p + 0.75(3) = 5.88
3p + 2.25 = 5.88
3p = 5.88 - 2.25
3p = 3.63
p = 3.63/3
p = 1.21
original price per pound = $1.21
When 3 is divided by 9 what is the denominator?
Answer:
the equation is 9/3, so the denominator is the number under the line, so the denominator is 3.
Answer:
the denominator is 3! look up a division diagram to help u learn the terms of division.
Step-by-step explanation:
[tex]3=\frac{x}{3.3}[/tex]
what is x?
the correct answer is 9.9
Step-by-step explanation:
3 × 3.3 = 9.9
x = 9.9 ÷ 1 = 9.9
x = 9.9
Answer:
[tex]3 = \frac{w}{3.3} \\ [/tex]
Multiplying both sides of the equation by 3.3, we get
[tex]3 \times 3.3 = \frac{w}{3.3} \times 3.3 \\ 9.9 = w \\ \boxed{w = 9.9}✓[/tex]
★ w=9.9 is the right answer.3x2- 4x + 2 = 0
Discriminant to determine
Answer:
The answer is 2+/- 2 over(/) 3
Step-by-step explanation:
You use the discriminant formula :)
Use the Distributive Property to simplify the expression. 8(12+a)
HELP ME PLEASE I BEG OF YOU
I'm just a kid trying not to fail math
Answer:
96.8a thats what I got
Step-by-step explanation:
hope this helps
9. Jamie ha ahorrado $ 42 del dinero de su asignación para comprar libros. Si compra 5 libros a d dólares por libro, le quedarán 42 5d de su asignación. ¿Cuánto le queda si los libros cuestan $ 3.50 cada uno?
Answer:
$24.50
Step-by-step explanation:
Jamie has saved $ 42 of his allowance money to buy books. If you buy 5 books at d dollars per book, you will have 42- 5d left of your allowance. How much is left if the books cost $ 3.50 each?
We have the equation
42 - 5d = Amount of Allowance left
d = 3.50
Hence:.42 - 5 × 3.50
= $42 - 17.5
= 24.5
how can you tell that the slope of the line through (2,2) and (-3,5) is negative without calculating
I NEED HELPPPPPPPPP AHHHHHHHHHHHHHHHHHHHH
please TwT
Answer:
-3,3
Step-by-step explanation:
there are two space of distance from A to the reflected line
two spaces above the reflected line is -3,3
There are twice as many boys as girls in Ms. Lyn's chorale group. When 3 girls join the chorale, the new group has 24 members. How many boys and girls were there in the original group?
Answer:6tuytuyttyty
Step-by-step explanation:
Pls answer the four questions if they are true or false!!
Thanks!!
Answer:
..........
Step-by-step explanation:
False
False
True
True
Taylor got an Ulta gift card that had $20 on it. If she bought 3 lipsticks at $2.99 each
and a make-up bag for $4.59, how much money is left on her Ulta gift card?
$6.44 is left
Hope this helps! :D
Answer:
$6.44
Step-by-step explanation:
3x2.99=8.97
8.97+4.59=13.56
20.00-13.56=6.44
Parallelograms (5x+4). 59
Answer:
59 = (5x + 4)
x = 11
Step-by-step explanation:
59 = (5x + 4)
5x + 4 = 59
5x = 59 - 4
5x = 55
x = 55/5
x = 11
NEED HELP ASAP! ill give brainliest
Answer: (0,3) 2. no
Step-by-step explanation:
help me -30=5(x+1)−30=5(x+1) x=
Answer:
X=-7
Step-by-step explanation:
Divide then subtract to get x by itself
-30=5(x+1)
Divide each side by 5= -30/5=5(x+1)/5
-30=x+1
-6=x+1
-6-1=x+1-1 Subtract one to get x by itself
-6-1=x+1-1 (cross out both x's.
-6-1=x
Hope this helped
whats the slope of the line and whats in on the graph?
Answer:
-1 is the slope
Step-by-step explanation:
The rise is up 1 and the run is sideways 1.
Hope it helps!
PLEASE HELP
James had a collection of 500 Matchbox cars at the beginning of the summer.
After the summer, James had traded some of his Matchbox cars and now he has only 485 Matchbox cars.
What is the percent decrease of his Matchbox car collection?
What is the value of
[tex]2 {x}^{ - 2} {y}^{ - 2} [/tex]
for x = 3 and y = -2?
A.
[tex] \frac{1}{18} [/tex]
B. 72
C.
[tex]2 {( - 6)}^{ - 4} [/tex]
D. 1/648
1. What are the coordinates of the solution to this linear system
A. (2.1)
B. (-2,1)
C. (-1,2)
D. (2,-1)
pid 2. The perimeter of triangle GHI is 40 cm. If both triangles are similar, then what is the length of JT. 15 cm 15 cm Wool 10 cm G
Write your answer below:
In ΔPQR, r = 4.9 cm, ∠R=21° and ∠P=104°. Find the length of p, to the nearest 10th of a centimeter.
Answer:
Step-by-step explanation:
The answer is the length of p, to the nearest 10th of a centimeter is 13.3 cm .
What is the law of sines ?
he Law of Sines (or Sine Rule) is very useful for solving triangles.
According to the law ,
When we divide side a by the sine of angle A
it is equal to side b divided by the sine of angle B
and also equal to side c divided by the sine of angle C
[tex]\rm \dfrac{a}{sinA} = \dfrac{b}{sinB} = \dfrac{c}{sinC}[/tex]
It is given that in Δ PQR
r = 4.9 cm
angle R = 21
angle P =104
Length of p needs to be found
Therefore by using above equation
[tex]\rm \dfrac{r}{sinR} = \dfrac{p}{sinP}[/tex]
[tex]\rm \dfrac{4.9}{sin21^{0}} = \dfrac{p}{sin104^{0}}[/tex]
p= 13.3 cm
Therefore the length of p, to the nearest 10th of a centimeter is 13.3 cm .
To know more about law of sines
https://brainly.com/question/17289163
#SPJ2
PLZ HELP!!!
multiply the polynomials.
(x+3)(x^2-6x+5)
A. x^3-3x^2-13x+15
B. x^3-6x^2+5x+15
C. x^3-6x^2-13x+15
D. x^3-3x^2+5x+15
the answer is A
:D :D :D :D :D :D :D
Zackary says that point c has the same location as point a because both points have the same coordinates.is Zachary right?explain why or why not
Answer:No
Step-by-step explanation:
No because A was (3,4) and point C was (4,3).
I hope this helps !!
help with this question
Answer: yes y=12 is a solution to y over -6
Step-by-step explanation: you simply have to put 12 in for y. 12 divided by -6 = -2.
[tex] \frac{12}{ - 6} = - 2 [/tex]
[tex] - \frac{2}{1} = - 2[/tex]
Therefore, y = 12 is the correct solution.
We get -2/1 from 12/-6 by diving the top and bottom by 6.
12x + 15y = 9
−12x − 18y = −6
PLEASE I NEED EXPLANATION THANKS
Answer:
x = 2
y = –1
Step-by-step explanation:
We need to solve this system of equations for the point where the two linear equations intersect. That means solving for one variable, then using that to solve for the other. But, I'm looking at this, and...
Well, I see an easy way to isolate y right now! See how one equation has 12x and the other has –12x? Adding the two equations together will cancel them out!
That gives us this equation:
12x – 12x + 15y – 18y = 9 – 6 — adding the expressions together
15y – 18y = 9 – 6 — cancel out the 12x
–3y = 3 — simplify the equation
–3y ÷ 3 = 3 ÷ 3 — divide by 3 to isolate y
y = –1 — simplify the equation
Now that we have our y-value, we can substitute into the equation and solve for x. I'm substituting into both to make sure y = –1 is part of the solution point (on a coordinate plane, this is where the functions intersect).
12x + 15y = 9 — original equation
12x + 15(–1) = 9 — substitute –1 for y
12x – 15 = 9 — simplify
12x – 15 + 15 = 9 + 15 — add 15 on both sides to isolate 12x
12x = 24 — simplify
12x ÷ 12 = 24 ÷ 12 — divide by 12 on both sides to isolate x
x = 2 — simplify
That's one equation. Let's check the other with these values to make sure (2, –1) is the solution point.
–12x – 18y = –6
–12(2) – 18(–1) ≟ –6
18 – 24 ≟ –6
–6 = –6 ✓
Yep, this is the solution we're looking for!
Hope this helps you understand the concept! Have a great day!
-2 (e+6)=-6 PLEASE HELP !!!!
Answer:
e=-3
Step-by-step explanation:
-2(e+6)=-6
/-2 /-2
e+6=3
-6 -6
e=-3
hope this helps have a blessed day :)
Which best describes a standard thermometer...
EXPLAIN
Rational
Real Number
Whole Number
Integer
Answer:
inteager
Step-by-step explanation:
temperature can express both positive and negative
In a school, lessons are 55 minutes long. a) A maths lesson starts at 9:20am. What time does it end? b) A science lesson ends at 2:15pm. What time does it start?
Answer:
A. It ends at 10:15am
B. It starts at 1:20pm
Explanation:
A. Add an hour then subtract 5 minutes
B. Subtract an hour then add 5 minutes
Answer:
a- 10:15 b- 1:20
Step-by-step explanation:
a- there are 40 min remaining in the hour. Subtract that from 55, you get 15. That means the time is 10:15.
b- There are 15 min in the hour, subtract that from 55. You get 40, the time is 1:20
Please Help me!
If the sales-tax rate is 8%, how much will the total cost of a purchase of $200 be?
Answer:216
Step-by-step explanation:
because 200 times 8 percent = 16 so then you add 16 too 200 and get 216.
Can you plz help me with this question thx :)
Answer:
43.988 because it is the number of the math equals math equation and then I did it.
Answer:
In this case the numbers would be 13.48 because youre taking the circumfrence out of 14
Step-by-step explanation: