Answer x=2.7
Step-by-step explantion
x^2 +x-20=0
combine like terms.. so x^2 AND X TURN INTO X^3
X^3-20=0
THE SUBTRACT 20 FROM EACH SIDE
X^3=20
x=2.7
:)
20 - 4 { 20÷ 7 ( 7 - 3 )}
20 -4 { 20÷ 7 ( 7 - 3 )}
20 -4 { 20 ÷ 7 * 4 }
20 - 4 { 2.85 * 4 }
16 * 11.42
182.85
5(3 + 4) − 2 = 7 − 3(−2 + 11
Answer: what I understood from the question that you want this side and the other side so the fust side equals 33 and the second side after the equal side equals -20 so 33 = -20
Step-by-step explanation: I hope it is correct .
Sandra is setting up a party. She has 7 bowls to put
candy in. If she wants to put 1/5 of a bag of candy in
each bowl, how many bags of candy will she use?
Answer:
7/5 = 1 2/5
Step-by-step explanation:
You need to multiply the number of bowls filled, by the amount of candy that goes into each bowl.
There are 7 bowls to fill and 1/5 of a bag of candy goes in each bowl.
7 * 1/5 = 7/5
This works out to 7/5 or 1 and 2/5.
A garden has an area of 286ft. It’s length is 9ft more than it’s width. What are the dimensions of the garden?
Answer:
13
Step-by-step explanation:
x × (x + 9) = x² + 9x = 286x² + 9x - 286 = 0(x - 13)(x + 22)x = 13 or -22Since you cannot have negative length, it’s 13The half life of radium is 1690 years. if 80 grams are present now, how much will be present in 830 years
Answer:
A(t) = amount remaining in t years
= A0ekt, where A0 is the initial amount and k is a constant to be determined.
Since A(1690) = (1/2)A0 and A0 = 80,
we have 40 = 80e1690k
1/2 = e1690k
ln(1/2) = 1690k
k = -0.0004
So, A(t) = 80e-0.0004t
Therefore, A(430) = 80e-0.0004(430)
= 80e-0.172
≈ 67.4 g
Step-by-step explanation:
Select the expressions that are equivalent to 12x - 6.
A. -6(2x-1)
B. 6(2x-1)
C. 6x(2-1)
D. -6x(2x-1)
E. -6(-2x+1)
F. 6x(-2x+1)
Answer:
B and E
Step-by-step explanation:
A.
-6(2x - 1)
Distribute the -6.
-12x + 6
B.
6(2x - 1)
Distribute the 6.
12x - 6
C.
6x(2 - 1)
Subtract inside parenthesis.
6x(1)
Multiply.
6x
D.
-6x(2x - 1)
Distribute the -6x.
-12x² + 6x
E.
-6(-2x + 1)
Distribute the -6.
12x - 6
F.
6x(-2x + 1)
Distribute the 6x.
-12x² + 6x
Find the value of |-4 + 3| · 8.
Answer:
20
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SolveAny negative number added to a positive number always brings you further to the left, which is considered the negative zone. It's more like subtracting in a different way. That said, let's make the equation.
[tex]-4 = -4[/tex]
Now, multiply 3 by 8.
[tex]3 * 8 = 24[/tex]
Add negative 4, meaning subtract 4 in a dynamic way.
[tex]|-4 + 24~| = 20[/tex]
Find an equation for the line that passes through the points (-6, 3) and (6, -6).
Answer:
[tex]y = -\frac{3}{4}x-\frac{3}{2}[/tex]
Step-by-step explanation:
First, calculate the slope of the line:
[tex]m = \frac{y_2-y_1}{x_2-x_1}\\m = \frac{(-6) - 3}{6 - (-6)}\\m = \frac{-9}{12}\\m = \frac{-3}{4}[/tex]
Next, calculate the y-intercept:
Choose any point on the line.
[tex](-6,3)[/tex]
Solve for [tex]b[/tex].
[tex]y = mx + b\\b = y - (mx)\\b = 3 - (\frac{-3}{4} * -6)\\b = 3 - \frac{9}{2}\\b = \frac{-3}{2}[/tex]
Finally, create the equation:
[tex]y = -\frac{3}{4}x-\frac{3}{2}[/tex]
Can someone please help me with this??
Answer:
m angle 2 = 60° (vertically opposite)
m angle 3 = 120° (linear pair)
m angle 1 = 120° (linear pair)
Candace made donuts and could package 11 of them in each box if she needs 3908 donut how many full boxes would she have?
Answer:
355 full boxes. 356 if you don't count the not full one that she would need.
Step-by-step explanation:
3908/11 = 35.272727
What is the value of the 8 in the number below? 475.082
A 8 hundreds
B 8 tenths
C 8 hundredths
D 8 tens
Answer:
The answer would be C. 8 hundredths.
I need help with this
please help what is the answer am I correct
Answer:
natural numbers 1,2,3,4,5,6..........
Step-by-step explanation:
hope it helps you<3Answer:
yes you are
hope this helps
Inequalities
Which is the graph of the system x + 3y > -3 and y < 1/2x +1?
Answer:
the 4th graph.
Step-by-step explanation:
by solving for Y in the first equation, we get the y-intercept of -1 and the second equation has a y-intercept of 1. 4th graph is the only graph with those 2 intercepts
may i have help with this problem please
Answer: 9
Step-by-step explanation:
Past the point of 12 there are a total of 9 plants represented.
Thaddeus wants to cover an area around a pond with natural slate stone. If the cost of the slate is $6.50 per square foot, how much will it cost to surround the pond?
Answer:
Cost of slate path using π: $980.18 (nearest cent)
Cost of slate path using π = 3.14: $979.68
Step-by-step explanation:
Formula
Area of a circle = πr² (where r is the radius)
First, calculate the area of the slate path by subtracting the area of the pond from the area of the larger circle.
Area of larger circle = π · 8² = 64π ft²
Area of pond (smaller circle) = π · 4² = 16π ft²
⇒ area of slate path = 64π - 16π = 48π ft²
If the cost of the slate is $6.50 per ft² then,
Cost of slate path using π:
⇒ 48π × $6.50 = $980.18 (nearest cent)
Cost of slate path using π = 3.14:
⇒ 48 × 3.14 × $6.50 = $979.68
Complete this sequence -5,-12,-19,-26,[??],[??]
Answer:
-33, -40
Step-by-step explanation:
If you figure out the patern here, the patern is (-7).
So I did (-26-7) which got me -33, and then did, (-33-7) which got me -40.
Hopefully this helps :)
can someone help me with this :(
Answer:
f#### no b#### how bout you get some brains and figure it out on your own. N####
Can someone explain why this equation equals 11?
Answer:
bc it dose
Step-by-step explanation:
½ z = 6
im giving 30 points so pls help !! also this is missing hw lol
What is the area of this figure?
In the table, Pattern A uses the rule "add 3" and Pattern B uses the rule "add 9." Pattern A 0 3 6 9 12 Pattern B 0 9 18 27 36 Which statement is true? Every term in Pattern B is 6 more than the corresponding term in Pattern A. Every term in Pattern B is 13 the corresponding term in Pattern A. Every term in Pattern B is 3 times the corresponding term in Pattern A. Every term in Pattern B is 9 times the corresponding term in Pattern A.
Answer:
Step-by-step explanation:
this one was hard for my daughter I still don’t know
Answer: Every term in Pattern B is 3 times the corresponding term in Pattern A.
Step-by-step explanation:
The amount of money Emily spends, after r rides, at a carnival
is modeled by the function y = 8r + 20
Select all the ordered pairs that satisfy the function.
A (15, 140)
B (12, 96)
C (11, 108)
D (- 9, 128)
The coordinate of a function are written in the form (x, y). The coordinates (11, 108) and (15, 140) satisfy the function
Coordinate of a functionThe coordinate of a function are written in the form (x, y)
Given the amount of money Emily spends, after r rides, at a carnival
is modeled by the function y = 8r + 20
We are to determine the coordinate that satisfies the function
For the coordinate (15, 140)
If r = 15, then
y = 15(8) + 20
y = 140
Hence the coordinate (15, 140) satisfy the function
For the coordinate (11, 108)
If r = 11, then
y = 11(8) + 20
y = 108
Hence the coordinate (11, 108) satisfy the function
Learn more on function here: https://brainly.com/question/25638609
#SPJ1
5•3^n
Answer choices are:
A: 15,30,45,60
B: 5,15,45,135
C: 0,15,45,135
D: 15,45,135,405
94 POINTS!!!!!! EASY STATS QUESTION. SHOW WORK
A jar contains 4 marbles - 3 Red & 1 Blue. Two marbles are drawn with replacement after each draw. What is the probability that the same color marble is drawn twice?
Answer: hii :)
5/8Step-by-step explanation:
The probability of a red marble being drawn in both turns = 9/16, and the probability of a white marble being drawn in both turns = 1/16. So, the total probability = (9/16) + (1/16) = 10/16 = 5/8.
Hopefully this helps you
- Matthew
Answer:
[tex]\sf \dfrac58[/tex]
Step-by-step explanation:
Given:
3 red marbles1 blue marblesTotal marbles = 4[tex]\sf Probability\:of\:an\:event\:occurring = \dfrac{Number\:of\:ways\:it\:can\:occur}{Total\:number\:of\:possible\:outcomes}[/tex]
[tex]\implies \sf \textsf{P(red marble)}=\dfrac{3}{4}[/tex]
[tex]\implies \sf \textsf{P(blue marble)}=\dfrac{1}{4}[/tex]
As the marbles are replaced:
[tex]\implies \sf \textsf{P(red marble) and P(red marble)}=\dfrac{3}{4} \times \dfrac{3}{4}=\dfrac{9}{16}[/tex]
[tex]\implies \sf \textsf{P(blue marble) and P(blue marble)}=\dfrac{1}{4} \times \dfrac{1}{4}=\dfrac{1}{16}[/tex]
Therefore:
[tex]\implies \sf \textsf{P(red and red) or P(blue and blue)}=\dfrac{9}{16}+\dfrac{1}{16}=\dfrac{10}{16}=\dfrac58[/tex]
19. The product of two consecutive integers is 5 more than three times the larger
1. Dwayne has 10 blue shirts and 12 red shirts. What's the ratio of blue shirts to red shirts that
Dwayne has?
Answer:
5 : 6
Step-by-step explanation:
the ratio of
blue : red
= 10 : 12 ( divide both parts by 2 )
= 5 : 6 ← in simplest form
What is bigger 0.38 or 9/25?
Answer:
.38
9/25 is .36 as a decimal
Step-by-step explanation:
The playlist consists of 21 songs by The Working Mamas, 12 songs
by Chef Mo Cheese, 36 songs by The Snippers, 54 by Lucy and
The Jungle Cats, and 27 by Nuestra Paradise.
Complete the probability model. Don't forget to write
each answer as a percent.
artist
The Working
Chef Mo
The
Lucy and the
Nuestra
Mamas
Cheese
Snippers
Jungle Cats
Paradise
Total
probability
14 %
Answer:
what???
Step-by-step explanation:
im not sure what you are talking about
What is the perimeter of Building 1?
Answer:
you will need a map scale