Answer:
$45.9
Step-by-step explanation:
$54 × 0.15 = $8.1 <-- because it is a discount, we will subtract this amount
$54 − $8.1 = $45.9
The number of fish in a pond has increased by 20% compared to last year write an equation to represent the number of fish last year (l) and the number of fish this year (t)
Fish = F
F + F(.2) = t
I think this is right
1, 9, 81, 729, ... what is the sequence to this
multiply by 9
1 ×9 = 9
9×9 = 81
81 ×9 = 729
Answer:
each time, you multiply the number by 9
Step-by-step explanation:
1x9=9
9x9=81
81×9=729
If you wanted to know the next number in the sequence, just multiply 729 by 9 which equals 6561.
hope this helps.
Let g(x) = |x + 1|, solve the equation g(x) = 2x + 4
Answer:
Step-by-step explanation:
g(x)= -x-1 or g(x) = x+1
if g(x) = -x-1
-x-1=2x+4
-x=2x+5
-x/2=x+5
-x/2 -x=5
-x/2-2x/2=5
-x-2x=5
-3x=5
x=5/-3
if g(x) = x+1
x+1=2x+4
x=2x+3
x/2=x+3
x/2-x=3
x/2-2x/2=3
x-2x=3
-x=3
x=3
Which graph has a domain of x>-3
25pts
Answer:
The answer is C)
Step-by-step explanation:
Because -3 is between -2 and -4
Answer:
D
Step-by-step explanation:
Domain = all the values that go into a function
The picture of your graphs is very blurry and I can't see the whole of the last graph (D), but from a process of elimination, I think D is the answer as the domains of the other graphs are:
A: x ≥ 3
B: x ≥ 5
C: x ≤ -3
Please Help I am going INSANE!
A line passes through the point (-4,9) and has a slope of 3/2.
Write an equation in slope-intercept form for this line.
Answer:
y=3/2x+15
Step-by-step explanation:
Hi there!
We are given that a line passes through the point (-4,9) and has a slope of 3/2
We want to write the equation of this line in slope-intercept form
Slope-intercept form is y=mx+b, where m is the slope and b is the y intercept
Since we are given the slope of the line already (3/2), we can plug it in as m into the equation.
y=3/2x+b
Now we must solve for b
As the equation passes through the point (-4, 9), it means that the point is a solution to the equation, meaning that it will result in a true statement when you plug its values into the equation
So let's plug the -4 as x and 9 as y into the equation
9=3/2(-4)+b
Multiply
9=-6+b
Add 6 to both sides
15=b
Substitute 15 as b into the equation
y=3/2x+15
Hope this helps!
Here is a link to a similar problem if you would like more practice: https://brainly.com/question/25508767
solve this system of equation
(b)
Each child received 3 candies and there were 7 candies left over. How many
candies were there altogether?
Answer:
10
Step-by-step explanation:
3 + 7 = 10
Since there's no exact number of children, and they ask how many candies there were altogether.
Answer:
10
Step-by-step explanation:
3+7=10
hope you understood....
If x, 30, 24 and 16 are in proportion then find the value of x.
Answer:
45
Step-by-step explanation:
x,30,24,16
since,they are in proportion
x/30=24/16
16x=720
x=720÷16
x=45
therefore the value of x is 45.
The slope of the line that passes through the points (-3,-3) and
(-9,5)?Write your answer in simplest form.
You move down 9 units and right 4 units. You end at (2, -5). Where did you start?
Answer this question by starting at the original point and moving opposite to what the question asks.
Instead of moving down 9 units, starting at (2, -5) move up 9 units.
By doing this, you are now at (2, 4)
Starting at (2,3) move to the left by 4 units.
You end up at ( -2,4)
You can also solve this problem by using addition.
To find the original add/subtract the units from the coordinates (2, -5)
To find the x coordinate: subtract 4 from 2: -2
To find the y coordinate: add 9 to -5: 4
(-2, 4)
help me plz
76° A B D с What is the measure of ZC? (Hint: just give numerical answer...
Answer:
∠ACB = 38°
Step-by-step explanation:
∠ACB is an inscribed angle while arcAB is its intercepted arc
An inscribed angle is equal to half the length of its intercepted arc
Hence, ∠ACB = 1/2 the measure of arc AB
arc AB = 76°
Hence ∠ACB = 1/2 of 76
76/2 = 38
Therefore ∠ACB = 38°
Two groups of students were asked how many pets they had. The table shows the numbers for each group: Group A 1 2 1 1 3 5 4 2 3 Group B 3 2 3 2 2 2 1 1 2 Based on the table, which of the following is true? The interquartile range for Group A students is 0. 5 less than the interquartile range for Group B students. The interquartile range for Group A students is 1. 5 more than the interquartile range for Group B students. The interquartile range for Group A students is equal to the interquartile range for Group B students. The interquartile range for Group A students is 1 more than the interquartile range for Group B students.
The interquartile range for Group A employees is 1 more than the interquartile range for Group B students is true.
Given
Data represented as a number of hours spent studying by Group A Students:
1, 2, 1, 1, 3, 3, 2, 2, 3
Arranging it in ascending order: 1, 1, 1 ,2, 2, 2, 3, 3, 3,
As a number of terms are odd,
The median will be the middle value of observation.
Which is 2.
What is the interquartile range?The interquartile range (IQR) is the range of values that resides in the middle of the scores.
The Data arranged in ascending order are; (1,1,1,2,2,2,3,3,3).
Median of (1, 1, 1, 2) = 1 [tex]\rm Q_1=1[/tex]
Median of (2, 3, 3, 3) =3 [tex]\rm Q_3=3[/tex]
Interquartile Range = [tex]\rm Q_3-Q_1[/tex] = 3- 1 =2
For Data Set 2,
The Data for group B students are: 3 2 3 2 2 2 1 1 2
Arranging in ascending order: 1,1,2,2,2,2,2,3,3
The total number of observations = 9
Median = 2
Arranging the data as : (1,1,2,2) 2,(2,2,3,3)
Median of (1,1,2,2)= Number of observations is 4 which is even;
[tex]\rm Median = \dfrac{1+2}{2}\\\\Median = \dfrac{3}{2}[/tex]
Median of (2,2,3,3) = [tex]\rm Q_3 =\dfrac{3+2}{2} = \dfrac{5}{2}[/tex]
S = Interquartile Range = [tex]\rm Q_3-Q_1=\dfrac{5}{2}-\dfrac{3}{2}=1[/tex]
The interquartile range for Group A Students =Interquartile range for Group B students + 1.
[tex]\rm D=S_1+1[/tex]
Hence, the interquartile range for Group A employees is 1 more than the interquartile range for Group B students is true.
To know more about interquartile range click the link given below.
brainly.com/question/3507706
(the
graph shows the units of power f(t) after t years
units of Power
100 + lifespan of commucation Statellite
-
30.
60
Describe the intercepts
on the graph.
2.0
years
2 4 6 8 10 hil
at x = 0, y = 100, y-intercept
meaning at 0 years, at the very beginning of functioning, the satellite had 100 units of power.
at y = 0, x = 10, x-intercept
meaning, at year 10, the satellite had 0 units of power, already out of power.
5(x+7) = 6x+1 what is X
Answer:
I have attached a photo. that might help you out.
jack got the expression 7x+1 and then wrote his answer as 1+7x is his answer an equivalment expression how do you know
The line plot shows the growth, In Inches, of Isabella's plant over 13 days. Growth of Isabella's Plant What is the total growth, in inches, of Isabella's plant? Move a number to each box to show the answer.
Line plots are used to display data elements using markers
The total growth, in inches, of Isabella's plant is [tex]4\frac{1}2[/tex] inches
How to determine the total growthFrom the line plot, the total growth can be represented as:
[tex]Total = \frac 18 * 4 + \frac 28 * 2 + \frac 38 * 3 + \frac 48 * 1 + \frac 58 * 3[/tex]
Evaluate the products
[tex]Total = \frac 48+ \frac 48 + \frac 98 + \frac 48 + \frac {15}8[/tex]
Evaluate the sum
[tex]Total = \frac{4+4+9+4+15}8[/tex]
Evaluate the numerator
[tex]Total = \frac{36}8[/tex]
Evaluate the quotient
[tex]Total = 4\frac{1}2[/tex]
Hence, the total growth, in inches, of Isabella's plant is [tex]4\frac{1}2[/tex] inches
Read more about line plots at:
https://brainly.com/question/15853311
Joe is packing 1-centimeter cubes into a prism.
What is the volume of the prism?
Show your work below.
Answer:
l x b x h= 5 x 6 x 7
210cm^3
Step-by-step explanation:
he CEO of Hot Tires compares factory production for his two factories using the data in the table shown below.
Which inference is valid?
A
Factory B produced more tires than factory A because factory B has a median of 112 and factory A has a median of 102.
B
Factory B produced more tires than factory A because factory B has a mean of 109 and factory A has a mean of 104.2.
C
Factory B has less variability in production because the range for factory B is smaller than the range for factory A.
D
Factory A has less variability in production because the range for factory A is greater than the range for factory B.
How do I solve this?
The interior angles of any triangle always sum to 180°.
In the triangle, angles C and D are labeled congruent, so the missing angle has measure
180° - 2 (6x - 5)°
This angle is supplementary to the one labeled (11x + 1)°, which means
180° = (11x + 1)° + (180° - 2 (6x - 5)°)
Solve for x :
180° = (11x + 1)° + 180° - 2 (6x - 5)°
0 = (11x + 1)° - 2 (6x - 5)°
0 = (11x)° + 1° - (12x)° + 10°
(12x - 11x)° = 1° + 10°
x° = 11°
x = 11
PLEASE HELP WITH THIS FOLLOWING!!
Step-by-step explanation:
to make it hopefully better visible :
(2a² + b³)(2a² - b³) = 4a² - b³
let's do the multiplication on the left side :
2a²×2a² - 2a²×b³ + 2a²×b³ - b³×b³ =
= 4a⁴ - b⁶
this is NOT the same as the right side of the original equation 4a² - b³
so, this is NOT an identity.
FYI
(a + b) × (a - b) is always a² - b²
[tex] {x}^{2} - 21 = 79[/tex]
plz help it's due it 2 min
[tex]\qquad \qquad\huge \underline{\boxed{\sf ᴀɴsweʀ}}[/tex]
Let's solve ~
[tex]\qquad \sf \dashrightarrow \: {x}^{2} - 21 = 79[/tex]
[tex]\qquad \sf \dashrightarrow \: {x}^{2} = 79 + 21[/tex]
[tex]\qquad \sf \dashrightarrow \: x {}^{2} = 100 [/tex]
[tex]\qquad \sf \dashrightarrow \: x = \pm\sqrt{100} [/tex]
[tex]\qquad \sf \dashrightarrow \: x = \pm \sqrt{10 \times 10} [/tex]
[tex]\qquad \sf \dashrightarrow \: x = \pm10[/tex]
15. The sides of a triangle are in the ratio of 3:8:7. If the perimeter of the triangle is 63 cm, how long is the shortest side?
Answer:
10.5cm
Step-by-step explanation:
3+8+7=18, this means that there are 18 parts assuming each part reprecents 1cm
63/18=3.5
so 1 part=3.5cm
3.5*3=10.5cm
what is the solution to the system of equations that is graphed?
Answer:
(-4,-3)
Step-by-step explanation:
Find the point where the 2 lines intersect. In this problem it is (-4,-3)
x=-4
y=-3
if x varies inversely at the cube root of y and x=1 when y =8 find y when x=3
Answer:
I don't know what this problem is but by how I see it is; the difference between 1 and 8 is 7, so 3+7=10.
Step-by-step explanation:
To see it better;
x-1, y-8 & x-3, y-10
I hope I helped you!!
Find the value of x.
A 15.0
B. 13.5
C. 9.0
D. 7.5
Answer:
D
Step-by-step explanation:
The segment inside the triangle is an angle bisector and divides the opposite side into segments that are proportional to the other 2 sides, that is
[tex]\frac{x}{7}[/tex] = [tex]\frac{15}{14}[/tex] ( cross- multiply )
14x = 105 ( divide both sides by 14 )
x = 7.5 → D
Three chairs weigh eighteen kilograms and seven hundred fifty grams. What is the weight of one chair?
Answer:
6 kilograms and 250 grams
Step-by-step explanation:
How you can solve this problem is you can divide each number by 3, 18/3 is 6, and 750/3 is 250. So, one chair weighs 6 kilograms and 250 grams.
i need help plzzz i will give brainliest
Answer:
given below
Step-by-step explanation:
Valid:
n * 5 = 5n .....1st optionn(1+1+1+2) ........4th optionn * 5 = 5n ............5th option1*n+1*n+1*n+2*n ........sixth optionInvalid:
1(n + 2n) ............3rd option0*n+0*n+0*n+2*n ...............2nd optionwhat is equivalent to 9(2−x)
Answer:
18-9x
Step-by-step explanation:
-5 = -y - 3x
Write the equation in slope-intercept form. Please help me. :)
Answer:
y = -3x + 5
Step-by-step explanation:
You want it in y = mx + b form
-5 = -y - 3x
Add y to both sides
-5 + y = -y + y - 3x
-5 + y = -3x
Add 5 to both sides
- 5 + 5 + y = -3x + 5
y = -3x + 5
Three circular arcs of radius units bound the region shown. Arcs and are quarter-circles, and arc is a semicircle. What is the area, in square units, of the region?.
Answer:
Three circular arcs of radius $5$ units bound the region shown. Arcs $AB$ and $AD$ are quarter-circles, and arc $BCD$ is a semicircle.
Step-by-step explanation:
