Answer:
-16
Step-by-step explanation:
t(3)= 3²-2
= 7
s(t(3)) = -2×7-2
= -14-2
= -16
HELP ASAP PLEASE!!!! :(
Answer:
x = 1 and y = -8/3
step-by-step explanation:
In order to solve this, insert equation 1 into 2solve for x
[tex]\sf 6x+3\left(\frac{4}{3}x-4\right)=-2[/tex]
[tex]\sf 6x+4x-12=-2[/tex]
[tex]\sf \rightarrow 10x = -2 +12[/tex]
[tex]\sf \rightarrow 10x = 10[/tex]
[tex]\sf \rightarrow x = 1[/tex]
solve for y
[tex]\hookrightarrow \sf y = \frac{4}{3} x-4[/tex]
[tex]\hookrightarrow \sf y = \frac{4}{3} (1)-4[/tex]
[tex]\hookrightarrow \sf y=-\frac{8}{3}[/tex]
Answer:
x=1 and y=-8/3
Step-by-step explanation:
The easiest way to solve this is by substitution because the first equation is already in slope-intercept form.
First, take y= 4/3x -4 and substitute it into the second equation as follows: 6x + 3(4/3x -4) = -2
Next, simplify that equation to get 6x + 12/3x -12 = -2.
After that, combine all like values: 10x - 12 = -2.
Finally, add 12 to each side and divide by 10 to get x=1.
To find the y-value, substitute x=1 into either equation and solve for x (I'm choosing the first equation). y= 4/3(1) -4
In order to make simplifying this easier, I find that -4 = -12/3.
Finally, simplify: y= 4/3 - 12/3 = -8/3.
The solution to the system of equations is (1, -8/3), or x=1 and y=-8/3.
simplify (6x^2-7x-5)/(3-x)
Answer:
Simplify —
3
Equation at the end of step
1
:
5
(((6 • (x2)) - 7x) - —) - x
3
STEP
2
:
Equation at the end of step
2
:
5
(((2•3x2) - 7x) - —) - x
3
STEP
3
:
Rewriting the whole as an Equivalent Fraction
3.1 Subtracting a fraction from a whole
Rewrite the whole as a fraction using 3 as the denominator :
6x2 - 7x (6x2 - 7x) • 3
6x2 - 7x = ———————— = ——————————————
1 3
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
STEP
4
:
Pulling out like terms
4.1 Pull out like factors :
6x2 - 7x = x • (6x - 7)
Adding fractions that have a common denominator :
4.2 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
x • (6x-7) • 3 - (5) 18x2 - 21x - 5
———————————————————— = ——————————————
3 3
Equation at the end of step
4
:
(18x2 - 21x - 5)
———————————————— - x
3
STEP
5
:
Rewriting the whole as an Equivalent Fraction :
5.1 Subtracting a whole from a fraction
Rewrite the whole as a fraction using 3 as the denominator :
x x • 3
x = — = —————
1 3
Trying to factor by splitting the middle term
5.2 Factoring 18x2 - 21x - 5
The first term is, 18x2 its coefficient is 18 .
The middle term is, -21x its coefficient is -21 .
The last term, "the constant", is -5
Step-1 : Multiply the coefficient of the first term by the constant 18 • -5 = -90
Step-2 : Find two factors of -90 whose sum equals the coefficient of the middle term, which is -21 .
-90 + 1 = -89
-45 + 2 = -43
-30 + 3 = -27
-18 + 5 = -13
-15 + 6 = -9
-10 + 9 = -1
-9 + 10 = 1
-6 + 15 = 9
-5 + 18 = 13
-3 + 30 = 27
-2 + 45 = 43
-1 + 90 = 89
Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored
Adding fractions that have a common denominator :
5.3 Adding up the two equivalent fractions
(18x2-21x-5) - (x • 3) 18x2 - 24x - 5
—————————————————————— = ——————————————
3 3
Trying to factor by splitting the middle term
5.4 Factoring 18x2 - 24x - 5
The first term is, 18x2 its coefficient is 18 .
The middle term is, -24x its coefficient is -24 .
The last term, "the constant", is -5
Step-1 : Multiply the coefficient of the first term by the constant 18 • -5 = -90
Step-2 : Find two factors of -90 whose sum equals the coefficient of the middle term, which is -24 .
-90 + 1 = -89
-45 + 2 = -43
-30 + 3 = -27
-18 + 5 = -13
-15 + 6 = -9
-10 + 9 = -1
-9 + 10 = 1
-6 + 15 = 9
-5 + 18 = 13
-3 + 30 = 27
-2 + 45 = 43
-1 + 90 = 89
Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored
Final result :
18x2 - 24x - 5
——————————————
3
Step-by-step explanation:
help me please do it guys
Step-by-step explanation:
Angle of four sides of rhombus is 360
125+p=360
p=360-125
p=235
hope this helps you
have a good day.
help me pleaseeeeeeeeee
Answer:
10 and 11, The square root of 109 is approximately 10.4 and the two consecutive numbers are 10 and 11.
A wizard walks into a wand shop to
purchase a magic wand. He chooses
a wand that is 22 cm long. Will the
wand fit into the box shown? Explain.
No. You can see this because the length of the box is 21, whilst the length of the wand is 22.
Answer:
Yes, it can fit in.
Using Pythagoras theorem:
Find bottom side, hypotenuse
a² + b² = c²
6² + 21² = (bottom side)²
bottom side = √477
bottom side = 3√53 cm
Then find upper diagonal, hypotenuse
(3√53)² + 5² = diagonal²
diagonal = √502
diagonal = 22.4 cm
Thus the wand can fit in the box diagonally.
Select the expression that has a sum of seventy-four hundredths.
A seventy hundredths plus four tenths
B sixty eight-hundredths plus six tenths
C six tenths plus twelve hundredths
D four-tenths plus thirty-four hundredths
Find the perimeter of the parallelogram with these vertice
(3,5), (-4, 2), (3, 1), (-4,-2)
Answer:
24 is your answer
Step-by-step explanation:
I first brought one side up as the other went down.
Then found the base and the side and added them all to get
8 as base and 4 multiply both by two then add to get 24
hope this helped.
A brainliest is always appreciated.
Students in Mr. Jacob's class used a number
cube with sides numbered 1 through 6 and a spinner with 4 even-numbered and 4 odd-numbered sections. For each trial, they recorded whether the outcomes for the cube and the spinner were even or odd.
Based on the data in the table, which is closest to the number of times the next 50 trials should result in both the cube and the spinner being even?
A 12
B 25
C 48
D 50
Please explain how you got the answer if you can.. or like a small summary
Answer:
25.
Step-by-step explanation:
the ratio from even to odd is equal. a half chance of getting even 3:6 & 4:8 [ theres 3 even #s on the cube, 3 odds #s on the cube] vice VERSA!! for either even or odd roll. so out of 50, half of 50 is 25. there's a 1:2 chance of even(or in whatever case) 1:2 = 25:50
Which equation can be used to find the perimeter of a regular octagon with sides of length 12 m?
Question 1 options:
P = 8 + 12
P = 8(12)
P = 12 ÷ 8
P = 2(8) + 2(12)
Answer: P=8(12)
Step-by-step explanation:
A regular polygon has all sides of equal length, meaning a regular octagon has 8 sides of equal length.
Someone pls help??????????????????????????????
What is 80% of 150? Please help
Answer:
the answer is x=120
Step-by-step explanation:
look at the photo for the mathematical explanation
The rectangle below has an area of x2 – 25 square meters and a length of x + 5 meters.
What expression represents the width of the rectangle?
Answer:
Width: x - 5
Step-by-step explanation:
x² - 25
x² - 5²
(x - 5)(x + 5)
Step-by-step explanation:
A function is a relation where each input value is assigned to_____one output value
A. exactly
B. less than
C. at least
Remi buys a fish tank for $70. The sales tax is 8%. What is the total cost of the fish tank, including sales tax?
Answer:
$75.60
Step-by-step explanation:
Given:
Remi buys a fish tank for $70. The sales tax is 8%To Find:
What is the total cost of the fish tank, including sales tax?
Note:
Sales Tax ⇒ Increase ⇒ Add
8% = 0.08
Solve:
$70 × 0.08 = 5.60
$70 + 5.60 = 75.60
Hence, total cost of the fish tank including sales tax is $75.60
~Learn with Lenvy~
In ABC, C = 1.2 inches, a = 7.7 inches and ZB=143°. Find A, to the nearest 10th of
an degree.
Answer: 32.2
Step-by-step explanation:
12.
Sandra and Emil are both house painters,
and each charges an hourly rate for a
painting job. The equation y = 13r shows
the total charge, y, in dollars, for hiring
Sandra to paint a house for *hours. The
table below shows the same information
for Emil.
Emil's Charges
2 4 6 8
26 52 78 104
This data set represents the widths in yards of pieces of fabric used by a sewing group.
What is the mean of this data set?
{113, 14, 23, 12, 114}
Enter your answer as a fraction in simplest form in the box.
help
The mean of the data set in simplest form is: 4/5 yard.
What is the Mean of a Data Set?Mean = sum of all values in the data set divided by the number of values in the data set.
Mean of the data set = (1 1/3 + 1/4 + 2/3 + 1/2 + 1 1/4)/5
Convert the mixed fractions to improper fractions
(4/3 + 1/4 + 2/3 + 1/2 + 5/4)/5
[(16 + 3 + 8 + 6 + 15)/12]/5
(48/12)/5
= 4/5
Therefore, the mean of the data set in simplest form is: 4/5 yard.
Learn more about mean of a data set on:
https://brainly.com/question/11015069
Answer:
The answer is 4/5 yds hope this helps :DD
Step-by-step explanation:
Answer for: k12 5.02 Quiz: Mean
i need help with this
Answer:
So you can either buy all roses or all carnations, or spend $30 on each kind:
12 roses
10 carnations
6 roses & 5 carnations
Step-by-step explanation:
If you buy a combination of roses and carnations, the amount of money you spend on each has to be a multiple of both 5 and 6. Since these are relatively prime, their least common is 5(6) = 30.
note: the reason it has to be a common multiple of 5 and 6 is because the total amount - 60 - is a common multiple.
(-1)[-3-(-5)(7)]+(-3+7)(-2)
[tex](-1)[-3-(-5)(7)]+(-3+7)(-2)\\\\=(-1)[-3-(-35)]+(4)(-2)\\\\=(-1)(32)-8=-40[/tex]
Hope it helps!
Can you show that this quadrilateral is a parallelogram
Answer:
This is a parallelogram.
Step-by-step explanation:
This figure has two pairs of paralel sides with completely different angles.
White shapes and black shapes are used in a game.
Some of the shapes are circles.
All the other shapes are squares.
О
The ratio of the number of white shapes to the number of black shapes is 5:11
The ratio of the number of white circles to the number of white squares is 3:7
The ratio of the number of black circles to the number of black squares is 3:8
Work out what fraction of all the shapes are circles.
The fraction of the shape that is circle is 9/32.
What is a Circle's Shape?A circle is known to have a kind of round figure that does not have any corners or edges. They are said to be closed and two-dimensional curved shape. e.g. wall clock, a lollipop. etc.
For better understanding, note that:
The Total Black Shapes is = 5 : 11 and then you divide by 2 to give
10 : 22
The ratio for the white shapes is 3 : 7
Then you Sum up the units = 3 + 7 = 10
To Find the equivalent ratio for the total shapes, one has to know:
Black squares = 3 : 8 and then Multiply by 2:
Black circles is said to be Black squares and their ratio is = 6 : 16
The Sum of the units = 6 + 16 = 22
Then you have to combine the ratios all together:
Therefore White circles : white squares : black circles : black square = 3 : 7 : 6 : 16
The Circles = 3 + 6 = 9 units
Total = 3 + 7 + 6 + 16 =32 units
The fraction of all the shapes that are circles = 9/32
Therefore, 9/32 of the shapes found are circles.
Learn more about shapes from
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An angle measureless 60 degrees the measure of it complementary angle. What is the measure of each angle
Step-by-step explanation:
Finally complement of the supplement of twice the angle 60°=90°-60°=30
60 degrees angle is an acute angle because it is less than 90 degrees. 60° in radians is π/3 and the measure of each angle of an equilateral triangle is 60°. Therefore, it is also called a 60-degree angle triangle.
please mark me as brainlist pleaseGiven :
An angle which measures less 60° the measure of its complementary angle.⠀
To Find :
The measure of its complementary angle.⠀
Solution :
Let's assume the one of the complementary angle as "x" and the other angle as (x - 60)° .
Now,
According to the Question :
[tex]\: \qquad \dashrightarrow \sf{{x {}^{ \circ} + (x - 60) {}^{ \circ} = {90}^{ \circ} }}
[/tex]
[tex]\: \qquad \dashrightarrow \sf{{x {}^{ \circ} + (x - 60) {}^{ \circ} = {90}^{ \circ} }}
[/tex]
[tex]\: \qquad \dashrightarrow \sf{{x {}^{ \circ} + x {}^{ \circ} - 60 {}^{ \circ} = {90}^{ \circ} }}
[/tex]
[tex]\: \qquad \dashrightarrow \sf{{{2x}^{ \circ} = {90}^{ \circ} + 60 {}^{ \circ} }}
[/tex]
[tex]\: \qquad \dashrightarrow \sf{{{2x}^{ \circ} = 150 {}^{ \circ} }}
[/tex]
[tex]\: \qquad \dashrightarrow \sf{{x = \dfrac{150 {}^{ \circ}}{2 {}^{ \circ}} }}
[/tex]
[tex]\: \qquad \dashrightarrow \bf{{{x}^{ \circ} = 75 {}^{ \circ} }}
[/tex]
Therefore,
One angle = 75°Other angle = 75° – 60° = 15°⠀
Henceforth ,
The measure of the two angles are 75° and 15° .
Evaluate the expression (9 + 14i) + (7 – 11i) and write the result in the form a + bi.
Answer:
16+3i
Step-by-step explanation:
(9+ 14¡) + (7 - 11¡)
9+ 14¡ + 7 - 11¡
16 + 3i
I'm about to finish 6th grade and I found out that most of the topics we studied and we are still studying are a bit difficult in math, so what topics I must need to know so I get prepared for 7th grade, would you help me please?
I will appreciate it so much.
Answer:
How to succeed in 7th grade
Strive for a deeper understanding of science. Instead of just memorizing facts, students learn to collect data, use the scientific method, and apply this information to compose reports and ask questions.
Express complex meanings through writing. ...
Stay ahead of the curve in math classes.
Step-by-step explanation:
Mr. Campbell has a square garden with an area of 256 square feet. He wants to put a fence along 3 sides of the garden. How many feet of fencing will he need?
Answer:
Step-by-step explanation:
It should be noted:
Area of square garden = L² = 256
Square root both sides of the equation to find the length of the square garden. Then, use the length of the square garden to calculate the length of fence required for 3 sides of the garden.
Square root both sides.
√L² = √256
=> L = 16
Multiply the length by 3.
3L = 16 x 3 = 48 feet
Thus, Mr. Campbell will need 48 feet of fencing.
Ezra is filling bottles of water to hand out during a race. Each bottle of water holds 16 ounces and he has 4,005 ounces of filtered water to divide. How many ounces of water will be left after Ezra has filled the maximum possible number of bottles? Express your answer as a number.
Please help!
Write [tex]\sqrt{8}[/tex] in the form [tex]4^n[/tex] - I'm doing GCSE maths and have no clue how to do this without a calculator.
V8 ENGINE
Step-by-step explanation:
A driver can deliver his newspapers in 80 minutes. His friend can take care of the same route in 2 hours. How long would it take them to do the job together?
Using the together rate, it is found that it would take them 48 minutes to do the job together.
What is the together rate?The together rate is the sum of each separate rate.
In this problem, consdering the measures in minutes:
The driver's ratio is of [tex]\frac{1}{80}[/tex].His friend's ratio is of [tex]\frac{1}{120}[/tex].The together ratio is of [tex]\frac{1}{x}[/tex].Hence:
[tex]\frac{1}{x} = \frac{1}{80} + \frac{1}{120}[/tex]
[tex]\frac{1}{x} = \frac{3 + 2}{240}[/tex]
[tex]x = \frac{240}{5}[/tex]
[tex]x = 48[/tex]
It would take them 48 minutes to do the job together.
More can be learned about the together rate at https://brainly.com/question/25159431
y-8=-x solve for y
please show work I'm trying to find the y intercept
Graph the points (
–
1.5,4.5) and (
–
3.5,3.5) on the coordinate plane.
Answer:
(Please see attachment)
Step-by-step explanation:
Points on the graph:
(-1.5, 4.5), (3.5, 3.5)
Graph of points (-1.5, 4.5) and (-3.5,3.5) is given in attachment.
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
The given points are minus one point five comma four point five and minus three point five comma three point five.
(-1.5, 4.5) and (-3.5,3.5)
A coordinate plane is a tool used for graphing points, lines, and other objects
To point these points first we have to consider two lines, horizontal line and vertical line.
The horizontal line is called as X axis and vertical line is called as Y axis.
Then we have to pair (-1.5, 4.5) and (-3.5,3.5) with (x, y) coordinates.
Hence the given graph is the required answer.
To learn more on Graphs click:
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