Answer: 30 should be negative
Step-by-step explanation:
when having an equation like that, you must multiply -5 by 3, which equals to -15, then multiply-5 by 6 which then equals to -30. The correct equation should be -5(3+6)= -15+-30= -45
I think this should be correct, hope this helps!
Answer:
a) The negative was not distributed to the 6
b) -45
Step-by-step explanation:
This simplification uses the distributive property. This is when a factor outside of parentheses is multiplied by the factors within the parentheses. When using this property, if the factor outside the parentheses is negative, then that negative must be distributed to both factors within the parentheses.
The correct way to simplify the expression is as follows:-5(3+6)
Multiply -5*3 and -5*6-15 + -30
Rewrite this using subtraction-15-30
Subtract-45
Estimate 1 3/4+4 7/8 to the nearest whole number.
3147 divided by 5 with quotient and remainder?
Answer:
629r2
Step-by-step explanation:
Hope this helped!
what is the answer to this question: Tadeo volunteered at the library 6 times as many hours over the weekend as Dylan. Together, they volunteered a total of 14 hours. How many hours did each person volunteer over the weekend?
Answer:
Tadeo: 12 hoursDylan: 2 hoursStep-by-step explanation:
We can let d represent the number of hours that Dylan volunteered. Then Tadeo volunteered for 6d hours, and their total hours were ...
d +6d = 14
7d = 14 . . . . . . collect terms
d = 2 . . . . . . . divide by the coefficient of d
6d = 6(2) = 12
Tadeo volunteered 12 hours; Dylan volunteered 2 hours.
Find the coordinates of B, C, and D given that AB=5 and BC = 10
Answer:
B = (3, -5)
D = (0, -1)
C = (3, 5)
Step-by-step explanation:
We want to find the coordinates of B, C, and D given that AB = 5 and BC = 10.
Because AB = 5 and BC = 10, we can find the slope of the line using the slope formula:
[tex]\displaystyle \begin{aligned} m & = \frac{\Delta y}{\Delta x} \\ \\ & = \frac{(10)}{(5)} \\ \\ & = 2 \end{aligned}[/tex]
Point A(-2,-5) is on the line. Hence, the equation of the line is:
[tex]\displaystyle \begin{aligned} y-y_1 &= m(x-x_1) \\ \\& = y-(-5) = 2(x-(-2)) \\ \\ y + 5 & = 2x+4 \\ \\ y & = 2x-1 \end{aligned}[/tex]
Because AB is 5, B is simply A shifted rightwards five units. Hence:
[tex]\displaystyle B = (-2+5, -5) = (3, -5)[/tex]
At Point D, x = 0. Hence:
[tex]\displaystyle y = 2(0) -1 = -1[/tex]
Thus, D is at (0, -1).
B and C are collinear. Hence, the x value of C is 3:
[tex]\displaystyle y = 3(2) - 1 = 5[/tex]
Therefore, C is at (3, 5).
The first year a baseball team debuted, one ticket cost 25$ After that, the price increased 2$ every year Write a linear equation in slope-intercept form that can be used to model the cost y of a ticket x years after the first year.
Answer:
Equation: y = 2x + 25
Step-by-step explanation:
Here x determines the number of year. For the first year,we will see ( 2 * 1 ) = $2 increase. In the second year, ( 2 * 2 ) =$4 increase and like this goes on, whereas the $25 being constant. "y" determines the total cost for each year.
Therefore the equation can be made: y = 2x + 25
Equation in slope intercept form
y=mx+by=2x+25At Skyler airport 30% of the scheduled flights are delayed if 240 flights are delayed how many scheduled flights does Skyler airport have
please help me , step by step explanation needed
=======================================================
Explanation
Part (a)
The smaller pyramid up top is the result of slicing at the halfway point.
This leads to the ratio 1:2 when comparing small side to larger side.
Cube both parts of that ratio to end up with 1:8 as the volume ratio.
This means if the smaller pyramid was say 1 cubic foot in volume, then the larger pyramid has a volume of 8 cubic feet.
-------------------------
Part (b)
Consider the case that,
volume of smaller pyramid = 1 cubic feetvolume of larger pyramid = 8 cubic feetThe volume of the truncated base is 8-1 = 7 cubic feet.
The ratio of the smaller pyramid to the truncated base is 1:7
Find perimeter . Simplify your answer
Answer:
perimeter of triangle=sum of all three sides
Step-by-step explanation:
[tex]( {2y}^{2} - {2x}^{2} ) + ( {y}^{2} - {x}^{2} + 11 ) \\ + ( {5x}^{2} - {2y}^{2} - 12)[/tex]
[tex] {2y}^{2} + {y}^{2} - {2y}^{2} + {5x}^{2} - {x}^{2} - {2x}^{2} + 11 - 12[/tex]
Hope it helps you<3[tex] {y}^{2} + {2x}^{2} - 1[/tex]
I think im correct ? please help am i?
you are wrong, the correct answer is x^2 - 16
what is the gradient of the blue line ?
1/4 is the gradient.
gradient => (2-3)/(4-8)
gradient => -1/(-4)
gradient => 1/4
Nellie is analyzing a circle, y2 + x2 = 25, and a linear function g(x). Will they intersect?
y2 + x2 = 25 g(x)
graph of the function y squared plus x squared equals 25
x g(x)
−7 −2
−6 −1
1 6
Yes, at positive x‐coordinates or zero
Yes, at negative x‐coordinates or zero
Yes, at negative and positive x‐coordinates or zero
No, they will not intersect
C. Yes, at negative and positive x‐coordinates or zero
I believe it is this
Answer: b Yes ,at negative x coordinates or zero
Step-by-step explanation:
we can see through the values that the graph will graph on the negative x coordinate or zero
I need to know the answer and quick please.
irrational number: cannot be expressed as a simple fraction
a. [tex]\tt 2-\sqrt{3}:irrational[/tex]
b. [tex]\tt \sqrt{2}\times \sqrt{3}=\sqrt{6}:irrational[/tex]
c. [tex]\tt \sqrt{27}\times \sqrt{3}=\sqrt{81}=9:rational[/tex]
d. [tex]\tt =0\sqrt{7}=0:rational[/tex]
PLS HELP!! I WILL GIVE BRAINLIEST :)
Here is a number puzzle.
Fill in each blank with a number so that every row,
column, and diagonal adds up to the same total.
Answer:
See the attached table.
Step-by-step explanation:
Each row, column, and diagonal all add up to six.
[tex]\left[\begin{array}{cccc}9&-5&-4&6\\-2&4&3&1\\2&0&-1&-5\\-3&7&8&-6\end{array}\right][/tex]
Hope that helps!
Answer:
*
Step-by-step explanation:
9 -5 -4 6
-2 4 3 1
2 0 -1 5
-3 7 8 -6
if 14 songs were 9.38 dollars how much would one be
Answer:
each song would be 67 cents (0.67)
Step-by-step explanation:
9.38/14=0.67
if there are 280 6th graders and 200 7th graders then how many more seventh graders are involved in the yearbook
Using proportions, it is found that 8 more seventh graders are involved in the yearbook.
What is a proportion?A proportion is a fraction of a total amount.
Researching the problem on the internet, it is found that 10% of the 6th graders and 18% of the 7th graders are on the yearbook, hence:
0.1 x 280 = 28 6th graders.
0.18 x 200 = 36 7th graders.
36 - 28 = 8
8 more seventh graders are involved in the yearbook.
More can be learned about proportions at https://brainly.com/question/24372153
Any ideas on how to answer this for math?
You have learned what tangent lines are. You have learned that they are perpendicular to the radius at a point on the circle. What is unique about a tangent line is that it touches the circle at exactly one point, but never goes inside the circle. But points are infinitely small … how can a line touch a circle without ever going into it?
Answer:
In Euclidean plane geometry, a tangent line to a circle is a line that touches the circle at exactly one point, never entering the circle's interior. Tangent lines to circles form the subject of several theorems, and play an important role in many geometrical constructions and proofs.
Step-by-step explanation:
smarts.
hope this helps :))
Which is a factor of x2 – 9x 14? x – 9 x – 2 x 5 x 7.
Answer:
Step-by-step explanation:
The 2 factors of x^2 - 9x + 14 are (x - 7) and (x - 2) because -7 + -2 = -9 and -7 x -2 = 14.
The factors of the quadratic expression x² – 9x + 14 is (x - 7)(x - 2) option (B) (x - 2) is correct.
What is a quadratic function?Any function of the form [tex]\rm f(x) =ax^2+bx+c[/tex] where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic function.
It is given that:
The quadratic expression is:
= x² – 9x + 14
Using factor method:
= x² – 7x - 2x + 14
= x(x - 7) - 2(x - 7)
= (x - 7)(x - 2)
The factors of the quadratic expression x² – 9x + 14 is (x - 7)(x - 2)
Thus, the factors of the quadratic expression x² – 9x + 14 is (x - 7)(x - 2) option (B) (x - 2) is correct.
Learn more about quadratic function here:
brainly.com/question/17177510
#SPJ5
In what real-world scenario do we use systems of equations?
1.What twenty-first century task does this tool help us manage? Explain how your tool is used for this task.
2. In what field or career would your tool be useful for and how? Please explain.
The systems of equations are known to be complex. We often use systems of equations in real-world scenario such as when calculating or thinking if one will make more money at one job than the other, here we look into variables such as wages, benefits and commissions, etc.
What twenty first century tasks systems of equations handles?They are used to calculate the amount of tax that is charge to people. They also help man to measure and understand the real- world situations and happenings.
The field or career that Equations are known to be widely used are the engineering profession. Chemical engineers, civil engineers, electrical engineers, etc. often uses it in construction of building, lighting a place, etc.
The Systems of equations are often applied in the real world by economists and entrepreneurs to known the time of equality of supply and demand.
Learn more about systems of equations from
https://brainly.com/question/14323743
Subtract 3x2 – 5x + 2 from 3x – x2 can anyone do it step by step
Answer:
2x[tex]x^{2}[/tex]-8x+2
Step-by-step explanation:
24 dogs to 56 cats
In the simplest form
Answer:
Simplify them to the lowest.
What's the GCF( Greatest Common Factor). It's 8. So divide both sides by 8.
24/8 = 3
56/8 = 7
so it's
3 dogs to 7 cats
Step-by-step explanation:
Answer:
3 dogs to 7 cats
Step-by-step explanation:
Find the Greatest Common Factor of the two numbers- if you don't know what that means, it means to find the biggest number that both numbers can be divided by. Basically, it's like simplifying a fraction.
:) Hope this helps!
Solve for the variable and express the answer in set notation.
|5x - 4|= 11
Hey there!
ORIGINAL EQUATION
|5x - 4| = 11
~~~~~~~~~~~~~~~~~~~~
Possible EQUATION #1
5x - 4 = 11
ADD 4 to BOTH SIDES
5x - 4 + 4 = 11 + 4
CANCEL out: -4 + 4 because it gives you 0
KEEP: 11 + 4 because it help solve for the x-value
NEW EQUATION: 5x = 11 + 4
SIMPLIFY IT!
5x = 15
DIVIDE 5 to BOTH SIDES
5x/5 = 15/5
CANCEL out: 5/5 because it gives you 1
KEEP: 15/5 because it help solve for the x-value
NEW EQUATION: x = 15/5
SIMPLIFY IT!
x = 3
~~~~~~~~~~~~~~~~~~~~
Possible EQUATION #2
5x - 4 = -11
ADD 4 to BOTH SIDES
5x - 4 + 4 = -11 + 4
CANCEL out: -4 + 4 because it gives you 0
KEEP. -11 + 4 because it help solve for the x-value
NEW EQUATION: 5x = -11 + 4
SIMPLIFY IT!
5x = -7
DIVIDE 5 to BOTH SIDES
5x/5 = -7/5
CANCEL out: 5/5 because it gives you 1
KEEP: -7/5 because it help solve for the x-value
NEW EQUATION: x = -7/5
SIMPLIFY IT!
x = -7/5
~~~~~~~~~~~~~~~~~~~~~~~
ANSWER
x = 3 or x = -7/5
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
Write an equation for the sentence below.
The sum of three times a number (x) and -23−23 is 2828.
Answer:
3x - 23 = 2828
Step-by-step explanation:
I'll assume the question is supposed to read "The sum of three times a number (x) and −23 is 2828."
"three times a number (x)" can be written as 3x
"sum of three times a number (x) and −23" means 3x - 23
"is 2828" = 2828
Put them together:
3x - 23 = 2828
==================
Not part of the question
If you want to solve for x:
3x = 2805
x = 935
You select a marble without looking and then put it back. If you do this 36 times, what is the best prediction possible for the number of times you will pick a blue marble?
Answer:
12 times
Step-by-step explanation:
There are 3 blue marbles and 9 marbles total. The probability of selecting a blue marble is 3/9, reduced it is 1/3.
Multiply the probability by 36
[tex]\frac{1}{3}[/tex] × [tex]\frac{36}{1}[/tex]
[tex]\frac{36}{3}[/tex]
12
If you deposit $320 at a 10% interest rate and will not make any additional deposits or withdraws, how much will you have at the end of 4 years?
Answer:
$468.582
Step-by-step explanation:
Hope this helps! Please mark me as brainliest so I can level up :)
The red line in the figure is an altitude of triangle HJL. Using right angle
trigonometry, write an equation involving sinH.
Answer:
x = z sin H
Step-by-step explanation:
[tex]\sin H = \frac{x}{z} \\ \\ \implies \: x = z \: \sin H[/tex]
I need help with this
Answer:
the answer is 406 L times H times W
Answer:
406 Sorry if wrong!
Step-by-step explanation:
Volume=length x width x height
helpppppooooooppooopp
Answer:
13 units
Step-by-step explanation:
-25, -12
|-25| - |-12|
13 units
Hope it helps! :)
help
There are 230 milliliters of water in a beaker. How many liters are in the beaker?
A. 0.023 L
B. 230 L
C. 2.3 L
D. 0.23 L
What is the answer to 40x + 24
Answer:
8(5x+3)
Step-by-step explanation:
find the nearest degree
Answer:
Nearest angle is 30°.Step-by-step explanation:
There are 3 angles:
90° and 60°.There is 1 missing angle:
x°Subtract 180°:
180 - 60 = 120 - 90 = 30.Missing angle found!
Missing angle:
30°