Answer:
X^2 +4y-2
Step-by-step explanation:
Substraction gives the difference between two points or two positions.
We were told to substraction 4x2 - 3y + 4, from (3x2 - 7y + 6)
Then we can say
(4x2 - 3y + 4) -(3x2 - 7y + 6)
If we open the bracket we have
4x2 - 3y + 4 - 3x2 + 7y - 6
Then if we collect like terms we have
4x2 - 3x2 -3y +7y +4 -6
Then we have
X^2 +4y-2
Hence the substraction between 4x2 - 3y + 4, and (3x2 - 7y + 6)
gives us X^2 +4y-2
15x^2-4x-4=15x
2
−4x−4=
Answer:
i think the answer u need is -2-4x
i will give you brainliest and 5 stars and a thanks so please answer this fast AND CORRECTLY! thanks :) also this is offering 25 points if you answer right unlike the usual 5
Answer:
2 meters
Step-by-step explanation:
The formula for finding the volume of a triangular prism is:
V = 1/2ba * h where b = base length, a = height of base and h = height of prism. In this case, we're solving for a. We know that V = 4.5, b = 1.5 and h = 3 so:
4.5 = 1/2 * 1.5 * a * 3
4.5 = 2.25a
a = 2 meters
Answer:
First of all snog can you please say something in comments man you the best mod out there.
1.5 m because that is the height of the tent. It says so as a measurement.
Step-by-step explanation:
A rectangle had perimeter 92cm and length 38 cm. What is the width?
Answer:
7cm
Step-by-step explanation:
can someone pls . & hurry thxs
Answer:
(D) [tex]x>-10[/tex]
Step-by-step explanation:
If we have the inequality [tex]-7x + 4 > -8x - 6[/tex], we can simplify it down and get [tex]x[/tex] isolated on one side of the equation.
Add 6 to both sides:
[tex]-7x + 4 + 6 > -8x - 6 + 6\\\\-7x + 10 > -8x[/tex]
Add [tex]8x[/tex] to both sides of the inequality:
[tex]-7x + 10 + 8x > -8x+8x\\\\x + 10 > 0[/tex]
Subtract 10 from both sides of the inequality:
[tex]x + 10 - 10 > 0 - 10\\\\x > -10[/tex]
So (D) [tex]x>-10[/tex] is the correct simplification.
Hope this helped!
Write an algebraic expression to represents the verbal expression: the difference between the product of 4 and a number and the square of the number
Answer:
[tex]4n-n^2[/tex]
Step-by-step explanation:
I use 'n' as the unknown value, but you can use any letter you want as the variable.
The product of four and a number would be represented by '4 * n'. The ideal way to write this would be '4n', even though '4 * n' is also correct in value.
The square of the number would be n². Squaring a number is multiplying a number by itself.
The phrase 'difference between...' means subtraction.
Putting it together:
"The difference between the product of 4 and a number and the square of the number" would be:
[tex]4n-n^2[/tex]
Hope this helps.
What is the definition of Plagiarism? What is the policy about blank assignments, essays, or short answer questions? Why do you think we do not allow you to take a zero on any assignment?
Answer:
definition of plagiarism
Step-by-step explanation:
Plagiarism is presenting someone else's work or ideas as your own, with or without their consent, by incorporating it into your work without full acknowledgement. All published and unpublished material, whether in manuscript, printed or electronic form, is covered under this definition.
the length of the shadow of a pole on level ground increases by 90m when the angle of elevation of the sun changes from 58 degree to 36 degree calculate correct to three significant figure the height of the pole
Answer:
The height of the pole is 167 m
Step-by-step explanation:
The given parameters are;
Increase in the length of the shadow = 90 m
Initial angle of elevation of the Sun = 58°
Final angle of elevation of the Sun = 36°
We have a triangle formed by the change in the length of the shadow and the rays from the two angle of elevation to the top of the pole giving an angle 22° opposite to the increase in the length of the shadow
We have by sin rule;
90/(sin (22°) = (Initial ray from the top of the pole to the end of the shadow's length)/(sin(122°)
Let the initial ray from the top of the pole to the end of the shadow's length = l₁
90/(sin (22°) = l₁/(sin(122°)
l₁ = 90/(sin (22°) ×(sin(122°) = 283.3 m
Therefore;
The height of the pole = 283.3 m × sin(36°) = 166.52 m
The height of the pole= 167 m to three significant figures.
Answer:
height of pole = 121 m (to 3 significant figures
Step-by-step explanation:
From the diagram attached to this solution:
Let the length of the shadow = b
Let the height of the triangle = h
[tex]Triangle\ 1\\\\Tan\ (58)\ =\ \frac{h}{b}\\1.60\ =\ \frac{h}{b} - - - - - -(1)\\\\[/tex]
[tex]Tan\ (36) = \frac{h}{b+90} \\0.73\ =\ \frac{h}{b+90} - - - - (2)[/tex]
[tex]From\ equation\ (1)\\1.60 = \frac{h}{b}\\ cross-multiplying\\1.60b = h - - - - - (3)\\\\\\from\ equation\ (2)\\0.73\ =\ \frac{h}{b+90}\\ corss-multiplying\\0.73b\ +\ 65.7 = h\\h\ =\ 0.73b\ +\ 65.7- - - - - -(4)\\[/tex]
Notice that equation (3) = equation (4) = h
[tex]1.60b = 0.73b\ + 65.7\\1.60b\ -\ 0.73b\ = 65.7\\0.87b\ =\ 65.7\\b\ =\ \frac{65.7}{0.87} = 75.52\ m\\[/tex]
Now let us find the height of pole from equation (3)
1.60b = h - - - - - - (3)
where b = 75.52
h = 1.60 × 75.52
h = 120.83 m
= 121 m (to three significant figure
Which of the following is equivalent to 18 - square root of -25?
Answer:
90i
Step-by-step explanation:
18 * sqrt(-25) = 90i
If on adding 9 to twice of a whole number gives 31, then the whole number is
Answer:
Hey there!
We can let x be that number.
2x+9=31
2x=22
x=11
The number is 11.
Let me know if this helps :)
Answer:
The whole number is 11.
Step-by-step explanation:
Let's call the whole number x. We can write the following equation:
2x + 9 = 31
Subtracting 9 from both sides of the equation gives us:
2x + 9 - 9 = 31 - 9
2x = 22
Dividing both sides of the equation by 2 gives us:
2x / 2 = 22 / 2
x = 11
Determine whether the following is an expression or an equation.
3x +5-2= 12x
Choose the correct answer below.
A. The statement is an equation because there is no equality symbol.
B. The statement is an expression because there is no equality symbol.
C. The statement is an equation because there is an equality symbol.
D. The statement is an expression because there is an equality symbol.
Answer:
C. The statement is an equation because there is an equality symbol.
Step-by-step explanation:
Equation:
Combination of terms joined by the sign minus, plus, multiplication, and division and has equality sign.
Example
5x+45=-5
Term:
A Numbers. (Only)
Example:
9
Combination of a number and a variable joined by multiplication or division.
Example:
9x, 6ab, 10n
Variable:
a symbol that is written with a number or a term.
6ab
Expression:
Terms joined by the sign plus or minus
Hope this helps ;)❤❤❤
Click the square near each correct choice to fill it in. Be sure to mark all correct answers.
Which of the following mathematical statements are true? Select all that apply.
DA. 1.2 = 2
B. 1.1=1
C. 1+2 = 2
D. 2-2 = 1
DE 1+1=2
Answer:
The correct options are;
A. 1·2 = 2
B. 1·1 = 1
E. 1 + 1 = 2
Step-by-step explanation:
Given that the equations 1.2 = 2 and 1.1 = 1 are correctly written as 1·2 = 2 and 1·1 = 2, we have;
The product of any number and one is equal the same number, that is a × 1 = a
Whereby we have the expression 1·2 which is 1 × 2, we therefore have;
1 × 2 = 1 · 2= 2
B. Similarly we have;
1 · 1 = 1 × 1 = 1
Also, 1 + 1 = 2 is correct as the sum of two numbers is equal to the sum of the count of the numbers, therefore;
E. 1 + 1 = 2 is correct.
javier writes an integer on a piece of paper. The absolute value of his number is less than 4. Which is true of the possible values of Javier’s number?
The possible values are less than 4.
The possible values are less than –4.
The possible values are less than 4 but greater than –4.
The possible values are either greater than 4 or less than –4.
Answer:
The possible values are less than 4 but greater than –4
Step-by-step explanation:
If the absolute value of integer number is less than 4 then it is 0, 1, 2 or 3.
so the possible integer numbers are: -3, -2, -1, 0, 1, 2 or 3.
All of them are greater than -4 and less than 4
Answer:
Answer is C.
Step-by-step explanation:
solve the equation below for a
vf=vi+at
Answer:
a=[tex]\frac{vf - vi }{t}[/tex]
Step-by-step explanation:
vf=vi + at
vf-vi= at
divide both sides by t
[tex]\frac{vf - vi }{t}[/tex] =[tex]\frac{at}{t}[/tex]
a=[tex]\frac{vf - vi }{t}[/tex]
PLZZZZ HELP ASAP !!!!!
Answer:
Step-by-step explanation:
a.
[tex]AC=\sqrt{AB^2-BC^2} =\sqrt{13^2-5^2} =\sqrt{169-25} =\sqrt{144} =12\\[/tex]
applying sine formula
AB=c
AC=b
BC=a
[tex]\frac{a}{sin A} =\frac{b}{sin B} =\frac{c}{sin C} \\\\\frac{5}{sin A} =\frac{12}{sin B} =\frac{13}{sin 90} \\using~last~two\\\frac{12}{sin B}= \frac{13}{1} \\sin B=\frac{12}{13}\\ B=sin^{-1}(\frac{12}{13}) \approx 67.38 ^\circ[/tex]
b.
third angle ∠Y=180-(30+90)=180-120=60
using sine formula
[tex]\frac{xz}{sin Y} =\frac{xy}{sin Z} = \frac{yz}{sin X} \\\frac{30}{sin 60} =\frac{xy}{sin 90} =\frac{h}{sin 30} \\using ~first~and~last\\\frac{30}{\frac{\sqrt{3} }{2} } =\frac{h}{\frac{1}{2} } \\2h=\frac{60}{\sqrt{3} } \\h=\frac{30}{\sqrt{3} } \times \frac{\sqrt{3} }{\sqrt{3} } =10\sqrt{3}[/tex]
Write an equation with a variable x and solve it to find these unknown amounts. a. 18 more than double a number is divided by 5 and this equals 12. What is the number?
Answer:
x = 21
Step-by-step explanation:
1. Write the equation
(18 + 2x) ÷ 5 = 12
2. Multiply both sides by 5
18 + 2x = 60
3. Subtract 18 from both sides
2x = 42
4. Solve for x by dividing both sides by 2
x = 21
Answer:
the equation is 18+2x/5 =12
Step-by-step explanation:
now
18+2x= 60
or 2x= 60-18
or 2x= 42
or x=21
so the no is 21 (ans)
thank u
Five boys A, B, C, D,E
are sitting in a park in a circle. A is facing South-West, D is facing
South-East, B and E are right opposite A and D respectively and C is equidistant between
D and B. Which direction is C facing?
Answer:
C is facing North
Step-by-step explanation:
write a real world problem for the equation y=3/5x+100
Answer:
is this for a test?
Step-by-step explanation:
Martina used 3 4 of a bottle of conditioner in 7 12 of a year. How much conditioner would she use in a full year?
She would use 9/7 of a bottle of conditioner for a full year.
What is the proportion?A mathematical assessment of two numbers is called a proportion. If two sets of provided numbers rise or fall in the same relation, then the ratios are said to be directly proportional to each other.
We have been given that Martina used 3/4 of a bottle of conditioner in 7/12 of a year.
Let the amount of conditioner would be x she uses in a full year
As per the given condition, we can write a proportion as
3/4 of a bottle : 7/12 of a year = x : 1
⇒ (3/4) / (7/12) = x / 1
Reciprocal the terms of the denominators,
⇒ (3/4) × (12/7) = x
⇒ 36 / 28 = x
⇒ x = 9/7
Therefore, she would use 9/7 of a bottle of conditioner for a full year.
Learn more about the proportion here:
brainly.com/question/1504221
#SPJ2
What is x if f(x) =1
the answer is 1 because when x is a variable by it self it is 1
Answer: 1
Step-by-step explanation: f(x)=1
A car manufacturer claims that their car can get 32 miles per gallon minus the speed
factor. This can be modeled by the linear equation f(x) = 32 -0.15x where f(x)
represents the miles per gallon and x is the mph. What would be the predicted miles
per gallon for a car going 60 mph using this equation?
Type your answer.
Answer:
23 mpg
Step-by-step explanation:
We simply need to evaluate the given function at the speed requested (60 mph):
[tex]f(x)=32-0.15\,x\\f(60)=32-0.15\,(60)\\f(60)=23\,\,mpg[/tex]
Enrique's company pays Salim to advertise on Salim's Website. Salim's Website earns $15 per month plus $0.05 every time a visitor clicks on the advertisement. What is the least number of clicks per month that Salim needs in order to earn $50 per month or more?
Answer:
2000
Step-by-step explanation:
Salim will need to get 2000 clicks in order to get $50 per month or more.
First: 5 cents goes into one dollar 20 times.
Second: You multiply 20 times 50. This is how you get 2000. There is your answer.
Salim needs at least 700 clicks per month in order to earn $50 per month or more
A linear equation is in the form:
y = mx + b;
where y, x is variable, m is the rate of change and b is the y intercept.
Let y represent the total pay Salim earns and x represent the number of clicks.
Salim's Website earns $15 per month plus $0.05 every time a visitor clicks, hence:
y = 0.05x + 15
To earn for than $50 per month:
0.05x + 15 > 50
0.05x > 35
x > 700
Salim needs at least 700 clicks per month in order to earn $50 per month or more
Find out more at: https://brainly.com/question/13911928
PLEASE READ THE QUESTIONS AND ANSWER IT CORRECTLY
use the image below to HELP you answer it!!
whoever answers the question well i'll mark you the brainiest
a) Work out the angle x
x=
b)Write down the value of angle y,giving your reason
Answer:
(A) 70°
(B) 67°, because they are alternate interior angles
Step-by-step explanation:
For a:
The angles of a triangle will all add up to 180°. Using the "feathers" (lines that signify congruence), we can tell that the angle connecting the two congruent lines will be different than the other two, which will be equivalent to each other.
This means that the angle measure of x will be [tex]180-55-55[/tex], or just [tex]180-110[/tex].
This is equal to 70°.
For b:
We know that the 67° angle and y are formed by the same line intersecting two parallel lines. This means that the angle measures of each intersection point will be the same as the other intersection point, however they will be flipped. This makes the concept of alternate interior angles. We know that the 67° angle and y are formed by the same line, this means that their angle lengths are the same - therefore y is 67°.
Hope this helped!
he will look into the matter.
change to passive voice
Your question has been heard loud and clear
Passive voice
The matter will be looked into by him.
Thankyou
f(x) = -x2 - 9x
Find f(-2)
Answer:
22
Step-by-step explanation:
replace -2 for every in the equation:
-(-2)x2-9x-2=22
Answer:
f(-2)=14
Step-by-step explanation:
[tex]f(x) = -x^2 - 9x\\\\f(-2) = -(-2)^2-9(-2)\\\\\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations}\\\\\mathrm{Calculate\:exponents}\:\left(-2\right)^2\::\quad 4\\=-4-9\left(-2\right)\\\\\mathrm{Multiply\:and\:divide\:\left(left\:to\:right\right)}\:9\left(-2\right)\::\quad -18\\\\=-4-\left(-18\right)\\\\\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:-4-\left(-18\right)\:\\f(-2):\quad 14[/tex]
Find an equivalent expression for -3(2x+5)-(x-1)
Answer:
-7(x+2)
Step-by-step explanation:
-6x-15-x+1-7x-14-7(x+2)-3(2x+5)-(x-1)
↦ -6x+(-15)-x+1
↦-6x-x-15+1
↦7x-14
↦2(x-7)
Find the value of x. A. 84 B. 40 C. 50 D. 155
The value of the angle x will be 40°. Then the correct option is B.
What is a circle?The circle is at equidistant of points drawn from the center. The radius of a circle is the distance between the center and the circumference.
The minor arc is 75°. And the another arc is 130°.
We know that the complete circle subtends 360 degrees.
Then the measure of the major arc will be
Major arc + 130° + 75° = 360°
Major arc + 205° = 360°
Major arc = 155°
Then the value of the angle x will be given by the half of the difference of the major arc to minor arc.
x = (Major arc – minor arc) / 2
x = (155 – 75)/2
x = 80 / 2
x = 40°
Thus, the value of the angle x will be 40°.
Then the correct option is B.
More about the circle link is given below.
https://brainly.com/question/11833983
#SPJ5
Evaluate the logarithmic expression [logsubscript5(25) + logsubscript5(125) - logsubscript5(625)] / logsubscript5(100)
The value of the expression, rounded to the nearest hundredth, is {blank}
Step-by-step explanation:
[tex] \frac{ log_{5}(25) + log_{5}(125) - log_{5}(625)}{ log_{5}(100) } [/tex]
[tex] \frac{ log_{5}( \frac{25 \times 125}{625} ) }{ log_{5}(25 \times 4) } [/tex]
[tex] \frac{ log_{5}(5) }{ log_{5}(25) + log_{5}(4) } [/tex]
[tex] \frac{1}{2 + 2 log_{5}(2) } [/tex]
[tex]0.3495 = 0.35[/tex]
Pick out three equivalent fractions from the group 1/2 , 1/3, 3/4,3/6,2/4,4/10
Answer:
1/2, 3/6 and 2/4 are equivalent fractions.
Step-by-step explanation:
To know if the fractions are equivalent, their simplest form should be the same.
So we must simplify all the fractions to their simplest form.
To find the simplest form of a fraction, we must divide the numerator and denominator with their GCF (Greatest Common Factor)
So:
1/2 = 1/2
1/3 = 1/3
3/4 = 3/4
3/6 = 1/2 ( The GCF for 3 and 6 is 3)
2/4 = 1/2 ( The GCF for 2 and 4 is 2)
4/10 = 2/5 ( The GCF for 4 and 10 is 2)
Because 1/2, 3/6 and 2/4 has the same simplest form, they are equivalent fractions.
I hope this helps! I'm sorry if it's wrong or too complicated.
B-4-3b combining like terms
Answer: -2b-4
Ok, so I assume you meant b-4-3b. If not, then B-4-3b is the best you can get, since B and b are different in math.
Anyways, we can rearrange b-4-3b into b-3b-4. Calculating b-3b = -2b. That means -2b-4 is the answer.
Hope that helped,
-sirswagger21
Answer:
B - 4 - 3B
=> -2B - 4
Line TS is the perpendicular bisector of QR. Which of the following must be true?
Answer:
Option A must be true.
Step-by-step explanation:
Answer:
[tex] \overline{TQ} \cong \overline {TR} [/tex]
Step-by-step explanation:
Since, endpoints of a segment are equidistant from any point situated on the perpendicular bisector of that segment.
T is a Point on the perpendicular bisector of segment AB.
[tex] \therefore \overline{TQ} \cong \overline {TR} [/tex]