Answers
√6= 2.45 6+2.45=8.45 8.45 and 2/3 =9.12
answer to question 3 is 6+ √6
The fourth one idk if im right or not but im pretty sure its x³ - 12x² + 37x = 0
Descartes' rule of sign is used to determine the number of real zeros of a polynomial function. It tells us that the number of positive real zeroes in a polynomial function f(x) is the same or less than by an even numbers as the number of changes in the sign of the coefficients.
Related Questions
You go shopping at a local department store with your friend and cousin. You buy one pair of jeans, four pairs of shorts, and two shirts for $84. Your friend buys two pairs of jeans, one pair of shorts and three shirts for $76. Your cousin buys one pair of jeans, two pairs of shorts and one shirt for $52. Find the cost of one pair of shorts.
Answers
Answer:
So, cost of 1 pair of shorts =$12
Step-by-step explanation:
Let cost of 1 pair of jeans =x
Cost 1pair of shorts =y
cost of 1 pair of shirts=z
We can set up equations as
x+4 y+2 z=84
2 x+1 y+3 z=76
x+2 y+z=52
Solve the equations for y.
Take first and second equations multiply first equation by -2 and add it with second equation.
-2 x-8 y-4 z=-168
2 x+1 y+3 z=76
Add them, it gives -7 y-z =-92
Now, take second and third equations, multiply the third equation by -2 then add them together.
2 x +1 y +3 z =76
-2 x-4 y-2 z=-104
Add them together,
-3 y +z =-28
Now, take the -7 y -z =-92 and -3 y +z =-28
Add the equations
-10 y = -120
Divide both sides by -10
y =12.
So, cost of 1 pair of shorts =$12
z=8
what is 3x-2-7x = 10x + 4?
Answers
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
3x−2−7x=10x+4
3x+−2+−7x=10x+4
(3x+−7x)+(−2)=10x+4(Combine Like Terms)
−4x+−2=10x+4
−4x−2=10x+4
Step 2: Subtract 10x from both sides.
−4x−2−10x=10x+4−10x
−14x−2=4
Step 3: Add 2 to both sides.
−14x−2+2=4+2
−14x=6
Step 4: Divide both sides by -14.
−14x−14=6−14
x=−3/7
Answer:
x=−3/7
The value of x is -3/7.
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given:
3x-2-7x = 10x + 4
Now, solving for x
3x-2-7x = 10x + 4
-4x - 2= 10x + 4
-4x - 10x = 4 + 2
-14x = 6
x= -6/14
c= -3/7
Hence, the value of x is -3/7.
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2(3d – 4) + 2 < 4 + 6d - 15
Answers
Answer: no solution
Step-by-step explanation:
CALCULATOR COLOR THEME 0 ZOOM 2. Danielle wants to translate triangle XYZ so that vertex Yis mov (-4,2) to (0,-3). Which of the following mappings can be used to coordinates of Xand Z?
Answers
Answer:The answer is (x,y)->(+4,y-5)
Step-by-step explanation:
since -4 to 0 is + 4 and 2 to -3 is -5
The correct mapping is (x, y) ⇒ (x + 4, y - 5)
Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, translation and dilation.
Translation is the movement of a point up, down, right or left in the coordinate plane. If a point A(x, y) is moved a units right and b units down, the new location would be at A(x + a, y - b).
Since the vertex Y(-4, 2) was translated to Y'(0, -3), hence the triangle was translated 4 units to the right (-4 + 4 = 0) and 5 units down (2 - 5 = -3). This can be represented by the mapping:
(x, y) ⇒ (x + 4, y - 5)
Therefore to find x and z coordinates, use the mapping:
(x, y) ⇒ (x + 4, y - 5)
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Which statements are true? Select the five correct answers.
O √1.8 1
O √1.8 2
O √1.9 - √1.8 > 0.1
Answers
Answer:
it is A,B,C,E
Step-by-step explanation:
if thease our wrong then i am sorry i took the quiz 3 weeks ago and cannot quite remember what choices they were but i am pretty sure it was those if not then leave it to my brain to not remember
The simplest form of the function is f(x) = x2. The graph is a parabola often called the basic parabola.
What is a parabola?A parabola is an approximately U-shaped, mirror-symmetrical plane curve in mathematics. It corresponds to a number of seemingly unrelated mathematical descriptions, all of which can be shown to define the same curves. A parabola can be described using a point and a line.
here, we have,
Three different parabolas exist. Vertex form, standard form, and intercept form are the three forms. You can access a unique key feature for the graph on each form.
Any point on a parabola is at an equal distance from both the focus, a fixed point, and the directrix, a fixed straight line. A parabola is a U-shaped plane curve.
Solve f{x}=x-2?
f(x)=x-2 x∈R
x≤0
x-2≤2
Range of f(x)=[∞,2)
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complete question:
9. Which of the following statements are true? Check the boxes of the true statements.
and, attached below.
how do you do this step by step
Answers
Answer:
x = 12
Step-by-step explanation:
30 degrees and 4x+2 are equal to 8+6x
First, write a formula or expression:
30 + 4x+2 = 8+6x
simplify this by collecting like terms
32 + 4x = 8+6x (minus 6x from both sides)
32 - 2x = 8 (minus 32 from both sides)
-2x = -24 (divide by -2)
x = 12
now sub into the formula:
30 + (4 × 12 +2) = 8 + 6 × 12
80 = 80
rounded to the nearest tenths place : 2.03
Answers
Answer:
2....................
Answer:
rounded to the nearest tenths place : 2.03 is 2.0
Step-by-step explanation:
it is because 3 is lower than 5 so the number would decrease and it will be 2.0
8 POINTS!! which of the transformations that could take Figure P to Figure Q.
Answers
I need help grades are almost due ......
Answers
Answer:
2500
i think
Step-by-step explanation:
Find the area of the shape.
Answers
(*−3m^4)^2 = 9m^8−48m^4w+64w^2
Answers
Answer: what-
Step-by-step explanation:
Which fraction is equivalent to this decimal?
0.16 repeating
A. 1/16
B. 16/100
C. 1/6
D. 1/3
Answers
Answer: B
16/100 = 0.16
0.16 is 16/100 exactly.
1/16 = 0.000625
1/6 = 16.666...
1/3 = 33.33...
So, the answer is 16/100.
Hope this helps!
The fraction is equivalent to the decimal number 0.16 will be 16/100. Then the correct option is B.
What is an equivalent expression?The equivalent is the expression that is in different forms but is equal to the same value.
The decimal number is the sum of a whole number and part of the fraction number. The fraction number is greater than zero but less than one.
The decimal number is given below.
⇒ 0.16
The fraction is equivalent to the decimal number 0.16 will be
Multiply and divide the number by 100. Then the fraction number will be
⇒ 0.16 x 100 / 100
⇒ 16 / 100
The fraction is equivalent to the decimal number 0.16 will be 16/100. Then the correct option is B.
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Wilbur and Mike are selling fruit for a school fundraiser. Customers can buy small boxes of grapefruit and large boxes of grapefruit. Wilbur sold 3 small boxes of grapefruit
and 14 large boxes of grapefruit for a total of $306. Mike sold 7 small boxes of grapefruit and 7 large boxes of grapefruit for a total of $252. What is the cost each of one
small box of grapefruit and one large box of grapefru
Answers
Answer:
both size boxes are $18 each
Step-by-step explanation:
Let x and y represent the costs of the small and large boxes, respectively. Then the two sales are ...
3x +14y = 306
7x +7y = 252
Doubling the second equation and subtracting the first, we have ...
2(7x +7y) -(3x +14y) = 2(252) -(306)
11x = 198
x = 18
y = 252/7 -x = 36 -18 = 18
A small box costs $18, as does a large box.
Answer:
both size boxes are $18 each
Step-by-step explanation:
Let x and y represent the costs of the small and large boxes, respectively. Then the two sales are ...
3x +14y = 306
7x +7y = 252
Doubling the second equation and subtracting the first, we have ...
2(7x +7y) -(3x +14y) = 2(252) -(306)
11x = 198
x = 18
y = 252/7 -x = 36 -18 = 18
A small box costs $18, as does a large box.
my teacher says theres 3 correct answers
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1. m/ABC=
2. m/EBD=
3. m/ABE=
Answers
Answer:
sorry
Step-by-step explanation:
I dont know.how to do these. The teacher doesn't necessarily teach us how to do it.
Answers
Equation for quadratic function is
y = a (x-h)^2 + k
To get:
X-intercepts: any point that touches the x-axis
Axis of symmetry: x = opposite of h
Vertex: (opposite of h,k)
Y-intercept: any point that touches the y-axis
Extra Point: i think you can get this by finding a point from your graph
Domain: (-infinity,infinity)
Range: [min,infinity) or (-infinity,max)
If the a is fraction, the graph is compress
If the concave is down, the value is negative. If the concave is up, the value is positive.
Concave up is absolute minimum. Concave down is absolute max.
Positive a means concave up. Negative a means concave down
pleas e help me quickly !!
Answers
Answer:
100
Step-by-step explanation:
Just so you know, there is a thing called calculator
You should really get one if you are asking such questions
Or maybe, IDK maybe DON'T BE LAZY AND LEARN TO DO SIMPLE CALCULATIONS
Hii om gosh so I am having a rough time trying to solve this problem for geometry. If you can tell me if what I have so far is right and what else I need, I’d really really appreciate it!!!
“3. Solve for x. Do not forget the statements and reasons.”
Answers
Answer:
x = 6
Step-by-step explanation:
In order to find the value of x, first we need to prove the triangles PQS and RQS as congruent. Let us do it.
[tex] In\: \triangle PQS \:\& \:\triangle RQS\\\\
PS \cong SR.... (given) \\\\
\angle PSQ \cong\angle RQS... (\because QS\perp PR) \\\\
QS \cong QS... (Common \: side) \\\\
\therefore \triangle PQS \cong \triangle RQS.. (SAS \: Postulate) \\\\
\therefore PQ = QR... (BY\:CSCT) \\\\
\therefore 2x + 15 = 5x - 3\\\\
\therefore 2x - 5x = - 3 - 15\\\\
\therefore - 3x = - 18\\\\
\therefore x =\frac{-18}{-3}\\\\
\huge \red {\boxed {\therefore x = 6}} [/tex]
Both sides need to equal out to the same number
2•6 = 12
12+15= 27
5•6= 30
30-3= 27
Both sides equal out to the same number so 6 would be the correct answer.
Sorry I’m not very good at explaining things I hope this helps!!
Can someone tell me if idid this right i’m confused.
Answers
i need to know asap
Answers
Answer:
16/25 = 0.64
6/7 = 0.857142
Step-by-step explanation:
Convert the fraction to a decimal by dividing the numerator by the denominator.
Sasha can make the scarves in 8 hours. At this rate, how many can you earn in 28 hours?
Answers
Answer: you can make 3 full scarves in 24 hours .
Step-by-step explanation:
A deposit of $10,000 is made into an account that earns 6% interest. Use
your simple interest formula, I=Prt, to calculate the balance after 15 years
Answers
Answer:
$19,000
Step-by-step explanation:
The balance is the sum of the principal amount and the interest it earns:
A = P + I
A = P + Prt
A = P(1 +rt)
A = $10,000(1 +.06×15)
A = $19,000 . . . balance after 15 years
. Ms. Ache is paid $1300 per week but is fined $100 each day she is late to work. Ms. Ache wants to make at least $3,000 over the next three weeks so she can take a vacation. Over the next three weeks, what is the maximum number of days she can be late to work and still reach her goal of making at least $3000?
Answers
Answer:
1250(3) = 3750
3750 - 100d ≥ 3000
-100d ≥ -750
d ≤ 7.5
She can miss no more than 7 days to make $3000.
Step-by-step explanation:
If 10% of x is 20 what is 23% of x
Answers
Answer:
46 (23%)
Step-by-step explanation:
If 10% of x is 20, we can assume that 100% of x is 200. This is because since 10% is such a nice number to work with, we can simply add a zero to the end of it and the number. Now, we can see that 50% is 100 and 25% is 50. 20% is 40 and 10% is 20. 5% is 10 and 1% is 2. That being said, we need to do 50% + 3%. Which leaves us with 50 (25%) - 4 (2%). That being said, the answer is 46 (23%).
A = πab/4 solve for b
Answers
Answer:
4A/ (πa) = b
Step-by-step explanation:
A = πab/4
Multiply each side by 4
4A = 4πab/4
4A = πab
Divide each side by πa
4A/(πa) = πab/ πa
4A/ (πa) = b
convert 171 lbs into kg
Answers
hope this helped!
The endpoints of segment MP areM(-2,-4) and P(8,11) . If K portions MP in a ratios of MK:KP= 1:4, what are the coordinates of K?
Answers
Answer:
The coordinates of k are (-2,-1)
Step-by-step explanation:
Here, we are interested in calculating the coordinates of point k.
Mathematically, we will use the internal division formula for this;
This would be;
(x,y) =( nx1 + mx2)/(m + n), (ny1 + my2)/(m + n)
where m = 1 , n = 4
x1 = -2 , x2 = 8
y1 = -4 , y2 = 11
we now make the substitutions into the formula;
(x,y) = 4(-2) + 1(-2)/(1+4) , 4(-4) + 1(11)/(4 + 1)
(x,y) = (-8-2)/5 , (-16 + 11)/5
(x,y) = -10/5 , -5/5
(x,y) = (-2, -1)
Write the expression in standard form.
(6f -3 + 2g)-(-4g + 2)
[a]
Answers
Answer:
6f + 6g -5
Step-by-step explanation:
(6f - 3 + 2g) - (-4g + 2)
= 6f - 3 +2g + 4g -2
= 6f + 6g -5
Let the function f be defined by f(x) = 12-5x
What value of a will make the equation f(a) = 6 true?
6/5
-18
-13
5/6
Answers
Answer:
6/5
Step-by-step explanation:
given that f(a) = 6
using x = a
f(x) = 12-5x
f(a) = 12 - 5a
since f(a) = 6
6 = 12 - 5 a
6 - 12 = 12 - 5a - 12
= -6 = -5a
= -6/-5 = -5a/-5
= a = 6/5
value of a is 6/5
-8x - 5= -1 when x =2
Answers
Answer:
= -21
Step-by-step explanation:
i did it on a calculator
