2x (29 +28y )
That is the answer
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8 + x/2 = -12 (8 + x divided by 2 = -12) *
Answer:
[tex]8 + \frac{1}{2} x = - 12 \\ 16 + x = - 24 \\ x = - 24 - 16 \\ x - 40[/tex]
Can you mark as BREINLEST
I NEED HELP ASAP IT IS DUE AT MIDNIGHT PLEASEEEEEE!!!!
Answer:
A = -2.2
B = -1.7
C = 1.87
D = 19.97
Step-by-step explanation:
A = 7.4 - 9.6 = -2.2
B = -2.2 + 0.5 = -1.7
C = -1.1(-1.7) = 1.87
D = 18.1 + 1.87 = 19.97
Answer:
A = -2.2
B = -1.7
C = 1.87
D = 19.97
Step-by-step explanation:
Find the exact length of the third side.
Answer: 10
Step-by-step explanation:
You just add them together-
Step-by-step explanation:
using Pythagoras theorem :
hyp²= opp² + adj²
x²= 7² + 3²
x² = 49 + 9
x² = 58
take the root of both sides
x = √58
x = 7.62
t < –3 or t > 2 is equivalent to –3 < t < 2. WILL GIVE BRAINLYEST
True
False
Answer: False
Step-by-step explanation:
If t<-3, and t>2, that means that all values less than 3, and all values greater than 2 are true.
In the inequality -3<t<2, only values between -3 and 2 are true, so this means they are not equivalent.
Step-by-step explanation:
t>-3 or t<2
THE STATEMENT ABOVE CONTRADICTS THE GIVEN STATEMENT THEREFORE IT IS FALSE
For each part of the questions below, use the following situation:
You have 15 coins valued at $3.00. Some of the coins are dimes and some are quarters.
What is the first equation that can be written for this situation?
3x=15
What is the second equation that can be written for this situation?
How many dimes do you have?
How many quarters do you have?
Answer:
3x=15 the x is 5
10+5=15
10 quarters
5 dimes
Step-by-step explanation:
Amiya answered 19/20 of questions correctly on her last exam.
What percent of questions did Amiya answer correctly on her last exam?
Answer:
95%
Step-by-step explanation:
19÷20×100=95
Hope it's right
Answer:
[tex]95\ percent[/tex]
Step-by-step explanation:
[tex]We\ know\ that:\\Percentage = Ratio*100\\Or,\\Percentage=\frac{Observation}{Total}*100\\Here,\\No. of\ answers\ Amiya\ gets\ correct=19\\Total\ no.\ of\ answers\ in\ the\ test=20\\Hence,\\Percentage\ of\ answers\ Amiya\ gets\ correct= \frac{19}{20}*100\\=19*5\\=95\ percent\\[/tex]
-5 0 1 5 Select the values that make the inequality u < 1 true.
Answer: 0 and -5
Step-by-step explanation:
Answer:
-5 and 0 make the inequality true.
Step-by-step explanation:
-5 and 0 are less than 1, making 1 and 5 greater than one (so 1 and 5 don't apply to this situation)
I NEED HELP ON THIS ALSO!! Please help ASAP
100ml
Step-by-step explanation:
l think so
Find the area of a circle that has a diameter of 20 cm.
Subtract 38¢ from $5.60. Include the dollar sign and no spaces in your answer.
Answer:
$5.22
Step-by-step explanation:
you would subtract so 5.60-.38=$5.22
Answer:
$5.22
Step-by-step explanation:
$5.22-0.38
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Help please! Its late! Xoxo
Answer:
1)B
Step-by-step explanation:
Can someone please help?!
Answer:
D. m = -15/1
Step-by-step explanation:
Slope Formula-
m = (y2-y1)/(x2-x1)
Using two random points-
(-1, 13) (0,-2)
-1 = x1
13 = y1
0 = x2
-2 = y2
m = (-2 - 13)/(0-(-1))
m = -15/1
find the distance from the given point to each of the following. (4, 7, -5) (a) the xy-plane (b) the yz-plane (c) the xz-plane (d) the x-axis (e) the y-axis (f) the z-axis
[tex]So distance from a) xy plane = |-5| = 5 b) yz plane = |4| = 4c) xz plane = |7| = 7d) x-axis = √[(7)^2+(-5)^2] = √[49+25]=√[74] = 8.6023e) y-axis =√[(-5)^2+(4)^2] = √[25+16] =√[41] = 6.4031f) z-axis = √[(4)^2+(7)^2] = √[16+49] = √[65] = 8.0622[/tex]
What is axis?A Cartesian coordinate system in a plane is a system of coordinates that uniquely identifies each point by a pair of numerical coordinates that are the signed distances from two fixed perpendicular oriented lines to the point, measured in the same unit of length. An axis is a line that is used to sketch, measure, rotate, etc. a curve or a figure. The Cartesian axes in the plane or in space, which are often mutually perpendicular, are the most frequently seen axes. Axes, pronounced "ax-ees," is the plural form of "axis." The phrase is also used to describe a line that passes across a group of aircraft. The line on a graph that passes 0 horizontally (left to right).
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PLEASE HELP!! What is the answer?
solve the right angle trig problem. round to the nearest tenth.
Answer:
x ≈ 16.5
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightGeometry
[Right Triangles Only] SOHCAHTOA[Right Triangles Only] cos∅ = adjacent over hypotenuseStep-by-step explanation:
Step 1: Define
We are given a right triangle. We can use trig to find the missing side length.
Step 2: Identify Variables
POV from the angle measure
Angle = 38°
Adjacent Leg = x
Hypotenuse = 21
Step 3: Solve for x
Substitute [cosine]: cos38° = x/21Isolate x: 21cos38° = xRewrite: x = 21cos38°Evaluate: x = 16.5482Round: x ≈ 16.5MATH HALP PLEEESE I NEEED IT
Answer:
second in first 1 in last and last is 4
Step-by-step explanation:
Answer:
(2x + 3)(x - 7)
Step-by-step explanation:
Given
2x² - 11x - 21
Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term
product = 2 × - 21 = - 42 and sum = - 11
The factors are - 14 and + 3
Use these factors to split the x- term
2x² - 14x + 3x - 21 ( factor the first/second and third/fourth terms )
= 2x(x - 7) + 3(x - 7) ← factor out (x - 7) from each term
= (2x + 3)(x - 7) ← in factored form
#4
Graph the equation.
Y=|x|-2. Let x = -3, -2, -1, 0, 1, 2, 3
Graph of the equation is attached in the following image .
Input is x = - 3 , - 2 , - 1 , 0 , 1 , 2 , 3
Output is y = 1 , 0 , - 1 , - 2 , - 1 , 0 , 1
Since , the given function is a modulus function , graph will be V - shaped .
Modulus Function : A function f ( x ) = | x | is a modulus function , it takes positive value as an output . If x is negative , then - x is the output . It takes the absolute value of a function .
Hence , graph of the equation is attached in the following image .
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ASAP Answer this now
Is the following relation linear, quadratic, or cubic? If it is linear, find the equation. Explain your reasoning and include all of your work in your final answer.
1. Q = { (x,y) : (0,0), (1,2), (2,16), (3, 54), (4, 128), (5,250) }
2. R= { (x,y) : (2,3), (4,4), (6,5), (8,6) }
3. S = { (x,y), : (1,3), (2,9), (3,17), (4,27), (5, 39), (6,53) }
Answer:
Q = { (x,y) : (0,0), (1,2), (2,16), (3, 54), (4, 128), (5,250) } is cubic
R= { (x,y) : (2,3), (4,4), (6,5), (8,6) } is linear
S = { (x,y), : (1,3), (2,9), (3,17), (4,27), (5, 39), (6,53) } is quadratic
Equation of the linear relation is
y = 0.5x + 2
Step-by-step explanation:
A linear equation has the form y = mx + b where m is the slope and b is the y-intercept. Slope is a constant and growth of function is determined by x value
A quadratic equation has the general form y = ax² + bx + c where a b and c are constants. Growth of the function is mostly determined by the square of x
A cubic equation has the general form y = ax³ + bx² + cx + d where a, b and c are constants. The growth of the function is mostly determined by the cube of x value
Looking at the three relations
#1 is obviously cubic since the value of y appears to be determined by the cube of the value of x. Specifically, when x = 0, y = 0/. When x =1, y = 2 but when x =2, y =16 and 16 is 2x³ = 2(2³) = 2 x 8
Looking at x =3, 2(3³) = 2(27) = 54
So this is a cubic function
#2 is obviously a linear function When x increases by 2, y increases by 1 so it is a linear growth
#3 In this equation we can see that the y value appears to be controlled by the square of x. The specific equation is y = x² + 3x -1
For the linear equation, find the slope from the first two points
m = (4-3)/(4-2) = 1/2 = 0.5
So the equation is y = 0.5x + b
To find b, use the coordinates of any point. Let's choose (4,4)
At x = 4, y = 4 so
4 = (0.5)4 + b = 2+b yielding b = 2
So the equation is y = 0.5x + 2
Relation Q is not linear, relation R is linear with the equation y = (1/2)x + 2, and relation S is not linear.
1: Q = { (0,0), (1,2), (2,16), (3,54), (4,128), (5,250) }
To determine if this relation is linear, quadratic, or cubic,
Examine the differences between the y-values.
Calculate the differences for the given data:
Difference in y-values:
(2-0) = 2
(16-2) = 14
(54-16) = 38
(128-54) = 74
(250-128) = 122
Looking at the differences,
we can see that they are not constant.
In a linear relation, the differences between the y-values would be constant.
Therefore, we can conclude that this relation is not linear.
2: R = { (2,3), (4,4), (6,5), (8,6) }
Similar to the previous relation, let's calculate the differences:
Difference in y-values:
(4-3) = 1
(6-4) = 2
(8-6) = 2
In this case, the differences between the y-values are constant
(both are 2). This indicates a linear relation.
To find the equation, we can use the slope-intercept form (y = mx + b). Let's choose any two points from the relation, for example, (2,3) and (4,4):
Slope (m) = (4-3) / (4-2) = 1/2
m = 1/2
Now, let's plug in the values of one point (2,3) and the slope into the equation:
y = mx + b
3 = (1/2) x 2 + b
3 = 1 + b
b = 2
Therefore, the equation for this linear relation is y = (1/2)x + 2.
3: S = { (1,3), (2,9), (3,17), (4,27), (5,39), (6,53) }
Again, calculate the differences:
Difference in y-values:
(9-3) = 6
(17-9) = 8
(27-17) = 10
(39-27) = 12
(53-39) = 14
The differences between the y-values are not constant, indicating that this relation is not linear.
Hence,
Relation Q is not linear.
Relation R is linear, with the equation y = (1/2)x + 2.
Relation S is not linear.
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Can someone help me with this one question please thank you
Rearrange t2=3x+1 to make x the subject
the equation t² = 3 x + 1 will be written as x = t² / 3 - 1 / 3 with the subject as x.
We are given an equation:
t² = 3 x + 1
We need to solve it so that the subject becomes x.
For this, we will first subtract 1 from both the sides:
t² - 1 = 3 x + 1 - 1
3 x = t² - 1
Now, we will divide both the sides by 3
3 x / 3 = (t² - 1) / 3
x = t² / 3 - 1 / 3
So, the subject is being made as x now.
Therefore, we get that, the equation t² = 3 x + 1 will be written as x = t² / 3 - 1 / 3 with the subject as x.
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Find f(3) for f(x)=−5x−2
A. -10
B. -15
C. 13
D. -17
Answer:
f(3) = -17
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Function NotationStep-by-step explanation:
Step 1: Define
f(x) = -5x - 2
f(3) is x = 3
Step 2: Evaluate
Substitute in x: f(3) = -5(3) - 2Multiply: f(3) = -15 - 2Subtract: f(3) = -17I thought the answer was 110 but the answer was so wrong so I’m doing something wrong. Can someone please help me?
Answer:
b= 50
Step-by-step explanation:
the entire angle equals 80 degrees and a portion of it equals 30. therefore the portion that equals b = 50 because 30+50=80 hope this helps.
which points is of the ordered pair (-4,2)
Answer:2-4
Step-by-step explanation:
Answer:
2-4
Step-by-step explanation:
now please answer my question
Can someone help me pls
Answer:
432 ft^2
Step-by-step explanation:
Answer:
432
Step-by-step explanation:
Lets plug it into the formula
b1 should be the horizontal line on the bottom horizontal line and b2 should be the top horizontal line
so we get b1 = 28 and b2 = 20
according to the formula we should add b1 and b2, getting us 48.
divide 48 by 2: we get 24
24 times h, or the hieght, or 18 is 432
so the answer is 432
could you pls give me brainliest? I only need 1 more brainliest to rank up ;-;
Tom paid $16 for 4 pounds of jellybeans. How much did he pay for each pound? Write the expression
Answer: 4 dollars/ lbs
Step-by-step explanation:
Tom paid 16 dollars for 4 lbs
16/4=4 dollars/ lbs
Answer:
$4
Step-by-step explanation:
$16 for 4 pounds so divide 16 by 4 to find how much was one pound:
16/4 = 4
I pound cost $4
A line goes through the points (-4,6) and (-2,3). A line perpendicular to
that line is:
Answer: A line with a slope of 2
Step-by-step explanation: the slope of the line is -1/2 so the negative reciprcal of the slope is 2 (It would be perpendicular to it)
i used m=y2-y2/x2-x1 to figure ou the slope and -(x/y) as the negative reciprcal for the perpendicular line.
is y=x^3 one to one?
Answer: Yes
Step-by-step explanation:
Answer:
Its graph is a parabola, and many horizontal lines cut the parabola twice. The function f(x)=x 3, on the other hand, IS one-to-one. If two real numbers have the same cube, they are equal. The horizontal line test is also easy to apply.
Step-by-step explanation:
OMGGG PLEASE I NEED HELPPPPPPP
Answer:
[tex]\sqrt{3}[/tex], 2, 1
Step-by-step explanation:
sin30=a/h=1/2
a=length of opposite side a =1
h=length of hypotenuse h=2
tan30=a/b=1/√3
a=length of opposite side a =1
b=length of adjacent side a =[tex]\sqrt{3}[/tex]
hope this helps
Answer:
i dont really know
Step-by-step explanation:
What is the simplified form of 1/x-1/y/1/x+1/y?
a. y+x/y-x
b. y-x/y+x
c.x-y/x+y
d.x+y/x-y
Answer:
b
Step-by-step explanation: