Answer:
a,c,e.
Step-by-step explanation:
2x+3x+4(2) is 5x+8. C is also. 2(2x) is 4x. 2(4) is 8. Add x is 5x+8
I need help please and thank you and show work
Answer:
Ivy is correct
Step-by-step explanation:
the perimeter of a parallelogram can be written as P= 2(a+b), where a and b are the lengths of the sides of the parallelogram.
since the parallelogram has been dilated by a scale factor of 0.6, we multiple the original side lengths by 0.6.
12 × 0.6 = 7.2
16 × 0.6 = 9.6
Plug into the equation
P=2(7.2+9.6)
P=2(16.8)
P= 33.6
You can also solve by plugging in the original values and multiplying the answer by 0.6.
P=2(12+16)(0.6)
P=2(28)(0.6)
P=(56)(0.6)
P=33.6
A cylinder has a height of 20 inches and a radius of 19 inches. What is its volume? Use ≈ 3.14 and round your answer to the nearest hundredth.?????????HELP PLEASEEEEEEEEEEE
Answer:
22670.8 :D
Step-by-step explanation:
Volume of a cylinder: 3.12(r^2)h
Now lets solve :)
3.14(19^2)20
3.14(361)20
(1133.54)20
22670.8 :)
Have an amazing day!!
Please rate and mark brainliest!!
hello please help with number 14 and 15 thank you 20 points and will be brainliest if its right thank you
14)
The missing value is 42.
15)
The missing value is 17.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
14)
0.5 x ( 8 + ___ ) = 25
We will write in terms of x.
0.5 x (8 + x ) = 25
8 + x = 25/0.5
8 + x = 50
x = 50 - 8
x = 42
15)
165 = 5 x ( 16 + __ )
We will write in terms of x.
165 = 5 x ( 16 + x )
165/5 = 16 + x
x = 33 - 16
x = 17
Thus,
The missing value of x is 42 and 17.
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what two numbers multiply to get -8 and add to get 4?
Answer:
-2-2√3, -2+2√3
Step-by-step explanation:
Let x and y be two numbers.
Let x represent one of the numbers. Then the other number is -4-x. We want the product to be -8:
x(-4-x) = -8
-4x -x^2 = -8 . . . . . eliminate parentheses
x^2 +4x = 8 . . . . . . multiply by -1
x^2 +4x +4 = 12 . . . add 4 to complete the square
(x +2)^2 = 12
x +2 = ±√12 = ±2√3
x = -2±2√3
What is the midpoint of XY if X is located at (-12, 8) and Y is located at (10, 17)
A. (-2. 25)
B. (-1, 12 5)
C. (-2, 11.5)
D. (32, 26)
E. None of the above
Answer: B
Step-by-step explanation:
Which correctly shows this equation
solved for w?
The equation solved for w is:
w = A/l
The correct option is A.
What is an equation?A pair of algebraic equations with the equal symbol (=) in the center and the same value are referred to as an equation.
Starting with the equation:
A/l = lw/l
We can simplify it by multiplying both sides by l:
A = lw
To solve for w, we need to isolate it on one side of the equation.
We can do this by dividing both sides by l:
A/l = w
Therefore, the required equation is A/l = w.
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Suppose ABCD is a parallelogram. If AB = 9x + 2, CD = 12x - 4, BC = x + 7, determine the length of AD.
Need help asap
======================================================
Explanation:
For any parallelogram, the opposite sides are parallel and are the same length.
AB = CD
9x+2 = 12x-4
2+4 = 12x-9x
6 = 3x
x = 6/3
x = 2
Which leads to
AB = 9x+2 = 9(2)+2 = 20CD = 12x-4 = 12(2)-4 = 20BC = x+7 = 2+7 = 9Side AD is opposite BC, so AD = BC = 9
what is 20 - 10
what is 20+ 10
Answer:
20-10=20
20+10=30
Step-by-step explanation:
For 20-10 let's assume John has 20 apples. He gives 10 to Carol.
Understand that subtraction can mean taking away or finding a difference. For example, 13 – 8 can mean, “How many are left when you take 8 away from 13?” Or, 13 – 8 can be interpreted as, “How much more is 13 than 8?” Understand that subtraction is the opposite of addition. Know the addition facts up to 9 + 9.
If john has 20 apples and gives 10 to carol, he will have 10 left.
For 20+10, we do the opposite operation, which is addition.
Addition is finding the total value of two or more numbers. Addition is shown using the + symbol in maths sums.
If john has 20 apples and buys 10 more, he will have 30 apples.
Which medical professional or service treats severe medical needs?
emergency room
pregnancy center
medical specialist
general practitioner
Answer:
emergency room
Step-by-step explanation:
well the most severe medical cases come from immediate accidents and for that you go to the emergency room
(correct me if I'm wrong)
Emergency room treats severe medical needs.
Given,
Treatment of severe medical needs.
Now,
Emergency room treats the person having critical illness which requires instant medication .
For example :
If a person met with an accident then the medication must be provided instantly so that the person can survive . Instant medication will be provided under emergency rooms .
Therefore option A is correct .
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Help me please, (b)
Answer:Aob is in the center
Step-by-step explanation:You see x and y are parallel across from each other, and u v are the same. A O B is recorded in the center.
2
1) You have a 24 foot round swimming pool
that is four feet deep. What is the surface
area of the sides and bottom of the pool?
Round to the nearest tenth of a foot.
Answer:
The surface area is 301.4ft
Step-by-step explanation:
To find the surface area of a circular pool, you multiply the diameter and depth and then multiply by 3.14.
24*4 = 96
96*3.14 = 301.44
1/2 of 4/5 as a fraction
Answer:
4/10 is the answer
What is the scale factor? Multiple choice
Answer:
0.753/4post/preStep-by-step explanation:
In general, a scale factor is applied to an original (pre) to obtain an image (post). It is the ratio post/pre that expresses the relationship between image dimensions and original dimensions.
Here, that post/pre ratio is 3/4 = 0.75.
Dr. Smith, a biology professor at Bradford University, has decided to give his classes a standardized biology exam that is nationally normed. This indicates that the normal distribution is an appropriate approximation for the probability distribution of students’ scores on this exam. The probability distribution of students’ scores on this standardized exam can be estimated using the normal distribution shown below.
X
X
Inflection Point
Inflection Point
70
78
86
State the mean of the distribution of the biology exam scores.
State the standard deviation of the distribution of the biology exam scores.
Grading Curve Option I
Originally, Dr. Smith decides to curve his students’ exam grades as follows.
Students whose scores are at or above the percentile will receive an A.
Students whose scores are in the – percentiles will receive a B.
Students whose scores are in the – percentiles will receive a C.
Students whose scores are in the – percentiles will receive a D.
Students whose scores are below the percentile will receive an F.
Find the z-scores that correspond to the following percentiles.
percentile
percentile
percentile
percentile
Using that information, find the exam scores that correspond to the curved grading scale. Assume that the exam scores range from 0 to 100. (Round to the nearest whole number.)
A: –
B: –
C: –
D: –
F:
For inflection Points of
707886The mean and standard deviation are is mathematically given as
x=78
sigma=8
What is Normal distribution?Normal distribution is simply a symmetrical bell-shaped graph that displays the distribution of numerous random variables.
Generally, the equation for the mean is mathematically given as
x=total sum /amount
Therefore
x=70+78+80/3
x=78
In conclusion, Inflexion point for normal distribution is given as
[tex]I=\mu+\sigma\\\\\mu+\sigma=86[/tex]
Also
[tex]\mu-\sigma=70[/tex]
Therefore
[tex]78+\d\sigma=86[/tex]
sigma=8
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Witch expression makes the equation true for all values of x? 15x - 15 = 5(?)
A. 3x - 3
B. 3x- 15
C.5x-5
D.12x-1
The expression that will make the algebraic equation true for all values of x is: A. 3x - 3.
What is a True Algebraic Equation?An algebraic equation is an equation where for a value of x, the right side and the left side of the equation must be balanced.
Given the algebraic equation, 15x - 15 = 5(?)
The missing expression, is 3x - 3, because:
15x - 15 = 5(3x - 3)
Open the bracket
15x - 15 = 15x - 15
Both sides are equal.
Therefore, the expression that will make the algebraic equation true for all values of x is: A. 3x - 3.
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100 points !! 3 answers !!
Instructions: Find the missing side. Round your answer to the nearest tenth.
#1
cos28=x/25x=25cos28x=22.1#2
cos26=x/15x=15cos26x=16.7#3
tan41=x/16x=16tan41x=14Answer:
Trigonometric ratios
[tex]\sf \sin(\theta)=\dfrac{O}{H}\quad\cos(\theta)=\dfrac{A}{H}\quad\tan(\theta)=\dfrac{O}{A}[/tex]
where:
[tex]\theta[/tex] is the angleO is the side opposite the angleA is the side adjacent the angleH is the hypotenuseGiven:
[tex]\theta[/tex] = 28°A = xH = 25[tex]\implies \sf \cos(28^{\circ})=\dfrac{x}{25}[/tex]
[tex]\implies \sf x=25cos(28^{\circ})[/tex]
[tex]\implies \sf x=22.1\:(nearest\:tenth)[/tex]
Given:
[tex]\theta[/tex] = 26°A = 15H = x[tex]\implies \sf \cos(26^{\circ})=\dfrac{15}{x}[/tex]
[tex]\implies \sf x=\dfrac{15}{\cos(26^{\circ})}[/tex]
[tex]\implies \sf x=16.7\:(nearest\:tenth)[/tex]
Given:
[tex]\theta[/tex] = 41°O = xA = 16[tex]\implies \sf \tan(41^{\circ})=\dfrac{x}{16}[/tex]
[tex]\implies \sf x=16\tan(41^{\circ})[/tex]
[tex]\implies \sf x=13.9\:(nearest\:tenth)[/tex]
i do not know this answer
The value of the provided function 14g², at the point g equal to negative 1 is 14, when this value is put in the function.
How to evaluate the value of a function at a point?To find the value of a function at a particular point, the value of the point has to be put on the place of a variable in the function and simplify the equation.
To evaluate the value of a function at a particular point, follow the steps given below.
Write down the function.Put the value of point in place of variable. Simplify the equation to find the value.The function given in the problem is,
[tex]f(g)=14g^2[/tex]
Here, the value of the function has to evaluate at g=-1. Put the value of g in the above function as,
[tex]f(-1)=14(-1)^2\\[/tex]
The square of -1 is 1. Thus,
[tex]f(-1)=14\times1\\f(-1)=14[/tex]
Hence, the value of the provided function 14g², at the point g equal to negative 1 is 14, when this value is put in the function.
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help me solve and explain this
Answer:
B because the length of R to U is 6x5
Drag the tiles to the correct boxes to complete the pairs.
Match each object with the characteristic it represents.
a broom handle
the letter T
a sun ray
a cookie crumb
the horizon
rows of seats on
an airplane
ray
line segment
point
line
perpendicular lines
parallel lines
Answer:
a broom handle - line segment
the letter T - perpendicular lines
a sun ray - ray
a cookie crumb - point
the horizon - line
row of seats of airplane - parallel lines
Step-by-step explanation:
a broom handle is straight and has a beginning and end, same goes for a line segment
the letter T has two lines that intersect with one another, these lines are perpendicular
a sun ray is well, a ray
a cookie crumb is small and round, similar to a point
lines do not have a beginning or end, like the horizon line
and the row of seats on an airplane all line up together like lines that are parallel.
Hope this helps :)
What is the perimeter of the polygon below?
The perimeter of the polygon will be 30 units. Then the correct option is D.
What is the perimeter of the regular polygon?All the sides of the regular polygon are congruent to each other. The perimeter of the regular polygon of n sides will be the product of the number of the side and the side length of the regular polygon.
P = (Side length) x n
The sides length of the polygon is 10 units, 5 units, 3 units, 2.5 units, 7 units, and 2.5 units.
Then the perimeter of the polygon is given as,
P = 10 + 5 + 3 + 2.5 + 7 + 2.5
P = 30 units
The perimeter of the polygon will be 30 units. Then the correct option is D.
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what is f(x)25x2+9x+10
3. Erin is an architect who is currently constructing a new building. She is looking at the building's new blueprints. a) Erin needs to find the distance around the patio in order to finish construction soon and build a fence. What is the distance around the patio? Show your steps. b) Erin now needs to find the area of this part of the building in order to buy tiles for the floor plan, which is shown on the blueprints. What is the area of the floor plan? Show your steps
Answer:
a is when you need to go from 12 to 5 so is this flvs?
Step-by-step explanation:
Answer:
a)
first you need to find the missing lengths the first one would be
12-7=5
and the second one you will need to find the circumference
π*4*2=8π
and now you add
12+7+5+5+3+8π=32+8π
so the perimeter is 32+8π
b)
so lets make some sections
one of the sections will be a rectangle that is 8 in length and 7 in width
8*7=56units^2
and another reactangle that is 3 in length and 5 in width
3*5=15units^2
and then we need to find the area for the semicircle with a raidius of 4
π*4^2=16πunits^2
them divide by 2
(16π)/2=8pi
so the area would be 71+8π
Step-by-step explanation:
Helpppp plssss!!!!!!!!!
Answer:
according to my calculations syour mada
Isabella is calculating the interest earned on a deposit of $3,000 in an account that earns 4% compound interest after 6 years.
$3,000 in an account that earns 4% compound interest after 6 years.
solution:[tex]p = 3000[/tex]
[tex]r = 4[/tex]
[tex]t = 6years[/tex]
[tex]interest = \frac{prt}{100} [/tex]
[tex] = \frac{3000 \times 6 \times 4}{100} [/tex]
[tex] = 720[/tex]
therefore, $720 is the current amount of interest.
Find the supplement of an angle that measures 20 degrees.
Find the slope of the line that is parallel and perpendicular to the following equation.
2x - y = -2
Answer:
slope in parallel = 2
slope in perpendicular = [tex]\sf \bold{-\frac{1}{2} }[/tex]
y intercept = (0, 2)
Rewrite in slope intercept form:
slope intercept form: y = mx + b || where "m" is slope and "b" is y-intercept
2x - y = -2-y = -2 - 2xy = 2x + 2 ** identify m and b _ _ _ m = 2, b = 2 **y-intercept: 2 --- as "b" is [+2] then x will be always 0 at y-intercept
y-intercept coordinates: (0, 2)slope is same when parallel
slope in parallel = 2 --- as "m" is [+2]perpendicular slope is negative reciprocal of the parallel slope
m1 is the parallel slope and m2 is the perpendicular slopem1 * m2 = -12 * m2 = -1m2 = -1/2 --- this is the slope of perpendicular lineConvert to slope intercept form
2x-y=-2y=2x+2Slope:-
m=2Parallel lines have equal slope
Slope of the perpendicular line=-1/2
(Please someone help me!) (No links!)
What do I put??
Answer:
X=16
Missing angle = 48
Step-by-step explanation:
solve this 6(x+4)+1=x+5
[tex] \sf :\implies \quad {\pmb{x = - 4}}[/tex]
Solution:Let's solve the given equation step by step ;
[tex] \sf :\implies \quad 6(x + 4) + 1 = x + 5[/tex]
The first step is to distribute the equation:
[tex] \sf :\implies \quad (6 \times x ) + (6 \times 4) + 1 = x + 5[/tex]
[tex] \sf :\implies \quad 6x + 24 + 1 = x + 5[/tex]
[tex] \sf :\implies \quad 6x + 25 = x + 5[/tex]
Second step is to combine the like terms:
[tex] \sf :\implies \quad 6x + 25 - x = 5[/tex]
[tex] \sf :\implies \quad( 6x - x) + 25 = 5[/tex]
[tex] \sf :\implies \quad 5x + 25 = 5[/tex]
Now, subtract 25 from both sides :
[tex] \sf :\implies \quad 5x + 25 - 25 = 5 - 25[/tex]
[tex] \sf :\implies \quad 5x = - 20[/tex]
Divide both sides by 5:
[tex] \sf :\implies \quad \dfrac{5x}{5} = - \dfrac{20}{5} [/tex]
[tex] \sf :\implies \quad \boxed{ \pmb{\sf x = - 4}}[/tex]
Hence, your answer is ; x = -4
6. A number solid with faces labeled 1 through 16 is rolled. What is the probability that the number 16 will appear facing up when the solid is rolled? Record the answer as a simplified fraction.
Answer:
1/16 chance that it will land on 16 because there are 16 faces
Answer:
1/16.
Step-by-step explanation:
That will be 1 chance in 16.
5.5 - Solving Quadratic Equations - Perfect Square Trinomials and Difference of Squares
Factor the following if they are a perfect square trinomial or a difference of squares.
a) x^2 + 24x + 144 = 0
b) 9x^2 - 36x + 36 = 0
c) x^2 - 64 = 0
d) 4x^2 - 81 = 0
Answer:
Step-by-step explanation:
(a²-2ab+b²)=(a-b)²
a²+2ab+b²=(a+b)²
i solve b and d
(b)
9x²-36x+36=0
(3x)²+2×3x×-6+(-6)²=(3x-6)²
(d)
a²-b²=(a+b)(a-b)
4x²-81=0
4x²-81=(2x)²-9²=(2x+9)(2x-9)