option A IS correct option.
an isosceles triangle has two sides of equal length. The length of one of the equal sides is 2 ft more than 4 times the length of the third side. Find the length of each side when the perimeter is 22 ft. The length of each equal side is? length of the third side?
the length of each equal side is 10 ft
the length of the third side is 2 ft
let x be the length of the third side the equal sides are 4x + 2
given perimeter == 22, then
x + 4x + 2 + 4x + 2 = 22
9x + 4 = 22 ( subtract 4 from both sides )
9x = 18 ( divide both sides by 9 )
x = 2 and 4x + 2= 10
The length of the third side (base) of the isosceles triangle is 2 feet, and the other two equal sides are each 10 feet long, with the perimeter totaling 22 feet.
To solve for the lengths of the sides of an isosceles triangle given its perimeter, we can set up an equation. Let's denote the length of the third side (base) as x feet.
Since the triangle is isosceles, we know that the other two sides (legs) have equal lengths, each being 2 feet more than 4 times the length of the third side. Therefore, these equal sides are each 4x + 2 feet long. The perimeter of the triangle is the sum of the lengths of all three sides, which is given as 22 feet.
So, the perimeter equation is:
x + (4x + 2) + (4x + 2) = 22
This simplifies to:
9x + 4 = 22
Solving for x, we get:
x = 2 feet.
Now we know the third side (base) is 2 feet long. The length of each equal side can now be calculated:
4(2) + 2 = 10 feet.
Therefore, the length of each equal side is 10 feet and the length of the third side is 2 feet.
What is the length of chord CD in the O
Because the distance to both chords are the same (5.70) and both chords are 90 degrees from the 5.70 line, both chords are identical.
Chord AB = 5, so chord CD is also 5.
The answer will be 5.
-4(9 + 6) = plz help me
Greetings, the answer is 11.
Steps:
9+6=15
-4·15
-60
The correct answer is -60
Use a graphing calculator to solve the system of linear equations. 2.1x+4.2y=14.7 −5.7x−1.9y=−11.4
Solving a system of linear equations involves finding the point where the two equations intersect when plotted on a graph. This can be done using a graphing calculator by first entering the equations into the calculator, then finding the point of intersection, which represents the solution.
Explanation:To start solving the given system of linear equations: 2.1x+4.2y=14.7 and −5.7x−1.9y=−11.4, you first need to enter them into your graphing calculator. The intersection point of the two lines represented by these two equations will be your solution. If you don't see a clear intersection point, use the Intersection tool in your graphing calculator, which will provide the respective x and y coordinates of the intersection. This represents the solution to your set of equations.
For instance, if you have a calculator where you can plot both equations on the same graph, find the intersection point, the result is the solution of the system. If the graphing calculator finds an intersection at (x,y), that means x is the solution for the variable x and y is the solution for the variable y. This process is analogous to figuring out where the two lines would cross if you graphed them on a sheet of paper.
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To solve a system of linear equations using a graphing calculator, you first need to rewrite the equations in slope-intercept form: y = mx + b. Then input these equations into the graphing calculator. The intersection of the two graphs is the solution.
Explanation:To solve the given system of linear equations—[tex]2.1x+4.2y=14.7[/tex]and [tex]-5.7x-1.9y=-11.4[/tex]—using a graphing calculator, you first have to rewrite the equations in slope-intercept form (y = mx + b), where 'm' represents the slope and 'b' represents the y-intercept.
To do this, isolate 'y' in both equations. For the first equation, you would do the following:
Subtract 2.1x from both sides. Result: [tex]4.2y = -2.1x + 14.7[/tex]Now, divide every term by 4.2. Result: y = -0.5x + 3.5. This is the form for line 1.
Repeat the same process with the other equation and you will have two equations with 'y' isolated. Input these two equations into your graphing calculator. Where the graphs intersect represents the solution to the system of equations, that is, the values of x and y that satisfy both equations.
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hector is five years less than double mary's age. Mary is 12 years old. how many years old is Hector?
Answer:
Mary's Age = 12
Hector's Age = 2 x 12 - 5
= 24 - 5 = 19 years old
The temperature in Toronto at noon during a winter day measured 4°C. The temperature started dropping 2° every hour. Which inequality can be used to find the number of hours, x, after which the temperature will measure below -3°C?
4-2x≤-3 so basically you are trying to find x so the best inequality for this equation would be less than or equal to hoped this helped have a great day :)
Answer:
4 - 2x < 3
Step-by-step explanation:
Given,
The measured temperature in Toronto = 4°C,
∵ the temperature started dropping 2°C every hour,
So, the decrement in temperature after x hours = 2x degree celsius,
∴ The total temperature after x hours = original temperature - decrement in the temperature,
= 4 - 2x
According to the question,
Total temperature would be below -3°C,
4 - 2x < 3
Which is the required inequality.
according to a recent national health statistic report the weight of male babies less than 2 months old is in the U.S is normally distributed with mean 11.5 pounds and standard deviation 2.7 pounds
a) what proportion of babies weigh less than 15 pounds
b) what proportion of babies weigh between 13 and 15 pounds
c) is it unusual for a baby to weigh more than 17 pounds
The mean [tex]\mu =11.5[/tex] pounds;
the standard deviation is [tex]\sigma =2.7[/tex] pounds.
Let the variable [tex]X[/tex] be the weight of male babies less than 2 months old. It is normally distibuted with a law
[tex]X\sim N(11.5, 2.7^2).[/tex]
Find the variable
[tex]Z=\dfrac{X-\mu}{\sigma},[/tex] that is normally distributed with a law
[tex]Z\sim N(0, 1).[/tex]
Part A.
If X=15 pounds, then
[tex]Z=\dfrac{15-11.5}{2.7}\approx 1.2963[/tex] and
[tex]Pr(X<15)=Pr(Z<1.2963)\approx 0.9032[/tex]
Part B.
If X=15 pounds, then
[tex]Z=\dfrac{15-11.5}{2.7}\approx 1.2963.[/tex]
If X=13 pounds, then
[tex]Z=\dfrac{13-11.5}{2.7}\approx 0.5555[/tex] and
[tex]Pr(13<X<15)=Pr(0.5555<Z<1.2963)\approx 0.9032-0.7123=0.1909[/tex]
Part C.
If X=17 pounds, then
[tex]Z=\dfrac{17-11.5}{2.7}\approx 2.0370[/tex] and
[tex]Pr(X>17)=Pr(Z>2.0370)=1-Pr(Z<2.0370)\approx 1-0.9793=0.0207.[/tex]
This means that approximately 2% of babies are born with weight more than 17 pounds and, therefore, seems to be quite unusual for a baby.
Using standard normal distribution properties, we calculate that about 90.32% of babies weigh less than 15 pounds, around 19.07% of babies weigh between 13 and 15 pounds and just 2.07% of babies weigh more than 17 pounds, which is considered unusual.
Explanation:These questions are solved using the properties of the normal distribution. The standard score (or z-score) is calculated with the formula z = (x-μ)/σ where x is the value, μ is the mean, and σ is the standard deviation.
For babies that weigh less than 15 pounds: Z = (15-11.5)/2.7 = 1.30. You then use a standard normal table (also called a z-table) to find the proportion associated with this z-score, which is about 0.9032. Therefore, about 90.32% of babies weigh less than 15 pounds.
For babies that weigh between 13 and 15 pounds you need to find the z-scores for both weights and identify the difference. Therefore, for 13 pounds, z = (13-11.5)/2.7 = 0.56, and for 15 pounds z=1.30 as calculated before. The odds of a weight between the two is approximately 0.9032 - 0.7125 = 0.1907. So, about 19.07% of babies weigh between 13 and 15 pounds.
For a baby to weigh more than 17 pounds, you again calculate the z-score which results in z = (17-11.5)/2.7 = 2.04. The proportion associated with this z-score is about 0.9793 but since we want to find the proportion of babies weighing more than 17 pounds we do 1 - 0.9793 = 0.0207 meaning only about 2.07% of babies weigh over 17 pounds. This is well below 5%, so it is considered unusual.
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Estimate the value of 102.3 divided by 4.7
The estimated value can be given by 21.76
To solve this expression, let's just:
divide both terms between themselves, and then approximate the result.:[tex]\\\large \sf 102.3 \div 4.7 = 21.7659574468\\[/tex]
We can make the approximation to the first two numbers after the point, thus having the result
[tex]\red{\boxed{\large \sf \approx 21.76}}[/tex]
So, the answer will be 21.76
Answer:
20
Step-by-step explanation:
Four 5th graders are taking turns visiting a 2nd grade classroom to read aloud from a chapter book . The book has 38 pages. If they each read the same number of pages , how many pages will each one read?
Answer:
9.5
Step-by-step explanation:
Which value for x makes the open sentence true? 8 + 3 • x = 2 squared + x squared Question 1 options: 5 4 3 2
8 + 3 *X = 2^2 + X^2
Simplify:
8 + 3x = 4 +x^2
Subtract x^2 from each side:
8 + 3x - x^2 = 4
subtract 4 from each side:
8 + 3x -x^2 -4 = 0
Simplify:
3x - x^2 +4 = 0
Factor
-(x-4)(x+1) =0
X = 4, -1
The answer would be 4.
Hi Slyther,
Answer - B. 4
8 + 3 * x = 2^2 + x^2
8 + 3 x 4 = 2^2 + 4^2
8 + 12 = 4 + 16
20 = 20
choose the value of x that makes the open sentence true 40-x^2 < 2x+15.
A:2
B:3
C:4
D:5
I believe the answer is B, but I'm not 100% sure. :)
the answer is 5.
hope it helps
Jason plotted the point (4, 4) and (-4, -4) on a coordinate plane. He says that the distance between the two points is 8 because |4| + |-4| = 8. What mistake is Jason making?
Jason is making a mistake in calculating the distance between the two points on a coordinate plane. The correct formula to find the distance between two points is the distance formula, which uses the Pythagorean theorem.
Explanation:Jason is making a mistake in calculating the distance between the two points. The formula to find the distance between two points in a coordinate plane is the distance formula, which uses the Pythagorean theorem. The correct formula is:
Distance = sqrt((x2-x1)^2 + (y2-y1)^2)
Using the formula with the points (4, 4) and (-4, -4), the distance should be:
Distance = sqrt((-4-4)^2 + (-4-4)^2) = sqrt((-8)^2 + (-8)^2) = sqrt(64 + 64) = sqrt(128) = 8*sqrt(2)
So the distance between the two points is 8 times the square root of 2, not just 8. Jason made a mistake by adding the absolute values of the coordinates instead of using the distance formula correctly.
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On a farm, the farmer decides to give pizza to her 18 ducks as a special treat. She orders 3 pizzas, and the total price is $26.28. What is the unit price of each pizza? (4 points) $4.38 $8.76 $23.28 $78.84
It is simple. There are 3 pizzas and 26.28 total. We are suppose to find for each pizza.
26.28/3=8.76
B. $8.76 per pizza
Answer
B. $8.76
I got it right and also if you multiply 8.76 by 3 you get 26.28 and the same goes for 26.28 divided by 3 which equals 8.76.
how much is 20 plus 10
20 plus 10 equals 30.
PLEASE HELP!!! This is a trigonometry question. A conveyor is used to lift to a shredder. The most efficient operating angle of elevation for the conveyor is 36.2 degrees. The paper is to be elevated 17.0 m. What length of conveyor is needed?
You can use the sin function to solve this.
Think of a triangle with the conveyor being the longest side (hypotenuse). The height (the vertical side) is H=17m. The angle of elevation is a=36.2. We are looking for length of the hypotenuse, L.
The sin is the ratio of height to hypotenuse: sin(36.2) = H/L = 17/L
Now solve for L:
L = 17/sin(36.2) = 17m/0.59 = 28.78m
The conveyor needs to be approx. 28.8m long to get close to the max. efficient angle.
Carly is 3 times her brother's age. The sum of their ages is no more than 24 years.
*(Variables)*=
The Brothers Age = x
*(Step-By-Step Instructions)*=
[tex]x[/tex]·[tex]3[/tex]≤[tex]24[/tex] Write an inequality
[tex]x[/tex]≤[tex]8[/tex] Divide 3 to 24
*(Answer)*= [tex]x[/tex]≤[tex]8[/tex]
Hope this helps
Person who answered: BangtanBoyScouts
What value of q makes the equation true 25/q = 5/8
A 30
B 35
C 40
D 45
We can figure this out by applying proportionality.
25/5 = 5.
We know the multiplier is 5 between the fraction on the right and the fraction on the left, so we need only to multiply 8 by 5.
8 * 5 = 40.
Your answer is C.
Explain how you could use the construction tool or a compass and straightedge to create a line segment that is twice as long as given segment
To create a line segment that is twice as long as a given segment, use a compass and straightedge to draw two intersecting arcs and connect the intersection point with one endpoint of the given segment.
Explanation:To create a line segment that is twice as long as a given segment using a construction tool or a compass and straightedge, follow these steps:
Draw the given segment using a ruler and label its endpoints.Place the compass on one endpoint of the given segment and adjust the compass width to the length of the given segment.Draw an arc from the other endpoint of the given segment using the compass.Without changing the compass width, move the compass to the intersection point of the arc and the given segment. Draw another arc that intersects the first arc.Connect the intersection point of the arcs with one endpoint of the given segment to create a line segment that is twice as long as the given segment.Learn more about Construction of line segments here:https://brainly.com/question/31666029
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(x-2) (x+9)= 4x solve and check solution
Answer:
x = -6 and x=3
Step-by-step explanation:
We have been given the equation to solve
[tex](x-2)(x+9)=4x[/tex]
Let us simplify the left hand side of the equation using FOIL (first outer in last).
[tex]x^2+9x-2x-18=4x\\\\x^2+7x-18=4x\\\\x^2+3x-18=0[/tex]
Now, let us find the factors using AC method.
Middle term 3x can be written as 6x - 3x
[tex]x^2+3x-18=0\\\\x^2+6x-3x-18=0\\\\x(x+6)-3(x+6)=0\\\\(x+6)(x-3)=0\\\\x=-6,3[/tex]
Now, let us check the solution by plugging values in the original equation
For x= -6
[tex](-6-2)(-6+9)=4(-6)\\\\(-8)(3)=-24\\\\-24=-24\Rightarrow\text{ True}[/tex]
Thus, x=-6 is a solution.
For x= 3
[tex](3-2)(3+9)=4(3)\\\\(1)(12)=12\\\\12=12\Rightarrow\text{ True}[/tex]
Thus, x=3 is a solution.
Therefore, the solutions are x = -6 and x=3
Which equation is graphed here?
A.) 3y - x = 10
B.) x + 3y = 10
C.) 3x - y = 10
D.) 3x + y = 10
E.) -3x - y = 10
A) 3y - x = 10 is the correct answer! (I just graphed it on Desmos.com)
Step-by-step explanation: usatestprep approved
Kenneth shared a basket of apples with three of his friends. The basket weighed 14.75 pounds. What is the weight of the apples that each of the friends received?
Answer:
Assuming each person gets the same amount of apples, each friend gets 3.6875lbs of apples.
Step-by-step explanation:
Now in order to find this, we need to note that 4 people get apples (Kenneth and 3 friends). So we take the total number of pounds and divide it by 4.
14.75lbs/ 4 people = 3.6875lbs per person
Hey there!!
The total number of people are '4 people
The weight is shared equally among all the 4 people.
The total weight is 14.75 pounds.
What is the weight of each person?
∴We know everyone has the equal weight.
... person + person + person + person = 14.75
... 4 × person = 14.75
... person = 14.75 / 4
... person = 3.68
Hence, the weight of apples each get is 3.68 pounds.
Hope my answer helps!!
the rule for subtracting integers can be used to subtract whole numbers. explain why.
The difference between whole numbers and integers is that whole numbers do not include negative numbers, whereas integers do. Therefore, the same rule used by integers can be used with whole numbers, so long as negative numbers are not used.
The rule for subtracting integers applies to whole numbers because whole numbers are integers. In subtraction, we change the sign of the subtracted number and then add, a principle that works with both negative and whole numbers.
The rule for subtracting integers can indeed be used to subtract whole numbers because whole numbers are a subset of integers. Integers include all positive whole numbers, zero, and their negative counterparts. When we look at the subtraction of integers, for example, 5 - 3 = 2, we can also see this as adding the opposite, 5 + (-3) = 2. Similarly, if you subtract a negative number, like subtracting -6 from 2, it becomes 2 - (-6) = 2 + 6 = 8. Hence, even with whole numbers, we are using the same principles.
When subtracting whole numbers, you follow the same process: change the sign of the number being subtracted and proceed with addition. If the numbers have different signs, you subtract the smaller number from the larger and retain the sign of the larger number. The basic principle to use in working with addition and subtraction of integers is changing subtraction into addition and the paying attention to the signs.
The universality of mathematical rules applies regardless of where or when, meaning subtraction of whole or negative numbers follow the same fundamental principles.
A band has 36 members . they are arrange into 6 equal rows . How many band members are in each row?
Answer:
6
Step-by-step explanation:
divide 36 by 6
Hello
This type of question can be formed into a division problem
36/6
= 6
6 band members are in each row
:)
List the first 10 prime numbers
the 1st 10 prime numbers are ..wait let me look at my notes from 8th grade..oh found them here they are
2,3,5,7,11,13,17,19,23 and 29
hoped this helped:)
11=8x+5-5x
Need some help asap!
X=2: 16+5-10=11 21-10=11=11=11
Combine Like Terms: 11 = 8x + 5 - 5x
First combine the ones with variables:
11 = 3x +5
Then combine ("move") 5 to 11.
6=3x
Divide.
Final Answer
2=x
Hope that helps :)
-edited-
what is the proper way to solve this problem 879000- 21989=
The answer is 857011
Answer : The correct answer is, 857011
Step-by-step explanation :
We are given an expression :
A value that is [tex](879000-21989)[/tex]
The mathematical operation used in the expression is subtraction.
Calculating the value of given expression, we get:
[tex](879000-21989)=857011[/tex]
Hence, the value of the expression is 857011.
What is 59% of 14 m?
Answer:
8.26 that's what i think it is
Un arquitecto esta preparando una oferta para construir un edificio de condominios. Los cimientos y el estacionamiento costaran $25 millones. El primer piso costara $12 millones y cada piso sucesivamente al segundo $500, 000 mas que el piso procediente ¿Cuanto costara el noveno piso?
Respuesta: El noveno piso costara $16 millones
Solucion:
El primer piso costara $12 millones y cada piso sucesivamente al segundo $500,000 mas que el piso precedente.
Esta es una progresion aritmetica, porque cada valor se obtiene sumandole al valor anterior un valor constante que es la razon "r". En este caso la razon es:
r=$500,000
Que en millones de dolares es:
r=$0.5 millones
Tenemos el primer valor: El primer piso costara $12 millones:
a1=$12 millones
Y necesitamos el costo del noveno piso, o sea el noveno valor: a9=?
Tenemos esta formula para calcular el valor de un termino cualquiera "an" de una progresion aritmetica, conociento el primer termino de la misma:
an=a1+(n-1)r
En este caso n=9, entonces sustituyendo en la formula anterior:
a9=a1+(9-1)r
a9=a1+8r
Reemplazando los valores dados en la formula de arriba:
a9=$12 millones+8($0.5 millones)
a9=$12 millones+$4 millones
a9=$16 millones
Convert 3 over 8 to a decimal and tell whether it terminates or repeats.
A- 3.8, a number that terminates
B- 3.8 with a repeating bar over 8., a number that repeats
C- 0.375, a number that terminates
D- 0.375 with a repeating bar over 375., a number that repeats
the answer is c) 0.375, a number that terminates.
Answer:
D- 0.375 with a repeating bar over 375., a number that repeats
Step-by-step explanation:
Convert 3 over 8 to a decimal and tell whether it terminates or repeats.
A- 3.8, a number that terminates
B- 3.8 with a repeating bar over 8., a number that repeats
C- 0.375, a number that terminates
D- 0.375 with a repeating bar over 375., a number that repeats
Which is an equation of the line with a slope of 1/4 and a y-intercept of -2
The equation of a line formula is y=mx+b.
y = 1/4x - 2
m= 1/4
b= -2
Answer"
y=4x+-2
Step-by-step explanation: