Answers
Answer: The perimeter of the triangle is 69 cm.
Step-by-step explanation:
Let us consider the side of the triangle be 3x ,4x and 5x.
According to the question,
The longest side of the triangle be 30 cm.
. 5x=30cm
x=6 cm
So the side of the triangle are 18cm ,24 cm and 30 cm.
The perimeter of the triangle is the sum of sides of the triangle.
so perimeter is =15+24+30=69 cm
Related Questions
What is the solution for the equation 2/5 x - 4 = 26 ?
Answers
The given expression is,
[tex]\frac{2}{5}x-4=26[/tex]Multiplying all the terms with 5, we get
[tex]\begin{gathered} 5\times\frac{2}{5}x-(5\times4)=(26\times5) \\ 2x-20=130 \\ 2x=130+20 \\ 2x=150 \\ x=\frac{150}{2}=75 \end{gathered}[/tex]Thus, the solution is, x = 75.
The diagram shows a quadrilateral ABCD with each of its sides extended.
AB = AD
Show that ABCD is a kite. Give a reason for each stage of your working
(The diagram is attached)
Thanks, by neve124
Answers
It is to be noted that by the proof given below, the attached shape ABCD is a kite.
What is a kite in Euclidean Geometry?A kite is a quadrilateral having reflection symmetry across a diagonal in Euclidean geometry. A kite has two equivalent angles and two pairs of adjacent equal-length sides as a result of its symmetry.
The proof is as follows:
AB = AD [Given]
∠ADC = 115° [Angles on a Straight line]
That is 180 - 65 = 115°
∠BCD = 20° [Vertical Angles are equal]
∠ABC = (360 - (20+115+110))
= 115° [Angles in a quadrilateral]
Hence,
ABCD = Kite [Definition of a Geometric Kit]
That is
It two equivalent angles (∠ABC and ∠ADC)It also has two pairs of adjacent equal-length sides (that is |AD| ≈ |AB|.QED
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right answer gets brainlist pls help asap
Answers
Explanation:
There are many ways. Easiest one is that u can literally count how many units between -7 and -1. Your answer is gonna be six units
Another way is by using taking the absolute value of their difference so you can say
|-1-(-7)| or |-7-(-1)| which simplifies to |6| and |-6| and this both are going to equal 6.
Answer:
6 units
Step-by-step explanation:
count the units between the two points
1. -V64Name the set or sets or numbers to which each real number belongs?
Answers
1) an integer and a rational number
Explanation:
1) -√64 = -4
This is an integer.
Integers include natural numbers, the opposites of this numbers and zero.
-4 is a negative number and the opposite of the natural number 4
Hence -4 is an integer.
-4 can be written as a fraction:
-4 = -4/1
Hence, it is also a rational number
Help please i need it for a grade
Answers
Answer:
(3,13 ) & (-1,5)
Step-by-step explanation:
a. 2x + 7 = x^2 + 4
b. move all terms to the left side and set equal to zero. then set each factor equal to zero. which gives you the x values 3, -1
c. substitute x with the x values to get y. 2(3) + 7 = -1^2 + 4
d. the solution is (3,13 ) & (-1,5)
Use the Product Property for Exponents: thoroughly explain why x · x = x^2.
Answers
1) We need to consider that whenever we have a variable its exponent is raised to the 1st power, even when we don't write it as a superscript.
2) So we can write out the following steps to get that product as x²:
[tex]\begin{gathered} x=x^1 \\ x^1\cdot x^1=x^{1+1}=x^2 \end{gathered}[/tex]That's why we can write that, applying the property of exponents.
1.5 x 10 9
8.9 x 10 7
Answers
8.9x10.7=95.23
Part AType an equation to represent the cost of the topsoil.Part BHow does the cost of the topsoil compare to the cost of the mulch?
Answers
Step 1
Write the equation of a line in slope point form
[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]Where;
[tex]\begin{gathered} y_2=\text{ 60} \\ x_2=2 \\ y_1=\text{ 30} \\ x_1=\text{ 1} \end{gathered}[/tex]Step 2
Find the equation to represent the cost of the topsoil.
[tex]y-30=\frac{60-30}{2-1}(x-1)[/tex][tex]\begin{gathered} y-30\text{ = }\frac{30}{1}(x-1) \\ y-30=30x-30 \\ y=30x-30+30 \\ y=30x \end{gathered}[/tex]The equation that represents the cost of the topsoil is
y=30x
Step 3
Find how the cost of the topsoil compares to the cost of the mulch.
[tex]\begin{gathered} \text{The equation for the cost of the mulch y, in dollars is} \\ y=25x \\ \text{for x cubic yards of mulch} \\ \text{The equation for the cost of topsoil, y in dollars is} \\ y=30x \\ for\text{ x cubic yards of topsoil} \end{gathered}[/tex][tex]undefined[/tex]
HElP ME Please!!!!!!!! I need help
Answers
Answer:
b x 8 = 40 and 40 / 8 =b
Step-by-step explanation:
well, 8 charms makes one bracelet, so add up 8 until you run out of charms:
8 8 + 8 = 16 16 + 8 = 24 24 + 8 = 32 32 + 8 = 40We only have 40 charms, so we can make 5 bracelets!
Now, plug this number (5) back into the equations:
b x 8 = 40
(5) x 8 = 40
40 = 40
this checks out!
40 - 8 = b
40 - 8 = (5)
32 = 5
32 does not equal 5, so this equation doesn't work.
40 / 8 = b
40 / 8 = (5)
5 = 5
This equation works :)
b + 8 = 40
(5) + 8 = 40
13 = 40
13 does not equal 40, so this is also a bad equation..
since b x 8 = 40 and 40 / 8 = b both produced the right results, we know those two are our answers!
If QP bisects ZDQL, m/DQP = 5x - 7, and m/PQL = 11 + 2x, determine
the measure of ZDQL.
m₂DQL =
Answers
When QP bisects DQL, then the angles DQP and angle PQL is 23°.
Given that,
In the picture we can see the diagram,
The QL line is there and the QD line.
QP line bisect the angles DQL
The angle DQP is 5x-7
The angle PQL is 11+2x
We have to find the x value and the angles DQP and PQL.
We know,
From the bisection we can say the angle are equal to each other
The angle DQP=The angle PQL
5x-7=11+2x
5x-2x=11+7
3x=18
x=18/3
x=6
Substitute x value in angles DQP and angle PQL.
The angle DQP=5x-7=5(6)-7=30-7=23°
The angle PQL=11+2x=11+2(6)=11+12=23°.
Therefore, the angles DQP and angle PQL is 23°.
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1. In the graph below, point D is reflected across the y-axis. What are the coordinates of its
image?
2
(3,-1)
(3, 1)
(-3,-1)
(-3, 1)
Answers
Answer:
3
Step-by-step explanation:
The National Research Council recommends keeping a 1 : 3 copper to zinc ratio in a horse’s diet. If the horse is getting 420 milligrams (mg) of zinc per day, how many milligrams of copper does the Council recommend the horse have?
Answers
If he National Research Council recommends keeping a 1 : 3 copper to zinc ratio in a horse’s diet. If the horse is getting 420 milligrams (mg) of zinc per day, The number of milligrams of copper that the Council recommend the horse have is : 140 milligrams.
How to find the milligrams of copper?Given data:
Copper to zinc ratio = 1 : 3
Zinc per day = 420 milligrams
Hence,
1 /3 = x / 420
x /420 = 1 / 3
Where x is the number of milligrams of copper
so,
x = 1 /3 × 430
x = 140 milligrams of copper
Therefore the milligrams of copper is 140 milligrams.
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If Rie’s legs are 99cm long, and Rie is 165cm tall. What percentage of Rie’s body is legs?
Answers
The percentage of Rie's body that is Rie's legs is: 60%.
What is Percentage?A percentage can be defined as an amount in each hundred or, simply put, a proportion of a quantity in relation of a whole.
How to Find the Percentage of a Quantity in a Whole?To find the percentage of a quantity in a whole, divide the quantity by the whole quantity, then multiply the quotient by 100.
The "whole" in this problem is Rie's height, which is: 165 cm
The "quantity" in the context of this question is the length of Rie's leg, which is: 99 cm.
Therefore, to find the percentage of Rie's legs in Rie's body, we have the following:
99/165 × 100
= 0.6 × 100
= 60%.
Therefore, Rie's leg is 60% of Rie's body.
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if one shirt costs £13,how many can I buy with £419?
Answers
Answer:
32 shirts
Step-by-step explanation:
419÷13
=32.230
Answer:
32
Step-by-step explanation:
419 divided by 13
= 32.230
15. Name the indicated parts of this diagram.AC __________________AE __________________DE __________________AB __________________ADE __________________________ACE = _______°CAB = _______°
Answers
SOLUTION:
We want to name the indicated parts on the diagram, their names are;
For the angles, we have;
[tex]\begin{gathered} \measuredangle ADE=22^o\text{ }(Inscribed\text{ }Angle) \\ \measuredangle ACE=44^o\text{ }(Central\text{ }Angle) \\ \measuredangle CAB=90^o\text{ }(Angle\text{ }between\text{ }radius\text{ }and\text{ }tangent) \end{gathered}[/tex]A wise man once said, "300 reduced by 3 times my age is 84." What is his age?
Answers
Answer:
his age would be 72.
300-84=216
216÷3 is 72
The graph below represents the number of miles, y, that Jacob can drive his car for
every gallons of gas. Find the rate of change.
Answers
The average rate of change of the given graph is 31.3
How to determine the average rate of changeThe graph of the function is represented as the given parameter
From the graph, we have the following points
(x, y) = (10, 313) and (20, 626)
The average rate of change is the slope of the function and the average rate of change is calculated as
Average rate = [f(b) - f(a)]/[b - a]
Where
(a, f(a)) = (10, 313) and (b, f(b)) = (20, 626)
Substitute the known values in the above equation
So, we have
Average rate = [626 - 313]/[20 - 10]
Evaluate
Average rate = 31.3
Hence, the average rate is 31.3
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The net of a rectangular prism is shown below. The surface area of each face is labeled.
Answers
We will have the following:
Inferring from the information presented in the diagram we can conclude that the measurements will be:
Base: 3ft * 12ft = 36f t^2
Side1: 3ft * 2ft = 6 ft^2
Side 2: 12ft * 2ft = 24 ft^2
So, the values that would represent the dimension will be:
Length: 12 ft.
Width: 3 ft.
Height: 2 ft.
Simplify: 15.4 + 3.02
Answers
Answer:
18.42
Explanation:
15+3=18
0.4+0.02=0.42
18+0.42=18.42
5 : it is night. someone who is 4 feet tall is walking away from a street light at a rate of 8 feet per second. the street light is 12 feet tall. the person casts a shadow on the ground in front of them. how fast is the length of the shadow growing when the person is 3 feet from the street light? the length of the shadow is growing at a rate of
Answers
When a person is 3 feet from a street light, the length of the shadow grows at a rate of 4 feet per second.
See the figure that illustrates the in question statement, attached.
making use of the related triangle theorem;
4/y = 12/x+y
Cross multiply
4(x+y)=12y
4x+4y = 12y
4x=8y
x/y =2
x=2y
Divide the two sides of the equation by t, where dx/dt = 2 dy/dt. The speed at which the person is walking away from the street light is expressed as dx/dt
The growth rate of the shadow's length is measured by the ratio dy/dt.
Given that dx/dt = 8ft/s
by solving,
dy/dt = 4 ft/s
Hence the rate at which the length of the shadow growing when the person is 3 feet from the street light is 4ft/s
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A train goes at a constant speed. If it covers 150 miles in 2 1/2 hours What distance would it cover in 2 hours?
Answers
Answer:
120
2 1/2 hours is 150 minutes and your covers 150 miles in 150 minutes, so remove 30 minutes because 1/2 an hour is 30 minutes and remove 30 miles because you're going of time because 1 minute = 1 mile
which of the following best describes XWO A. Angle bisectorB. MedianC. AltitudeD. Perpendicular bisector15W15Z
Answers
INFORMATION:
We have the next triangle
And we must select the answer that best describes XW segment
STEP BY STEP EXPLANATION:
We can see that XW segment divides the YZ side into two equal parts, which measure 15 units. And we can also see that the XW segment starts in one of the vertex of the triangles and goes to the opposite side.
Then, we can analyze the definition for the median of a triangle
Finally, if we compare, we can see that the definition of median describes the XW segment.
ANSWER:
B. Median.
3. x^3= 25
4.x² = 125
Answers
Step-by-step explanation:
Hope this helps..............
brainliest please
What two numbers multiplied give you 100 and added give you 21?
Answers
Answer: [tex]\frac{21}{2}+\frac{\sqrt{41}}{2}, \frac{21}{2}-\frac{\sqrt{41}}{2}[/tex]
Step-by-step explanation:
Let the two numbers be x and y.
[tex]x+y=21 \implies y=21-x\\\\xy=100\\\\\therefore x(21-x)=100\\\\21x-x^2 =100\\\\x^2 -21x+100=0\\\\x=\frac{21 \pm \sqrt{21^2 -400}}{2}=\frac{21}{2} \pm \frac{\sqrt{41}}{2}[/tex]
Solve for x. Show your work.
Answers
Answer:
x = 35°
Step-by-step explanation:
Hello!
The sum of the two angles is 90°, so if we set the sum of the two angles to 90, we can solve for x.
Solve for x90 = 32 + 2x - 1270 = 2x35 = xThe value of x is 35°.
HELP PLEASE FASTTTTTTTT
Answers
I put it into a distance calculator.
Hope this will help.
Answer: I think it’s C
Round 34,582 to the nearest thousand.
Answers
Answer:
35000
Step-by-step explanation:
So the number is 34582
now look at the hundreds
if it is 5 or over then we add a thousand to and subtract what ever the lower than thosand
and in this case it is 5 so we round UP
and now we have 35000
The answer is 35,000.
To round to the nearest thousand, we look at the last three digits. If these digits are 500 or greater, then we round the thousands digit up, and if they are less than 500, then we round down, keeping the thousand's digit the same.
Since in this case the last three digit consists of 582 which is greater than 500 so we round the thousands digit up i.e. from 4 to 5 in this case.
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Solve for y 2(4y+7)=62
Answers
8y + 14 = 62
8y = 62 - 14
8y = 48
y = 48/8
y = 6
Answer:
2 (4y+7) = 62. y=6
Step-by-step explanation:
2 (4y+7) Distribute the 2
8y+14=62. use subtraction to cancel out
-14 -14
8y=48. Use division to cancel out
/8. /8
y=6
G(x)=|x-2|
How do u solve this?
Answers
make k the subject
2A= πK^2 +3t
Answers
Answer:
k = ± [tex]\sqrt{\frac{2A-3t\p}{\pi } }[/tex]
Step-by-step explanation:
2A = πk² + 3t ( subtract 3t from both sides )
2A - 3t = πk² ( isolate k² by dividing both sides by π )
[tex]\frac{2A-3t}{\pi }[/tex] = k² ( take square root of both sides )
± [tex]\sqrt{\frac{2A-3t}{\pi } }[/tex] = k
