A fireman has 12 ft. ladder and a 16 ft ladder. He leans the 12 ft ladder against a house at an angle of 57 degrees. He leans the 16 ft ladder against a house 30-degree angle. Which ladder will he climb to the higher height? Explain the answer please
Answer:102
Step-by-step explanation:
If the area of a triangle is 2x2−2x−4
and it has a height of x−2
write the length of the triangle.
Answer:
Step-by-step explanation:
area = ½(base)(height) = 2x²-2x-4
½(base)(x-2) = 2x²-2x-4
½(base) = (2x²-2x-4) ÷ (x-2) = 2x+2
base = 4x+4
During a school fundraiser contest, Georgia sold 49 coupon books and Molly sold 79 coupon books. The total number of coupon books sold during the contest was 354 books. What's the ratio of the number of coupon books that Georgia and Molly sold to the total books sold? Question 19 options: A) 128∕177 B) 79∕354 C) 49∕354 D) 64∕177
I would say it’s A
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Plz, help me I will give you a brainlist and Extra points. If you help me.
Select the expression that matches “subtract 3 from 4/9 of 20.”
A. 20−(4/9×3)
B. (4/9×20)−3
C. 4/9×(20−3)
D. 3−(4/9×20)
Answer:
B) (4/9 x 20)-3
what is (9+8/7+6+89+65698-7875+77-88)*999999 you will give you 100 and brainlist if it is also incorrect
The answer is 57917084940
Step-by-step explanation:
1) Simplify 9 + 8/7 + 6 + 89 + 65698 - 7875 + 77 - 88 to 405420/7.
[tex] \frac{405420}{7} \times 999999[/tex]
2) Use this rule: a/b × c = ac/b.
[tex] \frac{405420 \times 999999}{7} [/tex]
3) Simplify 405420 × 999999 to 405419594580.
[tex] \frac{405419594580}{7} [/tex]
4) Simplify.
[tex]57917084940[/tex]
Therefor, the answer is 57917084940.
fine
3. a) The area of a rectangle is 15 cm. If its length is 5
breadth Hint angin breadth - Area of rectangle
Answer:
Breadth = 3 cm
Step-by-step explanation:
Given:
Area of rectangle = 15 cm²
Breadth = a
Length = 5 cm
Find:
Breadth
Computation:
Area of rectangle = l x b
15 = 5 x a
Breadth = 3 cm
Amber bought 3 kg of walnuts for $6.75 per kg and 4 kg of almonds for $8.69 per kg. She gave the cashier a $100 bill. What should Amber get back in change?
Which expression is equal to 0?
A) 2 + 0 + 3
B) 2x0x3
C) 1 + (0 x 2)
D) (1 x 2) + 0
Answer:
c
Step-by-step explanation:
Can somebody please help me
Answer:
Step-by-step explanation:
Explain how to do (2^-2/3^3)^4 i need to know how to do this.
Answer:
((2^(-2))÷(3^3))^4=
Step-by-step explanation: expand
When ringing up a customer, a cashier needs 7 seconds to process payment as well as 1.5 seconds to scan each item being purchased. If it takes 28 second s to ring up a customer ,how many items are being purchased?
Answer:
14 items
Step-by-step explanation:
What we know:
- it takes 7 seconds to process the payment
- for every item, it takes 1.5 seconds to scan
- in total, it took 28 seconds to ring up the customer
With these pieces of information, we can construct the following equation:
[tex]28=1.5x+7[/tex] when [tex]x[/tex] is equal to the number of items there is
Subtract both sides by 7
[tex]28-7=1.5x+7-7\\21=1.5x[/tex]
Divide both sides by 1.5
[tex]\frac{21}{1.5} =\frac{1.5x}{1.5} \\14=x[/tex]
Therefore, 14 items were being purchased.
I hope this helps!
28 is 50% of what number?
Answer:
its 56
Step-by-step explanation
50% × x = 28 or, 50 100
× x = 28
Multiplying both sides by 100 and dividing both sides by 50,
we have x = 28 ×
100
50
x = 56
If you are using a calculator, simply enter 28×100÷50, which will give you the answer.
Write the Fractions in Simplest Form
21/56
Answer:
21/56 in simplest form is 3/8
Step-by-step explanation:
Given the statement ΔQRS ≅ ΔXYZ, list all congruent parts you can conclude about the two triangles. Explain.
Answer:
Side QR is congruent to Side XY.
Side RS is congruent to Side YZ.
Side SQ is congruent to Side ZX.
Angle Q is congruent to Angle X.
Angle R is congruent to Angle Y.
Angle S is congruent to Angle Z.
Step-by-step explanation:
Side QR is congruent to Side XY because triangle QRS is congruent to triangle XYZ and each point of a triangle is in corresponding order with a point of the other triangle. For example, Q matches up with X since they both are listed first in their respective sequence.
What is the area of the circle in terms of pi?
Answer:
100π
Step-by-step explanation:
The formula for area of a circle is:
π[tex]r^{2}[/tex]
The radius is 10 feet.
[tex]10^{2}[/tex] is 100
This makes the expression representing the area of the circle:
100π
3)
Ten students from a class participated in a math quiz. The scores obtained by
them were recorded as follows.
11, 6, 7, 13, 1, 13, 16, 7, 13, 16
Mean :
Median :
Mode :
Range :
Answer:
Mean: 10.3
Median: 12
Mode: 13
Range: 15
Step-by-step explanation:
First, let's define what all these terms mean.
Mean is the average of all the numbers in a set of data. Median is the number in the middle of a range whenever the numbers are put in ascending order. If there are two numbers in the middle instead of one, then take the average of those two numbers. Mode is the number that occurs the most in the set of data. Range is the difference between the largest and the smallest number in a set of data.
To make things a little easier overall, let's just go ahead and put all our numbers in ascending order, which will be as follows: 1, 6, 7, 7, 11, 13, 13, 13, 16, 16.
To find the mean, just add up all the numbers and divide by how many there are. So we'll add 1 + 6 + 7 + 7... and so on to get a total of 103. Next, we'll divide that number by 10 since there are 10 students. This gives us a mean of 10.3.
Next, we'll find the median. To find this, just figure out which number(s) is in the center of your data. Since we have an even number of terms (10), we'll have two numbers in the middle, being 11 and 13. To find our median from here, just add 11 and 13 and then divide by 2. 11 + 13 = 24 and then 24 / 2 = 12. This means that our median is 12.
Next, we'll find the mode. The mode is the number that is seen the most in a set of numbers. In our set, we see that there are three 13s. Since 13 is the most frequently used number in our set, this makes it the mode.
Finally, we'll find the range. The range is just the largest number in the set minus the smallest number in the set. In our set, 16 is our largest number and 1 is our smallest. Just do 16 - 1 = 15 and we'll see that 15 is the range of the set. Hope this helps!
The sum of two numbers is 55. The smaller number is 23 less than the larger number. What are the numbers?
Answer:
The numbers are 39 and 16
Step-by-step explanation:
let the two numbers be x and y
according to question
x+y=55......equation i
x-y=23.......equation ii
add both equations and you will get x=39 and y=16
- 2x – 117 = = 10x + 59
Answer:
[tex]\huge\boxed{x=-\dfrac{44}{3}=-14\dfrac{2}{3}}[/tex]
Step-by-step explanation:
[tex]-2x-117=10x+59\qquad|\text{add 177 to both sides and subtract}\ 10x\ \text{from both sides}\\\\-2x-10x-117+117=10x-10x+59+117\\\\-12x=176\qquad|\text{divide both sides by (-12)}\\\\\dfrac{-12x}{-12}=\dfrac{176}{-12}\\\\x=-\dfrac{176:4}{12:4}\\\\x=-\dfrac{44}{3}[/tex]
Plz answer this question I
Answer:
In t years after 2019 there are going to be 39,523,462*(1.172)^t people.
Step-by-step explanation:
For a) We have a starting amount of 39,523,462 people in 2019, if each year it grows at a rate if 1.72% then 1 year after 2019 would have 39,523,462*1.172 people. In 2 years we would have 39,523,462*1.172*1.172 or 39,523,462*1.172^2 people etc. We could conclude that after t years there would be 39,523,462*1.172^t people. In part b) just calculate this when t=11 and round this to the nearest whole number, I think you can do it yourself.
What is the perimeter of each figure?
2x
2x
X-8
x + 2
1
Answer:
triangle: 5x-8
square: 4x+8
Step-by-step explanation:
triangle: 2x + 2x + x -8
combine like terms
= 5x-8
square: x + 2 + x + 2 + x + 2 + x +2
combine like terms
= 4x + 8
Please some one help! 5th grade math! i don't understand i am a 4th grader
Well, for one thing, your teacher must see a lot of potential in you if she moved you up a level!
Answer:
Linda has 3/8 yards of fabric left.
Step-by-step explanation:
Ok, so forget 1 "yard." That'll just confuse you. Just say, Linda has 1. She used 5/8 of it. How much does she have left? So, Linda breaks her 1 into 8 pieces, and she throws away 5 of them. How many does she have left? Basically, just subtract 5 from 8. What does that give you? 3! Linda has 3/8 yards of fabric left.
I hope this helps, and I'm sure you'll get it soon
Find ML.
3x + 11
45
10x - 12
Please help me! I will mark brain list if you help :) thank you!
Answer:
58
Step-by-step explanation:
45=((3x+11)+(10x-12))÷2
90=13x-1
13x=91
x=7
ML=10(7)-12
=58
Using midline interval, the value of ML is 58.
What is midline interval?
The distance from the "midline of the interval to either end line is called midline interval".
According to the question,
The line JK is 3x+11, the line ML is 10x - 12. In order to find the value of ML.
The formula to calculate value of ML is midline value = [tex]\frac{(x1 + x2)}{2}[/tex].
Let x₁ = 3x + 11 and x₂ = 10x - 12
45 = [tex]\frac{(3x + 11) + (10x - 12 )}{2}[/tex]
90 = 3x + 11 + 10x -12
= 13x -1
13x = 91
x = 7
Substitute x = 7, in equation x₂ we get 10(7) - 12 = 70 - 12 = 58.
Hence, using midline interval the value of ML is 58.
Learn more about midline interval here
https://brainly.com/question/12992302
#SPJ2
question is the picture pls help if you can!!
Answer:
median = 2
mode = 0
Range = 10
Step-by-step explanation:
mark branliest
and if you need help just ask
What is the area of composite shape
Answer:
30
Step-by-step explanation:
Answer:
you must divide the shape into rectangles, triangles or other shapes you can find the area of and then add the areas back together.
Step-by-step explanation:
That is your step by step and yur answer
5x÷5 show the steps pls 5xdivided by 5
Answer:
x
Step-by-step explanation:
In this equation (5x/5), x will end up being by itself because 5/5 = 1. The 5's cancel out and it leaves x by itself.
5x/ 5 =0
x=5/5
X=1
Hence the answer is X=1...
plz help me someone.
Answer:
80
That's the answer
Step-by-step explanation:
No explanation
Answer: 80 meters
Step-by-step explanation:
There are two ways you could do this.
1st way (my personal way of doing it): Add 25 + 15 + 25 + 15. Then subtract that by 9 + 7 + 9 + 7 (you do this because that will find the perimeter of the open space.)
=> 25 + 15 + 25 + 15 = 80
=> 9 + 7 + 9 + 7 = 32
=> 80 - 32 = 48
2nd way: Add 25, 15, 16 and 8. (You are adding the sides that they already give you.) Then, you would find the missing sides (or the sides that don’t have a number on the .) And that would be 7 and 9. So you add the sum of those two numbers to your answer.
=> 25 + 15 + 16 + 8 = 64
=> 7 + 9 = 16
=> 64 + 16 = 80
This might be very confusing but I hope this helps :’)
Given (9,4) and (x,−11), find all x such that the distance between these two points is 17. Separate multiple answers with a comma.
Answer:
The points are (1, -11) and (17, -11).
Step-by-step explanation:
The distance between points (x1, y1) and (x2, y2) is
[tex] d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} [/tex]
We have values for x1, y1, and y2. We leave x for x2, and we solve for x.
[tex] 17 = \sqrt{(x - 9)^2 + (-11 - 4)^2} [/tex]
Square both sides.
[tex] 289 = (x - 9)^2 + (-11 - 4)^2 [/tex]
[tex] 289 = x^2 - 18x + 81 + 225 [/tex]
[tex] x^2 - 18x + 17 = 0 [/tex]
[tex] (x - 1)(x - 17) = 0 [/tex}
[tex] x - 1 = 0 [/tex] or [tex] x - 17 = 0 [/tex]
x = 1 or x = 17
The points are (1, -11) and (17, -11).
Using distance between two points, it is found that the values are: x = 17, x = 1.
----------------------------
Distance between two points:
Suppose that we have two points, [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]. The distance between them is given by:
[tex]D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
----------------------------
Points (9,4) and (x, -11).Distance of 17, thus [tex]D = 17[/tex][tex]D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
[tex]\sqrt{(x - 9)^2 + (-11 - 4)^2} = 17[/tex]
[tex](\sqrt{(x - 9)^2 + (-11 - 4)^2})^2 = 17^2[/tex]
[tex](x - 9)^2 + (-15)^2 = 289[/tex]
[tex]x^2 - 18x + 81 + 225 = 289[/tex]
[tex]x^2 - 18x + 17 = 0[/tex]
Quadratic equation with [tex]a = 1, b = -18, c = 17[/tex].
Applying Bhaskara:
[tex]\Delta = b^2 - 4ac = (-18)^2 - 4(1)(17) = 256[/tex]
[tex]x_1 = \frac{-b + \sqrt{\Delta}}{2a} = \frac{-(-18) + \sqrt{256}}{2} = 17[/tex]
[tex]x_2 = \frac{-b - \sqrt{\Delta}}{2a} = \frac{-(-18) - \sqrt{256}}{2} = 1[/tex]
The values are: x = 17, x = 1.
A similar problem is given at https://brainly.com/question/22532602
Given y - 2 = 4(x + 1), the equation in slope-intercept form is
Do not include spaces in your answer
Answer:
Write in slope-intercept form,
y =mx+bxy=4x+6
Step-by-step explanation:
Answer:
y=2x+5
Step-by-step explanation
Replied to your comment lol
In a class where there are a total of 80 pupils, 20 are girls and the remaining
are boys. What percent of the class are boys?
Answer:
75%
Step-by-step explanation:
First find the number of boys.
80 - 20 = 60
Now find the percentage my taking the number of boys upon the total, times that by 100 which gives the percentage.
[tex]\frac{60}{80}[/tex] × 100 = 75%
A+4<9 solve the inequality
Answer:
A < 5
Step-by-step explanation:
Move 4 to other side to isolate for x
A < 9-4
A < 5