Step-by-step explanation:
a(n) = a +(n-1)d
d=1/4 -1/2 =-1/4
°.° a(15) = 1/2 +(15–1) -1/4
a(15) = 1/2 -3.5
=-3
hope it will help
let 'm' be mid value of class and 'L' be upper limit in frequency table. The lower limit of class is ? Please prove and answer
Answer:
Lower Limit = 2m-L
Step-by-step explanation:
Given that,
The mid value of class = m
Upper limit in the frequency table = L
We need to find the lower limit of the class.
The mid value of a class is given by :
[tex]\text{mid-value}=\dfrac{\text{lower limit + upper limit}}{2}\\\\m=\dfrac{L+\text{lower limit}}{2}\\\\2m=L+\text{lower limit}\\\\\text{lower limit}=2m-L[/tex]
Hence, the lower limit of the class is 2m-L.
I need help .pls no random typo answers
Answer:
B) 12
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightEquality Properties
Trigonometry
[Right Triangles Only] Pythagorean Theorem: a² + b² = c²Step-by-step explanation:
Step 1: Identify Variables
Leg a = x
Leg b = 5
Hypotenuse c = 13
Step 2: Solve for x
Substitute [PT]: x² + 5² = 13²Isolate x term: x² = 13² - 5²Exponents: x² = 169 - 25Subtract: x² = 144Isolate x: x = 12Given the figure above find the value of x and z
Answer:
x = 4, z = 77
Step-by-step explanation:
From the figure attached,
(15x + 43)° = (8x + 71)° [Vertically opposite angles]
15x - 8x = 71 - 43
7x = 28
x = 4
Therefore, (15x + 43)° = (15×4 + 43)°
= 103°
Now, z° + (15x + 43)° = 180° [Linear pair of angles]
z° + 103° = 180°
z° = 180 - 103
z = 77
Therefore, x = 4 and z = 77 is the answer.
What is the area of the garden?
Answer:
104
Step-by-step explanation:
8(rt 13)(rt 13)
8(13)
104
A turtle can crawl up to 120 feet per hour. What is this speed in inches per minute?
Answer:
It can crawl 24 inches in 1 minute.
Step-by-step explanation:
1. We know 1 ft = 12 in, so 120 ft = 1,440 in.
2. If the turtle can crawl 1440 inches in 1 hour, that's equivalent to crawling 1440 inches in 60 minutes.
3. we can write this as a fraction and then multiply the denominator 60 by itself to find how many inches per minute the turtle can crawl.
4. 1440/60 ×60/60 =24/1
At a movie theater they sell hotdogs and popcorn. The first hour they sold 15 popcorns and 14 hotdogs for a total of $84. The second hour they made $99 selling 18 popcorns and 16 hotdogs. What is the price of 1 hotdog and 1 popcorn? Can anyone help please.
Answer:
1 hotdog cost $2.25
1 popcorn cost $3.5
Step-by-step explanation:
Let the price of hotdog be and that of popcorn be p
For the first hour;
15p + 14h = 84 •••• (i)
for the second hour;
18p + 16h = 99 •••••(ii)
so we want to solve these two equations simultaneously
In equation 1,
14h = 84-15p
h = (84-15p)/14
Simply insert this into equation ii
18p + 16(84-15p)/14 = 99
Multiply through by 14
252p + 1344 - 240p = 1386
1386-1344 = 252p-240p
12p = 42
p = 42/12
p = $3.5
to get cost of hotdogs;
h = (84-15p)/14
Substitute p = 3.5
h = (84-52.5)/14
h = 31.5/14
h = 2.25
Question 3 (2 points)
Use the figure below to answer the following questions. Find the measure of each angle.
Answer:
∠ 1 = 70°, ∠ 2 = 140
Step-by-step explanation:
110° and the adjacent angle inside the triangle are supplementary, then
angle = 180° - 110° = 70°
Since 2 sides of the triangle are congruent, then the triangle is isosceles
Thus the 2 base angles are congruent, then
∠ 1 = 70°
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
∠ 2 is an exterior angle of the triangle, thus
∠ 2 = 70° + 70° = 140°
If the selling price for laptop is $1100 and is marked down by 30% in promotional offers, then sale price after discount is
Answer:
770
Step-by-step explanation:
30 percent of 1100 is 330. 1100 - 330 is 770.
Answer:
770
Step-by-step explanation:
30 % of 1100 = 330. 1100 - 330 = 770.
What is the value of x?
A 42
В.50
C. 68
D. 70
Mrs Wall usually buys 12 pints of milk each week and pays her milkman £3.72. One week she had visitors and ordered an extra 3 pints. How much was her bill?
Answer:
£4.65 is her bill
Step-by-step explanation:
Here, we firstly need to calculate the unit price of a pint
Mathematically, in this case, that will be 3.72/12 = 0.31
ordering 3 extra pints means she would be buying a total 15
The price of this will be;
0.31 * 15 = £4.65
Find the quotient from the question above and explain what it means in each case.
Answer:
no
Step-by-step explanation:
Simplfy [tex]8x-5+2x\frac{x}{y}[/tex]
Answer:
[tex]8x-5+2x\dfrac{x}{y}[/tex] = [tex]\dfrac{8xy-5y+2x^2}{y}[/tex]
Step-by-step explanation:
In this question, we need to simplify [tex]8x-5+2x\dfrac{x}{y}[/tex]
We can convert elements to fractions.
[tex]8x=\dfrac{8xy}{y},\:5=\dfrac{5y}{y}[/tex]
= [tex]\dfrac{8xy}{y}-\dfrac{5y}{y}+\dfrac{2x^2}{y}[/tex]
As the denominators are equal, we can combine the fractions as follows :
=[tex]\dfrac{8xy-5y+2x^2}{y}[/tex]
Hence, the simplified form is : [tex]8x-5+2x\dfrac{x}{y}[/tex] = [tex]\dfrac{8xy-5y+2x^2}{y}[/tex]
Can anyone help me, I think we need to use desmos
Answer:
2 B l x Pattinson f s rıhtım dese rüyamın merhaba canım 53 nasılsın nasılsın bir yöntem
The ratio pens to pencils in the pencil case is 2 to 3. If there are 18 pens, how many PENS AND PENCILS are there in the pencil case
Answer:
45
Step-by-step explanation:
its hard o type but trust me
Answer:
45
Pencils: 18
Pens: 27
Step-by-step explanation:
for every 2 pens there is 3 pencils
to have 18 pens ou multiply by 9
what you do to one you do to the other so just multiply the pencil by 9 so,
9 x 3 = 27
there is 18 pens and 27 pecils
PENS AND PENCILS:
18 + 27 = 45
How long is the fence around the softball field?
Answer: 456
Step-by-step explanation:
20 POINTS and BRAINLIEST
Solve the simultaneous equation!
Answer:
x=7 y=-2
Step-by-step explanation:
Searches related to Two spoiled dogs eat a total of 18 treats in a certain amount of time. How many spoiled dogs will eat 126 treats in the same amount of time, assuming each dog eats treats at the same rate?
If I saved $15.00 off a coat that originally cost $25.00, what percent did I save?
Answer: 60%
Step-by-step explanation:
if the coat is 25 dollars, 10% of the coat is 2.50
15 dollars /2.5=6
you saved 60 percent
Triangles J K L and M N R are shown.
In the diagram, ∠J ≅ ∠M and JL ≅ MR. What additional information is needed to show ΔJKL ≅ △MNR by SAS?
KL ≅ NR
∠L ≅ ∠R
∠K ≅ ∠N
JK ≅ MN
Answer:
JK ≅ MN
Step-by-step explanation:
SAS states that any two sides of the angle and the angle itself, if , of two triangles are equal the two triangles are equal.
It is given that ∠J ≅ ∠M and JL ≅ MR i.e an angle and a side are equal. We need one more side to prove that the two triangles are equal.
If we look at the diagram closely we see that the angles J and M are formed by the sides JK & JL and MN& MR.
It is given that JL ≅ MR so we are left with JK ≅ MN
The additional information needed prove that ΔJKL ≅ ΔMNR by SAS Congruence Theorem is: D. JK ≅ MN
Recall:
The SAS Congruence Theorem proves that two triangles are congruent to each other if they have two pairs of congruent sides and a pair of included congruent angles.The image attached below shows ΔJKL and ΔMNR where we are given the following:
∠J ≅ ∠M (one pair of congruent angles).
JL ≅ MR (one pair of congruent sides).
Therefore, the additional information needed prove that ΔJKL ≅ ΔMNR by SAS Congruence Theorem is: D. JK ≅ MN
Learn more about the SAS Congruence Theorem on:
https://brainly.com/question/2644126
Please help me, TYSM !!❣
Answer:
A
Step-by-step explanation:
thats my best guess, but im not positive sorry if im wrong!
Please help, I'll give brainliest!! Tysm
Answer:
C.
Step-by-step explanation:
Negative exponents on the top is equivalent to them being positive in the bottom.
Mikhail has $4.15. If he buys one pack of candy canes, how much money does he have left? (the candy canes are $2.45 FOR A PACK OF 4 candy canes)
Answer:
1.70$
Step-by-step explanation:
$4.15-$2.45
=1.70$
Answer:
$1.70
Step-by-step explanation:
If you subtract the price of one pack of candy canes from how much money he has you get $1.70
(hope this helps)
Un almuerzo cuesta $12.95 pero tiene un 8% de impuestos, cuánto pagará el cliente en total
A:$13.99
B:$1.04
C:11.91
Answer:
why is it is Spanish? you lucky i got googl e translate. it is B.
Step-by-step explanation:
Lindsey Smith was the top scorer in a women's professional basketball league for the 2006 regular season, with a total of 864 points. The number of two-point field goals that Lindsey made was 62 less than double the number of three-point field goals she made. The number of free throws (each worth one point) she made was 30 less than the number of two-point field goals she made. Find how many free throws, two-point field goals, and three-point field goals Lindsey Smith made during the 2006 regular season.
Answer:
Number of 3 point goals = 85
Number of 2 point goals = 3(85) - 62 = 193
Number of free throws = 3(85)- 32 = 223
Step-by-step explanation:
Given that :
2 point goals
Number of 3 point goals = x
Number of 2 point goals = 3x - 62
Number of free throws = 3x - 62 - 30 = 3x - 32
3x + 2(3x - 62)+ 3x - 32= 864.
3x + 6x - 124 + 3x - 32 = 864
12x = 864+ 124 + 32
12x =1020
x = 1020 / 12
x = 85
Number of 3 point goals = 85
Number of 2 point goals = 3(85) - 62 = 193
Number of free throws = 3(85)- 32 = 223
A square tile has a width of 1/4 foot. How many tiles will fit end-to-end along a 4-foot wall?
Answer:
16 tiles
Step-by-step explanation:
Divide the length of the wall by the width of one tile.
4 / 1/4 = 4/1 * 4/1 = 16/1 = 16
Answer: 16 tiles
Mirah has breakfast at a reaturant. She leaves an 20% tip of $1.80
Answer:
.36
Step-by-step explanatio
please help, i’ll give brainly
Answer:
hope it helps
Step-by-step explanation:
1: 4
2:2
3:1
4:3
GIVE ME BRAINIEST!!!!!
thanks!
Find the value of below algebriac expression for x=2,y=-1 and z=2 i. 4x2−3y2+5z24x2−3y2+5z2 ii. 3x3−2x(4yz+5x2)3x3−2x(4yz+5x2) iii. 1−4x(yz+3xy)1−4x(yz+3xy)
Answer:
i. 33
ii. 1488
iii. 65
Step-by-step explanation:
i. 4x² − 3y² + 5z²
Putting the values x=2, y=-1 and z=2
4(2)² − 3(-1)² + 5(2)²
4×4 − 3×(1)² + 5×(4)
(16) - (3×1) + (20)
16 - 3+ 20
36 - 3
33
ii. 3x³ − 2x(4yz+5x²)
Putting the values x=2, y=-1 and z=2
[3(2)³ − 2×2(4×(-1)×2 + 5×(2)²)]
[3(8)³ − 2×2(-8 + 5×4)]
[3 ×512 - 2×2(-8 +20)]
[1536 - 4(12)]
[1536 - 48]
1488
iii. 1−4x(yz+3xy)
Putting the values x=2, y=-1 and z=2
[1 - 4 × 2((-1)×2 + 3×2×(-1))]
[1- 8(-2 + (-6))]
[1- 8 (-2 -6)]
[1 - 8(-8)]
[1 +64]
65
The yellow turtle country covered 33 cm in six minutes her speed as a unit rate is blank a country walk blank in one minute
Answer:
5.5 cm/minute
Step-by-step explanation:
Given that,
The yellow turtle country covered 33 cm in six minutes.
To find unit rate, divide distance covered by the time.
Here, distance = 33 cm
Time, t = 6 minutes
[tex]R=\dfrac{33\ \text{cm}}{6\ \text{minutes}}\\\\=5.5\ \text{cm/minutes}[/tex]
Hence, the unit rate is 5.5 cm/minute. It means, Courtney covered 5.5 cm in one minute.
What is 8/9 minus 5/6
Answer:
1/18
Step-by-step explanation: