Answer:
19+8*5+8=67
Step-by-step explanation:
when you add 19 with 8 then you times it with 5 then add 8 you get 67
Answer:
67
Step-by-step explanation:
Find the curcumince of the circle. use 3.14 or 22/7.
Answer:
the circumference of this circle is approximately 25.12 cm with π as 3.14.
Step-by-step explanation:
circumference of a circle is technically a perimeter of a circle.
we find the circumference of a circle by using the following formula :
c = 2πr or c = πd
r represents the radius d represents the diameter
since 4 yds here is a radius, we use the left formula i placed above. then, we substitute the numbers in. pi represents 3.14 as said in your question. even if you use 22/7, you will still get around the same result.
c = 2πr
c = 2(3.14)4
c = 6.28(4)
c = 25.12 yds
therefore, the circumference of this circle is approximately 25.12 yds.
Jessica weighs 10 less than three times as much as her little sister. If x represents her sister's weight, what is an expression Jessica can
use to figure out her own weight? Explain your thinking and how you got your answer.
Answer:
Step-by-step explanation:
J=3x-10
We are told Jessica weighs 10 less than 3 times her sister’s weight and told that her sister’s weight was x.
What fraction of the shape is shaded? plssss help
Answer:
2/6
Step-by-step explanation:
Answer:
1 1/2 of the shape is shaded
Step-by-step explanation:
Hope this helps!
62% of the people in a cinema are children.
If there are 93 children in the cinema, calculate the total number of people in the
cinema.
You must show your calculations. *
2 Points)
Enter your answer
Answer:
143
Step-by-step explanation:
62/2=31
93/2=46.5
62%+31%=93%
93+46.5= 139.5
7-3=4
4% of 93= 3.72
139.5+3.72= 143.22
theres no such thing as 0.22 of a person so its 143
Find the discriminant.
r2-6r+8=0
How many real solutions does the equation have?
no real solutions
one real solution
two real solution
Help me pls would be appreciated
Answer:
Sphere volume is this formula
V=(4/3)πr^3
plug in 21 for r in this formula
If you are meant to round pi to 3.14 the answer is = 38722.72
If you are not meant to round pi to 3.14 the answer is = 38792.39
How to solve this maths problem?
Pls help
Answer:
Step-by-step explanation:
(a) The length and breadth of the playground as measured by the surveyor are 20 m and 13 m respectively to nearest metre.
Since the actual length is x m and breadth is y m, then;
i. x ≥ 20 m or x ≤ 20 m
ii. y ≥ 13 m or y ≤ 13 m
(b) perimeter of the playground = 2 (length + breadth)
= 2 ( 20 + 13)
= 2 x 33
= 66 m
The range of values of the perimeter = 65.4 m < perimeter < 66.5 m
ii. area of the playground = length x breadth
= 20 x 13
= 260 [tex]m^{2}[/tex]
The range of values of the area = 259.4 [tex]m^{2}[/tex] < Area < 260.5 [tex]m^{2}[/tex]
On a snowy winters eve two candles are lit at the exact same time. A 18-inch candle and a 21-inch candle are lit at the exact same time. The 18-inch candle burns 2 inches every hour. The 21-inch candle burns 3 inches every hour. Create a system of equations using the information
Answer:
y=21-3x and y=18-2x
Step-by-step explanation:
Ok, so we have candle A, which is 21 inches and burns 3 inches every hour. in slope-intercept form, the hours would be the x, the 21 is our y intercept. So the first equatio would be y=-3x+21 (negative slope, because the height of the candle is going down). Candle b, which is 18 inches, burns away 2 inches each hour. We can make -2 the slope (negative 2, since the candle is being burned away, not being added to), and the 18 our y intercept. So the two equations would be
y=21-3x
and
y=18-2x
hope this helps!
I need help please help
PLS HELP MULTPLE CHOICE
Answer:
(-2,-1)
Step-by-step explanation:
Fill in the blank:
(2x + 3)(x + 1) = 2.2 + ___+3
A)-5
B)3
C)0
D)5
What is the formula used to find the area of this
shape? *This symbol: / means divided by
A= b xh/2
A= I xw
A=s2
A= (b1 +b2)h/ 2
Answer:
A = (b1 + b2)h/2
Step-by-step explanation:
The shape given is a trapezoid having two parallel sides which can be labelled b1 and b2 respectively. The distance between the two parallel sides is the height of the trapezoid, which is labelled h.
Area of a trapezoid is given as:
A = (b1 + b2)h/2
Shoppers at a mall have a mean weight of 70 kg 70kg70, start text, k, g, end text with a standard deviation of 10 kg 10kg10, start text, k, g, end text. An elevator at the mall holds a maximum of 6 66 people, and safety engineers are curious about the average weight of shoppers on a full elevator. Suppose that we take random samples of 6 66 shoppers and calculate the mean weight x ˉ x ˉ x, with, \bar, on top of the shoppers in each sample.
Answer:
The answer is below
Step-by-step explanation:
Shoppers at a mall have a mean weight of 70 kg with a standard deviation of 10 kg. An elevator at the mall holds a maximum of 6 people, and safety engineers are curious about the average weight of shoppers on a full elevator. Suppose that we take random samples of 6 shoppers and calculate the mean weight x ˉ on top of the shoppers in each sample.
Solution:
Let variable x represent the weight of a shopper at the mall.
Assuming this variable has a normal distribution with mean μ= 70kg and standard deviation σ = 10kg.
There are random samples of 6 shoppers. That is sample size (n) = 6
The mean of the sample (μₓ) is the same as the mean of the population (μ), hence:
μₓ = μ = 70 kg
The standard deviation of the sample (σₓ) is equal to the standard deviation of the population (σ) divided by the square root of the sample size (n).. Hence:
σₓ = σ / √n = 10 / √6 = 4.08 kg
Answer:
Mean: 70
Standard Deviation: 4.1
Step-by-step explanation:
Khan Academy Answer
Hari's weekly allowance varies depending on the number of chores he does. He received $18 in allowance the week he did 10 chores, and $16 in allowance the week he did 6 chores. Write an equation for his allowance in slope-intercept form.
Answer:
y=1/2x+13
Step-by-step explanation:
The slope-intercept form is: y=mx+b, where m is the slope and b is the y-intercept of the line. First, you have to calculate the slope using the following formula:
m=y2-y1/x2-x1
You have two points: (6, 16), (10,18) as the chores are the independent variable which is x, and the money is the dependent variable which is y.
Now, you can replace the values in the formula:
y2=18
y1=16
x2=10
x1=6
m=(18-16)/(10-6)
m=2/4
m=1/2
Now, you use the point-slope formula:
y-y1=m(x-x1)
You have to replace the value of the slope and one point and solve for y:
y-16=1/2(x-6)
y-16=1/2x-3
y=1/2x-3+16
y=1/2x+13
According to this, the answer is that the equation for his allowance in slope-intercept form is: y=1/2x+13.
I will mark Brainliest!!! Hurry
Answer:
Yes
Step-by-step explanation:
Congruent means equal in size and they both are 84 cm therefore they are congruent
wrote a simplified expression for the perimeter of the triangle
pls help i’ll give brainialist
Answer:
here, you are simply asked to find perimeter
so add all sides to find it. soln is below
a+5+2a-1+3a-7 = 6a-3= 3(2a-1) ans
Which points lie on a circle that has its center at the origin and contains the point (0, 3)?
Answer:
(1,2[tex]\sqrt{2}[/tex])
What is the volume of a pyramid with a base area of 102 square units and a height of 13 units? 1) 442 units 2) 663 units 3) 1326 units 4) 3978 units.
Answer:
3
Step-by-step explanation:
HOPE THIS HELPS SORRY FOR CAPS
Which equation can be used to solve for x in the following diagram?
(10x + 10)
110°
Choose 1 answer:
(10x + 10)
= 110
(10x + 10) = 90
(10x + 10) - 110 = 90
(10x + 10) + 110 = 180
Answer:
the answers (10x+10)=110
Step-by-step explanation:
A piece of rural land sold ten years ago for 40000. The price for the same land this year is $800 more per acre, and it sold for 60000. What is the size of the piece of land in acres?
Answer: 25
Step-by-step explanation:
From the question, we are informed that the piece of rural land sold ten years ago for 40000 and that the price for the same land this year is $800 more per acre, and it sold for 60000.
The size of the piece of land in acres will then be:
40000 + 800x = 60000
800x = 60000 - 40000
800x = 20000
x = 20000/800
x = 25
The land is 25 acres
Answer: 25
Step-by-step explanation:
40000 + 800x = 60000800x = 60000 - 40000800x = 20000x = 20000/800x = 25
The vertices of triangle JKL are J(–2, 3), K(1, 6), and L(3, –2). Which type of triangle best describes triangle JKL
A. right scalene
B. non-right scalene
C. right isosceles
D. non-right isosceles
Answer:
Scalene triangle or right scalene triangle is correct
Step-by-step explanation:
I don’t know how to do this....Help me please!!
What set of numbers does NOT contain -7?
o integers
rational numbers
real numbers
whole numbers
Answer:
Step-by-step explanation:
the answer is whole number, explination : A whole number is any number that does not contain a fraction, decimal, or negative value. For example, 1, 25, and 365 are whole numbers
Quadrilateral BCDE is inscribed in circle A. The measure of ⏜ is 73°. The measure of ⏜ is 53° and the measure of ⏜ is 102°. Determine the measure of ∠ BCD.
Answer: c
Step-by-step explanation:
2a.) A(t) is the average high temperature in Aspen, Colorado, "t" months after the
start of the year. M(t) is the average high temperature in Minneapolis, Minnesota,
"t" months after the start of the year. Temperature is measured in degrees
Fahrenheit. Which function had the HIGHER average rate of change between the
beginning of January and middle of March? *
Answer:
As you didn't add the graph, I will for you.
Step-by-step explanation:
The correct answer is Minneapolis because as you can see Aspen did not change as dramatically as Minneapolis.
The start of January and the middle of March, Minneapolis, or function M(t), had a larger average rate of change. It means that Minneapolis experiences a greater increase in temperature than Aspen does.
What is meant by function?A mathematical formula, rule, or legislation that establishes the link between the independent variable and the dependent variable (the dependent variable). In mathematics and the sciences, functions are fundamental for constructing physical relationships.
In the beginning of January, Aspen's temperature was 35° F, and in the middle of March, it was 48° F. 3.5 months later Minneapolis has lows of 25 degrees Fahrenheit in January and highs of 50 degrees Fahrenheit in the middle of March (at 3.5 months).
So, the average rate of change of temperature of Aspen between the points (1, 35) and (3.5, 48) exists
[tex]$\frac{y_2-y 1}{x_2-x_1}=\frac{48-35}{3.5-1}=5.2$[/tex]
The average rate of change of temperature of Minneapolis between the points (1, 25) and (3.5, 50) is [tex]$\frac{50-25}{3.5-1}=10$[/tex]
Thus, from the start of January and the middle of March, Minneapolis, or function M(t), had a larger average rate of change. It means that Minneapolis experiences a greater increase in temperature than Aspen does.
To learn more about function refer to:
https://brainly.com/question/11624077
#SPJ2
Estimation on a scale drawing of a fence, 3.75 inches represent 24 feet . what. is the actual length of a second fence is 2.8 inches in the drawing?
The exact length of the second fence is __ feet.
Answer: 17.92 feet
Step-by-step explanation:
From the question, we are informed that the estimation on a scale drawing of a fence is that 3.75 inches = 24 feet.
Based on the above, 1 inch will be:
= 24/3.75
= 6.4 feet
Therefore, the actual length of a second fence that is 2.8 inches in the drawing will be:
= 6.4 × 2.8
= 17.92 feet
Rachel and Keegan are building a stand like the one shown to display framed photos. what is the surface area of the stand? length 7ft, width 1ft, height 2ft.
Answer:
it a because digkjg
Step-by-step explanation:
1 goes to 2 adnd it stops like that
A therapist wanted to determine if yoga or meditation is better for relieving stress. The therapist recruited 100 of her high-stress patients. Fifty of them were randomly assigned to take weekly yoga classes and the other 50 were assigned weekly meditation classes. After one month, 30 of the 50 patients in the yoga group reported less stress, and 35 of the 50 patients in the meditation group reported less stress. The therapist wants to construct a 95% confidence interval for the difference in proportions of patients experiencing stress relief after yoga and after meditation. Are the conditions for inference met?
Yes, the conditions for inference are met.
No, the 10% condition is not met.
No, the randomness condition is not met.
No, the Large Counts Condition is not met.
Answer:
A. Yes, the conditions for inference are met.
Explanation:
100%
Two 7th grade , Monique and Matt, both solved the following math problem.
If the temperature drops from 30*F to -5*F by how much did the temperature decrease?
The students came up with different answers.Monique said the answer is 35*F , And Matt said the answer is 25*F. Who is correct?
Answer:
Monique is correct
Step-by-step explanation:
The actually temperature decrease = 30 - (-5) = 35*F
Monique is correct
A system of two equal equations is shown below
3x + y = 8
4x - 2y = 3
What is the solution of the system?
Answer:
x=1.9
y=2.3
Step-by-step explanation:
I hope this helped.