Answer:
140 degrees
Step-by-step explanation:
supplementary angles
Answer:
<2=140
Step-by-step explanation:
For this problem since the whole angle is 180 all you do is do 180-40 and you get 140 which is <2
Tim predicts he will get 98 points on the next exam. If Tim actually earned 62 points, what was Tim's percent error?
Answer:
If Tim actually earned 62 points . Therefore Tim's percent error is 58.1 % .
Step-by-step explanation:
Will mark the brainliest
Answer:
C.
X = -5
Step-by-step explanation:
K(x)= -x^2 inverse function SHOW WORK PLEASE HELP FAST
Steps:
See attachment.
Description:
The first step is to simplify the equation step by step and to simplify an equation you can first multiplying the factors and use the exponent rules to remove the parentheses. After that you need to combine it a terms. Then you will get your answer.
For more steps and graph see the attachment.
Answer: k=−x
Hope this helps.
-1(-2)(-3)(-3)
please answer im so confused
what is 7%o of 14.68
Answer:
1.03
Step-by-step explanation:
i multiplied 14.68×.07
hope this is correct and helps
Answer:
1.03
Have a good day! :)
Fill in the blank to solve the expression!
-(-8) = ____
Answer:
The answer is 8
Step-by-step explanation:
Multiply -1 by -8
An online camping supplies outlet charges $14 for a canteen,
and shipping is $2 per order.
Part A
Write an expression that CJ can use to find the total cost in
dollars for ordering n canteens.
Part B
CJ orders 2 canteens and his friend Cameron orders 4 canteens.
What is the total cost, including shipping, for both orders?
Show your work.
Answer:
Part A: 14x + 2
Part B: CJ's order is $30, and Cameron's order is $58.
Step-by-step explanation:
Part A: The total cost of the order would be $14 multiplied by the amount of canteens, plus the shipping price of $2. This is what my expression represents.
Part B:
CJ's Order:
14(2) + 2 =
28 + 2
$30
Cameron's Order:
14(4) + 2 =
56 + 2 =
$58
Hope this helps! :D
50 students are going on a field trip. 20 of the students are boys. What percent of students are girls
Answer:
60%
Step-by-step explanation:
first you make a fraction. 30 ore girls and thats your numerator. the denominator is 50. make it a whole 100 on the denominator. what you do to the bottom fraction you do to the top. we multiple by 2, so 30 is now 60. 60/100. reduce it to its lowest 3/5. divide 3 by 5. its .6. which is 60%
Answer:
60%
Step-by-step explanation:
find the answer in simplest form 3/7x2/3
Answer:
7 6/7 or 7.8571429
Step-by-step explanation:
The simplest form of the given expression (3/7) x (2/3) is 2/7.
The expression is given as:
(3/7) x (2/3)
The numerator will be 3 x 2 = 6, and the denominator will be 7 x 3 = 21.
So, the simplified form of (3/7) x (2/3) is 6/21.
However, we can further simplify this fraction by dividing both the numerator and denominator by their greatest common divisor (GCD), which is 3.
Dividing 6 and 21 by 3 gives us 2 and 7 respectively.
Therefore, the simplest form of (3/7) x (2/3) is 2/7.
Learn more about the fraction here:
brainly.com/question/10354322
#SPJ6
Find the shaded area. Use 3.14 as the approximate value of pi.
Answer:
164.73 cm²
Step-by-step explanation:
Area of the shaded area = area of semi-circle - area of the triangle
Area of the semi-circle:
Area = ½(πr²)
r = ½ of 34 = 17 cm
π = 3.14
Area = ½(3.14 × 17²)
Area = 453.73 cm²
Area of the triangle:
Area = ½*b*h
b = 34 cm
h = 17 cm
Area = ½ × 34 × 17
Area = 289 cm²
Area of the shaded area = 453.73 - 289 = 164.73 cm²
A mail carrier travels at 15 miles per hour through a neighborhood. Which table
represents the distance the mail carrier travels in x hours?
2
G
H
0 1 3
yo 16 18
0 24
yo 30 55
x 135
y 15 45 75
x 134
y 15 40 55
Answer:
Step-by-step explanation:
the table is not copied correctly, I assume
the mail carrier will travel a distance of 15x
Identify the linear function with a slope of -2 and a y-intercept of 1?
a. - 2y = x +1
b. y=-2x
c. y = x-2
d. y=-2x+1
it's d just put them together to equal y
Find the volume of a region bounded by the functions y = 2x + 6, the y-axis, and the x-axis as it revolves
around the x-axis.
GRAPH !
V=
units3
(round to the nearest tenth)
The bounded region in question is a triangle in the second quadrant. The line y = 2x + 6 has intercepts (0, 6) and (-3, 0), so revolving the triangle about the x-axis forms a cone with height 3 and whose circular base has radius 6. Its volume would then π/3 • 6² • 3 = 36π ≈ 113.1 units³.
But you're probably supposed to use calculus. Using the disk method, the integral for the volume is
[tex]\displaystyle V=\pi\int_{-3}^0 (2x+6)^2\,\mathrm dx[/tex]
[tex]\displaystyle V=\pi\int_{-3}^0(4x^2+24x+36)\,\mathrm dx[/tex]
[tex]V=\pi\left(\dfrac43x^3+12x^2+36x\right)\bigg|_{-3}^0=\boxed{36\pi}[/tex]
as expected.
Juanita constructed a number line to test her brother’s understanding of opposites. She tested him on all points that were labeled with letters. Her brother had trouble representing the opposite of point A.
Which represents the opposite of Point A?
Negative (negative 10)
Negative (negative 5)
0
Negative (10)
Answer:
-(10)
Step-by-step explanation:
Answer:
negative (negative 10) is the answer.
Step-by-step explanation:
Find - square root 49
+7
7
-7
24.5
Easy points please put answer
Answer:
7?
Step-by-step explanation:
What is an equation of the line that passes through the point (-1,-7) and is perpendicular to the line x+y=6x
Consider ΔDEF with centroid at point G and median EH. What is GH, if EG=3x+4 and GH=x+10?
Answer:
gh = x+9
Step-by-step explanation:
Wind Mountain is an archaeological study area located in southwestern New Mexico. Potsherds are broken pieces of prehistoric Native American clay vessels. One type of painted ceramic vessel is called Mimbres classic black-on-white. At three different sites the number of such sherds was counted in local dwelling excavations. Site I Site II Site III 28 47 46 54 22 27 44 65 40 16 56 22 21 17 58 36 state the null hypothesis
Answer:
The null hypothesis would be
H0: μ1=μ2=μ3 (all the means of the three sites are equal)
Step-by-step explanation:
Site I Site II Site III
28 47 46
54 22 27
44 65 40
16 56 22
21 17 58
36
The null hypothesis would be
H0: μ1=μ2=μ3 (all the means of the three sites are equal) against the claim
Ha: μ1≠μ2≠μ3 (all the means of the three sites are not equal)
Which if H0 is true, has an F -distribution with v1=k-1 and v2= n-k degrees of freedom.
ANOVA (one way of analysis of variance ) can be applied to test this hypothesis.
So I need help with this. Why Do we seat?
Answer:
When we stand our muscles are working a little bit, and if we're moving around, our muscles are working even more, so we sit down to take a little bit of a break, but the problem starts when we sit down for too long. ... If we sit for too long, it's not good for our heart.
Step-by-step explanation:
hope this helps
Solve 4e^1+3x-9e^5-2x=0
Answer:
its 24x trust me I did this
There are49 students on a tour.Each guide can take 5 students.How many guides are needed?Explain.
Find the measure of angle A.
Answer:
30 degrees
Step-by-step explanation:
Keep this in mind, ALL triangles must equal 180 degrees.
This is an acute triangle, hence one of the angles is 90 degrees. To find the other two angles, we must solve for x. Since we know the sum of all angles in this triangle must equal 180 degrees, we know for setting up our equation, all the angles should equal 180.
[tex]90 + (x+37) + (x+67) = 180\\[/tex]
Now solve for x by isolating x
[tex]2x + 194 = 180\\2x=-14\\x=-7[/tex]
Our x is -7, now that we know that the numerical value of x is -7, replace x with -7 for angle A.
-7 + 37 = 30
<A is 30 degrees.
Check your work
Plug in -7 where you see x.
[tex]90 + (x+37) + (x+67) = 180\\90 + (-7+37) + (-7+67) = 180\\90 + 30 + 60 = 180\\180 = 180[/tex]
Turns out this was a 30-60-90 triangle. ✅
Kevin went fishing and is using a scatterplot to analyze the relationship between the weight of each of the fish he caught in pounds and in kilograms. He uses the weight in pounds as the independent variable and the weight in kilograms as the dependent variable. Which statement is correct?
The points on the scatterplot will go up from left to right because as the weight in pounds increases, the weight in kilograms increases.
The points on the scatterplot will go up from left to right because as the weight in pounds increases, the weight in kilograms decreases.
The points on the scatterplot will go down from left to right because as the weight in pounds increases, the weight in kilograms increases.
The points on the scatterplot will go down from left to right because as the weight in pounds increases, the weight in kilograms decreases.
Answer:
The answer is A.The points on the scatter plot will go up from left to right because as the weight in pounds increases, the weight in kilograms increases, because when the pounds (lbs.) increases, the kilograms (kg.) increase.
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
just did the quiz and got it right
Pls help me I am d$mb...
Answer:
ur not domb
Step-by-step explanation:
i need help with this please! will give brainiest if answered correctly
Answer:
The correct answer is B. 0.75.
Step-by-step explanation:
In order to solve this problem, we just need to add the probabilities of all the age groups that include 35-64.
35-44 Age Group Probability: 0.14
45-54 Age Group Probability: 0.29
55-64 Age Group Probability: 0.32
0.32 + 0.29 + 0.14 = 0.75
Therefore, the correct answer is B. 0.75.
Hope this helps! :D
Find the value of X, then find AB and DC.
(opposite sides are congruent)
AB= 3x+8
DC= x+12
Answer:
x = 2
AB = 14
DC = 14
Step-by-step explanation:
If opposite sides are congruent, then:
AB = DC
AB = 3x + 8
DC = x + 12
Thus:
3x + 8 = x + 12
Collect like terms
3x - x = -8 + 12
2x = 4
Divide both sides by 2
x = 2
AB = 3x + 8
Plug in the value of x
AB = 3(2) + 8 = 14
DC = x + 12
Plug in the value of x
DC = 2 + 12 = 14
Polly buys 14 cupcakes for the party. the bakery puts them into boxes that hold 4 cupcakes each.
how many boxes will be needed for Polly to bring all the cupcakes to the party? Explain
Answer:
11 boxes
Step-by-step explanation:
14 didived by 4 is 10.25 so if you round you should get 11 .
Answer:
4, If you round.
Step-by-step explanation:
If you divide the 14 by 4, you get 3.5 and you can't really break the box in half.
So, you would have to use 5.
21.6 Computer use. A random sample of 197 12th-grade students from across the United States was surveyed, and it was observed that these students spent an average of 23.5 hours on the computer per week, with a standard deviation of 8.7 hours. If we plan to use these data to construct a 99% confident interval, the margin of error will be approximately (a) 0.07. (b) 0.62. (c) 1.6. (d) 8.7.
Answer:
(c) 1.6
Step-by-step explanation:
Calculation for what the margin of error will be approximately
First step is to calculate Total hours spent
Total hours spent = (197 * 23.5 hours)
Total hours spent =4,625 hours
Second step is to find the square root of the sample size
Sample size=√197
Sample size=14.04
Third step is to divide the Standard deviation of 8.7 hours by square root of sample size of 14.04
= 8.7 hours /14.04
= 0.6196
Fourth step is to use the Z table to find Z value at 99% confidence
Z value at 99% confidence = 2.58
Last step is to calculate the Margin of error
Margin of error = 0.6196 * 2.58
Margin of error = 1.59857
Margin of error= 1.6 (Approximately)
Therefore what the margin of error will be approximately is 1.6
Can someone pls help
Answer: Graph A and Graph C hope this helps
Step-by-step explanation:
Answer:
A and C
Step-by-step explanation:
They both pass though the origin.
Write an equation for the line that passes through (2,-1) and is parallel to the line y= 3x+8?
Answer:
y= 3x + 5
Step-by-step explanation:
If it is parallel it has the same slop so we know mx = 3x
then solve for b
-1 = 3(2) + b
-1 = 6 + b
5 = b