Answer:
Multiplication
Step-by-step explanation:
Multiplication should be the first step Reba needs to do to simplify the expression. This is according to PEMDAS, which is an acronym for the order to solve equations
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
Answer:
multiplicationStep-by-step explanation:
Every 2/3 hour, Harris can sew 1/6 pair of jeans. What is Harris's rate in pairs of jeans per hour?
A 1/9
B 1/4
C 9
D 4
Answer:
0.25 or 1/4 is the answer
Step-by-step explanation:
(1/6)/(2/3) = 1/6 * 3/2 = 3/12 = 1/4
Which set of ordered pairs does not represent a function?
{(-4, 2), (2,3), (-7,2), (-9, -4)}
{(2,5),(-8,6), (8,3), (-8,-4)
{(1, -7), (-8,-6), (-9,-6), (-1,-2)}
{(2, 2), (-9,-8), (-4,-5), (8, 2)}
Answer:
{(2,5),(-8,6), (8,3), (-8,-4)
Step-by-step explanation:
B/C -8 repeats twice in the x-axis which is wrong
Find the amplitude of y = -2 sin x.
-2π
2π
2
pi divided by two
Answer:
Find the amplitude of y = -2 sin x.
-2π
2π
2
pi divided by two
Step-by-step explanation:
help
PLEASE HELP!! WILL GIVE BRAINLIEST + 25 POINTSS
What is the value of r?
1.9r+0.1r=0.6
Enter your answer as a decimal in the box.
Answer:
0.3
Step-by-step explanation:
1.9r + 0.1r = 0.6
Add like terms on the left side.
2r = 0.6
Divide both sides by 2.
r = 0.3
Answer:
3.333 continued
Step-by-step explanation:
Add 1.9r and .1r because they are like terms and you get 2r
Divide 2/.6
r = 3.3333
with what number we should multiples -9/28,so that the product be -24/49
JK= 4x+3,
JL= 47,
KL= 9x+5
Find KL
Answer:
x = 3Step-by-step explanation:
JK + KL = JL
(4x + 3) + (9x + 5) = 47
4x + 9x = 47 - 3 - 5
13x = 39
x = 39 / 13
x = 3
Daisy's Flower Shop sold 135,643 flowers during its first year. The second year, the shop sold 9,756 more flowers than it did its first year. The third year, it sold 1,345 more flowers than it did in the second year.
How many flowers did the shop sell during the three years?
Daisy's Flower Shop sold flowers during the three years.
Answer:
427,786 Flowers
Step-by-step explanation:
135, 643 + 9,756 = 145,399
145, 399 + 1,345 = 146,744
135,643 + 145,399 = 281,042 + 146,744 = 427,786
What Is 1+1X4-2 This Is Easy
Answer: 3
Step-by-step explanation: PEMDAS
First you multiple 1 and 4 then add 1 and subtract it by 2/
Answer:
0
Step-by-step explanation:
1 x 4 = 1 1 + 1 = 2 2 - 2 = 0
Drag each angle measure to the correct location. Each angle measure can be used more than once.
In the figure, two parallel lines are cut by a transversal. Two of the angles are labeled. Find the measures of the other angles and label them.
Answer:
[tex]4 > {47 + 1 = fs \cos( \cos(34 + \sqrt[33]{?} ) ) \times \frac{?}{?} }^{?} [/tex]
ok I hope it's good answer
Answer: there u go i hope it helps
Step-by-step explanation:
16x-5=5+11x I really dont get these
Answer:
x = 2
Step-by-step:
16x - 5 = 5 + 11x
16x - 11x = 5 + 5
5x = 10
/5 /5
x = 2
Good Luck
Answer: x=2
If I Helped, Please Mark Me As Brainliest, Have A Great Day :D
How do you do this question?
Step-by-step explanation:
S = ∫ 2π y ds
ds = √(1 + (dx/dy)²) dy
ds = √(1 + (8y)²) dy
ds = √(1 + 64y²) dy
S = ∫₁² 2π y √(1 + 64y²) dy
S = π/64 ∫₁² 128y √(1 + 64y²) dy
S = π/64 [⅔ (1 + 64y²)^(³/₂)] |₁²
S = π/96 (1 + 64y²)^(³/₂) |₁²
S = π/96 (1 + 256)^(³/₂) − π/96 (1 + 64)^(³/₂)
S = π/96 (257√257) − π/96 (65√65)
S = π/96 (257√257 − 65√65)
the length of a rectangle is 24 feet more than the width. The perimeter of the rectangle is 88 feet. What is the length and width of this rectangle?
Answer:
W = 10 ft
Step-by-step explanation:
Represent the length by L and the width by W. Then L = W + 24.
The perimeter is P = 2W + 2L, or 88 ft. Thus, after substituting L = W + 24,
88 ft = 2W + 2(W + 24), or
88 = 2W + 2W + 48, or, after reduction,
44 = 2W + 24, or
2W = 20, and so W = 10 ft
The length of the rectangle is 34 feet.
The given parameters;
perimeter of the rectangle, P = 88 feet.let the width of the rectangle = wthen, the length of the rectangle, L = 24 + wThe length of the rectangle is calculated as follows;
P = 2(L+ w)
P = 2(24 + w + w)
P = 2(24 + 2w)
88 = 48 + 4w
subtract 48 from both sides of the equation;
88 - 48 = 4w
40 = 4w
w = 10
Now, solve for the length;
L = 24 + w
L = 24 + 10
L = 34 feet
Thus, the length of the rectangle is 34 feet.
Learn more here:https://brainly.com/question/18869010
JK in the coordinate plane has endpoints with coordinates (-4, 11) and (8,
1)
Suppose J, P, and K are collinear on JK and JP:JK = }. What are the coordinates of P?
The coordinates of P are
Answer:
(0, 7)
Step-by-step explanation:
Given:
J(-4, 11)
K(8, -1)
JP:JK = 1/3
Required:
Coordinates of P
SOLUTION:
Use the formula, [tex] (x, y) = (x_1 + k(x_2 - x_1), y_1 + k(y_2 - y_1)) [/tex] to find the coordinates of point P, that partition the segment JK into the ratio 1/3.
Let,
[tex] J(-4, 11) = (x_1, y_1) [/tex]
[tex] K(8, -1) = (x_2, y_2) [/tex]
[tex] k = \frac{1}{3} [/tex]
Thus, plug in the values as follows:
[tex] P(x, y) = (-4 + \frac{1}{3}(8 -(-4)), 11 + \frac{1}{3}(-1 - 11) [/tex]
[tex] P(x, y) = (-4 + \frac{1}{3}(12), 11 + \frac{1}{3}(-12) [/tex]
[tex] P(x, y) = (-4 + \frac{12}{3}, 11 + \frac{-12}{3}) [/tex]
[tex] P(x, y) = (-4 + 4, 11 + (-4) [/tex]
[tex] P(x, y) = (0, 7) [/tex]
The coordinates of point P, are (0, 7)
3 (x-3)=6 solve for x
Answer: x = 5
Step-by-step explanation:
3( x - 3 ) = 6
Divide 3 on both sides
x - 3 = 2
Add 3 on both sides
x = 5
At most, Kyle spent $50 in the recording studio recording his new single. Kyle has already
made $12 from purchases made online. If each track costs $1, how many more tracks does
he need to sell to make a profit?
Answer:
Well you can subtract 12 from 50 make sure the larger number Is in front an the smaller number then you would get 38 so he would have to make more than 38 tracks to make a a profit
Given this linear system:
2x - 2y + 6z = 76
4x - y + 10z = 127
-x + 2y - 4z = -50
Which of the following is the augmented matrix for this system?
Answer:a
Step-by-step explanation:
Answer:
A
next one:
D and D
just did the warm-up
An organization wants to know if drinking caffeinated coffee causes hyperactivity in college students. To test their research question, they offered students free coffee to students throughout the term in exchange for participating in the study. Researchers intentionally balanced participating students into groups by the student’s year, major, and gender. One group received regular coffee and the other received decaffeinated coffee. Students obtained their free coffee at will from the research stations and through the day used an app to track how hyperactive they felt.a) What are the independent variables?b) What is the dependent variable?c) What kind of study design is this?d) What kind of sampling method is being used?
Answer:
a) drinking caffeinated coffee
b) hyperactivity
c) experimental study
d) Non-Probability Sampling Method
Explanation:
a) An independent variable refers to the object(s) or variable that is been measured which is not affected or changed by other variables. Rather, the independent variable affects or changes other variables. That is why drinking caffeinated coffee falls under the independent variable.
b) The dependent variable on other hand is a variable that can be affected or changed by the independent variable. That is why hyperactivity falls under the dependent variable.
c) Noteworthy is the fact that in an experimental study a researcher usually alters the level of the independent variable [the caffeinated coffee]. This is evident in this case because we are told, "One group received regular coffee and the other received decaffeinated coffee."
d) The kind of sampling method used is the Non-Probability Sampling Method because they [the students] which formed the population were not randomly selected, but "intentionally balanced" into groups by the student’s year, major, and gender.
Serena leans a 24-foot ladder against a 22.8-foot-tall building to climb on the roof.
Answer:
Sine of the Angle = opposite / hypotenuse
Sine Angle = 22.8 / 24
Sine Angle = .95
Angle = arc sine (.95)
Angle = 71.805 degrees
Angle = 71.8 (rounded)
Step-by-step explanation:
Answer:
71.8
Step-by-step explanation:
Consider the table that includes the input and output
values of a function.
X
2.
3
4
5
6
f(x)
-23
-33
-47
-65
-87
Which answer classifies the function using finite
differences?
The function is quadratic with a constant second
difference of 4
The function is quadratic with a constant second
difference of 4.
The function is cubic with a constant third difference
of -4.
The function is cubic with a constant third difference
of 4.
Answer:
The function is quadratic with a constant second difference of -4.
Step-by-step explanation:
I know this for sure because this is one of the questions I got correct on my quiz.
The Institute of Education Sciences measures the high school dropout rate as the percentage of 16- through 24-year-olds who are not enrolled in school and have not earned a high school credential. Last year, the high school dropout rate was 8.1%. A polling company recently took a survey of 1,000 people between the ages of 16 and 24 and found that 6.5% of them are high school dropouts. The polling company would like to determine whether the dropout rate has decreased. At a 5% significance level, the decision is to ________.
Answer:
Step-by-step explanation:
Given that:
The population proportion = 8.1% = 0.081
Sample size = 1000
The sample proportion [tex]\hat p[/tex] = 6.5% = 0.065
The null and the alternative hypothesis for these studies can be computed as:
[tex]\mathbf{H_o : p = 0.081} \\ \\ \mathbf{H_1 : p \neq 0.081}[/tex]
Since [tex]H_1[/tex] is not equal to the population proportion; then this is a two-tailed test.
The level of significance is given as 5% = 0.05
The standard error [tex]\sigma_p[/tex] of the sample proportion [tex]\hat p[/tex] can be computed as:
[tex]\sigma_p = \sqrt{\dfrac{p(1-p)}{n} }[/tex]
[tex]\sigma_p = \sqrt{\dfrac{0.081(1-0.081)}{1000} }[/tex]
[tex]\sigma_p = \sqrt{\dfrac{0.081(0.919)}{1000} }[/tex]
[tex]\sigma_p = 0.0086[/tex]
The z score test statistic is calculated as:
[tex]z =\dfrac{\hat p - p}{\sigma_p}[/tex]
[tex]z =\dfrac{0.065- 0.081}{0.0086}[/tex]
z = −1.860
For a two-tailed test, the p-value = [tex]2 \times P(Z < -|z|)[/tex]
[tex]p-value = 2 \times P(Z < - 1.86)[/tex]
p-value = 2 × 0.0314
p-value = 0.0628
Rejection Criteria: To reject [tex]H_o[/tex] ; if the p-value is less than the level of significance ∝
The decision rule: We failed to reject the null hypothesis since the p-value is greater than the level of significance ∝.
Thus, there is insufficient evidence to conclude that p is not equal to 0.081
Find the mistake in the problem. tell what is is.
6th grade math
Jack mails 10 packages that each weigh the same amount. If the combined weigh of all 10 package is 67 1/2 pounds, how much does one package weigh? Show your work.
The following data represent the number of grams of fat in breakfast meals offered at a local fast food restaurant. (a) Construct an ordered stem-and-leaf plot and (b) describe the shape of the distribution.
(a) Construct the ordered stem-and-leaf plot below.
0 A vertical line used to separate stems and leaves.
01234
(b) The distribution is _______
skewed right.
bell-shaped.
uniform.
skewed left.
Enter your answer in each of the answer boxes.
Answer:
The following are the answer to this question:
Step-by-step explanation:
In the question some data is missing, which is defined in the attached file please find it.
The table for point a:
plot for the Stem-and-leaf:
0 3 4 5 7 4
1 2 2 4 4 5 7 7 7
2 0 3 4 4 5 8 6
3 3 4 7 9 4
4 1
In point b:
Its distributed skewed is correct because in its points 1 is a tail on its right side.
please find the attached file.
Evaluate the expression 12 + {-4 + 2[1 + 3(-5 – 3)]} .
Answer:
-38
Step-by-step explanation:
4x+1y=12 solve please need help
Answer:
-0.25y
Step-by-step explanation:
Simplifying
4x + 1y = 12
Solving
4x + 1y = 12
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-1y' to each side of the equation.
4x + 1y + -1y = 12 + -1y
Combine like terms: 1y + -1y = 0
4x + 0 = 12 + -1y
4x = 12 + -1y
Divide each side by '4'.
x = 3 + -0.25y
Simplifying
x = 3 + -0.25y
Answer:
x = 3 + -0.25y
Step-by-step explanation: Simplifying:4x + 1y = 12Solving:4x + 1y = 12Solving for variable 'x'.:Move all terms containing x to the left, all other terms to the right.Add '-1y' to each side of the equation.4x + 1y + -1y = 12 + -1yCombine like terms: 1y + -1y = 04x + 0 = 12 + -1y4x = 12 + -1yDivide each side by '4'.x = 3 + -0.25ySimplifyingx = 3 + -0.25yI NEED HELP WITH OPPERATIONS WITH COMPLEX NUMBERS
(PLEASE HELP)
Answer:
see below
Step-by-step explanation:
z1 = sqrt(3) -i
z2 = -i
z1+z2 = sqrt(3) -i + -i = sqrt(3) -2i
z1-z2 = sqrt(3) -i - -i = sqrt(3) +-i +i = sqrt(3)
z1*z2 = sqrt(3) -i * -i = sqrt(3)*-i -i*-i = -sqrt(3)i + i^2 = -sqrt(3)i -1
z1/z2 = sqrt(3) -i / -i = sqrt(3)/-i - i/-i = sqrt(3) *i/-i*i +1 = sqrt(3)i/-i^2 +1
= sqrt(3) i +1
x-(3-2x)-(4-5x)=-7. what is the value of x?
Answer:
x=0
Step-by-step explanation:
expand x-(3-2x)-(4-5x)=-7
x-3+2x-4+5x=-7
8x-7=-7
8x-7+7=0
8x=0
x=0
What is h=v/b? H=__in
Toni ran 45 mile in 15 hour. Write an equation for the distance in miles y that she ran in x hours if she ran at a constant rate.
Answer:
y=4x
this is an equation for the distance in miles y that she ran in x hours is she ran at a constant rate
Write an algebraic expression for the following:
Divide 2w by 3xy
Answer:
Step-by-step explanation:
2w/3xy
this is the answer
