Multiple Choice
Which of the following represents a unit rate?
A. four dollars over twelve books
B. five pages over two minutes
C. eighty beats over one minute
D. seventy two inches over two yards
Answer:
c
Step-by-step explanation:
unit rate is a rate with one in the denominator
PLEASE HELP ASAP!! Will give BRAINLIEST for the first correct answer!
Dr. Hammer noticed that the distribution of scores for his psychology class's last unit test was
not normal. In fact, the class results were positively skewed. According to this, which of the
following would be true?
OPTIONS:
A. The mean, median, mode would all be the same
B. The mean would be higher than the median and mode
C. The mean and median would be the same, but the mode would be higher
D. The mode and median would be higher than the mean
Answer:
E
Step-by-step explanation:
Answer:
B. The mean would be higher than the median and mode
Step-by-step explanation:
A stainless steel patio heater is a square pyramid. The length of one side of the base is 24.4 in. The slant height of the pyramid is 90.4 in. What is the height of the pyramid?
Answer:
89.57in
Step-by-step explanation:
Given the following
Slant height of the pyramid l = 90.4in
Length of one side of the base b =24.4in
Required
Height of the pyramid H
To get the height we will use the Pythagorean theorem as shown
l² = h²+(b/2)²
Substitute the given values
90.4² = h²+(24.4/2)²
90.4² = h²+12.2²
h² = 90.4²-12.2²
h² = 8023.32
h = √8023.32
h = 89.57in
Hence the height of the pyramid is 89.57in
what is {1x+89x(8+29x)}{2x+89x(x+9)}
Answer:
229709x^4+2136000x^3+572539x^2
Step-by-step explanation:
A 12-foot ladder is placed 4 feet away from a house as shown.
A 12 foot ladder is leaning against a house to form angle x. The distance between the house and the bottom of the ladder is 4 feet. The angle between the house and the ground is 90 degrees.
What is the value of x, rounded to the nearest degree?
x ≈
°
According to the manufacturer, if the angle the ladder forms with the ground, x, is between 70° and 75°, then it meets safety standards.
Is this ladder being used safely?
Answer:
#1.
cos(x) = adjacent/hypotenuse = 4/12 ≈ 0.3333 ⇒ x ≈ 71°
#2
71° is between 70° and 75°, so the answer is yes, the ladder being used safely.
Step-by-step explanation:
Answer:
71
yes
Step-by-step explanation:
Just did it, have a good day!
. Evaluate 8^0 helppp please
Answer:
1
Step-by-step explanation:
[tex] {8}^{0} = 1 \\ [/tex]
Any number raised to zero is always equal to one.
expand the polynomial
(x^(2)+xy-y^(2))(x+y)
Answer:
It's already expanded.
Solve for ddd. 6d-\dfrac{11}2=2d-\dfrac{13}26d− 2 11 =2d− 2 13 6, d, minus, start fraction, 11, divided by, 2, end fraction, equals, 2, d, minus, start fraction, 13, divided by, 2, end fraction d=d=
Answer:
[tex]d = -\dfrac{1}{4}[/tex]
Step-by-step explanation:
Given
[tex]6d-\dfrac{11}2=2d-\dfrac{13}{2}[/tex]
Required
Solve for d
[tex]6d-\dfrac{11}2=2d-\dfrac{13}{2}[/tex]
Collect Like Terms
[tex]-2d + 6d=-\dfrac{13}{2}+\dfrac{11}{2}[/tex]
[tex]4d=-\dfrac{13}{2}+\dfrac{11}{2}[/tex]
Take LCM
[tex]4d=\dfrac{-13+11}{2}[/tex]
[tex]4d=\dfrac{-2}{2}[/tex]
[tex]4d = -1[/tex]
Make d the subject
[tex]d = -\dfrac{1}{4}[/tex]
15 POINTS PLEASE HELP!!!
Answer:
D
Step-by-step explanation:
Can someone please help me with this question.
Answer:
Since FAB and GED are congruent they also create the same angle. The angle is shown with the curved line. AE is a straight line, or 180 degree angle. This means that FAB and ABC must create a 180 degree angle... and if FAB is congruent to GED then GED and EDC are also congruent.
Step-by-step explanation:
I hope this made sense, it's kind of messy but I hope it helps.
I need help!!!!!!!!!!!!!!!!!!!!!!!!!!!! :)
Answer:
[tex]\frac{log(x + 2)}{log4}[/tex] is the correct answer
Step-by-step explanation:
The formula for change of base in logarithm is given by,
[tex]logba = \frac{logc a}{logc b}[/tex]
If we take the common base as 'e' , the formula becomes,
[tex]logba = \frac{log a}{log b}[/tex]
Applying this formula,
[tex]log4(x + 2) = \frac{log(x +2)}{log4}[/tex]
∴ As the first option matches with our answer, hence it is the correct answer.
( In the fourth option a bracket is missing, so it is not the correct option)
ummmmmmmmmmmmmmmmmmmmmmmmmm help pls
Answer:
[tex]\displaystyle m=\frac{-5}{2}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point (2, 2)
Point (4, -3)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute [SF]: [tex]\displaystyle m=\frac{-3-2}{4-2}[/tex]Subtract: [tex]\displaystyle m=\frac{-5}{2}[/tex]Can someone help me ?!
Answer:
y<-2x-3
Step-by-step explanation:
Your first step is to find the equation of the line. You can see that the y-intercept is -3, therefore your b is -3. So now your formula looks like this:
y=mx-3
To find m, you substitute in an x value and its corresponding y value. When you do this you will get -2.
Now it looks like this:
y=-2x-3.
Now that you have the equation of the line, you can look at the inequality. Since the line is dotted, that means it is not included in the inequality. That mean it cannot contain an equal to. So the only options we have are < and >. Since the shaded area is to the left, which is the negative side, we can conclude that y<-2x-3 is the correct equation.
HOPE THAT THIS IS HELPFUL!
Write an equation of a line that passes through the point (-2,3) and is perpendicular to
the line x = 4
Answer:
y = 3
Step-by-step explanation:
x = 4 has an undefined slope meaning on a graph the line is vertical. In order to form a line perpendicular to this, we need a line with zero slope (horizontal line). We need to look strictly at the y coordinate to help determine the equation. In this case, we have a y coordinate of 3. Therefore, the equation will be y = 3.
PLEASE HELP ME WITH THIS
RT and UW are parallel lines.
Which angles are alternate exterior angles?
Options:
a) <RSQ and <WVX
b) <RSQ and <TSV
c) <RSQ and <TSQ
d) <RSQ and <UVX
Answer: it is a,
Step-by-step explanation:
Evaluate (1/3)^3 from Brainly
Answer:
1/27
Step-by-step explanation:
(1/3)^3 = (1/3)(1/3)(1/3) = 1/(3x3x3) = 1/27
I hope this helped, and if it did, please mark this as brainliest! Thanks!
Answer:
simplified: 1/27
rewritten: 3^-3
Step-by-step explanation:
You take a taxi for a distance of 4 miles. You paid $6 for the trip Your friend uses the same taxi company to travel 10 miles , and pays 10.50. How much does the taxi company charge per mile, how much is the taxi company’s initial fare? And how much would the company charge for a 15 mile trip?
Answer:
1.12 dollers per mile
basic fee is 1.52 dollars
15 mile thing is 18.32 dollars
Step-by-step explanation:
branilest? PLEASE
Determine how far the vehicle travels in 3 hours.
A motorcycle travels 25 miles every 0.5 hour.
Answer:
Motorcycle travel 150 miles in 3 hours
step by step explanation:
3:0,5=6
25
. 6
___
150
What is the length of arc S shown below?
Enter an exact expression.
Answer:
The length of the arc is 1.6 cm
Step-by-step explanation:
To find the value of the length of the arc, we use the length of arc formula
Mathematically, this is;
theta/360 * 2 * pi * r
where theta is the central angle
In this case pi/4 = 180/4 = 45 degrees
r = 2 cm
So the measure of the length of the arc will be;
L = 45/360 * 2 * 22/7 * 2
= 1/8 * 4 * 22/7
= 22/7 * 1/2 = 11/7 = 1.57 cm which is approximately 1.6 cm
Answer:
π/2
Step-by-step explanation:
Khan
Please help I’ll give brainlist
Answer: v = 12
Step-by-step explanation:
2x+4y=0 y=1/2x-3 solve for x
Answer:
There are 2 equal signs in this equation there is no way to solve it if there are 2 equal signs
Step-by-step explanation:
Answer:
x = 1/3
Step-by-step explanation:
2x + 4y = 0
y = 1/2x - 3
substitution method: 2x + 4(1/2x - 3) = 0
2x + 2x - 4/3 = 0
4x = 4/3
12x = 4
x = 4/12 or 1/3
Could you help me on this, I need to submit soon as well :)
Answer:
6
Step-by-step explanation:
Answer: 9
Step-by-step explanation:
Simplify so it's in slope-intercept form (y=mx+b)
y - 125 = 55(x - 2)
Answer:
y = 55x + 15
Step-by-step explanation:
i think this is it, but it might not be right
Andres is running a race that is 13.1 miles long. He has already run 1.1 miles.
Which equation and solution correctly represent how many miles, m , Andres has left to run?
Please help me I will give you bring me if it’s right
Answer:
Yuor answer is X
Step-by-step explanation:
a b c or d help me plzz
Answer:
D
Step-by-step explanation:
Answer:
The correct answer is D
Step-by-step explanation:
pls put me as brainly
im stuck on this question i need help
The wildflowers began blooming by my house at the beginning of March. The first week there were 88 blooms. After week two, there were 176 flowers in bloom. If the flowers continue to bloom at the same rate each week, how many flowers will there be after 6 weeks?
Answer:528
Step-by-step explanation:
This one is just like the other one but different numbers. if you add 88 and 88 you get 176 so that means 88 blooms each week soooooo if you multiply 88 x 6 you would get 528
Determine whether or not the function is linear or nonlinear.
Answer:
Nonlinear
Step-by-step explanation:
This line is not straight so it's not linear.
Linear is a straight line.
nonlinear is any line that's not straight.
Ace Carlos