Answer:
Elevators, stairs and ramps.Step-by-step explanation:
Elevators are a safer way that using a ladder, or any other option, because it has really good foundations, so you won't fall, and it has a floor which you can stand on safely.
Stairs are also safer than ladders, because you can have more estability on the surface, preventing any falls.
At last, ramps are also safer than ladders, but less safe than elevators or stairs, because they have an inclined surface, so you can slide.
Now, if we analyse these four options, we can say that their difference is about the frictional surface each of them have, and the null slope some of them have. For example, a ladder is dangerous, because you don't enough surface to step on, also, the friction of its surface is lower, that means you can easily fall. But, elevators, stairs and ramps have greater coefficient of friction on their surface, and also, they have a greater surface area.
pls answer brainliest
Answer:
45 × 5 = 225
Step-by-step explanation:
Please give brainiest.
Answer:
5* 45 = 225
Step-by-step explanation:
as you can see in the second one the denominator is 100* 5 = 500
so we also multiply the numerator
Jocelyn sells necklaces for $8 each. It costs her $20 for
materials to make the necklaces. Her net profit is
displayed in the graph to the right, where x represents
the number of necklaces sold, and y represents the net
profit made. Analyze the graph to determine Jocelyn's
net profit after selling 2 necklaces.
We see that the slope intercept is y = 8x - 20. So if we substitute x with 2, because x represents the amount of necklaces sold and we are analyzing her net profit after selling 2 necklaces, that gives us y = 8(2) - 20. Which simplifies to y = -4. So by the time Jocelyn sells 2 necklaces, her net profit will be at -4.
Answer:
-$4.00
Step-by-step explanation:
no explanation
Graph y = cos (12/π x)+6 in the interactive widget?
Answer:
Step-by-step explanation:
-4 - 5 / -4 -10 Plz show your work
Answer:
[tex]9/14[/tex]
Step-by-step explanation:
[tex]-4 - 5 / -4 -10[/tex]
[tex]-9 / -14[/tex]
[tex]9/14[/tex]
Answer:
[tex] = \frac{9}{14} [/tex]
Step-by-step explanation:
[tex] \frac{ - 4 - 5}{ - 4 - 10} \\ \frac{ - 9}{ - 14} \\ = \frac{9}{14} [/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
What is an x intercept of x^2-64
Answer:
(8,0) ( -8,0) are the x intercepts
Step-by-step explanation:
Factor
x^2 - 64
This is the difference of squares
(x-8) (x+8)
Set equal to zero to find the intercepts
x-8 = 0 x+8 =0
x= 8 x= -8
Answer: (8,0) and (-8,0)
Step-by-step explanation: It is one positive and one negative 8 because a double positive would be a +64 and a double negative would also be a +64(unless there was another x for example x^2+2x-64.
x^2-64
(x+8) (x-8)
(x+8) (x-8)=0
x+8=0 and x-8=0
(-8,0) and (8,0)
From the hay loft door, Ted sees his dog on the ground. The angle of depression of the dog is 40º. Ted's eye level is 16 feet above the ground. How many feet must the dog walk to reach the open barn door directly below Ted (to the nearest foot)?
Answer: 19 feet
Step-by-step explanation:
Hi, since the situation forms a right triangle (see attachment) we have to apply the next trigonometric function.
Tan α = opposite side / adjacent side
Where α is the angle of depression of the dog, the opposite side (16) is Ted's eye level above the ground, and the adjacent side (x) is the distance between the dog and the barn door.
Replacing with the values given:
tan40 = 16/x
Solving for x
x =16/tan40
x= 19 ft
Feel free to ask for more if needed or if you did not understand something.
Simplify the following expression: -3x(x-4).
Answer:
The answer is -3x² + 12x.
Step-by-step explanation:
You have to apply Distributive Law,
[tex]a(m + n) = am + an[/tex]
So for this question :
[tex] - 3x(x - 4)[/tex]
[tex] = - 3x(x) - 3x( - 4)[/tex]
[tex] = - 3 {x}^{2} + 12x[/tex]
Answer:
[tex] = - 3 {x}^{2} + 12x \\ [/tex]
Step-by-step explanation:
[tex] - 3x(x - 4) \\ - 3x(x) - 3x ( - 4) \\ = - 3 {x}^{2} + 12x[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
Martha borrowed $4,508. She will pay the money back along with 3.5% interest. After a year, she has only paid back 75% of the loan. How much money has she paid so far? PLZ ANSWER ASAP
The mapping shows a relationship between input and output values.
A mapping diagram shows a relation, using arrows, between input and output for the following ordered pairs: (negative 5, 0), (2, negative 3), (negative 1, negative 3), (4, negative 2), (4, 2), (6, negative 1).
Which ordered pair could be removed to make this relation a function?
(–5, 0)
(–1, –3)
(4, –2)
(6, –1)
Answer:
(4, –2)
Step-by-step explanation:
A function has associated only one output for each input. In the ordered pairs, we can see that for the input 4 there are two associated outputs, which are -2 and 2. Then, to make the relation a function, one of them must be removed.
Answer:
(4,-2)
Step-by-step explanation:
Round 3504 to 3 significant figures
Question 4 on my algebra work: Solve the equation. (full work shown appreciated please, it's been a while since I've done a problem like this) [tex]\frac{6+n}{4} = 4[/tex]
Answer:
Option D
Step-by-step explanation:
Take a look at the steps below;
[tex]( 6 + n ) / 4 = 4,\\6 + n = 16,\\n = 10\\\\Conclusion; Solution Is 10[/tex]
To derive the second step we multiplied either side by 4, and as the 4 and 4 cancel each other out on one side of the equation, the other side being 4 * 4 = 16, we receive 6 + n = 16. The third step was found through the subtraction of 6 on either side of the equal sign. 16 - 6 = 10, so your solution is Option D
Alex has 70% of her weekly paycheck automatically deposited into a savings account. this week $35. Alex wants to know the total amount of her paycheck this week.
Answer: The total amount of her paycheck this week is $50
Step-by-step explanation:
Hi, the full question is :
Alex is 70% of her weekly paycheck automatically deposited into a savings account. This week $35 is deposited. Alex wants to know the total amount of your paycheck this week.
So, to answer this question we have to write an equation and solve for x (total amount of the paycheck).
Since 70% of her weekly paycheck is automatically deposited into a savings account. and this week $35 is deposited, we have to multiply the total amount of the paycheck (x) by the percentage deposited in decimal form (70/100), that expression must be equal to the amount deposited (35)
x (70/100) = 35
Solving for x:
x (0.7) =35
x = 35/0.7
x = $50
Answer:
Step-by-step explAlex is 70% of her weekly paycheck automatically deposited into a savings account. This week $35 is deposited. Alex wants to know the total amount of your paycheck this week.
So, to answer this question we have to write an equation and solve for x (total amount of the paycheck).
Since 70% of her weekly paycheck is automatically deposited into a savings account. and this week $35 is deposited, we have to multiply the total amount of the paycheck (x) by the percentage deposited in decimal form (70/100), that expression must be equal to the amount deposited (35)
x (70/100) = 35
Solving for x:
x (0.7) =35
x = 35/0.7
x = $50
anation:
You put $200 in a savings account. The account earns 2% simple interest per year. What is the interest earned after 5 years?
Answer:
20
Step-by-step explanation:
2% / 100 = .02
200x.02x5=20
Please see the image provided.....
Answer:
the answer is 4
Step-by-step explanation:
3+7q=7+6q
7q-6q=7-3
q=4
Suppose that the weight, X, in pounds, of a 40-year-old man is a normal random variable with mean 147 and standard deviation 16. Calculate P(120≤X≤153).
Answer:
0.6004
Step-by-step explanation:
[tex]1 + 1[/tex]
1+2
Answer:
2 and 3.
Step-by-step explanation:
1 + 1
Factor out.
2(1)
Multiply.
= 2
1 + 2
Add the terms.
= 3
the table shows the number of number people in a spinning class each day last week
what is the mean number of people in a class?
Answer:
How to find mean?
mean of a data can be found by adding all the observations and then dividing it by the number of observations. If you do not post also, you may use this formula to find the mean.
Answer:
Post a table and i can give you a real answer
Step-by-step explanation:
Mean is the average, to find average you add up all the numbers and divide the sum by how many numbers there are
I hope this helps u!
Pls pls PLS give brainliest and a thx ;)
a CD player regularly sells for $80. It is on sale for 20% off. What is the sale price of the CD player?
-_______________________________
Hey,
Solution,
Marked price(MP)= $ 80
Discount percent= 20%
Now,
Discount amount=discount percent of MP
= 20% of 80
=20/100*80
= $ 16
Again,
Selling price(SP)=MP - Discount amount
=$80 -$16
=$64
So,the sale price of the CD player is $ 64.
Hope it helps...
Good luck on your assignment....
Stay safe...
_______________________________
Find the volume of the following figure.
10 mi3
24 mi3
22 mi3
18 mi3
PLS HELP 16 POINTS AND A BRAINLIEST
Watch the video clip of Tillman the English bulldog, the Guinness World Record holder for Fastest Dog on a Skateboard.
1. At the conclusion of the video, your classmate takes out his or her calculator and says, “Wow that was amazing!
That means the dog went about 5 meters in 1 second!” Is your classmate correct, and how do you know?
After seeing this video, another dog owner trained his dog, Lightning, to try to break Tillman’s skateboarding record.
Lightning’s fastest recorded time was on a 75-meter stretch where it took him 15.5 seconds. Based on these data,
did Lightning break Tillman’s record for fastest dog on a skateboard? Explain how you know.
Answer:
no, the first dog is faster
Step-by-step explanation:
the first dog went 5m in 1 second that means he can go 75m in 15 seconds. the other dog went 75m in 15.5 seconds.
What is the measure of the arc represented by the numbers 7 and 4 on a clock face? *PLS ANSWER*
Answer:
90°
Step-by-step explanation:
The clock face is a circle and represents 360°
There are 12 divisions 1- 2- 3- 4 - 5 - 6 - 7 - 8 - 9 - 10- 11 - 12 on the face
Each division = 360° ÷ 12 = 30°
There are 3 divisions between 4 and 7 , thus
arc measure = 3 × 30° = 90°
Answer:
90°
Step-by-step explanation:
Can anyone help me with this?
Ten less than five times a number is less than six times the number decreased by eight
Answer:
5n-10 < 6n-8
n - is the variable that's stands for the unspecified number
step 1. ten is less than 5 times a number
step 2. LESS THAN SIGN :)
step 3. six times the number decreased by 8
......................
oh and if you're looking to simplify that problem I believe it would be worked out like this....5n-10<6n-8....subtract 5 from both sides....-10
Consider the quadratic function shown in the table below. Which exponential function grows at a faster rate than the quadratic function for
Answer:
the exponential function is g(x)
Step-by-step explanation:
because quadratic function is f(x)
Add.
4x^2 - 6x +3
2x^2+7x-8
Answer:
6x^2 + 2x - 5 (Option C)
Step-by-step explanation:
1. First, add 4x^2 and 2x^2 together (which is 6x^2). You can figure this out by adding 4 and 2.
2. Second, add -5x and 7x (which is 2x)
3. Lastly, subtract 3 and 8, which is -5
WHY DOES THE ANSWER HAVE A NEGATIVE 5?
The equation looks like this: +3 + -8
You are adding 3 to -8, which is the same as subtracting positive 3 and positive 8 (positive times a negative is a negative or a minus sign)
Answer:
C. 6x^2 + 2x - 5
Step-by-step explanation:
4x^2 + 2x^2 = 6x^2
-5x + 7x = 2x
3 - 8 = -5
Therefore,
4x^2-5x+3 + 2x^2+7x-8 = 6x^2+2x-5
Please help me :) once again
Answer:
About 11.31 cm
Step-by-step explanation:
If one of the legs of a right iscosceles triangle is 8, then the length of the other one must also be 8. Therefore, by the Pythagorean Theorem:
[tex]h=\sqrt{8^2+8^2}=\sqrt{64+64}=\sqrt{128}\approx11.31[/tex]
Hope this helps!
Solution,
Hypotenuse=?
Perpendicular=8 cm
Base=8cm
Now,
Using Pythagoras theorem,
h^2=p^2+b^2
or,h^2=(8)^2+(8)^2
or,h^2=64+64
or,h^2=128
or,h=√128
or,h=8√2
h=11.31 cm
hope it helps
Good luck on your assignment
Which point lies on the line with point-slope equation y- 2 = 5(x - 6)?
A. (-6, -2)
B. (6,2)
C. (-6, 2)
D. (6,-2)
What is the quadratic regression equation that fits these data?
A. y = -2.04x2 +1.46x + 13.92
B. y= -0.70x2 +2.37x + 11.96
c. y = 14.77(0.89)
D. y = -1.04x2+3.04x + 9.68
Answer:
B)[tex]-0.70x^2+2.37x+11.96[/tex]
Step-by-step explanation:
No. of second Height
0 12
1 13
2 15
3 13
4 9
5 7
Quadratic Regression Equation: [tex]y = a + b x + c x^2[/tex]
[tex]c = \frac{ [ \sum x^2 y * \sum xx ] - [\sum xy \cdot \sum xx^2 ] } { [ \sum xx \cdot \sum x^2 x^2] - [\sum xx^2 ]^2 }[/tex]
[tex]b =\frac{ [ \sum xy \cdot \sum x^2 x^2 ] - [\sum x^2y \cdot \sum xx^2 ] } { [ \sum xx \cdot \sum x^2 x^2] - [\sum xx^2 ]^2 }[/tex]
[tex]a = [ \sum y / n ] - { b \cdot [ \sum x / n ] } - { a \cdot [ \sum x^2 / n ] }[/tex]
Where ,
[tex]\sum x x = [ \sum x^2 ] - [ ( \sum x )^2 / n ]\\\\\sum x y = [ \sum x y ] - [ ( \sum x \cdot \sum y ) / n ]\\\\\sum x x^2 = [ \sum x^3 ] - [ ( \sum x^ 2 \cdot \sum x ) / n ]\\\\\sum x^2 y = [ \sum x^2 y] - [ ( \sum x^2 \cdot \sum y ) / n ]\\\\\sum x^2 x^2 = [ \sum x^4 ] - [ ( \sum x^2 )^2 / n ][/tex]
Using these formulas the required equation is :[tex]-0.696 X^2 +2.368 X +11.964[/tex]
So, option B is true
B)[tex]-0.70x^2+2.37x+11.96[/tex]
Which choice is equivalent to the quotient below?
Answer: D
Step-by-step explanation:
Mark me brainiiest.✌✌
Which equation represents the graphed function?
Answer:
y = 1/4x -2
Step-by-step explanation:
Use the diagram to answer the question.
Line f is on Plane R.
True
False
Answer:
True
Step-by-step explanation:
If you look at line G it is clearly extending off of plane M while line f doesn't seem to be extending off of plane R.
