Can u guys pls help me on this question and pls explain how u got the answer
Answer:
Surface area : 143.1
Step-by-step explanation:
Ok so first,
Bottom : 35.1 ft
Front : 36
Right side : 36
Left side : 36
is (24, 7, 25) a Pythagorean triple?
is (24, 7, 25) a Pythagorean triple?
Step-by-step explanation:
No
I'm 3 times younger than my mom but 3 times older than my younger brother. Mom is older than my younger brother by 40 years. how old am I?
Given:
I'm 3 times younger than my mom but 3 times older than my younger brother.
Mom is older than my younger brother by 40 years.
To find:
How old am I.
Solution:
Let x be the age of the younger brother.
I'm 3 times older than my younger brother. So, my age is 3x.
I'm 3 times younger than my mom. So, she is 3 times older than me and her are is 3(3x)=9x.
The difference between the age mother and younger brother is 40 years.
[tex]9x-x=40[/tex]
[tex]8x=40[/tex]
Divide both sides by 8.
[tex]x=\dfrac{40}{8}[/tex]
[tex]x=5[/tex]
Now,
My age [tex]=3x[/tex]
[tex]=3(5)[/tex]
[tex]=15[/tex]
Therefore, I'm 15 years old.
a triangle has angles that measure 85 degrees and 37 degrees what is the measure of the third angle
Answer:
58
Step-by-step explanation:
Answer:
58 degrees
Step-by-step explanation:
180-85-37 = 58
what is the equation of the graph in slope-intercept form?
Let C(x) represent the cost of producing x items and p(x) be the sale price per item if x items are sold. The profit P(x) of selling x items is P(x)=x p(x)-C(x) (revenue minus costs). The average profit per item when x items are sold is P(x)/x and the marginal profit is dP/dx. The marginal profit approximates the profit obtained by selling one more item given that x items have already been sold. Consider the following cost functions C and price functions p. Complete partsâ (a) throughâ (d) below.
a. Find the profit function P.
b. Find the average profit function and marginal profit function.
c. Find the average profit and marginal profit if x=a units are sold.
d. Interpret the meaning of the values obtained in part (c).
C(x)=â0.02x^2 +50x+100, p(x)=100, a=500
Answer:
[tex](a)[/tex] [tex]P(x) = 0.02x^2 +50x - 100[/tex]
[tex](b)[/tex] [tex]Average = 0.02x + 50 - \frac{100}{x}[/tex] and [tex]Marginal = 0.04x + 50[/tex]
[tex](c)[/tex] [tex]Average = 59.8[/tex] and [tex]Marginal = 70[/tex]
(d) See Explanation
Step-by-step explanation:
Given
[tex]p(x) = 100[/tex]
[tex]C(x) = -0.02x^2 +50x +100[/tex]
Solving (a) Profit function; P(x)
[tex]P(x) = xp(x) - C(x)[/tex]
This gives:
[tex]P(x) = x*100 - (-0.02x^2 + 50x + 100)[/tex]
[tex]P(x) = 100x + 0.02x^2 - 50x - 100[/tex]
Collect like terms
[tex]P(x) = 0.02x^2 - 50x +100x - 100[/tex]
[tex]P(x) = 0.02x^2 +50x - 100[/tex]
Solving (b): Average profit function and Marginal profit function
[tex]Average = \frac{P(x)}{x}[/tex]
This gives:
[tex]Average = \frac{0.02x^2 + 50x - 100}{x}[/tex]
Break down the fraction
[tex]Average = \frac{0.02x^2}{x} + \frac{50x}{x} - \frac{100}{x}[/tex]
[tex]Average = 0.02x + 50 - \frac{100}{x}[/tex]
[tex]Marginal = \frac{dP}{dx}[/tex]
[tex]P(x) = 0.02x^2 +50x - 100[/tex]
Differentiate
[tex]\frac{dP}{dx} = 2 * 0.02x + 50 - 0[/tex]
[tex]\frac{dP}{dx} = 0.04x + 50[/tex]
Hence:
[tex]Marginal = 0.04x + 50[/tex]
Solving (c): Average profit and Marginal profit if x = a
[tex]a = 500[/tex]
So:
[tex]x =500[/tex]
Substitute 500 for x
[tex]Average = 0.02x + 50 - \frac{100}{x}[/tex]
[tex]Average = 0.02 * 500 + 50 - \frac{100}{500}[/tex]
[tex]Average = 59.8[/tex]
[tex]Marginal = 0.04x + 50[/tex]
[tex]Marginal = 0.04*500 + 50[/tex]
[tex]Marginal = 70[/tex]
Solving (d): Interpret the values in (c)
[tex]Average = 59.8[/tex]
They make a profit of 59.8 for the first 500 items
[tex]Marginal = 70[/tex]
From the 501st item, the profit is 70
10. In how many ways can a student select 7 out of 10 questions to work on an exam
Answer:
Step-by-step explanation:
7C10 = 10!/(7!)(10-7)!
7C10 = 10!/(7!)(3!)
7C10 = (10 x 9 x 8 x 7)/(7 x 6 x 5)(6)
7C10 = (10 x 9 x 8)/6
7C10 = 720/6
7C10 = 120
Answer: 120 ways
It is possible for a system of linear equations to have exactly 2 solutions.
Answer:
Number of Solutions
Most linear systems you will encounter will have exactly one solution. However, it is possible that there are no solutions, or infinitely many. (It is not possible that there are exactly two solutions.) The word unique in this context means there is a solution, and it's the only one.
Step-by-step explanation:
Hope it helps!
Joy made a scale drawing of a tower using a scale of 1 foot = 218 millimeters. If the actual height of the tower is 56 feet, then what is the tower's height in Joy's drawing?
Answer:
its 119
Step-by-step explanation:
Add the following complex numbers:
(6 - 21) + (11 +61)
Answer:
ugh I think its red
Step-by-step explanation:
I'm kidding its 57
2.8 - 5.4n - 4n + 5 Simplify This expression. Please?
Answer:
Step-by-step explanation:
-9.4n + 7.8
Answer:
-9.4n + 7.8
Step-by-step explanation:
2.8 - 5.4n - 4n + 52.8 - 9.4n + 5-9.4n + 7.8between t=10 and t=60 the acceleration is 0.4 calculate the speed when t=60
Answer:
i dont understand
Step-by-step explanation:
Does 3/10 x 1/2 = 3/20 ?
Answer:
Yes
Step-by-step explanation:
yes, yes it does
In a survey at a local university, 38% of students say that they get less than the recommended eight hours of sleep per night in a group of 4500 students, how many would you expect get eight or more hours of sleep per night?
Answer:
2790
Step-by-step explanation:
38/100 * 4500 = 1710 get less than eight hours of sleep
4500 - 1710 = 2790 students
Which figure shows a reflection of pre-image QRS over the line t?
1
2
or 3
Answer:
1
Step-by-step explanation:
Quinn is trying to drink more water, so he has been keeping a log of how much water he
drinks. Quinn drank 30 ounces of water two days ago. Yesterday, he drank 20% less. How
much water did he drink yesterday?
80
3.
# 765 = 945
Arrow way
Find the missing side or angle.
Round to the nearest tenth.
A=98°
b=11
c=19
a=[?]
Answer:
your answer will be a= 23.2
Step-by-step explanation:
hope this helps u have a great day ^_^
Answer:
A= 23.2
Step-by-step explanation:
[tex]a^2=b^2+c^2-2bc CosA[/tex]
[tex]a^2=11^2+19^2-2(11)(19)Cos 98[/tex]
[tex]a^2=121+361-418cos98[/tex]
[tex]a^2=121+361-(-58.17)[/tex]
[tex]\sqrt{a^2} =\sqrt{540.17}[/tex]
[tex]a=23.2[/tex]
[tex]-----------[/tex]
hope it helps..
have a great day!!
determine the value of x if the sequence 2x-1; 3x+1; 7x-1; is a geometric sequence
Answer:
x=0 or x=3
Step-by-step explanation:
Since it is a geometric sequence, that means term divided by previous term is the same number. Let's call that number, r.
That means we have:
(3x+1)/(2x-1)=r
(7x-1)/(3x+1)=r
Since both of the ratios are the same, then we have
(3x+1)/(2x-1)=(7x-1)/(3x+1)
Cross multiply:
(3x+1)(3x+1)=(2x-1)(7x-1)
Distribute:
9x^2+3x+3x+1=14x^2-2x-7x+1
Combine like terms:
9x^2+6x+1=14x^2-9x+1
Subtract 1 on both sides:
9x^2+6x=14x^2-9x
Subtract 14x^2 on both sides
Add 9x on both sides
-5x^2+15x=0
Factor -5x:
-5x(x-3)=0
-5x=0 when x=0 since -5(0)=0
x-3=0 when x=3 since 3-3=0
is 3/4 equivalent to 27/36
Answer:
yes , 27/36=3*9/4*9=3/4 both the number 27 and 36 can be multiplied by 9 and can be reduced to its lowest form i.e.
I NEED HELP PLS I FORGOT HOW TO DO THIS HELP
Answer:
Step-by-step explanation:
how many shapes of size A are in B ?
I counted 9.5
then just multiply the count * the size of A
got it?
Step-by-step explanation:
area of shape A = 3cm²
number of A shape in shape B = 9 and half
1 shape A = 3cm²
9 shape A = 3×9 = 27cm²
1 half shape A = 3 ÷ 2 = 1.5cm²
area of shape B = 27cm² + 1.5cm² = 28.5cm²
_____________________Follow meDetermine which statement or statements are true. texts sent = 8 ; calls made = 5 For every 5 texts sent there were 8 calls made The ratio of texts sent to calls made was 8:5 For every 5 calls made there were 8 texts sent The ratio of texts sent to calls made was 5:8
Answer:
The ratio of texts sent to calls made was 8:5
For every 5 calls made there were 8 texts sent
Answer:
For every 8 calls made there were 2 texts sent.
And
For every 2 texts sent there were 8 calls made.
In one city, the ratio of households with pets to
households without pets is 30 to 29. If 20,735 households
do not have pets, how many households have pets?
A 21.450
B 42,185
C 40,779
D 20.044
Answer:
40,779
Step-by-step explanation:
i took the k12 test
how do i do slope-intercepts
Answer:
To graph a linear equation in slope-intercept form, we can use the information given by that form. For example, y=2x+3 tells us that the slope of the line is 2 and the y-intercept is at (0,3). This gives us one point the line goes through, and the direction we should continue from that point to draw the entire line.
Step-by-step explanation:
Mai’s pencil is 24 cm long. She sharpens it, and it loses 1/8 of its length. How long is her pencil now?
Answer:
It is 21 cm long
Step-by-step explanation:
1/8 of 24 is 3, so you would subtract 3 from 24. 3*8=24.
x^2 y^2/a^2 - 16/a^2b^2
Answer:
do by yourself don't know anything
Step-by-step explanation:
HELP!!!!! Help plz thx
What is the value of x in the equation –2.4x = 8.4? –20.16 –3.5 3.5 20.16
Answer: it’s 3.5
Step-by-step explanation:
Kieran buys a car for $8000
The following year he sells the car for $7500
Find the percentage loss.
Answer:
6.25% I think
Step-by-step explanation:
If Kiara sells car at $7500 and it is of $8000 then she is having a loss of 6.25%.
What is percentage?A percentage is the number or ratio which is expressed as a fraction of 100.
How to calculate percentage?We have been given the buying value=$8000
Selling value=$7500
Loss=Buying value- selling value
=8000-7500
=$500
Percentage of loss=loss/ buying value*100
=500/8000*100
=6.25%
If we want to check our answer then we can multiply our percentage with the buying value.
=8000*6.25%
=500
Hence if Kiara sells car at $7500 and it is of $8000 then she is having a loss of 6.25%.
Learn more about percentage at https://brainly.com/question/24304697
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Share 40 in the ratio 1:3:6
Answer:
total ratio= 1+3+6=10
first share= 1/10×40=4
second share=3/10×40=12
third share=6/10×40=24