Answer:
24.64
Method:
You get 10% of the shirt cost, and it on to the 22.40
A point estimate is defined as:
a. a single value that is the best estimate of the upper range of a population parameter
b. a single value that is the best estimate of an unknown sample statistic
c. the average of the sample values
d. the average of the population values
e. a single value that is the best estimate of an unknown population parameter
pls describe:)
E
Step-by-step explanation:
cause it the best estimate of a value of an unknown parameter and E describes it best
Round 23,839 to the nearest thousand
Answer:
24, 000[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]
Answer:
24000
Step-by-step explanation:
instead of 20000 you've got to round the no before it then you'll know your answer as 24000
Please help! I'm stuck on this big ideas math problem and I can't figure it out. Need to learn this and solve ASAP! :)
Answer:
a) greater than 20
b) 20 is the estimate (round all the three other numbers and add, then subtract from 80 because 20, the average, times the four meetings is 80)
c) You can check your estimate by adding all of the numbers and subtracting the answer by 80. 18 + 17 + 21 = 56. 80 - 56 = 24
24 is closer to 20 than 30, so our estimate is correct.
Step-by-step explanation:
Do the following graphs represent a mathematical function? If not, explain why.
Answer:
1 = YES
2 = NO
3/8 of a scholarship fund was 1500 find the full amount of the scholarship fund
Answer:
The full scholarship fund will be 4000
Step-by-step explanation:
When doing these types of problems I like to do this.
1500 ÷ 3 = 500 (We do this because you want to find out what 1/8 is)
Since 500 is 1/8 of the part, all you have to do is multiply 500 by 8
500 × 8 = 4000
Can someone please help me?
a) Since division by zero is undefined, we have that
[tex]13-x\neq0\Leftrightarrow x\neq13[/tex]
In interval notation
[tex]D=( -\infty ,13) \cup ( 13,\infty )[/tex]
b) Since a square root of a negative number is undefined over the Reals, we have that
[tex]9+x\geqslant 0\Leftrightarrow x\geqslant -9[/tex]
In interval notation
[tex]D=[-9,\infty )[/tex]
c)Since division by zero is undefined, we have that
[tex]2x+1\neq 0\Leftrightarrow 2x\neq -1\Leftrightarrow x\neq -\frac{1}{2}[/tex]
In interval notation
[tex]D=\left( -\infty ,-\frac{1}{2}\right) \cup \left( -\frac{1}{2} ,\infty \right)[/tex]
d) Since a square root of a negative number is undefined over the Reals, we have that
[tex]4x-3\geqslant 0\Leftrightarrow 4x\geqslant 3\Leftrightarrow x\geqslant \frac{3}{4}[/tex]
In interval notation
[tex]D=\left[\frac{3}{4} ,\infty \right)[/tex]
Find the common ratio for the following sequence.
1/2, -1/4, 1/8, -1/16
1. -2
2. 1/2
3. 2
4. -1/2
Answer:
-1/2
Step-by-step explanation:
(-1/4)/(1/2)=-1/2
Which of the following would be the slope of the line parallel to the following:
3x+4y=8
a. 4/3
b. 3/4
c. -4/3
d. -3/4
Answer:
-3/4
Step-by-step explanation:
slope of given line:
4y=-3x+8
y=-3/4 *x+8
m=-3/4
parallel lines have equal slopes so required slope is -3/4
Write 0.2 repeating as a fraction in simplest form.
0.2 Repeating Decimal is 2/9 as a Fraction
Answer:
2.9
Step-by-step explanation:
We let 0.2 be x.
Since x is recurring in 1 decimal places, we multiply it by 10.
10x = 2.2
Next, we subtract them.
10x - x = 2.2 - 0.2
9x = 2
Lastly, we divide both sides by 9 to get x as a fraction.
Answer: x = 2.9 or 2/9.
what are the solution set of Z^2 +(2i-3)Z+5i=0
Answer:
z= 2 - 3i
1 + i
Step-by-step explanation:
I'm not sure but hope it helps.
pls help with this problem
====================================================
Explanation:
Refer to the diagram below. The rectangle MATH has the diagonal MT that cuts the rectangle into two identical right triangles.
We then use the pythagorean theorem to find the length of the hypotenuse MT.
a^2 + b^2 = c^2
10^2 + 24^2 = c^2
100 + 576 = c^2
676 = c^2
c^2 = 676
c = sqrt(676)
c = 26
Segment MT is 26 cm long.
This applies to the other diagonal AH as well.
State the domain and range of the following function.
{(1, 3), (2,7), (- 3,4), (- 2, 3), (5,4)}
Answer:
okay
Step-by-step explanation:
Tom owns a landscaping business. He charges $40 for a yard cleanup, $50 to mow a lawn, and $75 to mulch a yard. On average, it takes Tom 25 minutes for a yard cleanup, 40 minutes to mow a lawn, and 2 hours to mulch a yard. Tom's clients are Mr. Hansen, Ms. Martinez, and Mrs. Johnson. . Mr. Hansen paid $125 for lawn services this week. . Tom spent more than an hour at Ms. Martinez' house this week. • Mrs. Johnson wrote Tom a check for $165 for the week. Tom made $405 from his three clients this week.
Answer:
Ms. Martinez = Tom received $115, $75 to mulch the yard and $40 for a yard cleanup.
Step-by-step explanation:
Tom made $405 for the week from his three clients
Mr. Hansen paid Tom $125
Mrs. Johnson paid Tom $165
405-165-125=115
Ms. Martinez paid Tom $115, which meant that he would have cleaned the yard ($40) and mulch the yard ($75)
The unit amount and time for each service offered by Tom can be represented as equations. The conclusion from the given parameters are:
Mr. Hansen paid $125 to mow a lawn and to mulch a yard.Mrs. Johnson paid $165 for the three servicesMs. Martinez paid $115 for a yard cleanup and to mulch a yard.Given that:
Cost
[tex]\$40 \to[/tex] Yard cleanup
[tex]\$50 \to[/tex] Mowing a lawn
[tex]\$75 \to[/tex] Mulching a yard
Time
[tex]2\ hrs \to[/tex] Yard cleanup
[tex]40\ mins \to[/tex] Mow a lawn
[tex]2\ hrs \to[/tex] Mulching a yard
[tex]Total\ Earnings = \$405[/tex]
From the question, we understand that:
[tex]Mr.\ Hansen = \$125[/tex]
Recall that:
[tex]\$50 \to[/tex] Mowing a lawn
[tex]\$75 \to[/tex] Mulching a yard
Add up:
[tex]\$50 + \$75 = 125[/tex]
This means that Mr. Hansen paid $125 to mow a lawn and to mulch a yard.
[tex]Mrs.\ Johnson= \$165[/tex]
Recall that:
[tex]\$40 \to[/tex] Yard cleanup
[tex]\$50 \to[/tex] Mowing a lawn
[tex]\$75 \to[/tex] Mulching a yard
Add up:
[tex]\$40 + \$50 + \$75 =\$165[/tex]
This means that Mrs. Johnson paid $165 for the three services
The amount paid by Ms. Martinez is calculated as follows:
[tex]Mr.\ Hansen + Mrs.\ Johnson + Ms.\ Martinez = Total\ Earnings[/tex]
Substitute known values
[tex]\$125 + \$165 + Ms.\ Martinez = \$405[/tex]
[tex]\$290 + Ms.\ Martinez = \$405[/tex]
Collect like terms
[tex]Ms.\ Martinez = \$405 - \$290[/tex]
[tex]Ms.\ Martinez = \$115[/tex]
This means that Ms. Martinez paid $115
Recall that:
[tex]\$40 \to[/tex] Yard cleanup
[tex]\$75 \to[/tex] Mulching a yard
Add up
[tex]\$40 +\$75 = \$115[/tex]
This means that Ms. Martinez paid $115 for a yard cleanup and to mulch a yard.
Read more about equations at:
https://brainly.com/question/2263981
What is the product?
Answer:
product is the result of multiplication or an expression that identifies factors to be multiplied..
The product of the given expression (7x²)(2x³ + 5)(x² - 4x - 9) is,
[tex]14x^{7} - 56 x^6 - 126 x^5 + 35x^{4} - 140x^{3} - 315 x^2[/tex]
The product between expressions can be defined as the outcome or result obtained by multiplying two or more numbers, terms, or quantities together. It represents the combined value or the total when multiple factors are multiplied.
The given expression is,
(7x²)(2x³ + 5)(x² - 4x - 9)
Multiplying the first two expressions,
[tex](7 \times 2 x^{2+3} + 7\times 5x^2)(x^2 -4x -9)\\(14 x^5 + 35 x^2)(x^2 -4x -9)\\[/tex]
Now again multiplying these two expressions
[tex]14x^{5+2} - 4 \times 14 x^5 - 14 \times 9 x^5 + 35x^{2+2} - 35 \times 4x^{2+1} - 35 \times 9 x^2[/tex]
Simplifying this we get,
[tex]14x^{7} - 56 x^6 - 126 x^5 + 35x^{4} - 140x^{3} - 315 x^2[/tex]
Hence,
The product of the given expression is,
[tex]14x^{7} - 56 x^6 - 126 x^5 + 35x^{4} - 140x^{3} - 315 x^2[/tex] .
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ4
Find two given numbers in a given ratio such that the sum of their squares is to their difference in a given ratio. Ratios being 3 : 1 and 10 : 1.
Answer: a=6 and b=2
Step-by-step explanation:
Let say A and b the 2 numbers.
[tex]\dfrac{a}{b} =\dfrac{3}{1} \Longrightarrow\ a=3b\\\\\dfrac{a^2+b^2}{a-b} =\dfrac{10}{1} \Longrightarrow\ (3b)^2+b^2=10*(3b-b)\\\\\Longrightarrow\ 10*b^2=10*2b\\\\\Longrightarrow\ b=2\\\\\Longrightarrow\ a=6\\\\[/tex]
Find the measure on z.
Answer:
z° = 135°
Step-by-step explanation:
The measure of the interior angle is 135°. The sum of the measures of its interior angles is 1080°.
I hope I helped you^_^
please help me this is for tomorrow and i have to sleep
Answer:
The answer is C
Step-by-step explanation:
The line graph shows the line going right so it greater than or >. The circle is not colored in so there is no line under the greater than sign > so answer is C
Which equation should be used to answer “24 is 40% of what number?”
Answer:
24=40/100×x
Step-by-step explanation:
i think the equation is
24=40/100×x
24 is equal to 40 percent of a number which I have represented by x
I hope this helps
Anyone help me to solve this probability question in details. I have problems with probabilities. I will be giving the brainliest
Answer:
Step-by-step explanation:
The probability of breakdown
Concrete mixer is 1/4, dumper 1/6, and hoist 1/8.
1. All machines breakdown.
1/4 +1/6 + 1/8 = 13/24
2. 2 machines break down
CM and D 1/4 + 1/6 = 5/12
CM and H 3/8
D and H 7/24
Select all the equivalent ratios of 8:12... 7:21 20:30 5:15 2:3 16:24 and 1:3
8:12 is 2/3 and so is 16:24, 2:3, and 20:30
Step-by-step explanation:
For example (includes simplified problem solving),
8 ÷ 4 = 2
12 ÷ 4 =3
You would want to divide the numerator and denominator by the greatest common factor (GCF)
The ratio 8:12 can be reduced to its lowest terms by dividing both terms by the GCF
Therefore 8:12 is 2:3
The measure of L in triangle LMN is 40°. The measure of M is 78°. What is the measure of N?
Answer: 62°
Step-by-step explanation:
Total angle in a triangle = 180°
40° + 78° + < N = 180°
118° + <N =180
<N = 180 -118
<N=62°
Struggling with this one really need help on this one!!
Hi
P(C) is first B then C
so P ( B) = 0.4
event C is 0.2 also P( C) = 0.4 x 0.2 = 0.08
Dean's balcony is 3 feet wide and 9 feet long. Dean paid $2.00 per square foot to have the balcony stained. How much did he pay?
plz hurry!
Answer:
$54.00
Step-by-step explanation:
area of balcony= length * width
area= 3*9
area= 27 sq.feet
cost of 1 sq.feet=$2.00
cost of 27 sq.feet= $2.00*27
cost of 27 sq.feet= $54.00
Drag each tile to the correct box.
Using the order of operations, what are the steps for solving this expression?
40=8+32 +(15–7)x2
Arrange the steps in the order in which they are performed.
3 “squared”
15-7
14 +16
40:8
8x2
5+9
Answer:
15 - 7 (Parentheses)3² (Exponents)8 × 2 (Multiplication)40 ÷ 8 (Division)5 + 9 (Addition starting from the leftmost)14 + 16 (Addition after the first addition operation)Concept:
When encountering questions that ask for simplifying expressions through operation, following the PEMDAS method would be easier:
ParenthesesExponentsMultiplicationDivisionAdditionSubtractionTherefore, the whole process of simplifying the given expression should follow the PEMDAS method. For extra, whenever there are two occurences of the same operation, then prioritize the leftmost and go right.
Hope this helps!! :)
Please let me know if you have any questions or need further explanation
The Sunshine Cleaning service can vacuum 8 square yards of flooring every 4 minutes. Which graph includes ordered pairs that represent this relationship?
Answer:
It's the second graph, I circled it in blue
At the beginning of the day, a water tank contained 526.8 gallons of water. During the day, some of the water was used to water a garden. At the end of the day, the water tank contained 318.05 gallons of water.
What was the total amount of water used that day?
a. 202.75 gallons
b. 208.75 gallons
c. 208.85 gallons
d. 210.80 gallons
NO LINKS OR ANSWERING QUESTIONS YOU DON'T KNOW!!!!
Answer:
B. 208.75 gallonsStep-by-step explanation:
Let the volume of used water is x.
We have:
526.8 - x = 318.05x = 526.8 - 318.05x = 208.75Correct choice is B
Solve
E(-6, 5), F(3, -3)
y=4th qrd -6 ¡5 f= 3rd qrd 3 and ¡3
4(x-1) =2(x+9)
2 11
Show ur work
Answer:
[tex]thank \: you[/tex]
Answer: x = 11
Step-by-step explanation:
Given
4 (x - 1) = 2 (x + 9)
Expand parentheses and apply the distributive property
4x - 4 = 2x + 18
Subtract 2x on both sides
4x - 4 - 2x = 2x + 18 - 2x
2x - 4 = 18
Add 4 on both sides
2x - 4 + 4 = 18 + 4
2x = 22
Divide 2 on both sides
2x / 2 = 22 / 2
[tex]\boxed {x=11}[/tex]Hope this helps!! :)
Please let me know if you have any questions
HELP!
10. Bill and Kate dined at a restaurant, and their bill was $49.98. They would like to leave a tip of
approximately 15% of their bill. Which of the following is the closest to this amount?
D. $12.50
E. $15.00
C. $10.00
A. $5.00
B. $7.50
Answer:
7.50$
Step-by-step explanation:
49.98÷100=0.4998=1%
0.4998×15= 7.497 which is 15%of their bill
6. Sam is buying tickets to a movie
online. The price of one ticket is $8.50.
An equation showing the total cost is
C = 8.50t +3.50 where t is the
number of tickets and $3.50 is a
convenience fee. What is the total cost
if he buys 4 tickets?
What’s the answer to this problem?
Answer: C = $37.5
Step-by-step explanation:
Given information
Price of one ticket = $8.50
Convenience fee = $3.50
Number of tickets = 4
Given expression
C = 8.50t + 3.50
Substitute the value of the ticket into the expression
C = 8.50 (4) + 3.50
Simplify by multiplication
C = 34 + 3.5
Simplify by addition
C = $37.5
Hope this helps!! :)
Please let me know if you have any questions