Answer:
If you are looking for d the answer is -32.
Step-by-step explanation:
-5=d/4+3
-3 -3
(4)-8=d/4(4)
-32 =d
If DB = 36 and AC = 3x - 3, what is the value of x?
Answer:
A.) 13
Step-by-step explanation:
Since DB =36, and AC is the same line, then AC = 36. The new equation is 36 = 3x - 3. Do inverse operation. Add 3 to both sides of the equation: 36+3=39 & -3+3=0. New equation is 39=3x. Finally divide. 39/3= 13.
What is the Sum of (2n^−5n−6)+(−n^2−3n+11)?
Answer:
n^2-8n+5
Step-by-step explanation:
In manufacturing processes, it is of interest to know with confidence the proportion of defective parts. Suppose that we want to be reasonably certain that less than 4% of a company's widgets are defective. To test this, we obtain a random sample of 250 widgets from a large batch. Each of the 250 widgets is tested for defects, and 6 are determined to be defective, based upon the manufacturer's standards. Using α = 0.01, is this evidence that less than 4% of the company's widgets are defective? State the hypotheses, list and check the conditions, calculate the test statistic, find the p-value, and make a conclusion in a complete sentence related to the scenario.
Answer:
Less than 4% of a company's widgets are defective.
Step-by-step explanation:
In this case we want to be reasonably certain that less than 4% of a company's widgets are defective.
The significance level of the test is, α = 0.01.
The hypothesis can be defined as follows:
H₀: At least 4% of a company's widgets are defective, i.e. p ≥ 0.04.
Hₐ: Less than 4% of a company's widgets are defective, i.e. p < 0.04.
The information provided is:
n = 250
x = 6
The sample proportion is, [tex]\hat p=\frac{x}{n}=\frac{6}{250}=0.024[/tex]
Compute the test statistic value as follows:
[tex]z=\frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n}}}\\\\=\frac{0.024-0.04}{\sqrt{\frac{0.04(1-0.04)}{250}}}\\\\=-1.29[/tex]
The test statistic value is -1.29.
The decision rule is:
The null hypothesis will be rejected if the p-value of the test is less than the significance level.
Compute the p-value as follows:
[tex]p-value=P(Z<-1.29)=0.0985[/tex]
So,
p-value = 0.0985 > α = 0.01.
The null hypothesis will not be rejected at 1% significance level.
Thus, there is not enough evidence to support the claim.
Conclusion:
Less than 4% of a company's widgets are defective.
87= 5x - 13
(Worth 10 points)
Answer:
x=20
Step-by-step explanation:
87=5x-13
100=5x ( add 13 on both sides)
x=20 ( divide by 5 on both sides)
Hope this helps plz mark brainliest :D
The cost of two pants and four shirts is $55.85. If a pant costs $7.25 more than a shirt, find the cost of a pant and a shirt. Estimate to the nearest whole number.
Cost of a shirt is $6 and cost of a pant is $13
Cost of a shirt is $7 and cost of a pant is $14
Cost of a shirt is $8 and cost of a pant is $14
Cost of a shirt is $7 and cost of a pant is $13
Answer:
B
Step-by-step explanation:
55.85 divided by 7.25 is 7. something sooooo if pants cost 7 dolars more thats 14
The cost of a shirt is $7 and the cost of a pant is $14.
The answer is option B.
What is an example of a word problem?
Word problems normally include mathematical modeling questions, where records and information approximately a positive machine is given and a student is needed to expand a model. For example, Jane had $5.00, then spent $2.00. How much does she have now?
Learn more about Word problems here: brainly.com/question/13818690
#SPJ2
Find the angle measures. Justify your responses. Given: a||b, m∠6=128 Find: m∠1,m∠3
Answer:
Angle 1 = 52
Angle 3 = 52
Step-by-step explanation:
Use the theorems
Line b is a straight line which is 180 degrees.
Angle 5 plus angle 6 need to equal 180
Angle 5 = 180 - 128 = 52
Angle 1 is the same as angle 5 because they are located in the same place on a straight line.
Angle 1 = 52 degrees.
Angle 3 is a vertical angle to angle 1, which means they are identical so angle 3 is also 52 degrees.
Write the number in standard form. 3 × 100 + 4 × 10 + 7 × 1 + 3 × (1/10) + 9 × (1/100) + 2 × (1/1000)
Answer:
374.392
Step-by-step explanation:
3*100=300
4*10=40
7*1=7
3*(1/10)=0.3
9*(1/100)=0.09
2*(1/1000)=0.002
Put them together and you get 347.392
What is the LCD of 20 and 12?
Answer:
60
Step-by-step explanation:
Joshua was offered a job that paid a salary of $77,500 in its first year. The salary was set to increase by 2% per year every year.
If Joshua worked at the job for 5 years, what was the total amount of money earned over the 5 years, to the nearest whole
number?
Answer:
if you want it as dollars and cents it is $77.50 but in nearest whole number it would be 78 dollars
Step-by-step explanation:
step 1: multiply the 2 by 5 and you get 10%
step two: you put 10 over 100 and multiply 77,500
10/100 x 77,500/1= $77.50
but when you roung it off you get 78 dollars
Answer: joshua earned $403,313 over 5 years
Step-by-step explanation:
What is the solution to the following system of equations?
4x + 2y = 18
x - y = 3
(-4,-1)
(1.4)
(-1,-4)
(4.1)
Answer:
(4,1)
Step-by-step explanation:
hope that can help!!
Which situations most likely involve the use of decimals? Choose more than one answer.
Counting the number of apples in a basket
Measuring a person's height in meters
Calculating the price of an item after tax
Predicting the next full moon
Comparing the batting averages of two baseball players
Estimating the weight of an elephant
Answer:
Estimating the weight of an elephant
Step-by-step explanation:
Put an elephant onto a large boat and the marker that the water rises to Minus the starting point
What is 113% of 85?
96.05
0 92.08
O 83.57
O 119.26
Plz help! 10 Points!!
Answer:
96.05
Step-by-step explanation:
Answer:
96.05
Step-by-step explanation:
85 times 113
9605
divided by 100
96.05
Hiya! Does anyone know this? Plz help!
I think it is Ben
i had to do dis cuz of mininum 20 characters
Answer: Ben
Step-by-step explanation: Because rational numbers can be described as fractoins deicmals and repeating numbers
Lisa bought some books. She spent a total of $45 after a discount of $6 off of her total purchase. Each book cost $3. How many books did she buy?
(a) Write an equation that could be used to answer the question above.
First, choose the appropriate form. Then, fill in the blanks with the
numbers 45, 6, and 3. Let b represent the number of books.
Х
5
?
(b) Solve the equation in part (a) to find the number of books.
b=0
Answer:
She spent 17 books
Equation: 45+6 = 51 and 51/3 = 17 books
A store sells 12-packs of ballpoint pens for $1.09 each and composition books for $2.79 each. Cindy buys m packs of ballpoint pens and n composition books. The store offers a 5% discount for every 50th customer who makes a purchase. If Cindy gets the 5% discount, which expression will represent Cindy’s bill?
A.
0.05 − 1.09m + 2.79n
B.
1.05 + 1.09m + 2.79n
C.
1.05(1.09m + 2.79n)
D.
0.95(1.09m + 2.79n)
Answer:
D
Step-by-step explanation:
100% is 1-
5% is 0.05
1-0.05 = 0.95
0.95(1.09m + 2.79n)
Answer:
d
Step-by-step explanation:
y=x-3 somebody?? pls help i cant solve it
Answer:
x=3
Step-by-step explanation:
0=x-3
-x=-3
x=3
Eli wanted to order candy online. Company A is offering 2 1/2 pounds of chocolate for $32.00. How much is Company A charging per pound of chocolate?
A. $12.80 per pound of chocolate
B. $16.25 per pound of chocolate
C. $0.07 per pound of chocolate
D. $15.75 per pound of chocolate
Answer:
A) $12.80 per pound of chocolate
Step-by-step explanation:
As, 2 1/2 pounds = 5/2 = 2.5
So for 2.5 pounds = $32
For 1 pound = 32/2.5 = 12.80
So, = 12.80
Can someone help me with this?
Answer:
8x + 5y > 400
(50, 0) for x-intercept
(0,80) for y-intercept
Step-by-step explanation:
We will let x be the # of tshirts and y be the # of hats.
The inequality is 8x + 5y > 400; the coefficient 8 comes from $8 per tshirt and 5 from $5 per hats.
For x intercept, you let y = 0;
8x + 5(0) = 400;
8x = 400; divide by 8
x = 50 or (50, 0)
For y intercept, you let x = 0;
8(0) + 5y = 400;
5y = 400; divide by 5
y = 80 or (0,80)
Percy has $70 in a savings account that earns 10% interest, compounded annually. To the nearest cent, how much interest will he earn in 3 years?
Answer:
21 because 10% of 70 is 7 so 7 x 3 is 21
Step-by-step explanation:
Evaluate [tex]\frac{u}{z} +xy^3[/tex], for u = 18, x = 8, y = 10, and z = 2.
How do I solve this?
solve the triangle a=3 b=13 c=11
A,B,C?
Answer:
uhh i dont get it
Step-by-step explanation:
the sum of a number and 6 is no less than 31
Answer:
n + 6 > 31
Step-by-step explanation:
Jenna bought a jacket for $85.75. Agnes spent 2.20 times as much on hers. How much did Agnes spend?
answer:
188.65
Step-by-step explanation:
Answer:
188.65
Step-by-step explanation:
if you do 85.75*2.20 because it says times so that means multiply.
Find the slope of each line
Answer:
The slope of the blue line is undefined
Step-by-step explanation:
This is because a vertical line cannot have a numerical value for it's slope. Also, there is no y-intercept
All basketballs at a sporting goods store were marked down 25% during the first week of a sale. During the third week, all remaining basketballs were marked down an additional 30%. If a basketball was originally $22, how much does it cost during the third week?
Answer:
selling price= $9.9
Step-by-step explanation:
Giving the following information:
During the third week, all remaining basketballs were marked down an additional 30%.
Original price= $22
To calculate the selling price in the third week, we need to use the following formula:
selling price= original price*(1 - markdown)
selling price= 22*(0.45)
selling price= $9.9
Please help fast. I don't know what to do
Answer:
\frac{30}{104}
Step-by-step explanation:
9 is the number of boys who play football AND wrestle. 18 is the mumber of footballers, and 12 is the number of wrestlers.
18 + 12, or 30, is the number of boys who EITHER play football or wrestle.
The total number of boys playing sports is 104, so 30 out of 104 boys either play football or wrestle.
You can write this in fraction form as [tex]\frac{30}{104}[/tex].
Answer:
39/143 (B)
Step-by-step explanation:
All the boys who play football, wrestle, or both equals 18 + 12 + 9 = 39
All of the boys are the boys who play football, wretle, or both (39) + the number of outlier boys, (104) = 143 boys in total.
There is a probability of 39/143 that a boy will wrestle or football.
PLEASE HELP ASAP ILL MARK BRAINLEST
Answer:
best way would be calendar
Step-by-step explanation:
then stop watch
heartbeat
finding height?
(im not totally sure because it depends what type of timekeeping you're talking about)
1.2983 rounded to nearest hundredth
Answer:
1.3000
Step-by-step explanation:
The 9 makes the 2 move to 3. Hope this helps.
Answer:
1.30
Step-by-step explanation:
its rounding to the hundredth
Find the slope of the line that contains the points (-10,-16) and (-13,7)
Answer: -23/3
Step-by-step explanation:
M= 7+16/-13+10
