Answer:
Find the common denominator. :)
Every quarter, the Food and Drug Administration (FDA) produces a report called the Total Diet Study. The FDA's report covers a variety of food items, each of which is analyzed for potentially harmful chemical compounds. A Total Diet Study reported that no pesticides at all were found in % of the domestically produced food samples. Consider a sample of food items analyzed for the presence of pesticides. Complete parts a and b. a. Compute and for the random variable x, the number of food items found that showed no trace of pesticide. nothing (Type an integer or a decimal.)
Answer:
a) Mean = 600
Standard deviation = 12.24
B)No it is not likely because our probability of no pesticide is 75% which means that more than half of food items are without any pesticide
Step-by-step explanation:
Total number of food items = 800
We are given that no pesticides were found at all in 75% of domestically produced food samples.
So, Probability of success = p = 0.75
Probability of failure = q = 1-p = 1-0.75=0.25
Now we are supposed to find [tex]\mu[/tex] and [tex]\sigma[/tex] for random variable x
a) Mean = E(x)= [tex]n \times p = 800 \times 0.75=600[/tex]
Standard deviation =[tex]\sqrt{npq}=\sqrt{800 \times 0.75 \times 0.25}=12.24[/tex]
b)Is it likely that you would observe fewer than half of the food items without any traces of pesticides ? Why or why not ?
No it is not likely because our probability of no pesticide is 75% which means that more than half of food items are without any pesticide
A grocery store sells steak for $6.10 per pound. What would be the cost of 2 3/5
lb of steak?
Answer: The answer is $15.86
Step-by-step explanation: You would change 6.10 into a fraction, which is 61/10. Then you would mulitply that and that number as a decimal would be 15.86.
Answer:
$15.86
Step-by-step explanation:
You divide 6.10 by 5 and you get 1.22 then u multiply 1.22 by 3 and you get 3.66 and add 6.10 and 6.10 and 3.66 to get your answer.
When a standard pair of six sided dice are rolled, what is the probability of getting a 6?
(Express your answer as a decimal rounded to the thousandsth place.)
Answer:
0.5 because it has a total of 6 sides
What is the answer in a short sentence
Answer:
HI
Step-by-step explanation:
I need help!! Its so hard for me i tryed so many times and still no answers
7:1 2:14 3:21 4:28 5:35 6:42 7:49
Hope you do your best
The length and width of a rectangle is (x + 5) and x, respectively.
Which statement best describes (x + 5)?
A.
The width of the rectangle is 5 times the length.
B.
The width of the rectangle is 5 more than the length.
C.
The length of the rectangle is 5 more than the width.
D.
The length of the rectangle is 5 times the width.
Answer:
the lenght of the rectangle is five more than the width
Consider the relationship between the words pine and tree Which answer choice contains a pair of words with the same relationship? A. book: title B. hook: instrument C. badger: animal D. head: scarf
Answer:
Maybe it's C.
Step-by-step explanation:
Answer:
ti is A BOOK TITLE
Step-by-step explanation:
g(f(x)) easy hw question
Answer:
b
Step-by-step explanation:
-2x⁴-x³+2x²-6
hope this helps
What is the slope of the line y=-4
Answer:
slope is 0
Step-by-step explanation:
the equation describes a horizontal line with a y-intercept of -4. as the line is horizontal, the slope is 0
0.2-0.3 what is the midpoint?
Answer:
0.25
Step-by-step explanation:
5x - 12=18
Solve for x
Answer:
x = 6
Step-by-step explanation:
Add 12 to each side, so it now looks like this: 5x = 30Divide each side by 5 to cancel out the 5 next to x. It should now look like this: x = 6I hope this helps!
Which of the following is the best estimate of the measure of the angle the skateboard makes with the ground ?
Answer:
Correct choice: C. 74.5
Step-by-step explanation:
Trigonometric Ratios
In every right triangle (those who have an internal angle of 90°), the six trigonometric ratios are valid. They relate the other internal angles with the lengths of the triangle.
The skateboard, the wall, and the ground form a right triangle. We need to find the measure of the angle formed by the skateboard with the ground. Let's call it β. In a right triangle, the cosine of an angle is defined as
[tex]\displaystyle \cos\beta=\frac{\text{adjacent leg}}{\text{hypotenuse}}[/tex]
The adjacent leg of β is the side with length 8 in, and the hypotenuse is the length of the skateboard, 30 in, thus:
[tex]\displaystyle \cos\beta=\frac{8}{30}}=0.267[/tex]
Using a digital calculator we find:
[tex]\beta=\cos^{-1}(0.267)[/tex]
[tex]\beta=74.5^\circ[/tex]
Correct choice: C. 74.5
You have been asked to order a three-layer cake for the party. In order to feed 75 people, the bakery gave you the following two options for the size of each layer:
Option 1: Option 2:
Layer 1 - 10-inch diameter Layer 1- 11-inch diameter
Layer 2 - 8-inch diameter Layer 2- 7-inch diameter
Layer 3 - 6-inch diameter Layer 3- 4-inch diameter
Each layer is shaped like a cylinder and will have a height of 4 inches. The bakery charges $0.50 per cubic inch of cake.
What is the total cost of cake Option 1?
What is the total cost of cake Option 2?
Must show work and formulas
Answer:
1-11-2-7-3-4-0.50 =-26.5
Step-by-step explanation:
HELP ME get the altitude!!!!!
Ashley is making cookies. The recipe calls for ¾ of a cup of sugar. She needs to make five batches of cookies. How many cups of sugar does Ashley need?
Answer:
3 3/4
Step-by-step explanation:
3/4×5
15/4
simplify
3 3/4
Answer:
Ashley needs [tex]3\frac{3}{4}[/tex] cups of sugar
Step-by-step explanation: 3/4 multiplied by 5 is 3.75 or 3 3/4
Need help rn will give brainlyest if correct answer with explaining
unit ratio
Answer: The cost per bag is $27
Step-by-step explanation:
Divide 135 by 5 = 27
Unit ratio means that if you know the rate per unit, you can calculate the cost by multiplying the constant rate by the number of units. In this question, the rate is $27 and the unit is the bag.
The ratio looks like
1:27 as 2:54 as 3:81 as 4:108 as 5:135
They are all equivalent to 1/27
y = 27x is another way of writing an equation for this ratio.
Three consecutive integers add up to 258. What is the smallest integer?
Answer:
Answer the three consecutive integers are 85, 86 and 87. Taxicab number 1729 is the smallest integer that can be expressed as a sum of two positive integer cubes in 2 distinct ways.
Answer:
85, 86, and 87
Step-by-step explanation:
85 + 86 + 87 = 258
Brainliest Please???
a=
b=
c=
d=
e=
f=
g=
h=
i=
j=
?
Geometry practice book
Answer:
what about it ?
Step-by-step explanation:
Is a true statement? |-9|=-9
On Monday joe bought 10 cups of coffee and 5 doughnuts for his office at the cost of $16.50. On Tuesday he bought 5 cups of coffee and 10 doughnuts for a total of 14.25. How much was each cup of coffee
Answer:
each cup cost 1.25 on Tuesday
What is the average of these two values?
2 x 105 and 6 x 103
Answer:
the answer should be 414
Answer:
414
or
103.5
Step-by-step explanation:
If these are singular values and for example 2 x 105 does not mean two datasets of 105 and 6 x 103 doesnt mean six datasets of 103, then your average would be as follows
((2 x 105) + (6*103)) ÷ 2
The two being how many sets of values you have
This would be solved as follows
((210) + (618)) ÷ 2 =
(828) ÷ 2 = 414
So in this case it would be 414
However, if the two in 2 x 105 means two data sets of 105;
it would be the same steps of solving but with the ÷ 2 being replaced with ÷ 8 (2 + 6)
((2 x 105) + (6*103)) ÷ 8 =
((210) + (618)) ÷ 8 =
(828) ÷ 8 = 103.5
Hope this helps.
the sum of 8 and 7 double
Answer: 30
Step-by-step explanation:
(8+7) x 2
= 15 x 2
= 30
What is one third of 1296?
Answer:
four hundred thirty-two
Step-by-step explanation:
one third of 1296 is same as = ⅓ of 1296
⅓ of 1296 is same as = ⅓ × 1296
= ⅓ × 1296
= 1 × 1296 / 3
= 1296/3
Let us try to simplify this fraction . Both the numerator and the denominator is divisible by 3 .
Then ,
= 1296 ÷ 3 / 3 ÷ 3
= 432/1
= 432
Therefore , one third of 1296 is 432
teri works as a security guard at the local mall. Teris gross income is $2400. Teri can expect to pay 12% of her gross income for taxes. How much will she pay is taxes for the year.
Answer:
she is expected to pay $288 in taxes
Step-by-step explanation:
She is expected to pay 12% of $2400, that is: 0.12 * 2400 = 288
So she is expected to pay $288 in taxes for such income.
What is the quotient? 3/7 divided by 2/3
Answer:
3/7 divided by 2/3 is 9/14
Dana graphs a point on a coordinate plane. The value of the x- coordinate of her is 5 more than the value of the y coordinate of her point. Which ordered pair could describe the point that Dana graphs.
A) (3,2)
B) (4,9)
C) (5,5)
D) (6,1)
Please help with math, will give brainliest
Answer:
1; 31.2 2; 12.4 3; 30.8 4; 118.4 5; 16.53 (i ran out of time or else i wouldve finished, just use google for answers! ^_^)
done the rest, just Step-by-step explanation:
Can someone help me with the concept of this? We have a worksheet with like 45 questions and I have no clue how to do it. We have to say if it’s similar or not and then, how we know theyre similar, and a similarity statement
Answer:
So since QRS is ~ another triangle, and they are not exactly similar, I assume that the problem wants you to compare QRS with another angle. QRS is closely congruent to UVW (assuming that you are comparing triangles not angles).
Step-by-step explanation:
All triangles have an angle total of 180 degrees. If you add those two angles together, they have the same sum, and the third anglecan be found by subtracting the total from 180. For example, 95+36 = 131. 180-131=49, which is the third angle for triangle QRS. You can do the same for UVW.
It is important to compare them in order. For instance, Triangle QRS would not be congruent to WVU since they are not in the same order. To compare them in the correct order, compare the angles. Q is about equal to U. R is about equal to V. S is about equal to W since they both have missing angles. Therefore, you can state that triangle QRS is about equal to UVW.
9514 1404 393
Answer:
make use of the ways similarity can be shown
Step-by-step explanation:
Similarity of triangles can be shown two (2) ways:
corresponding angles are congruentcorresponding sides are proportional__
In a worksheet like this, you may see several kinds of problems. The keys will be ...
the parts that you claim are proportional or congruent must be correspondingthe sum of angles in a triangle is 180°.__
When two angles are given, as here, at least one of them in one triangle must match one in the other triangle.
Here, neither of the measures 35 and 96 matches either of the measures 36 and 95. These triangles cannot be similar.
__
Further discussion on working these problems
If one of the numbers does match, then you need to find the third angle to see if it matches the remaining angle. If two numbers match, the triangles are similar by AA.
Even if you find all three angles match, you need to carefully check any similarity statement to make sure it lists the matching angles in the same order.
For example, suppose both sets of angles in these triangles were 94 and 37. ∆QRS lists these in the order 94° angle, 37° angle. Then the similarity statement would have to list the other triangle's vertices in the same order: ∆UVW. A typical problem might claim similarity to ∆VUW, just to see if you're paying attention to detail. That claim would be false.
__
For comparing side lengths, it can work well to compare them smallest-to-largest, or in some other order you find easy to remember.
Luke has a board 5/6 of a yard long. He needs to cut the board into 5 equal sections.
Use the expression ____ to find the length of each section.
Each section is ___ yard long.
First person to answer gets 50 brainiest points!
Please I NEED this!!!
Answer:
the answer is 5/6 divided by 5 and 1/6
Step-by-step explanation:
Answer:
the answer is 5/6 divided by 5 and 1/6