Answer:
12
Step-by-step explanation:
twenty seven out of forty dentists recommended a certain whitener for teeth. if 1080 dentists recommended the whitener in the survey, how many dentists were surveyed?
Answer:
1,600 dentists were surveyed in total.
Step-by-step explanation:
We can set up a proportion for this problem:
[tex]\frac{27}{40} = \frac{1080}{x}\\\\\\[/tex]
Now we can cross multiply:
[tex]27*x = 1080*40\\\\27x = 43,200\\\\27x/27 = 43,200/27\\\\x = 1,600[/tex]
1,600 dentists were surveyed in total.
A speaker is in the shape of a cube with an edge length of 3.5 inches. The speaker is sold in a package in the shape of a square prism with a base area of 16 in2 and a height of 4.25 inches. What is the surface area of the package
Step-by-step explanation:
A square prism is a three-dimensional cuboid where the base and top are equal squares and the remaining 4 faces are rectangles.
to get the surface area of the package (that square prism) the size of the content inside is irrelevant and only there to confuse us.
the package has a base area of 16 in².
that means it also has a top (or cover) area of the same size : 16 in².
as top and bottom are squares, that means their areas are the square of their side lengths.
therefore, the side length of such a square is
s = sqrt(16) = 4 in
now we know also the dimensions of the 4 rectangles that are the side areas (faces) : 4 in × 4.25 in
the area of such a rectangle is
4 × 4.25 = 17 in²
so, the total surface area is (top and bottom + 4 side areas)
2×16 + 4×17 = 32 + 68 = 100 in²
Write
17/3
as a mixed number.
O A. 3
O-B. 3
© C.53
O D. 53
Answer:
5 2/3
Step-by-step explanation:
15 ÷ 3 = 5.
with 2 leftover, you will have 2/3
5 + 2/3 = 5 2/3
Good Luck!
-kiniwih426
Answer:
I am not really sure about the answer choices, but the answer is 5 2/3
Step-by-step explanation:
17/3 - 3/3 = 1 14/3
14/3 - 3/3 = 2 11/3
11/3 - 3/3 = 3 8/3
8/3 - 3/3 = 4 5/3
5/3 - 3/3 = 5 2/3
Hopefully this helped!
Brainliest please?
In triangle, ABC, sin A = 1/2b =20,and m
Answer:
here your answer
good luck
3) At a school several teachers were holding a contest to see which class could earn the most trivia points. Mrs. Clawson's class scored 94 points. Mr. Grant's class earned 82 points. Mrs. Jones's class earned 94 and Mrs.Price's class earned 86. Determine the mean (rounded to the nearest tenth), median, mode and range of the number of points scored. Mean: Median: Mode: Range:
Answer:
Mean: 89
Median: 90
Mode: 94
Range: 12
2x=4x-8
Can someone help me solve for x
Answer:
2x=4x-8
or,2x-4x=-8
or,-2x=-8
or,x=-8/-2
or,x=4
therefore value of x =4
Shamika's grandmother opens an account with a deposit of $5,000 for Shamika as a
college savings account. The account pays 5 percent annual interest. How much
money will be in the account after 10 years?
A. 8,954.24
B. 8,144.47
C. 8,052.55
D. 7,401.22
9514 1404 393
Answer:
B. $8,144.47
Step-by-step explanation:
The compound interest formula is ...
A = P(1 +r)^t
where r is the annual rate compounded annually for t years, applied to principal P.
A = $5000(1 +0.05)^10 = $8144.47
After 10 years, there will be $8,144.47 in the account.
NEED HELP PLEASE
Complete the table to find the pattern in the number of combinations.
Row 0 0C0 = 1
Row 1 1C0 = 1 1C1 = 1
Row 2 2C0 = 1 2C1 = ? 2C2 = 1
Row 3 3C0 = 1 3C1 =? 3C2 = ? 3C3 = 1
Row 4 4C0 = 1 4C1 = ? 4C2 = ? 4C3 =? 4C4 = 1
9514 1404 393
Answer:
see attached
Step-by-step explanation:
The formula for nCk is ...
nCk = n!/(k!(n -k)!)
It always works out that nC0 = 1 and nC1 = n, and the sequence of numbers across a row of the diagram is symmetrical about the center.
This means you only need to calculate one value to finish filling your diagram.
4C2 = 4!/(2!(2!)) = (4·3)/(2·1) = 6
You will find the pattern to be ...
each element in the diagram is the sum of the two above it.
A pair of parallel lines cut by a transversal as shown. Which of the following best represents the relationship between angles p and q?
A. p = 180 degrees - q
B. q = 180 degrees - p
C. p = 2q
D. p = q
Answer:
p=q is the right answer...
sorry if it's confusing I just need help lol
Step-by-step explanation:
1urojwnsjsue929283837477393
which side lengths form a right triangle ?
Answer:
I would use Pythagorean theorem To find the lengths and just plug in numbers from the answer choices.
Step-by-step explanation:
A student scores 74,87,68,63,76 on his last five exams. His teacher will drop the lowest grade to compute the student's average. What is the students average in the class ?
Answer: 76.25
Average is the sum of numbers divided by the number of numbers
74 + 87 + 68 + 76 = 305
305 / 4 = 76.25
Write the equation for the function graphed below.
The equation of the function graphed below is f(x) = a(x - 2)² - 3 since the vertex is at (2, -3).
We have,
From the graph given,
The vertex is at (2, -3).
Now,
The vertex form of a quadratic function is given by:
f(x) = a(x - h)² + k
Where (h, k) is the vertex of the parabola.
Given the vertex (2, -3), we can plug in the values of h and k into the vertex form:
f(x) = a(x - 2)² - 3
Thus,
The equation of the function graphed below is f(x) = a(x - 2)² - 3
Learn more about functions here:
https://brainly.com/question/28533782
#SPJ3
Find x. Make sure to round to the correct number of decimal places.
Answer:
Step-by-step explanation: the x is in the right
< :
Test: Chapter 1-4 Test
Is 9 a solution to the equation x+2=x+2?
Yes
No
Answer:
Yes..............
....
.
Select the two roots of (3x+7)(2x-5)=0
A= -7/3
B= 5/2
C= -5/2
D= 7/3
Thank you
Given
(3x + 7)(2x - 5) = 0
Equate each factor to zero and solve for x
3x + 7 = 0 ⇒ 3x = - 7 ⇒ x = - \frac{7}{3}
3\7
→ A
2x - 5 = 0 ⇒ 2x = 5 ⇒ x = \frac{5}{2}
2\5
→ B
Adding Unlike denominators 1/11 + 1/4
Answer: 15/44
Step-by-step explanation:
You have to make the denominators match so:
1/11(4) + 1/4(11)=
4/44 + 11/44=
15/44
PLEASE HELPPP!
assume the random variable X has a by normal distribution with the given probability of obtaining a success.  find the following probabilities, given the number of trials in the probability of obtaining a success. P(X < 5), n = 6, p = 0.7
Answer:
-7
Step-by-step explanation:
Please answer the question in the picture
Answer:
f(x)=2x+1
Step-by-step explanation:
gradient =(y2-y1)/(x2-x1)
(3-1)/(1-0)
=2
y=1
Use the given property to complete the statement.
Distributive Property
3(x-1)= 3x - ?
A) -1
B) -3
C) 1
D) 3
Answer:
B) -3
Step-by-step explanation:
Use distributive property.
3(x-1)(3*x) - (3*1)3x - 3∴ 3(x-1) = 3x - 3
Hence, it is verified that choice B) -3 is the correct answer.
18,234.9+516.1 show your work
Answer:
18,751
Step-by-step explanation:
18 234 . 9
516 . 1
----------------
18 751 . 0
----------------
Answer:
18,751
Step-by-step explanation:
18,234.9+516.1=18,751
ok hi whats 7x + 7y pls give me the right answer i need at least a b or an a im in sixth grade so pls make me get or right
Answer:
7x + 7y = 7(x+y)
Step-by-step explanation:
Factor out 7 from the expression.
Un empresario compró 1000 tabletas a $1500 cada una. Vendió 450 de ellas obteniendo una
ganancia del 25%.
¿ A qué precio deberá vender las otras 550 restantes si la utilidad promedio del lote completodebe ser del 40%?
Answer:
Step-by-step explanation:
1000($1500(0.40)) = $600 000
450($1500(0.25)) = $168,750
600,000 - 168,750 = $431,250
$431,250 / 550 = 784.0909090... $784.09
$1500 + $784.09 = $2,284.09
Which of the following is the graph of y = -x^2 - 1?
1. One species of bamboo can grow at an average rate
of 60 centimeters per day. Assuming that the
bamboo plant maintains the average rate of
growth per day, how tall will the bamboo plant be
if it grows for:
a. 10 days?
b. 30 days?
c. one-half day?
Show step by step please
Graph the function g(x) = 4x–7.
Answer:
two dots: (0, -7), (1, -3)
and it's the line
Step-by-step explanation:
just try x=0, g(x)=-7
and x=1, g(x)=-3
12 + 4x > 24 or 10 - 12x > 22
Answer:
10 - 12 × > 22 Yan Yong sagot
Simplity -4/3 ➗2/-6
-4
-2
2
4
I
Answer:
-4
Step-by-step explanation:
-4/3÷2/-6
⇒ -4/3×-6/2
⇒ -24/6
⇒ -4
5 1/2x + 2/3x=37 what does x equal
Answer:
[tex]x=6[/tex]
Step-by-step explanation:
Convert mixed numbers to improper fractions: [tex]5\frac{1}{2} =\frac{11}{2}[/tex]
[Formula to convert mixed to improper: [tex]a\frac{b}{c} =\frac{a * c+b}{c}[/tex]]
--
[tex]\frac{11}{2} x+\frac{2}{3} x=37\\\\[/tex]
--
Find least common multiplier of 2, 3: 6
[Multiply by LCM = 6]
--
Simplify: [tex]37x=222[/tex]
Divide both sides by 37
--
Which is then simplified to 6
What is the answer please
Answer:
-2 < x < 4.5
Step-by-step explanation:
Step 1: Add 1 to all parts/sections.
[tex]-5+1<2x-1+1<8+1[/tex] [tex]-4<2x<9[/tex]Step 2: Divide all parts/sections by 2.
[tex]\frac{-4}{2}<\frac{2x}{2} <\frac{9}{2}[/tex] [tex]-2 < x < 4.5[/tex]Therefore, the range of possible values of x is -2 < x < 4.5.