Answer:
B
Step-by-step explanation:
b because everything must cost less than 80 and
< 80 means the unknown number will be less than 80.
Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!
(-3 + 3y = 9)(8x - 6y = -4)
Step-by-step explanation:
(3y=9+3)(8x-6y=-4)
(3y=12)(8x-6y=-4)
(y=12÷3)(8x-6y=-4)
(y=4)(8x-6y=-4)
Now putting the value of y in (8x-6y=-4)
8x-6*4=-4
8x-24=-4
8x=24-4
8x=20
x=20/8
x=5/2
I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER
Which distribution has the greatest spread? A. distribution 1 B. distribution 2 C. distribution 3 D. distribution 4
Answer:
D I think so
Step-by-step explanation:
HOPE IT HELPS
A simple random sample of 49 8th graders at a large suburban middle school indicated that 89% are involved in some type of after school activity. Find the 95% confidence interval that estimates the proportion of them that are involved in an after school activity.
A. [0.722], [0.978]
B. [0.802], [0.978]
C. [0.702], [0.928]
D. [0.802], [0.778]
E. [0.852], [0.857]
F. None of the above
Answer:
B. [0.802], [0.978]
Step-by-step explanation:
n=49
p=.89
confidence level of 95% has a z value of 1.960
z*= 1.960
z*=qnorm(1.95/2)
p+/-z* multiplied by sqrt[ P * ( 1 - P ) / n ]
p+/-z*times(√(p)(1-p)/n)
.89+/-1.960* (square root of (.89)(.11)/49))
calculatornetconfidenceintervalcalculatorhtml
mathuheducathyMath2311TestsTest2032311PT3helppdf
) Find the value of b for which 50y +150 is a factor of y3 – by2 +by+3b.
[tex]f(y) = y^3-by^2+by+3b\\\\\text{Since 50y+150 is a factor of f(y), }\\\\~~~~~f\left ( -\dfrac{150}{50}\right) = 0 \\\\\implies f(-3)=0 \\\\\implies (-3)^3 -b(-3)^2+b(-3)+3b =0\\\\\implies -27-9b-3b+3b=0\\\\\implies -27-9b =0\\\\\implies 9b = -27\\\\\implies b = -\dfrac{27}9\\\\\implies b = -3[/tex]
The total price of 5 pounds of bananas was $1.95. What was the price per pound?
Answer:
Well you divide the total of 1.95/5
.39 cent
Answer:
you would need to do 1.95/5 and that equals 39 cents so your answer would be .39
Write the rate in lowest terms.
A printer can print 14 pages in 56 sec.
The rate in lowest terms is ______ ?
Answer:
1 page in 4 sec.
Step-by-step explanation:
To find the rate in lowest terms, divide the 14 pages by 56 seconds and find the simplest fraction.
14/56 = 1/4 in simplest terms.
This means the rate is 1 page in 4 seconds.
What is the length of this rectangular prism?Is it 5 or 3 or 6 or 2
A pair of equations is shown below:
y = 7x − 9
y = 3x − 1
Part A: In your own words, explain how you can solve the pair of equations graphically. Write the slope and y-intercept for each equation that you will plot on the graph to solve the equations. (6 points)
Part B: What is the solution to the pair of equations? (4 points)
If you graph y=7x-9 and y=3x-1 the two lines will intersect at one point. That is how you graphically "solve" the system of equations.
Both of these lines are of the form y=mx+b where m is the slope and b is the y-intercept.
So for y=7x-9, the slope is 7 and the y-intercept is -9
For y=3x-1, the slope is 3 and the y-intercept is -1
....
The solution for this system occurs when both coordinates are equal to each other so we can say:
7x-9=3x-1 subtract 3x from both sides
4x-9=-1 add 9 to both sides
4x=8 divide both sides by 4
x=2, making y=3x-1 become:
y=3(2)-1=6-1=5, so the solution to the system of equations is:
(2,5)
Answer:
Part A: If you graph the pair of equations shown above both lines will intersect at one point and that is how you would solve the system of equations graphically. The y intercept and slope for each equation would be for y = 7x − 9 it would have a slope of 7 and y intercept of -9 and y = 3x − 1 would have a slope of 3 and y intercept of -1.
Part B:The solution to the pair of equations is (2,5)
Can y’all figure out the answer for me please
Answer:
Step-by-step explanation:
true
if angle BCA is 90° and angle EFD is 90°
and if C to A is 14, half of that is 7 which is what F to D is
6 sushi rolls cost $8.99
Guys please help me!!!
Answer:
p = 2
q = -1
k = -1
Step-by-step explanation:
Cosine functions always start above or below 0. So, the one that starts at (0, 1) is f(x) = (p)cosx + q. Sine functions always start at 0. So, the one that starts at (0, 0) is g(x) = (k)sinx.
Using the help image attached, we know that:
p and k = amplitude (top to midline)
Negative when cosx/sinx starts at the bottomq = vertical shift (movement of midline)
For f(x) = (p)cosx + q:
p = 2
q = -1
For g(x) = (k)sinx:
k = -1
Hope this helps!
A garden store recently sold 44 seed packets, including 22 squash seed packets. considering this data how many of the next 94 seed packets sold should you expect to be squash seed packets?
The expected squash seed packets is its mean or average value
You should expect 47 squash seed packets in the next 94 seed packets
How to determine the expected squash seed packets?The given parameters are:
Sample size (n) = 44 seed packetsSquash seed (x) = 22 seed packetsPopulation (N) = 94 seed packetsThe expected squash seed packets is calculated as:
E(x) = x/n * N
This gives
E(x) = 22/44 * 94
Evaluate the product
E(x) = 47
Hence, you should expect 47 squash seed packets in the next 94 seed packets
Read more about expected values at:
https://brainly.com/question/15858152
A polynomial function has – 5+ 3t as a root. Which of the following must also be a root of the function?
a
Radical roots occur as conjugate pairs
Given - 5 + t is a root , then
- 5 - t is also a root → a
I need to know the answer now please and thank you
Multiply 12•3/5. Simplify the answer and express it as a mixed number
Answer:
7 1/5
Step-by-step explanation:
12x3/5=36/5.
The solution is, 12•3/5 = 7 1/5 , expressed as a mixed number.
What is multiplication?In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
here, we have,
given that,
we have to Multiply 12•3/5
i.e. 12 * 3 /5
= (12*3 )/5
=36/5
now, as we have to express it as a mixed number,
we get,
36/5 = 7 1/5
Hence, The solution is, 12•3/5 = 7 1/5 , expressed as a mixed number.
To learn more on multiplication click:
brainly.com/question/5992872
#SPJ7
Angeline puts $2000 into savings account which receives 2.6% interest per year. How much interest will she have on her savings at the end of year??
Thank you so much!
Answer:
A nightlight uses 4.00 W of power when plugged into an outlet. Assume that the only resistance in the circuit is provided by the light bulb's filament. The current in the circuit is 3.40 X 10^-2 A. What is the voltage across the filament?
Step-by-step explanation:
[tex]\pink{ \rule{0pt}{99999pt}}[/tex]
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PLS AND TY IT IS DUE SOON :))
Answer:
b = 0.62
Step-by-step explanation:
Hello!
We can look at the y-values of the function to find our multiplier. A multiplier will determine if the graph decays or grows in an exponential function, and by how much.
When x is 0, we can see the y-value is around 3, but as x approaches 1, the y-value comes to around 2.
We can find the multiplier by dividing the current term by the previous term.
2 ÷ 32/30.6666...This number is closest to 0.62, so the approximation is 0.62.
2/3
0.6666..
Approximation is 0.62 (b)
Hope this helped! Stay healthy!♡
If the cube shown above is sliced by a plane to create a triangle, which sets of vertices could the plane pass through?
A.
4, 5, and 7
1, 2, and 7
2, 3, and 7
B.
1, 3, and 4
2, 3, and 8
1, 3, and 7
C.
3, 5, and 8
1, 2, and 6
2, 4, and 7
D.
4, 5, and 7
1, 3, and 8
2, 4, and 7
Answer:
The correct answer is D.
4, 5, and 7
1, 3, and 8
2, 4, and 7.
Hope this helps you czn!!!!!
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Answer: the correct answer is d .
4,5 and 7
1,3 and 8
2,4 and 7
Step-by-step explanation: I HOPE IT HELPS YOU BUDDY . PLEASE GIVE BRAINLIEST .THANKS .
Which of these inequalities means that
18 is greater than three times a number?
Let's write this verbal phrase as an inequality.
First of all, let the number be n.
"three times n" can be written like so:-
[tex]\pmb{3n}[/tex]
Now, 18 is greater than 3n:-
[tex]\pmb{18 > 3n}[/tex]
Which means 3n is less than 18:-
[tex]\bigstar{\boxed{\pmb{3n < 18}}}[/tex]
note:-Hope everything is clear; if you need any explanation/clarification, kindly let me know, and I'll comment and/or edit my answer :)
You make a shade of green icing using 2 drops of yellow food coloring for every 4 drops of blue. How many drops of blue food coloring would you need if you use 4 drops of yellow food coloring? how many drops of blue food coloring would u need if you use 4 drops of yellow food coloring
Answer:
8 drops of blue
Step-by-step explanation:
You doubled the yellow from 2 drops to four
so double the blue from 4 to 8
how would the equation be written with an amplitude of 3 maximum of 4 minimum of -2 period of 4 and midline of 1 (Will report scams)
[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]
Here we go ~
The required equation is :
[tex] \qquad \sf \dashrightarrow\: y = asin(bx) +k [/tex]
Now, let's find the required values :
period (p) = 4
[distance between any successive Crest or trough]
a = - 3 (flipped)
b = 2π/p = 2π/4 = π/2
k = 1
Distance of starting position from origin = k
Now, plug in the values ~
[tex] \qquad\dashrightarrow \sf\: y = -3sin(\frac{\pi}{2}x)+1 [/tex]
Help picture below problem 16
Answer:
Regular Hexagon
Step-by-step explanation:
There are six sides and all sides are equal
What is the surface area of this rectangular prism?
SA =
ft2
Answer:1,504
Step-by-step explanation:
20x16=320
20x12=240
16x12=192
16x20=320
12x16=192
12x20=240
add them all the answer will be 1,504
27 + x = 42 what is the value of x
Answer: x = 15
Step-by-step explanation:
Given:
27 + x = 42
Subtract 27 from both sides of the equation:
x = 15
27 + x = 42
Subtract 27 from both sides:
X = 15
Work out
2 × 1015
8 × 108
Give your answer in standard form
Answer:
2.03 × 103 and 8.64 × 102
Step-by-step explanation:
The line L passes through the points (5, -5) and (1, 2).
Find the gradient of line L.
gradient of L = -7/4
Explanation:
[tex]\sf gradient = \dfrac{y_2-y_1}{x_2-x_1}[/tex]
Insert the following values.
[tex]\rightarrow \sf \dfrac{2-(-5)}{1-5}[/tex]
[tex]\rightarrow \sf \dfrac{7}{-4}[/tex]
[tex]\rightarrow \sf -\dfrac{7}{4}[/tex]
Use the slope formula:-
(the slope is the same as the gradient)
[tex]\sf{\displaystyle\frac{y2-y1}{x2-x1} }[/tex]
[tex]\sf{\displaystyle\frac{2-(-5)}{1-5}}[/tex]
[tex]\sf{\displaystyle\frac{2+5}{-4} }=\frac{7}{-4} ={\boxed{-\frac{7}{4} }}\leftarrow\sf{slope~of~line~L}}}[/tex]
note:-Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I will comment and/or edit my answer :)
A cylinder has a highet of 20cm and a volume of 1004.8cm. Calculate the radius of the base of the cylinder
Answer:
radius = 4 cm
Step-by-step explanation:
r≈4cm
Using the formula
V=πr2h
Solving forr
r=V
πh=1004.8
π·20≈3.99899cm
at a certain wedding, 14/25 of the guests were over 25 years old.
Rewrite the fraction in the sentence below as a percentage.
Answer:
56% of the guests were over 25 years old.
Step-by-step explanation:
To convert a fraction to a percentage, multiply the fraction by 100. So, 14/25 can be multiplied by 4 to get 56/100, which is the same as 56%.
angle 1- what degree
Answer:
22 degrees
Step-by-step explanation:
The two bottom sides have the same angle which is 79 and all the angles must add up to 180, so 79 plus 79 is 158 and 180 minus 158 is 22.
Hope this helps.
BTW it's my birthday
Answer:
25°
Step-by-step explanation:
Exterior angle property of triangle:
Exterior angle of a triangle equals the sum of oppositer interior angles.
∠1 + 79 = 104
Subtract 79 from both sides
∠1 = 104 - 79
∠1 = 25°