Answer:
i need help tooooooooooooo
what is 4/5 ( 10x - 25) + 25
Answer:
8x+5
Step-by-step explanation:
Answer:
8x +5
Step-by-step explanation:
Evaluate the function for the given value: y=8x0.7^x for x=3
Answer:
y= 8(5 * 0.7) ^ 5
Step-by-step explanation:
10 points help asap hurry
Answer:
Betty is right???
Step-by-step explanation:
Look at the picture and tell me which one it is
Step-by-step explanation:
It's the seccond one, the first one doesnt go through the origin (0,0) while the second one does, making it unporportional
What is the inverse of y= 3/2x -2
Answer:
f^-1(x) = (2x + 4) / 3
Step-by-step explanation:
- switch 'y' with 'x'
x = 3/2y - 2
- solve for 'y'
x + 2 = 3/2y
- multiply each side by 2
y = (2x + 4) / 3
If the triangle is
the incenter, orthocenter, circumcenter, and centroid are all the same point.
A)
equilateral
B)
obtuse
C)
right
D)
scalene
Answer:
Obtuse
Step-by-step explanation:
plzzz give brainliest
Which quotient is greater than 3?
42 ÷ 19
40 ÷ 18
38 ÷ 14
36 ÷ 11
Please help me with problems one through four and show work. (Preferably on paper)
Step-by-step explanation:
I hope you can understand my steps and hope you all the best in matematic. There are various type of calculation, i try my best to do in easy way
HELP ASAPPPP!!! HAUSBJANAHSJISIS
Jeremie bought 5 pounds of bananas for $4.45. How much is 1 pound of bananas? Show or explain your reasoning
what is the strategies for this math problem?
Answer:
1 pound of bananas is 0.89
Step-by-step explanation:
Money over quantity 4.45/5
that means you divide so heres the layout
4.45/5 = x/1 so that is
5x=4.45 divide 5 so that gives us our variable 5÷5 that cancels out five 4.45 divide by 5 is 0.89
so for every pound of bananas is 0.89
And you would use Unite Rate as your strategy
Answer:
for 1 pound of banana...it is 0.89
Step-by-step explanation:
for 5 pound=4.45
for 1 pound =?(x)
5x=4.45×1
x=4.45/5
x=0.89
What is a 90% confidence interval for the true proportion of adult drivers who have often or sometimes talk on a cell phone when driving
The question is incomplete. Here is the complete question.
USA Today reported that 36% of adult drivers admit that they often or sometimes talk on a cell phone when driving. This was based on a random sample of 1004 adult drivers.
a) What is a 90% confidence interval for the true proportion of adult drivers who have often or sometimes talk on a cell phone when driving?
b) What is a 95% confidence interval for the true proportion of adult drivers who have often or sometimes talk on a cell phone when driving?
c) What is a 99% confidence interval for the true proportion of adult drivers who have often or sometimes talk on a cell phone when driving?
d) What do you notice?
Answer and Step-by-step explanation: The way to calculate confidence interval for proportions is by using the following formula:
[tex]z(\sqrt{\frac{p(1-p)}{n} } )[/tex]
where
p is the sample population proportion
n is the number of individuals in the sample
z is z-score associated of the % of confidence
a) A 90% confidence has a z-score of z = 1.645
Calculating:
Interval = [tex]1.645(\sqrt{\frac{0.36(1-0.36)}{1004} } )[/tex]
Interval = [tex]1.645(\sqrt{0.00023} )[/tex]
Interval = [tex]1.645(0.01515)[/tex]
Interval = 0.025
A 90% Confidence interval for true population is between 0.335 and 0.385.
b) A 95% confidence has a z-score of z = 1.96
Since the sample parameter didn't change, the interval will be:
Interval = 1.96(0.01515)
Interval = 0.03
For a 95% confidence, interval is between 0.33 and 0.39.
c) A 99% confidence has a z-score of z = 2.58
Interval = 2.58(0.01515)
Interval = 0.39
For a 99% confidence, interval is between -0.03 and 0.75
d) Confidence interval tells you how certain your results from polling or survey would represent the real population's behaviour. In the experiment above, as the percentage of certainty grows, closer the real population proportion actually is for adult drivers who often or sometimes talk on a cell phone when driving.
Find the total surface area of the figure shown.
20 cm
16 cm
10 cm
12 cm
Answer:
672
Step-by-step explanation:
(1/2×16×12)×2 + (10×12) + (10×16) + (20×10)
The total surface area of the figure is S = 672 cm²
What is the surface area of the prism?The surface area of the prism is calculated as
The formula for the surface area of a prism is SA=2B+ph, where B, is the area of the base, p represents the perimeter of the base, and h stands for the height of the prism
Surface Area of the prism = 2B + ph
The area of the triangular prism is A = ph + ( 1/2 ) bh
Given data ,
Let the area of the 2 triangles be T
Let the area of the 2 rectangles be R
Let the area of the third side be U
Now , the total surface area of the prism = T + R + U
where T = 2 x ( 1/2 ) ( 16 x 12 )
T = 192 cm²
R = ( 16 x 10 ) + ( 12 x 10 )
R = 280 cm²
And , U = 20 x 10
U = 200 cm²
Therefore , the total surface area of prism S = 192 cm² + 280 cm² + 200 cm²
S = 672 cm²
Hence , the surface area of prism is S = 672 cm²
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Please answer this math problem :)
Answer:
49/9 or 5 4/9
Step-by-step explanation:
Answer: 8 4/9
Step-by-step explanation: Hope this helps :)
Maria had $22 to spend on five pencils. After buying them she had $12.
How much did each pencil cost
Answer:
$2
Step-by-step explanation:
did it in my head........
ILL MARK BRAINLIST , pls help n
Answer:
answer is b
Step-by-step explanation:
what is another way to solve 8 × 6.98
Answer:
8 × 6.98
Step-by-step explanation:
..............
a painter mixed 1/8 quart of red paint with 7/8 paint to make purple paint. how much purple paint did the painter make.
Answer:
It made 8/8 or 1
Step-by-step explanation:
Red is being added to the purple but that makes more purple tho so....yea
Can someone answer this?
Answer:
Length of mammoth's tusk in poster = 15.33
Step-by-step explanation:
Actual height of mammoth = 10 feet 5 inches = 126 inches
Height on the poster of mammoth = 14 inches
Actual length of mammoth's tusk = 11.5 feet = 138 inches
Length of mammoth's tusk in poster = x
126 : 14 :: 138 : x
Product of mean = product of extremes
x * 126 = 14 * 138
[tex]x = \frac{14*138}{126}[/tex]
x = 15.33
Hailey's plane climbed 4,500 feet in 90 seconds. How fast did her plane climb every second?
Answer:
4590 it is 4590
Step-by-step explanation:
Help please...........................
Answer:
1st one is 16.
2nd one is 5.
Step-by-step explanation:
Multiply 4x4 and you get 16.
Multiply 5x1 and you get 5.
Please give brainlest.
13/14% of a quantity is equal to what fraction of the quantity. simplify your answer
Answer:
=1
Step-by-step explanation:
multiply the numerator and denominator by common integer
Will give brainlist
The radius of a circle is 9 centimeters. What is the length of a 96° arc?
Wrong answer but unique technique to consider: i think i inversed the ratio but i think its right
Pi = circumference/diameter
X/18 centimeters =pi
X is whole circumference 18pi cm you need to convert radians to degrees and get partial arc1 pi is 180 degrees so ratio of
Was the error inverse ratio 96/180?
180/96*18
Error here factor of 72 not 96
18*2*3*3*10/2*3*12 [edit factor should be 2 4 12 ]cancel out factors to reduce
180/4 =45cm
Correction
180*3/4*4
So answers i got are 45 cm corrected as 33.75 cm still way more than total circumference of 18pi 56cmapprox and 9.6cm both are wrong according to calculator online
Please note I canceled out pi by using is degree ratio
Double check i may be wrong
Step-by-step explanation:
Answer:
Solution, we have,
Degree measure ([tex]\theeta[/tex][tex]\alpha[/tex]) = 96° = 96[tex]\pi[/tex]/180
Radius (r) = 9cm
Length of arc (l) = ?
Now,
∝ = l /r
or, [tex]\frac{96\pi }{180}[/tex] =[tex]\frac{l}{9}[/tex]
or, l =[tex]\frac{(96\pi )(9)}{180}[/tex] =4.8[tex]\pi[/tex]cm
Please answer ASAP will give brainliest!!!!!!!
Answer: No he is not correct the answer is 6 3/8
Step-by-step explanation: so what you have to do is add the 2 numbers you it should look like this(2 3/4+ 3 5/8) then you want to add the 2 and the 3 and add the 3/4 and 5/8 it should look like this (5+11/8) then you want to converse the number to a mixed number it should look like this (5+1+3/8) then you should add the
Answer:
No. Total distance = 6 3/8.
Step-by-step explanation:
[tex]2\frac{3}{4}+3\frac{5}{8}=\frac{11}{4}+\frac{29}{8}\\\\[/tex]
[tex]=\frac{11*2}{4*2}+\frac{29}{8}\\\\=\frac{22}{8}+\frac{29}{8}\\\\=\frac{22+29}{8}\\\\=\frac{51}{8}\\\\=6\frac{3}{8}[/tex]
The total weight of 15 containers on a freight train is 330 tonnes. What is the mean weight of the containers?
Answer:
the mean weight is 22 tonnes
Step-by-step explanation:
mean=total sum/number of numbers you added
in this case the question already gave you the total so just divide right away
mean weight= 330/15 = 22 tonnes
get brainliest please help
Answer:
2
Step-by-step explanation:
9514 1404 393
Answer:
-3/2
Step-by-step explanation:
The line crosses grid intersections at (-1, 2), (1, -1) and (3, -4). These points are separated by 2 units horizontally and 3 units vertically.
The rise (vertical change) is -3 for each run (horizontal change) of +2, so the ratio rise/run is -3/2. That is the slope of the line: -3/2.
I GIVEEEEEEEEEEE BRAINLIST
Answer:
Step-by-step explanation:
B
What is the area of an rectangle with sides lengths of 5/12 foot and 2/3 foot
Answer:
The area of given rectangle is 5/18 square feet.
Step-by-step explanation:
Let l be the length of rectangle and w be the width of the rectangle.
Given information is:
Length = l = 5/12 foot
Width = w = 2/3 foot
The area of a rectangle is given by the formula
[tex]Area = Length*Width\\A = l*w[/tex]
Putting the values for width and length
[tex]A = \frac{5}{12} * \frac{2}{3}\\= \frac{10}{36}\\=\frac{5}{18}[/tex]
The area is 5/18 square feet.
Hence,
The area of given rectangle is 5/18 square feet.
Select the line that represents y=3x
Answer:
The first one is correct
Step-by-step explanation:
hope it helps ^^
Answer:
Graph C
Is the correct.
MARK BRAINLIEST (RELOAD AND CLICK THE CROWN)
The circumference of a circle is 6π ft. What is the area, in square feet? Express your answer in terms of
π
Please help
Answer:
Circumference of the circle 2π(radius)=6π ft
Therefore, radius=3 ft
Area=π(radius)²=π×3²=9π ft²
9π ft² is the right answer.
The area of circle is 9π square feet.
What is area?Area is the amount of area occupied by an object's flat (2-D) surface or shape.
The circumference of circle = 2πr
6 = 2πr
r = 3π
And the area of circle is πr².
The area of the circle = 9π
Therefore, the area of the circle is 9π square feet.
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Emergency plsssssssssssss answer this what is 0.43 rounded to the nearest hundredth
Answer:
0.430
Step-by-step explanation: