Answer:
b=197.6cm
Step-by-step explanation:
Given that a = 41 and B =78°
From the diagram of the triangle,
Tan θ = opp/adj
Where θ=78°
Tan78°= b/41
b = tan78×41
b = 4.70× 41
b = 197.5944cm
To the nearest tenth
b=197.6cm
please help me i really need help
Answer:
7t +5
Step-by-step explanation:
6t +7 -2 +t
Combine like terms
6t+t +7-2
7t +5
Answer:
Relax. The answer is 7t +5
Step-by-step explanation:
Circle the 2 variables (T)
Next re-write the equation and put the varbiles equation 6t+t.
Then you have 7-2 left, you then put it next to the new equation but make sure when you do that it looks like this 6t+t+7-2.
Last you solve and your answer should be 7t+5.
Note: If a variable is alone like the t then make sure you put a one next to it
What is the factored form of 8x2 + 12x?
Answer:
Step-by-step explanation:
8x^2 + 12x
(x+4)^2
Answer:
4x( 2x + 3)Step-by-step explanation:
8x2 + 12x = (4x) × (2x) + (4x) × (3) ; we factor 4x out.
= 4x( 2x + 3)
what is a hypotenuse
Answer:
is the longest side in a triangle
Step-by-step explanation:
is the longest side in a triangle
Answer:
It is the longest side of a right triangle.
Step-by-step explanation:
A right triangle has two legs, then the (i call it a slope) hypotenuse connects the two from the top of one of leg to the end of the bottom leg.
you can calculate the hypotenuse via the Pythagorean theorem. which is A^2+B^2=C^2
Or: Leg 1^2+ Leg 2^2= Hypotenuse^2
Mary signed up for a 5K race. It is called a 5K because it is 5 kilometers long. Mary doesn’t know how far a kilometer is and wants to visualize this distance in miles. How many miles will she have to run for the race?
Answer:
its 3.1 miles hope this helped :)
Please answer this question ;(
Answer:
20 miles = 32 kilometers
64 kilometers = 40 miles
Step-by-step explanation:
Jan says that a rhombus is a parallelogram and that every parallelogram is also a rhombus. Is Jan correct?
Part 2***
Explain why or why not.
Answer:
No
Step-by-step explanation:
Not all parallelograms are rhombuses, some parallelograms include rectangles, squares, hexagons, etc.
No. Jan is not correct. So, all parallelograms are not rhombuses.
What is a rhombus?A rhombus is a parallelogram because the opposite sides are parallel but every parallelogram is not a rhombus because all sides may not be equal. Every square is a rectangle because opposite sides are equal but not every rectangle is a square because all sides might not be equal. Every square is rhombus because all sides are equal but not every rhombus is a square because the angles might not be right angles.
here, we have,
We need to identify the properties of the given figure in order to answer why one figure can not be the other one:
A rhombus has all sides equal as well as parallel but all angles might not be right angles.
A square has all four sides equal and has 4 right angles.
A rectangle has equal opposite sides and 4 right angles.
A parallelogram has opposite parallel sides.
Hence, a rhombus can be a parallelogram because the opposite sides are parallel but every parallelogram can not be a rhombus because all sides may not be equal. Every square is a rectangle because opposite sides are equal but not every rectangle is a square because all sides might not be equal. Every square is rhombus because all sides are equal but not every rhombus is a square because the angles might not be right angles.
A parallelogram has opposite sides parallel and equal in length. Also, opposite angles are equal. Squares, rectangles, and rhombuses are all parallelograms. So all parallelograms are not rhombuses.
Not all parallelograms are rhombuses, some parallelograms include rectangles, squares, hexagons, etc.
To know more about rhombus here
brainly.com/question/12665650
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In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6965 subjects randomly selected from an online group involved with ears. There were 1330 surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than 20%. Use the P-value method and use the normal distribution as an approximation to the binomial distribution. Identify the null hypothesis and alternative hypothesis. A. Upper H 0: pequals0.2 Upper H 1: pless than0.2 B. Upper H 0: pgreater than0.2 Upper H 1: pequals0.2 C. Upper H 0: pequals0.2 Upper H 1: pnot equals0.2 D. Upper H 0: pnot equals0.2 Upper H 1: pequals0.2 E. Upper H 0: pless than0.2 Upper H 1: pequals0.2 F. Upper H 0: pequals0.2 Upper H 1: pgreater than0.2 The test statistic is zequals nothing. (Round to two decimal places as needed.) The P-value is nothing. (Round to three decimal places as needed.) Because the P-value is
Answer:
Given:
Sample size, n = 6965
Sample proportion p' = [tex] \frac{1330}{6965} = 0.19 [/tex]
Let's claim that the return rate is less than 20%, ie, P = 0.2
Significance level = 0.01
The null and alternative hypotheses:
H0 : P = 0.2
H1 : P < 0.2
Option A is correct
_____________________________
For the test statistic, Z, let's use the formula:
[tex] Z = \frac{p'- P}{\sqrt{\frac{P(1-P)}{n}}} [/tex]
[tex] = \frac{0.19 - 0.2}{\sqrt{\frac{0.2(1 - 0.2)}{6965}}} = -1.887 [/tex]
Z = -1.887 ≈ -1.89
___________________________
The p-value.
This is a left tailed test.
Using z table,
P-value = P(Z ≤ -1.89) = 0.029
The pvalue is 0.029
Decision:
Because the pvalue, 0.029 is greater than level of significance, 0.01, we fail to reject null hypothesis, H0.
Conclusion:
There is not enough sufficient evidence to conclude that the return rate is less than 20%
Rosanne is training for the Austin marathon, so she plans to run 10 miles in her neighborhood this weekend. It usually takes her an hour to run 6 miles. If she generally drinks 0.5 cups of water every 1 3 of an hour, how many cups of water will she drink on her run?
Answer:2.5 cups
Step-by-step explanation:
Given
Rosanne runs 6 miles in an hour
If she drinks 0.5 cups of water every [tex]\frac{1}{3}[/tex] of an hour
So in 1 hour Rosanne drinks 1.5 cups
So, for 6 miles Rosanne drinks 1.5 cups
i.e. For [tex]1\ mile \quad \equiv \quad \frac{1}{4}\ \text{cup}[/tex]
for [tex]10\ mile\quad \equiv \quad \frac{10}{4}\ \text{cup}[/tex]
[tex]=2.5\ \text{cup}[/tex]
Answer:
2.5
Step-by-step explanation:
Sharia surveyed students and teachers to determine how long it takes each person, in minutes, to get ready for school in the morning. The plots below show the results of the survey. Which statements accurately compare the two data sets? Select three options
Answer:
B),D),E)
Step-by-step explanation:
Trust
Answer:
B,D,E
Step-by-step explanation:
I got it correct on the quiz
A company rents water tanks shaped like cylinders. Each tank has a diameter of 8 feet and a height of 3 feet. The cost is $5 per cubic foot. How much does it cost to rent one water tank?
Answer:
$754.05
Step-by-step explanation:
We have to find the volume of one tank and multiply it by the cost of renting the tank per cubic foot.
The volume of a cylinder is:
[tex]V = \pi r^2h[/tex]
where r = radius
h = height
Each tank has a diameter of 8 feet (radius = 4 feet) and a height of 3 feet.
The volume of the tank is therefore:
[tex]V = \pi * 4^2 * 3 = 150.81 ft^3[/tex]
The cost of renting is $5 per cubic foot.
Therefore, the cost of renting a tank is:
150.81 * 5 = $754.05
It costs $754.05 to rent a tank.
A figure is dilated by a scale factor of 3. If the origin is the center of dilation, what is the image of a vertex located at (3, 4)?
Answer:
(9,12).
Step-by-step explanation:
If a figure dilated by a scale factor of k and origin is the center of dilation, then the relation between point and its image is defined as
[tex]P(x,y)=P'(kx,ky)[/tex]
It is given that a figure is dilated by a scale factor of 3 and origin is the center of dilation. So,
[tex]P(x,y)=P'(3x,3y)[/tex]
We need to find the image of a vertex located at (3, 4). So, substitute x=3 and y=4 in the above rule of dilation.
[tex]P(3,4)=P'(3(3),3(4))[/tex]
[tex]P(3,4)=P'(9,12)[/tex]
Therefore, the image of a vertex located at (3, 4) is (9,12).
Answer: 9,12
Step-by-step explanation:
is this the right answer for number 12?
Answer:
figure it out urself
Step-by-step explanation:
Solve for h.
0.8h − 11.49 = 5.67 + 12.9 − 15.9h
So the right answer is 1.8
Look at the attached picture
Hope it will help you
Good luck on your assignment
HElP asap GIVING BRAINLIST HELP!!!!
Answer:
1. x = 0
2. x= 0
3. x = 10
4. x = -4
5. x = 0
6. x = -1
Pls help me with this question
Answer:
V = h·w·t cm³
Step-by-step explanation:
The volume is calculated no different than you would with a box.
V= length x width x height and yes centimeters cubed Answer:
Step-by-step explanation:
will mark BRAINLIEST for correct answer!
I have six equilateral triangles, each with a perimeter of 12cm. I fit them together to make a regular hexagon. What is the hexagon’s perimeter?
Answer:
24 cm
Step-by-step explanation:
Perimeter of equilateral triangle = 12 cm
Therefore, measure of one side of equilateral triangle = 12/3 = 4 cm
Perimeter of hexagon = 6 * measure of one side of equilateral triangle
= 6 * 4 = 24 cm
express x in term of y:x/7+2y=6
Answer:
see explanation
Step-by-step explanation:
Given
[tex]\frac{x}{7}[/tex] + 2y = 6
Multiply through by 7 to clear the fraction
x + 14y = 42 ( subtract 14y from both sides )
x = 42 - 14y
Identify the equation of the line with the given slope and Y intercept,
Answer:
y = 6x - 7
Step-by-step explanation:
We can use the equation y = mx + b as a guide to help us solve this problem
The variables are given in the problem, so we just need to replace them with their respective variables, which give us:
y = 6x - 7
Answer:
The third one down is the correct answer.
From a group of 7 men and 6 women, five people are to be selected to form a committee. How many different committees can be formed from this group?
help me i dont understand
Answer:
4/8 +6/8 I just verfying the other person's. ok
Step-by-step explanation:
I did it on a calculator ;b
PLEASE MARK FallOutChild brainliest!!
Answer:
4/8 + 6/8 = 10/8 or 1 2/8, 1 1/4
Step-by-step explanation:
When it asks for like units, it's asking for the same denominator value. You can not add fractions together when they do not have a common denominator
if you multiply the denominator and numerator in 2/4 by 2, you get 4/8
Result of 4/8 + 6/8 gives you an improper fraction of 10/8
Hope this Helps!
MATH HOMEWORK HELP PLEASE
Answer:
A
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
[tex]r=\frac{\frac{4}{25} }{\frac{2}{5} } \\r=\frac{4}{25} \times \frac{5}{2} =\frac{2}{5} <1\\s_{\infty}=\frac{a}{1-r} =\frac{\frac{2}{5} }{1-\frac{2}{5} } =\frac{2}{5} \times \frac{5}{3} =\frac{2}{3}[/tex]
Find the volume of the cone below. Round your answer to the nearest tenth if necessary. Use 3.14 for π. * PLS show work
Answer:
-The volume of the cone is 100.5[tex]in^3[/tex] .
Step-by-step explanation:
To find the volume of cone, you need the formula:
[tex]V =\frac{1}{3} \pi r^2 h[/tex]
-Use the radius and the height for the formula:
[tex]V =\frac{1}{3} \pi 4^2 6[/tex]
-Then, you solve:
[tex]V =\frac{1}{3} \pi 4^2 6[/tex]
[tex]V = \frac{1}{3}\pi[/tex] × [tex]4^2[/tex] × [tex]6[/tex]
[tex]V = \frac{1}{3}\pi[/tex] × [tex]16[/tex] × [tex]6[/tex]
[tex]V = \frac{1}{3}\pi[/tex] × [tex]96[/tex]
[tex]V = \frac{96}{3} \pi[/tex]
[tex]V = 32\pi \approx 100.53[/tex]
-Round to the nearest tenth:
[tex]V \approx 100.5[/tex]
So, therefore, the volume of the cone is 100.5[tex]in^3[/tex] .
please help ASAP :( ! which of the following is most likely to be the next step in the series?
Find the value of the variable to the nearest tenth.
Answer:
Applying Pythagorean theorem:
r = sqrt(3^2 + (14/2)^2) = sqrt(9 + 49) = sqrt(58) = ~7.6 cm
Hope this helps!
:)
I need to know these answers fast please please help!!!!
Answer:
Step-by-step explanation:
y intercept please scroll down--i need to see the rest of the graph-- y intercept is where the graph intersects with the y axis
x intercepts are x=2 and x=6
greatest value of y is y=2 and it occurs when x=4
for x between... what are the options?
if the options are greater than, equal to, or less than, the answer is greater than
Renu wants to put a border of lace around a rectangular table cover 4 m long and 2 m wide..
Find the length of the lace required for the table cover..
Answer:12m
Step-by-step explanation:
The length of the lace required will be the same as that obtained by calculating the perimeter of that table, so p= (L+W)×2
Hence, P=(4m+2m)×2
P= 12m
cube of the number -13/15
Answer:
[tex]-\frac{2197}{3375}\\\mathrm{Decimal:\quad }\:-0.65096[/tex]
Step-by-step explanation:
[tex]-\left(\frac{13}{15}\right)^3\\\mathrm{Apply\:exponent\:rule}:\quad \left(\frac{a}{b}\right)^c=\frac{a^c}{b^c}\\\left(\frac{13}{15}\right)^3=\frac{13^3}{15^3}\\=-\frac{13^3}{15^3}\\13^3=2197\\=-\frac{2197}{15^3}\\15^3=3375\\=-\frac{2197}{3375}[/tex]
Answer:
[tex] = \frac{ - 2197}{3375} [/tex]
Step-by-step explanation:
[tex]cube = {x}^{3} \\ (\frac{ - 13}{15}) ^{3} \\ \frac{ - 13}{15} \times \frac{ - 13}{15} \times \frac{ - 13}{15} \\ \\ = \frac{ - 2197}{3375} [/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
Sean is in the science lab. He needs to divide 33 grams of salt into tiny vials that hold just gram each. He has one box that contains 48 empty vials. How many more vials does Sean need to divide all of the salt?
Answer:
-15
Step-by-step explanation:
Since each vial contains one gram. and he has 33 grams, so he has 33 vials of one gram each. since he has a box that has 48 vials. he needs 15 less vials to divide the salt into vials that contain one gram each
Please mark as brainliest
Find the approximate perimeter of polygon CODIFYCODIFYC, O, D, I, F, Y plotted below.
Round your final answer to the nearest hundredth.
please helppp
Answer:
49.81
Step-by-step explanation:
the formula I used is distance=[tex]\sqrt{(x_{2}-x_{1})+(y_{2}-y_{1})}[/tex]
Lets say we are finding the distance from c to y
c=(-6,9)
y=(5,9)
cy=[tex]\sqrt{(5-(-6))^{2}+(9-9)^2 }[/tex]
cy=[tex]\sqrt{(11)^2+(0)^2}[/tex]
cy=[tex]\sqrt{121+0}[/tex]
cy=[tex]\sqrt{121}[/tex]
cy=11
And you can find the distance between y and i, i and d, d and o, o and c, using the same formula.
After solving the distance of all I got
yi=16.55294536
id=1
do=9.219544457
oc=12.04159458
After you add them all up you get 49.8140844 which rounded to the nearest hundredth is 48.81.
Thank you and I hope that is helpful.
Sorry that is actually wrong
Check out the other answer.
Answer:
51.53
Step-by-step explanation:
a chord of a circle 8 cm long subtends an angle of 120 degree at the center find the radius of the circle
Answer:
Chord = 2 • sine (Central Angle) • radius
radius = 8 cm / 2 * 0.86603
radius = 4.6187776405 cm
Step-by-step explanation: