Step-by-step explanation:
volume of cube = a ³= 5³= 125 cm³
plz mark my answer as brainlist plzzzz vote me also.
hope this will be helpful to you .
Answer:125
Step-by-step explanation:
HELP!!!!!! The right circular cylinder shown has a volume of 16 cubic meters. Find its height.
A. 3 m
B. 1 m
C. 4 m
D. 2 m
Answer:
A, 3m
Step-by-step explanation:
There are two right angled triangles
given that Tan A = Tan B
Find the value of X
Answer:
[tex]x = \frac{2}{3}[/tex]
Step-by-step explanation:
Given
See attachment for triangles
Required
Find x
First, calculate tan A
From the first triangle:
[tex]tan\ A= \frac{x + 2}{x}[/tex]
Next, calculate tan B
From the second triangle:
[tex]tan\ B= \frac{4}{3x-1}[/tex]
[tex]tan\ A = tan\ B[/tex]
So, we have:
[tex]\frac{x + 2}{x}= \frac{4}{3x-1}[/tex]
Cross Multiply
[tex](x + 2)(3x - 1) = 4 * x[/tex]
Open brackets
[tex]3x^2 + 6x - x - 2 = 4x[/tex]
[tex]3x^2 + 5x - 2 = 4x[/tex]
Collect Like Terms
[tex]3x^2 + 5x - 4x- 2 =0[/tex]
[tex]3x^2 + x- 2 =0[/tex]
Expand
[tex]3x^2 + 3x - 2x- 2 =0[/tex]
Factorize:
[tex]3x(x + 1) - 2(x+ 1) =0[/tex]
Factor out x + 1
[tex](3x - 2)(x +1) = 0[/tex]
Split:
[tex]3x - 2 = 0\ or\ x + 1 = 0[/tex]
[tex]x = \frac{2}{3}\ or\ x = -1[/tex]
x can not be negative, so:
[tex]x = \frac{2}{3}[/tex]
How to sketch an angle in standard position
Answer:
Drawing an angle in standard position always starts the same way, draw the initial side along the positive x-axis. To place the terminal side of the angle, you must calculate the fraction of a full rotation the angle represents.
Answer:
Get the number of rotations of the given angle by dividing 360 degrees with respect to positive x-axis.
Step-by-step explanation:
1. First draw a horizontal line (along x-axis).
2. Locate the terminal side of the angle by dividing 360 degrees. Recall that one full rotation is equal to 360 degrees. So, to sketch 360 degrees, we will divide it by 360 degrees resulting in 1.
3. Similarly to draw 180 degrees, divide 180 by 360. This will result in 1/2. Therefore, it is half the way from x-axis.
examine the diagram.
what is the m
m
Answer:
78
Step-by-step explanation:
Answer: 76
Step-by-step explanation:
48 + 56 = 104
180 - 104 = 76
what is the value of the discriminant? 4x2+15x=3x-9
Answer:
0
Step-by-step explanation:
Use the values of a , b , and c to find the discriminant.
Help me work out the equation of the line on this graph. I'll give out the brainiest!
Answer:
y=-1/4x+2
Step-by-step explanation:
The equation would be y=-1/4x+2 because the rise is -1 and the run is 4 (you could also say the run is -4 and the rise is 1. It doesn't really matter). The line also crosses the y axis at 2, which means that 2 is the y-intercept. :)
Answer:
y = (-1/4)x +2
Step-by-step explanation:
Having the actual graph is an easy way to calculate the equation of the line. Since the format is y = mx +b we just need to plug in numbers.
b = y-intercept
m = slope
We can automatically see that the y-intercept is 2, so b = 2. To find the slope we just calculate rise over run. The line is decreasing 1 unit for every 4 units it is "running". Therefore, -1/4 is your slope.
b = 2
m = -1/4
Now, all we need to do is plug in numbers.
y = (-1/4)x +2
What is the solution to the equation?
x/7 +8 = 4
Enter your answer in the box.
x=
PLEASE ANSWER NOW
Answer:-28
Step-by-step explanation:
Can anyone tell me the area? I will give brainlist if I'm able to
Answer:
143 yds^2
Step-by-step explanation:
Find the value of x:
Geometry 6th Grade
Answer:
120°
Step-by-step explanation:
construct a line parallel to the two parallel lines through x
x = 70 + 50 = 120
please help!! i’ll give you brainliest
Answer:
Step-by-step explanation:
The common ratio is 3, so multiply the numbers of the pattern by 3. So 1x3 is 3, 3x3 is 9, 9x3 is 27, 27x3 is 81, 81x3 is 243, and just continue until you're on the 7th number; 1 was the first, 3 was the second and 9 was the third.
Are the two triangles similar? If so, why
are
they similar?
Answer:
They aren't similar.
do please help (THESE ARE EXTRA WORDS BECAUSE BRAINLY WANTS SOME)
Answer:
2 units to the right
1 units up
Step-by-step explanation:
Two athletes practice for a marathon by running back and forth on a 11-mile course. They start running simultaneously, one at a speed 2 miles faster than the other. How fast does each run if they meet 1 hr 6 minutes after starting? (The faster one is already returning at this point.) How far from the starting point do the runners meet?
Answer:
Faster runner speed: 11 mph
Slower runner speed: 9 mph
Distance from starting point: 9.9 miles
Step-by-step explanation:
Let the slower runner speed be: x
Faster runner speed: x+2
1 hour 6 minutes = 1.1 hours
Slower: 1.1(x) = 1.1x miles
Faster: 1.1(x+2) = 1.1x+2.2 miles
This means that the faster runner had gone 2.2 miles more than the slower runner.
1.1x + 2.2 > 11 miles (This is true as we know the faster runner is coming back from the 11 mile run)
1.1x > 11 - 2.2 miles
1.1x > 8.8 miles
x > 8.8 / 2.2 miles
x > 8 mph
1.1x < 11 miles (we know this is true as the slower runner has to have gone less than 11 miles as the faster runner met him on his way back)
x < 11 / 1.1 miles
x < 10 miles
8 < x < 10
Although x could be any number including decimal between 8 and 10, the obvious first answer would be 9. However we need to check if this answer is correct.
Slower runner distance to the end:
1.1(9) = 9.9 miles
11 - 9.9 = 1.1 miles
Faster runners distance from the end (when coming back)
1.1(9+2) = 1.1(11) = 12.1 miles
12.1 - 11 = 1.1 miles
The speeds 9 mph and 11 mph are now proven to be the right speeds. Using our equation before, we can figure out the distance from the starting point that they meet at. This is just how far the slower runner has gotten. So, 1.1(9) = 9.9 miles from the starting point
The runners meet at a distance of 8.8 miles from the starting point.
How to determine the time required for two runners to meet each otherAccording to statement, each runner must run back and forth on a 11-mile course. After supposing that each runner moves at constant speed, expressions for each runner are presented below:
Fast runner reaches the end
[tex](v+2)\cdot 1.1 = 11[/tex] (1)
Fast runner comes back from the end
[tex]x = \left(v+2\right)\cdot (1.1-t)-(v+2)\cdot t[/tex] (2)
Slow runner meets fast runner
[tex]x = v\cdot 1.1[/tex] (3)
Where:
[tex]v[/tex] - Speed of the slow runner, in miles per hour.[tex]t[/tex] - Comeback time of fast runner, in hours.[tex]x[/tex] - Point of the track where runners meet each other, in miles.By (1), we obtain the speed of the slow runner:
[tex]v = \frac{11}{1.1}-2[/tex]
[tex]v = 8\,\frac{mi}{h}[/tex]
The position from the starting point is calculated by (3):
[tex]x = (8\,mi)\cdot \left(1.1\,h\right)[/tex]
[tex]x = 8.8\,mi[/tex]
The runners meet at a distance of 8.8 miles from the starting point. [tex]\blacksquare[/tex]
To learn more on linear functions, we kindly invite to check this verified question: https://brainly.com/question/17058347
Helpp I’ll mark you brainlist
Answer: 1
hope it help
HELLO help lolllllllll
Answer:
x = 7
y = 12
Step-by-step explanation:
ABCD is a parallelogram.
Measures of opposite sides of a parallelogram are equal.
Therefore,
2y - 18 = y - 6
2y - y = 18 - 6
y = 12
2x + 2 = y + 4
2x + 2 = 12 + 4
2x = 16 - 2
2x = 14
x = 14/2
x = 7
In which quadrant does the terminal side of 225° angle in standard position lie
Answer:
4 th quadrant
Step-by-step explanation:
olz make me brainliest
Harvey is studying the polynomial f(x) = (2x - 3)(x - 4)(x2 + 3) and determines that the polynomial has four real roots. Is
Harvey's statement CORRECT?
A. No, the polynomial f(x) has 2 real roots and 2 complex roots when solved.
O B. Yes, the polynomial f(x) has 4 x-intercepts so the function has 4 real roots.
C. Yes, the polynomial f(x) has a degree of 4 so the function has 4 real roots.
OD. No, the polynomial f(x) has 3 real roots because there are 3 factors.
Answer:
It is A, I highly suggest you should read my explanation.
Step-by-step explanation:
(2x - 3)(x - 4)(x^2 + 3)
Exponent of 2x = 1
Exponent of x = 1
Exponent of x^2 = 2
Add them all together to get the degree. 1 + 1 + 2 = 4
Now we can tell that the polynomial can have 1,2,3,4, or no roots at all. The max number roots it can have is 4
To see the number of roots it has, we have to set each part equal to 0
2x - 3 = 0
Add 3 to both sides
2x - 3 + 3 = 0 + 3
2x = 3
Divide both sides by 2
2x/2 = 3/2
x = 3/2 or 1.5
Next,
x - 4 = 0
Add four to both sides
x - 4 + 4 = 0 + 4
x = 4
Then,
x^2 + 3 = 0
Subtract 3 from both sides
x^2 + 3 - 3 = 0 - 3
x^2 = -3
Find the square root of both sides
sqrt(x^2) = sqrt(-3)
x = i*sqrt(3), -i*sqrt(3)
Those are imaginary numbers, therefore there are not real.
The real roots are x = 3/2, 4
Harvey stated that this equation has four real roots. We can cross options B and C out since they stated he was correct.
It is not D because finding a square root of a number gives two answers; the positive and negative version, so it will have two solutions. There were only two real roots and the other two roots are complex roots.
That leaves us to option A, which states that there are 2 real and 2 complex roots. It is correct
Can someone help me with 9,10, and 11 please you don’t have to do all of them just atleast one for me
Hi! So what you will need to know is pythagorean theorm.
What the theorm basically says is a^2 + b^2 = c^2.
-- The (a,b,c) are referring to the sides of the triangles (3 letters for 3 sides).
Take note that "c" is always the side opposite of the right angle.
The other known side could be "a" or "b"
Taking a look at problem 9, identify the "c" value. The "c" value would be 35.
Then indentify the value of "b" or "a". "a" would = 20.
Plug it into the equation:
20^2 + b^2 = 35^2
400 + b^2 = 1225
solve for b.
1. subtract 400 from both sides.
b^2 = 825
b = [tex]\sqrt{825}[/tex]
you could solve for the square root but it would give a decimal numbers but I'm not sure what the teacher is looking for.
A parking lot has 25 empty spaces. If the percentage is 80, how many spaces are there in total?
Answer:
31
Step-by-step explanation:
25/0.80=31.25
(You cant have a quarter of a parking space.)
8.12
Given the diagram below, what is cos(45") ?
450
Triangle not drawn to scale
A. 2-3
B. 4/2
C.
D. JE
The value of cos 45° in the given triangle is 1/√2, Option C is correct.
What is Trigonometry?Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.
In the given right triangle the hypotenuse is 8√2
In the given triangle the two legs are equal.
Let x be the length of the two legs
By Pythagoras theorem, let us find the length of a leg.
x²+x²=(8√2)²
2x²=64(2)
2x²=128
Divide both sides by 2
x²=64
Take square root on both sides
x=8
Now let us find the cosine function, the ratio of adjacent side and hypotenuse
cos45 = 8/8√2
=1/√2
Hence, the value of cos 45° in the given triangle is 1/√2, Option C is correct.
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SMART PPL PLEASE HELP ME
Answer:
last one (d)
Step-by-step explanation:
adding subtracting or dividing is not how you use a growth factor(what my school calls a percentage in a decimal form).
Which point is located on the x-axis?
ТУ
D
A
B
3+
2
1
1
-4-3-2-1
-1
1
2
2
3
4 x
-2
-3+
-4
ОА
ОВ
Answer:
Point C
Step-by-step explanation:
Point C is located on the x-axis.
i need help with this equation ASAP pls: If you know that log5 x – logs 12 = 0, which of the following is false?
a. log5 (x – 12) = 0
b. logs (1)
= 0
c. log5 x = logs 12
d. x = 12
Answer:
the second is false
Step-by-step explanation:
because oe would match unlike 2
Which of the following describes the graph of y- V8x--64 - 5 compared to the parent cube root function?
O stretched by a factor of 2 and translated 64 units right and 5 units down
O stretched by a factor of 8 and translated 8 units right and 5 units down
O stretched by a factor of 2 and translated 8 units right and 5 units down
O stretched by a factor of 8 and translated 64 units right and 5 units down
Answer: option 4
Step-by-step explanation:
The transformation of the parent function is stretched by a factor of 2 and translated 8 units right and 5 units down
How does the transformation of a function happen?The transformation of a function may involve any change.
Usually, these can be shifted horizontally (by transforming inputs) or vertically (by transforming output), stretched (multiplying outputs or inputs), etc.
If the original function is y = f(x), assuming the horizontal axis is the input axis and the vertical is for outputs, then:
Horizontal shift (also called phase shift):
Left shift by c units: y=f(x+c) (same output, but c units earlier)
Right shift by c units: y=f(x-c)(same output, but c units late)
Vertical shift:
Up by d units: y = f(x) + d
Down by d units: y = f(x) - d
Stretching:
Vertical stretch by a factor k: y = k × f(x)
Horizontal stretch by a factor k: y = f(x/k)
Given data ,
Let the parent function be represented as f ( x )
Now , the value of f ( x ) = ∛x
And , the given function is y = ∛ ( 8x - 64 ) - 5
On simplifying , we get
Taking 8 as the common factor , we get
y = ∛ 8 ( x - 8 ) - 5
Now , the cube root of 8 is 2
So , y = 2∛(x - 8 ) - 5
The transformed function is y = 2∛(x - 8 ) - 5
And , the transformation is a vertical stretching by a factor of 2
And , a horizontal right shift by 8 and a vertical down shift by 5
Hence , the transformation of function is stretching by a factor of 2 and translated 8 units right and 5 units down
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PLEASE HELP I HAVT A 25 IN MATH
A college student shovels driveways to cover his weekly expenses. The student charges $7 for each hour he spend shoveling driveways
Which 2 unknown quantities in this situation are related?
A. The number of hours the student spends shoveling driveways
B. The number of driveways the student shovels
C. The amount of money the student earns
D. The number of college students shoveling driveways
Answer:
B and D.
Step-by-step explanation:
Hope this helps! :D
How far is the portion of her route from D to F? Round to the nearest whole number. Explain.
Answer:
DF = 1213ft
Step-by-step explanation:
Shaq wants to buy a pair of sunglasses that is 35% off. The original price is $74. What is the amount of discount ( rounded to the nearest penny) ? What is the sale price? ( rounded to the nearest penny) .
Answer:
the new price is 25.9
Step-by-step explanation:
Lin's father is paying for a $20 meal. He has a 30%-off coupon for the meal. After the discount, a 8% sales tax is applied.
What does Lin's father pay for the meal? Just type the number answer (without the dollar sign), and be prepared to explain or
show your reasoning.
Answer:
15.12
Step-by-step explanation:
Cost of meal = $20
Discount (coupon) = 30%
Amount of discount = 30% of $20
= 30/100 * 20
= 0.3 * 20
= $6
Amount paid after discount= initial cost of meal - discount
= $20 -$6
= $14
Sales tax =8%
Amount of sales tax = 8% of $14
= 8/100 * 14
= 0.08 * 14
= $1.12
Total amount paid = Amount paid after discount + Amount of sales tax
= $14 + $1.12
= 15.12
can someone please help me
The measure of the angle formed at the center of anoxygen atom in a water molecule is about 105. The angles formed at each hydrogen atom are congruent. What is the size of the angle at each hydrogen atom?
Answer:
The size is 37.5 degrees
Step-by-step explanation:
The total angle in the triangle is 180
Since the other two angles are congruent. it means that they are equal
Let us call each of the angles x
Mathematically,
x + x + 105 = 180
2x = 180-105
2x = 75
x = 75/2
x = 37.5
1 less than 1/4 Question: Peggy is pp years old. Maggie is 11 year less than \frac{1}{4} 4 1 of Peggy's age. What is Maggie's age in terms of p? ___ years
Answer:
[tex]M=\dfrac{(p-44)}{4}\ \text{years}[/tex]
Step-by-step explanation:
Given that,
Peggy is p years old.
Maggie is 11 year less than 1/4 of Peggy's age.
It means,
Maggie's age,
[tex]M=\dfrac{1}{4}\times p-11\\\\M=\dfrac{p}{4}-11\\\\M=\dfrac{(p-44)}{4}[/tex]
So, Maggie's age is [tex]\dfrac{(p-44)}{4}[/tex] years.