Answer:
V=7+6+8/2
Step-by-step explanation:
i can't be bothered doing my work whats the answer lol
Answer:
-8a^2 + 9a
or
9a - 8a^2
the answer is c
Step-by-step explanation:
What is the value of t in this equation?
(j Superscript negative 12 Baseline) Superscript negative 5 Baseline = j Superscript t
Answer:
60
Step-by-step explanation:
The value of t in this equation is 60. The solution is given below.
What is a quadratic equation?A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.
Given;
(j Superscript negative 12 Baseline) Superscript negative 5 Baseline = j Superscript t
Now,
The equation will be j(20+100)=j(2t)
20+100=2t
120=2t
120/2=t
t=60
Therefore, the answer of the given equation will be 60.
Learn more about quadratic equations;
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Solve the proportion. 2/x-3 = 5/x
a. 5
b. 2
c.10
d.15
Answer: a.5
Step-by-step explanation: You cross multiply and get 2x=5x-15. You then simplify this, getting -3x=-15. So the answer is 5.
A pancake recipe calls for 1/8 cup of oil per cup of mix. Owen wants to use 3 1/2 cups of pancake mix. He has 1/2 cup of oil. Does Owen have enough oil to make the pancakes? Explain.
Answer:
Owen has enough to make 3 1/2 of pancake mix.
Step-by-step explanation:
Since the ratio is 1/8 cup of oil per cup of mix and Owen has 1/2 a cup of mix, he has enough to cover the 3 cups of mix since that would be 3/8 cups of oil. He has enough to cover 1/2 a cup as well because that'd be 1/16 cup of oil.
Answer:
Owen has enough to make 3 1/2 of pancake mix.
Step-by-step explanation:
Which statement about the relative areas of AABC and
AXYZ is true?
The area of AABC > the area of AXYZ
The area of AABC < the area of AXYZ
The area of AABC = the area of AXYZ
More information is needed to compare.
The area of
98°
Since the area of triangle ABC is difficult to determine, hence their area is difficult to compare
How to find the area of a triangleThe triangle is a 2-dimensional figure with two sides. The formula for finding the area of a triangle is expressed as:
A = 1/2 * base * height or;
A = 1/2absin Ф
where
Ф is the angle between the height and
h is the perpendicular distance
While we can calculate the area of triangle XYZ, the area of triangle ABC is difficult to determine since we do not have the perpendicular height
Learn more on area of triangle here:
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if a tangent ratio is 4/20, what is the measure of the tangent? A) 0.2
B) 3.8
C)8.2
D) 5.2
Answer:
A
Step-by-step explanation:
The tangent of 4/20 is 0.20271 and u round to the 4th digit
Damari needs to paint the circular concrete mural at the park. The mural has a diameter of 45 feet. A gallon of paint covers approximately 300 square feet. Each gallon is $18.99. How much will Damari spend in order to paint the mural? Use 3.14 to approximate π .
Answer:
$100.647
Step-by-step explanation:
Diameter = 45ft
Radius = diameter / 2 = 45 / 2 = 22.5ft.
1 gallon of paint covers 300ft²
1 gallon cost $18.99
The total area of the mural = πr² (since it's circular and area of a circle = πr²)
Area = πr²
Area = 3.14 * (22.5)²
Area = 1589.625ft²
The total area of the mural = 1589.625ft²
1 gallon of paint covers 300ft²
X gallons of paint will cover 1589.625ft²
Making x the subject by cross multiplying
X = (1 * 1589.625) / 300
X = 5.29875 gallons.
5.3 gallons will be required to paint 1589.625ft²
But 1 gallon costs = $18.99
5.3 gallons will cost $ y
y = (5.3 * 18.99) / 1
y = $100.647
Damari will spend $100.647 to paint the mural.
Question:
A company is studying the effects of a new drug on an illness called ataraxia. 100 patients suffering from ataraxia are found. The
company plans to give the new drug to 50 of them and a placebo to 50 of them. The recovery rates for the two groups will then be
compared
1. The division into two groups of 50 should be made randomly. Give an example of how to do this.
2. Why is it important to divide the groups randomly? Explain, and be sure to refer to the terms control, variable, and lurking.
es )
Answer:
1 do the division by a draw of their names into 2 teams
2 there might be one group with a higher age and thus a lower chance of being cured and you should know all variables and have control over the project
Step-by-step explanation:
Answer:
1. There are multiple methods to choosing randomly from a selection. One instance could be choosing names from a hat.
2. Dividing the groups randomly allows for an equal and fair distribution of people for the control and variable groups. The 50 people receiving the drug are the variable group, while the other 50 receiving the placebo are the control group.
Step-by-step explanation:
Random selection is used in testing in order to assure the lack of bias from researchers. In real trials, random selection would likely be done through the company's own software, or an Excel spreadsheet.
Random selection is also used in order to remove lurking variables. An example of a lurking variable could be shown as follows:
A researcher is studying a connection between heart disease and cholesterol intake. Aspects unrelated to the study could still have an effect on the quality of the results, like whether people in the groups smoked or was very stressed. Random distribution assists in removing any lurking variables - and if it can't fully remove them, it will at least distribute them fairly across the control and variable groups.
If mVQ=(y+7), mQR=(x+11), mRS=(3y),and mST=65,findthevaluesofxandy
Answer:
The values of x and y are x = 25 and y = 18
Step-by-step explanation:
The measure of an arc is equal to the measure of the central angle subtended by it
In circle W
∵ W is the center of the circle
∵ m∠QWS = 90°
∵ ∠QWS is subtended by arc QS
- Use the rule above
∴ m∠QWS = m arc QS
∴ m arc QS = 90°
∵ m arc QS = m arc QR + m arc RS
∵ m arc QR = (x + 11)°
∵ m arc RS = (3y)°
- Add them and equate the answer by 90
∴ (x + 11) + (3y) = 90
- Subtract 11 from both sides
∴ x + 3y = 79 ⇒ (1)
∵ VT passes through W
∴ VT is a diameter in circle W
- Diameter divides the circle into two equal arcs the measure
of its arc is 180° because the measure of the circle is 360°
∴ m arc VQRST is 180°
∵ m arc QRS = 90°
∵ m arc VQRST = m arc VQ + m arc QRS + m arc ST
- Substitute the measures of arc VQRST and QRS
∴ 180 = m arc VQ + 90 + m arc ST
- Subtract 90 from both sides
∴ 90 = m arc VQ + m arc ST
∵ m arc VQ = (y + 7)°
∵ m arc ST = 65°
∴ 90 = (y + 7) + 65
- Add like terms in the right hand side
∴ 90 = y + 72
- Subtract 72 from both sides
∴ 18 = y
Substitute the value of y in equation (1) to find x
∵ x + 3(18) = 79
∴ x + 54 = 79
- Subtract 54 from both sides
∴ x = 25
The values of x and y are x = 25 and y = 18
The perimeter of a square is 49.2 cm. The side length of the square is represented by the expression (x + 4.1) cm. What is the value of x?
The diameter of a cake is 12 centimeters and the area of one slice is 4π cm2. in terms of π how many full slices can you cut out of the cake
Step-by-step explanation:
Gievn, the diameter of a cake is 12 cm
Radius of the cake = 6 cm
area of one slice = 4π [tex]cm^{2}[/tex]
in terms of π how many full slices can you cut out of the cake = ?
Area of the cake = area of the circle = π[tex]r^{2}[/tex] = π[tex](6)^{2}[/tex] = 36 π
Area of n slices = area of the cake
(4π ) n = 36 π
n = 9
In terms of π 9 full slices can be cut out of the cake.
Answer:
9 full slices can be cut out of the cake.
Step-by-step explanation:
A flower using 1 line segment and 8 rays
Answer:
Use the one line segment as flower stem and use the 8 rays as petals.
calculate the area of the equilateral triangle state the units of your answer
Find the slope of the line.
y = -0.6x – 0.8
√34 = 5.8309518948453
Answer:
-3/5
m= y2-y1/x2-x1
m= -2-1/ 2+3
m= -3/5
Solve for an angle in right triangles help
Answer:
64.62 degrees
Step-by-step explanation:
Cosine adjacent/hypotenuse (sides)
CosB = (3/7)
B = [tex]Cos^{-1}[/tex](3/7)
B = 64.62
Answer:
64.62
Step-by-step explanation:
AC²= AB²-BC²
[tex]AC = \sqrt{ {(7)}^{2} - ({3)}^{2} } [/tex]
[tex] = \sqrt{49 - 9} = \sqrt{40} = 2 \sqrt{10} [/tex]
[tex] \tan(B) = \frac{AC }{ BC} [/tex]
[tex] B = { \tan}^{ - 1} \frac{2 \sqrt{10} }{3} [/tex]
[tex] = 64.62[/tex]
Find the value X-3=10
Answer:
x = 13
Step-by-step explanation:
x - 3 = 10
x = 13 (Add 3 to both sides to balance out the equation)
What is the sum or difference?
2y^5-4y^5
Some help please?
What are the factors of the product represented below?
Answer:
C
Step-by-step explanation:
On the top there are 4 x and 1 one.
On the left, there are 2 x and 3 one.
You put those together and you get (4x+1)(2x+3), which is C.
You could also check.
Approximate the value of pie 5 to the nearest hundredth.
Step-by-step explanation:
3.14
To round to the nearest hundredth, we therefore need to look at the digit immediately to its right—in other words, the 1 in the thousandths place. Since that number is less than 5, we need to round down—which gives us a rounded value of pi equal to 3.14
Write an explicit formula for a^n the nth term of the sequence 1,3,9....
(instead of the ^ it’s faced down if yk what i mean) please help i’m struggling thank you
Answer:
a_n = 3^(n -1)
Step-by-step explanation:
The n-th term of a geometric sequence with first term a1 and common ratio r is given by ...
a_n = a1·r^(n-1)
Your sequence has first term 1 and ratio r=3, so the sequence is given by ...
a_n = 3^(n -1)
_____
Comment on sequences and series
The sequences we commonly study are "arithmetic" and "geometric." Each of these has an explicit formula for the n-th term, based on the first term and the common difference or ratio. Similarly, each series (sum of terms of a sequence) also has a formula. That's 4 formulas to keep track of; not difficult. One of them, the formula for the n-th term of a geometric sequence, is shown above.
Solve 7x - 8 = 3x + 40
Answer:
[tex]7x-8=3x+40\\7x-3x=40+8\\4x=48\\x=12[/tex]
Answer:
Step-by-step explanation:
7x-8=3x+40
7x-3x=40+8
4x=48
x=48/4
x=12
Find the values of a and b.The diagram is not to scale
A) a = 118, b = 62
B) a = 145, b = 35
C)a = 118, b = 35
D) a = 145, b = 62
The answer is D
a = 145°, b = 62°
All of the degrees in a trapezoid should ALWAYS add up to 360°
Option D is the only option that give degrees that, if added to 118° and 35°, give 360°
Complete the statements based on the diagram,
MZA=27" because it is
to the 27° angle
The measure of 2 can be found because it is a
vertical angle to the 93' angle,
The sum of the measures of angles A, B, and C is
degrees
Answer:
An alternate interior angle, c, 180 degrees
Step-by-step explanation:
Select the best model for the graph:
a. A bucket collected water from a leak at a rate of 1.5 inches per hour
b. A diver came up for air at a rate of 2 feet every 3 seconds
Which equation describes the circle having center point (3,5) and radius r = 2
in standard form?
Answer:
x^2 + y^2 - 6x - 10y + 30 = 0.
Step-by-step explanation:
In factor form the general equation is:
(x - h)^2 + (y - k)^2 = r^2 where (h, k) is the centre and r = the radius.
So here we have:
(x - 3)^2 + (y - 5)^2 = 4.
Converting to Standard Form:
= x^2 - 6x + 9 + y^2 - 10y + 25 = 4
x^2 + y^2 - 6x - 10y + 9 + 25 - 4 = 0
x^2 + y^2 - 6x - 10y + 30 = 0.
25% of the tickets sold at a water park were child tickets. If the park sold 88 tickets in all, how many child tickets did it sell?
Answer:
22 Child tickets
Step-by-step explanation:
A quick way to solve it is to take 0.25 and multiply it by 88.
The unit cost per pound for green beans is represented by the
equation y = 1.2x. Which of these points is NOT on the graph of this
proportional relationship?
A( 0,0)
8 (2.24)
C (4.48)
D (12.10)
Al chose A as the correct answer. How did he get that answer?
The point which is not on the graph is (12, 10)
Using the equation given :
y = 1.2xComparing each point:
(0, 0)y = 1.2(0)
y = 0 (correct)
b.)
(2,2.4)y = 1.2(2)
y = 2.4 (correct)
c.)
(4, 4.8)y = 1.2(4)
y = 4.8 (correct)
d.)
(12, 10)y = 1.2(10)
y = 12 (Incorrect)
The point which is not on the graph is (12, 10)
Pls solve!!!! ill give brainlyist
Normally a game is $33.00. But the new edition version is going to be $36.62. This is an increase of what percent.
Answer: 10.9697% increase
Hope this helped
If x = 48 cm and y = 55 cm, what is the length of w?
A. 77 cm
B. 37 cm
c. 103 cm
D. 73 cm
The length of 'w' is approximately 73 cm.
Explanation:To find the length of 'w,' we can use the Pythagorean Theorem since 'w' is the hypotenuse of a right triangle with legs 'x' and 'y.' The Pythagorean Theorem states that the square of the hypotenuse is equal to the sum of the squares of the legs. So, we have:
w^2 = x^2 + y^2
Substituting the given values, we get:
w^2 = 48^2 + 55^2
w^2 = 2304 + 3025
w^2 = 5329
Taking the square root of both sides, we find:
w = √5329
w ≈ 73 cm
Final answer:
After performing the calculations, the hypotenuse w is found to be 73 cm, which corresponds to option D.
Explanation:
To find the length of w, which is the hypotenuse of the right-angled triangle with sides x = 48 cm and y = 55 cm, we use the Pythagorean theorem.
This theorem states that in a right triangle, the square of the length of the hypotenuse (w) is equal to the sum of the squares of the lengths of the other two sides (x and y).
According to the theorem:
w² = x² + y²
Plugging in the given values:
w² = 482 + 552
w² = 2304 + 3025
w² = 5329
To find w, we take the square root of both sides:
w = √5329
w = 73 cm
Therefore, the length of w is 73 cm, which corresponds to option D.