Answer: This is an easy one, its either 21, 21 and a half, or 22, if not than its at least in the 20s.
Step-by-step explanation:
what is the slope of the equation y+3x=-2
Answer:
The slope is -3 and the y intercept is -2
Step-by-step explanation:
y +3x = -2
We want this in slope intercept form
y = mx+b where m is the slope and b is the y intercept
Subtract 3x from each side
y +3x-3x = -3x-2
y = -3x-2
The slope is -3 and the y intercept is -2
Answer:
the slope is -3 and the y intercept is -2
Step-by-step explanation:
y+3x=-2
you want to transform the equation into slope intercept form: y= mx+b
subtract 3x from both sides
y= -3x-2
hope this helps :)
Buffy attends a night school, and the ages of the people in his study group are 42, 55, 36, 41, 38, 33, and 46. What is the best estimate of the population mean for ages of night school attendees? Enter your answers rounded to the nearest tenth.
Answer:
41.6
Step-by-step explanation:
9TH GRADE FUNCTIONS PLEASE HELP
Answer: g(x) is -x² -3
Step-by-step explanation:
First, you know that the parabola is facing downwards, so the x must be negative.
Next, it is 3 units down from the parent graph, which adds that -3.
All of these add up to get your final equation:
g(x) is -x² -3
Unit Test
Active
What is the measure of LY?
Answer:
9.46 × 1012 kilometres or about 5.88 × 1012 (nearly six trillion miles)
Step-by-step explanation:
Rita had Rs. 32000 per month. She spent 1/3 of her money on note books and 1/4 of the remainder on stationary items. How much money is left with her?
Answer:
She has Rs 16,000 left with her
Step-by-step explanation:
In this question, we are concerned with calculating how much money is left with Rita after spending the fraction of her monthly income on the things given in the question.
Firstly, she spent 1/3 of this amount on books;
Amount spent on books is thus 32,000/3 = 10,666.67
she spent a quarter of the remainder on stationary items.
Amount spent on stationary items is 1/4 * (32,000 - 10,666.67)
= 1/4 * ( 21,333.33)
= 5,333.3325
The amount of money left with her is just simply calculated by subtracting the amount she has spent from the initial amount she had
Mathematically, that would be 32,000 - (10,666.67 + 5,333.325) = approximately Rs. 16,000
A prime die uses the first six prime numbers on its faces, one prime per face. When two prime dice are rolled randomly, there is a 1/36 probability that the product of the two numbers will be equal to 4. What is the probability that the product has a units digit of one
Answer: [tex]\frac{5}{36}[/tex]
Step-by-step explanation:
Given
dice with Prime number is rolled
The number on the face of dice are 2,3,5,7,11 and 13
Probability of getting a product of 4 is [tex]\frac{1}{36}[/tex]
Now probability of getting product has a unit digit one is possible when outcome is
[tex](3,7),(7,3),(13,7),(7,13),(11,11)[/tex]
i.e. there are 5 favorable outcomes
So probability is [tex]\frac{5}{36}[/tex]
The average waist size for teenage males is 29 inches with astandard deviation of 2 inches. If waist sizes are normallydistributed, determine the z-score of a teenage male with a33 inch waist.
Answer:
The z-score of a teenage with waist size 33 inch is 2
Step-by-step explanation:
Mathematically, the z-score can be calculated using the formula;
z-score = (x- mean)/SD
where mean = 29 inches , SD = 2 inches and x = 33 inch
Plugging these values, we have
z-score = (33-29)/2 = 4/2 = 2
The z-score of a teenage male with a33 inch waist is 2.
Given that,
The average waist size for teenage males is 29 inches with a standard deviation of 2 inches.Based on the above information, the calculation is as follows:
[tex]= (33-29)\div 2 \\\\= 4\div 2[/tex]
= 2
Therefore we can conclude that The z-score of a teenage male with a33 inch waist is 2.
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evaluate the expression when c= -4 and y= 3 c-5y
Answer:
-19
Step-by-step explanation:
If c = -4 and y = 3, replace c and y with their corresponding values in the expression, so that the expression will look like this: (-4) - (5 * 3).
Since multiplication comes before subtraction in PEMDAS, you would multiply 5 by 3, which gets you 15.
Now the expression is (-4) - (15). Then, you do the subtraction. -4 - 15 is equal to -19.
Does that help?
Final answer:
The expression c-5y evaluates to -19 when substituting c = -4 and y = 3.
Explanation:
To evaluate the expression c-5y when c = -4 and y = 3, we replace c with -4 and y with 3 in the expression. The value of the expression is -19, which is obtained by performing the arithmetic: (-4) - 5(3) = -4 - 15 = -19. Therefore, when c is -4 and y is 3, the expression c-5y yields -19.
This problem belongs to the topic of algebraic expressions, and this question demonstrates the importance of substitution to find the value of algebraic expression. This property is used has many applications in science and daily life.
Circle O is shown. Line segments O C and O B are radii. Lines are drawn from points C and B to point A to form chords. Angle C A B is 60 degrees. Which statements are true? Check all that apply. mArc C B = 120° mArc C B = 60° m∠COB = 2(m∠CAB) m∠COB = 120° m∠COB = One-half (m∠CAB)
Answer:
A, C, D, on Edge 2020
Step-by-step explanation:
The true statements about the circle are;
mArc C B = 120° m∠COB = 2(m∠CAB) m∠COB = 120° What is a line segment?A line segment is known to be a kind of line that has two endpoints. It is said to have endpoints and some other points of the line found between them.
The angle intercepted on opposite side of the circle from an ARC is one that measure of half of the Arc.
Note that ∠CBA is half of the ARC CA.
∠CAB is given as 60°
So 60*2 will give you mArc C B = 120°. The same method is applicable to m∠COB = 120°
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What function is graphed y=3cot(x)+2 y=3cot(x+3) y=3tan(x)+2 y=3tan(x+2)
Answer: y=3tan(x)+2
Step-by-step explanation:
Answer:
y=3 tan(x)+2
Step-by-step explanation:
just did it on ed
Given: C is the midpoint of BD.
Prove: ΔACB ≅ ΔACD
Triangle A B D is shown. A line is drawn down from point A to point C to form a right angle. Triangle A C B and A C D are formed by the line.
Complete the two-column proof.
♣:
♦:
Answer:
A: definition of midpoint
B: angle BCA is congruent to angle DCA
Step-by-step explanation:
To prove ∆ACB ≅ ∆ACD, we use the Reflexive Property, the definition of a midpoint, and the Side-Angle-Side Congruence Postulate, based on the given that C is the midpoint of BD and ∠ACB and ∠ACD are right angles.
Explanation:To prove that ∆ACB ≅ ∆ACD, given that C is the midpoint of BD in a triangle ABD with a line drawn from A to C creating right angles, we can use the two-column proof format.
Two-Column Proof:AC = AC (Reflexive Property of Equality)C is the midpoint of BD (Given)BC = CD (Definition of Midpoint)∠ACB and ∠ACD are right angles (Given that line AC is perpendicular to line BD)∠ACB ≅ ∠ACD (All right angles are congruent)∆ACB ≅ ∆ACD (Side-Angle-Side Congruence Postulate)By the Side-Angle-Side postulate, if two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, then the triangles are congruent.
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Jaime make $8.20 on hour in his part-time job. He made $53.30 last week. How many hours did he work.
He worked__hours?
Quick help work last question this is due soon!
Answer:
he worked for 6 hours and 30 min
Step-by-step explanation:
what you do is take 53.30 and divide it by 8.20
An equation is formed of two equal expressions. The number of hours Jaime worked last week is 6.5 hours.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
Given Jaime makes $8.20 per hour in his part-time job. He made $53.30 last week. Therefore, the number of hours he worked is,
$53.30 = n × $8.20
n = 6.5 hours
Hence, the number of hours Jaime worked last week is 6.5 hours.
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A
B
C
D
what is the answer!
Answer:
-20
Step-by-step explanation:
Substitute a point into the equation
y = -10x+b
-320 = -10(30) + b
-320 = -300+b
Add 300 to each side
-320+300 =-300+300+b
-20 =b
please help its in math
Answer:
4044
Step-by-step explanation:
14 × (pi × d)
14 × 3.14 × 92
4044.32 feet
A rectangular aquarium is 1.5 ft wide, 6ft long, and 2 ft tall. If 1 ft^3 = 7.5 gallons, how much water can the aquarium hold?
Answer:
The aquarium is 1.5 * 6 * 2 = 18 cubic feet
Water measures 7.5 gallons per cubic foot, then the aquarium can hold
(7.5 * 18) = 135 gallons
**************************
By the way, there are 7.48052 gallons per cubic foot to be EXTREMELY accurate.
Step-by-step explanation:
is 15 a common factor of 54000 and 135000
Step-by-step explanation:
To get the Greates Common Factor (GCF) of 135000 and 54000 we need to factor each value first and then we choose all the copies of factors and multiply them:
135000: 2 2 2 3 3 3 5 5 5 5
54000: 2 2 2 2 3 3 3 5 5 5
GCF: 2 2 2 3 3 3 5 5 5
The Greates Common Factor (GCF) is: 2 x 2 x 2 x 3 x 3 x 3 x 5 x 5 x 5 = 27000
Emma begins to solve the equation -4.5x + 3 = 2 - 8.5x by adding 8.5x to each side of the equation. Which next step would result in the variable terms and constant terms being on different sides of the equals sign?
A.Subtract 2 from both sides.
B.Subtract 4x from both sides.
C.Add 4x to both sides.
D.Subtract 3 from both sides.
Answer:
D.) subtract 3 from both sides
Step-by-step explanation:
-4.5x + 3 = 2 - 8.5x
8.5x - 4.5 x + 3 = 2
4x +3 = 2
next you would subtract 3 from each side
4x + 3 - 3 = 2 - 3
4x = -1
4x / 4 = -1 / 4
x = -0.25
according to the dimensions given on the right rectangular prism, what is the volume, in cubit units?
Answer:
22.5
Step-by-step explanation:
9*.5*5=22.5
tan(-216°) = _____.
tan 36°
-tan 144°
tan 144°
-tan 36°
Answer:
Tan 144
Step-by-step explanation:
Because they have the same answer when typed in a calculator
Answer:
It is -tan(36
Step-by-step explanation:
Math scores on the SAT exam are normally distributed with a mean of 514 and a standard deviation of 118. If a recent test-taker is selected at random, what is the probability the student scored 691 or greater on the exam ?
Answer:
The probability is 0.06681
Step-by-step explanation:
To calculate this, we need to calculate the standard score or z-score
Mathematically, the standard score can be calculated using the formula;
z-score = (x - mean)/SD
from the question, the mean is 514 and the standard deviation is 118
The z-score is thus = (691-514)/118 = 177/118 = 1.5
The probability we are trying to calculate is thus;
P(x ≥ 691) or P(z ≥ 1.5)
Using standard score table or calculator,
Recall, P( x < 691) = 1 - P( x ≥ 691)
Hence, P( x ≥ 691) = 1 - P( x < 691)
P( x ≥ 691) = 1 - 0.93319
= 0.06681
Final answer:
To find the probability of scoring 691 or greater on the SAT Math section, you calculate the Z-score using the given mean and standard deviation, then use this to determine the percentage of students scoring below this score, with a Z-score of 1.5 corresponding to approximately 6.68% scoring higher.
Explanation:
To determine the probability that a student scored 691 or greater on the SAT Math section, given the distribution has a mean of 514 and a standard deviation of 118, we first calculate the Z-score. The Z-score formula is Z = (X - μ) / σ, where X is the score of interest, μ is the mean, and σ is the standard deviation.
For a score of 691, the Z-score is:
Z = (691 - 514) / 118 = 177 / 118 ≈ 1.5
After calculating the Z-score, we look up this value in a standard normal distribution table or use a calculator with statistical functionalities to find the probability to the right of this Z-score. This gives us the probability of a student scoring 691 or higher on the SAT Math section.
However, without a Z-table or calculator at hand, we can approximate that a Z-score of 1.5 generally corresponds to being higher than approximately 93.32% of the distribution. Therefore, the probability of scoring 691 or greater is about 6.68% (100% - 93.32%).
PLEASE HELP!!
The height of a triangle is 4 inches more than twice the length of the base. The area of the triangle is 35 square inches. Find the height of the triangle.
Números que multiplicados den 5 y sumados 7
Answer: No hay
Step-by-step explanation:
5 es producto de 5*1 y 1*5 solamente por lo tanto no hay número que sumado de 7
I need help to find the surface area to the nearest hundreds
Answer:
The volume of the pentagonal prism is 1446.25
Step-by-step explanation:
First of all we need to calculate the area of the pentagon
A = area
a = apothem = 8.9
p = perimeter = 13 * 5 = 65
A = (a*p) / 2
A = (8.9 * 65) / 2
A = 578.5 / 2
A = 289.25
To calculate the volume of a pentagonal prism we have to use the following formula:
a = area = 289.25
v = volume
h = height = 5
v = a * h
we replace the values that we know
v = 289.25 * 5
v = 1446.25
The volume of the pentagonal prism is 1446.25
Just help me please i really need it
Answer:
2.4 hours
Step-by-step explanation:
Consider the expression?
Please help me !
Answer:
sqrt(-8x+5)
Step-by-step explanation:
(5-8x)
-----------------
sqrt(-8x+5)
We need to rationalize the denominator
(5-8x) sqrt(-8x+5)
----------------- * ---------------
sqrt(-8x-5) sqrt(-8x+5)
(5-8x) sqrt(-8x+5)
----------------- * ---------------
(-8x+5)
The first term cancels
sqrt(-8x+5)
Answer:
Second option
Step-by-step explanation:
The radical represents the square root, i.e power ½
(5 - 8x) ÷ (5 - 8x)^½
(5 - 8x)^(1-½)
(5 - 8x)^½
(-8x + 5)^½ (just a rearrangement)
Is it possible to make a triangle that has angles measuring 90 degrees, 30 degrees, and 100 degrees? If so, describe your drawing of an example. If not, explain your reasoning.
Answer: No, it's not possible as every triangle is 180 degrees. These angles add to 220 degrees which is more than 180.
Step-by-step explanation:
This is backed by the Triangle Sum Theorem which states that the three interior angles of any triangle add up to 180 degrees.
It's impossible to form a triangle with angles measuring 90, 30, and 100 degrees because the sum of those angles exceeds 180 degrees, which violates the rule that the sum of all angles in a triangle must equal 180 degrees.
Explanation:No, it is not possible to create a triangle with angle measures of 90 degrees, 30 degrees, and 100 degrees. This is because the sum of the angles in any triangle always equals 180 degrees. If you add up 90, 30, and 100, you get a sum of 220 degrees, which exceeds the 180-degree rule of triangles.
To understand this concept better, let's take a look at an example. In a right triangle, which is a triangle where one of the angles measures 90 degrees, the other two angles must add up to 90 degrees to satisfy the 180-degree rule. So, if we have a right triangle with one angle of 90 degrees and another angle of 30 degrees, the third angle would have to be 60 degrees (180 - 90 - 30), not 100 degrees.
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¼ apple juice for every ½ cup carrot juice
i need to find the unit rate
area formula of a kite
Answer:
(pq)/2
Step-by-step explanation:
p and q are the diagonals of the kite
Answer:
Area = (1/2) * (Diagonal_1)*(Diagonal_2)
where Diagonal_1 is one diagonal in the kite
and Diagonal_2 is 2nd diagonal in the kite
Step-by-step explanation:
The diagonals of a kite intersect at right angles and one diagonal bisects the other.
so you get two triangles, with a base length of (Diagonal 1)
the height_1 = a , height_2 = b
a + b = Diagonal_2
area of one triangle in Kite = (1/2)(Diagonal_1)*a
area of second triangle in Kite = (1/2)(Diagonal_1)*b
area of kite = area of triangle_1 + area of triangle_2
area of kite = (1/2)(Diagonal_1)*a + (1/2)(Diagonal_1)*b
area of kite = (1/2)*(Diagonal_1)*(a + b)
Area of kite = (1/2) * (Diagonal 1)*(Diagonal2)
What is the value of x in the equation 5x+3 = 4x?
A. -3
B. -1/3
C. 1/3
D. 3
Answer: A
Step-by-step explanation:
[tex]5x+3=4x[/tex]
Subtract 5x from both sides to isolate x's on one side and independent values on the other
[tex]-5x+5x+3=4x-5x[/tex]
[tex]3=-x[/tex]
Multiply by -1 to make x positive
[tex]-3=x[/tex]
I sold 32 posters for a total of 126. And I sold 48 posters for a total of 240. If the relationship between the number of posters and total earnings as linear what was the cost per print expressed as a slope
Answer:
The cost per print expressed as a slope is 7.125
Step-by-step explanation:
To calculate the cost per print, let’s envision that we have a graphical representation of cost of posters against the number of posters
We have the cost on the y-axis and the number of posters on the x axis
With the information given in the question, we shall be having two data points
Point 1 = (32,126)
point 2 = (48,240)
Now to find the slope of the line which is cost per print, we make use of both points in the slope equation.
Mathematically, slope m will be
m = y2-y1/x2-x1
Thus, we have;
m = (240-126)/(48-32)
m = 114/16
m = 7.125
The cost per print expressed as a slope is 7.125