Step-by-step explanation:
[tex]{x}^{2} + 4x - 7 = 0[/tex]
Take -7 to the other side making it +7
Half the coefficient of x and square it
[tex] \frac{1}{2} \times 4 = 2[/tex]
Square the answer
[tex]{2}^{2} = 4[/tex]
Join your answers
[
[tex](x + 2) - 4 = 7[/tex]
Take -4 to the other side making it +4
[tex](x + 2) = 7 + 4 \\
(x + 2) = 11
[/tex]
Square root both sides
[tex] \sqrt{x + 2}= \sqrt{11} [/tex]
[tex]x + 2 = \sqrt{11} [/tex]
Take +2 to the other side
[tex]x = - 2 \ + or - \sqrt{11} [/tex]
[tex]x = - 2 + \sqrt{11} [/tex]
or
[tex]x = - 2 - \sqrt{11} [/tex]
This can be your answering surd form if required or in decimals
Bella pushes a box to her right. In which direction does the box need to move for Bella to have done work n on it
Answer:
left
Step-by-step explanation:
if she pushes it right then she would have to push it left back to her to work on it
It needs to move to the left
What are the coefficients of -4x - 7y + 21z?
Answer:
-4
-7
21
Step-by-step explanation:
a coefficient is the number before the variable
Answer:
-4, -7, 21
Step-by-step explanation:
Coefficients are a numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g. 4 in 4x)
So in this problem -4, -7 and 21 are the coefficients
This is a triangle which has one 90-degree angle.
Answer:
the third one
Step-by-step explanation:
Answer:
icoseles
Step-by-step explanation:
WILL MARK BRAINLIEST:
A pool has a platform in the middle that is "a" units from the pool in all directions. If the area of the pool is 6a²+16a+10, find the area of the platform.
a = -5/2 = -2.500
a = 2/3 = 0.667
Theres 2 solutions. but hope i helped:)
Answer:52a+10 or 62aor62
Step-by-step explanation:
A 12-sided die is rolled. The set of equally likely outcomes is {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12} . Find the probability of rolling a number greater than 1.
Answer:
11/12
Step-by-step explanation:
Greater than 1: 2,3.... 12
P(greater than 1) = 11/12
Answer:
11/12 or 0.91666 or 91.6%
Step-by-step explanation:
Any number above one makes up 11 out of the 12 options.
Elsa went to a baseball game. The game started at 9:42 AM, and it was 3 hours 37 minutes long. When did the game end?
Answer:
1 : 19 PM
Step-by-step explanation:
9 + 3 = 12
42 + 37 + 79
12:00 + 1 hour and 19 minutes
1 : 19 pm
HELP ILL GIVE MOST BRAINLY AND 20 POINTS
Answer:
Your answer is correct. (x-4)^2 = 3
Step-by-step explanation:
x^2 - 8x + 13 (is not a perfect square so you need to move the 13 to the right by subtraction)
x^2 - 8x + ____ = -13 (In order to get A, divide the second coefficient by 2. That would be -4 in this case. Now we need to square A to find the constant. That would be 16)
(x^2 - 8x + 16) = -13 + 16 (Whatever we do on the left we add on the right, -13+16 = 3)
(x-4)^2 = 3
Which would be the best sample for
determining the favorite sport of students
at Harrison Middle School?
A. ten students at a movie theater
B. every tenth student entering the
school in the morning
C. five students from each of the
school’s sports teams
D. the first ten students in the cafeteria
at lunchtime
Answer:
It would either be B or C. More than likely it would be B.
Step-by-step explanation:
Please help solve this
What is the difference between "Probability" and "Statitistics"?
Answer: Probability deals with predicting future events but statistics involves an analysis of the frequency of past events
Step-by-step explanation:
Which expressions are equivalent to t = 2( -h - 3)
A t = - 6 - 2h
B t = 4h -6h - 6
C t = - 2h - (-6)
D t = - (6 + 4h)
In the triangle below, what is the length of the side opposite the 60° angle?
A. 3 sq root of 3
B. 3
C. Square root of 3
D. 6
Answer: B
Step-by-step explanation:
(opp/hyp)=sin60
opp=2sqr(3)x(sqr(3)/2)
opp=3
Find the square root(s) (I need a step by step answer)
Answer:
[tex]\frac{1}{\\3}[/tex]
Step-by-step explanation:
±[tex]\sqrt{ \frac{1}{9}[/tex] = ± [tex]\frac{\sqrt{1}}{\sqrt{9}}[/tex] = ± [tex]\frac{1}{3}[/tex]
there is a ± sign as both positive and negative numbers squared are positive, so the answer could be eitherWhat is the value of n in the equation below?
StartFraction 12 Superscript n Over 12 Superscript 5 EndFraction = 12 Superscript 4
Negative 20
Negative 9
9
20
Answer: I am pretty sure that the correct answer is 9.
Step-by-step explanation:
Answer:
the answer is 9
Step-by-step explanation:
got it right on edge 2021
The equation 3 – 1∕2x = –1∕2x + 3 has what type of solution set?
Question 5 options:
A)
No solutions
B)
One solution
C)
Infinitely many solutions
D)
Two solutions
Answer:
A
Step-by-step explanation:
this is because the Values are the same and x is not a known value
Answer: one solution
Step-by-step explanation: {y,x} = {-4,-2}
Just trying to help because he put the wrong answer lol
Please answer correctly, will mark brainliest answer !!!
The student's request doesn't provide a specific academic question to be answered but seeks assistance on how to cater and format a potential answer.
Explanation:No actual question has been provided; the student request outlines the type of assistance they need rather than posing a specific question related to a particular subject area.
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Quadratic fort
Solve.
-6 + 3x – 9x2 = -16
Choose 1 answer:
Martin's class needs to raise $1,250 for a river rafting trip. To find how much money each of class members must raise, Martin divides 1,250 by 25. His steps are shown 1.250 25 Step 1: (1,000 + 200 +50) = 25 Step 2: (1,000 - 25) + (200 - 25) + (50 25) Step 3: 400 + 8 + 2 Step 4: 482 In which step did Martin make his first mistake! F Step 1 G Step 2 H Step 3 J Step 4
Answer:
F) Step 1
Step-by-step explanation:
1,000+200+50=1,250, not 25
Martin made his first mistake in Step 2.
Explanation:Martin made his first mistake in Step 2.
In Step 2, Martin subtracted 25 from both 1,000 and 200, correctly. However, for the third number, 50 / 25 is actually 2, not 25. Therefore, the correct calculation should be (50 / 25) instead of (50 - 25).
So, the correct calculation in Step 2 should be (1,000 - 25) + (200 - 25) + (50 / 25) = 975 + 175 + 2 = 1,152.
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Lucy has the spinner pictured and
spins it twice in a row. What is the
probability that she lands on blue
first and then on yellow or green?
Answer:
d
Step-by-step explanation:
Final answer:
To find the probability of landing on blue first and then on yellow or green, one must multiply the probability of landing on blue by the combined probability of landing on yellow or green. However, exact probabilities cannot be provided without more information about the spinner.
Explanation:
The student is asking about the probability of a sequence of events occurring with a spinner. To calculate the probability of landing on blue first and then on yellow or green on the second spin, we must first know the individual probabilities of landing on each color. Assuming the spinner is fair and has equal sections for each color, the probability of landing on blue on the first spin (P(B)) and the probability of landing on yellow (P(Y)) or green (P(G)) on the second spin need to be calculated separately.
The probability of two independent events occurring in sequence is the product of their individual probabilities. Therefore, if the probability of landing on blue first is P(B), and the combined probability of landing on either yellow or green on the second spin is P(Y or G), then the total probability of the sequence is P(B) multiplied by P(Y or G). However, without the exact probabilities or a clear description of the spinner, we cannot provide a numerical answer.
6. A cone has a diameter of 6 inches and a height of 8 inches. Find the
volume using 3.14 for Tr. *
Final answer:
To calculate the volume of a cone with a diameter of 6 inches and a height of 8 inches, use the radius which is 3 inches and apply the formula V = 1/3πr²h, resulting in a volume of 226.08 cubic inches.
Explanation:
The subject's question is about finding the volume of a cone with a given diameter and height. The formula to calculate the volume of a cone is V = ⅓πr²h. Given that the diameter is 6 inches, the radius (r) is half of that, which is 3 inches. Using 3.14 for π (pi), and the given height (h) of 8 inches, we can substitute these values into the formula to find the volume.
So, the calculation is:
Find the radius (r) by dividing the diameter by 2, r = 3 inches.
Substitute r and h into the volume formula: V = ⅓πr²h = ⅓(3.14)(3 inches)²(8 inches).
Calculate the square of the radius (3 inches)² = 9 inches².
Multiply the area with height and π: V = ⅓(3.14)(9 inches²)(8 inches) = 226.08 cubic inches.
Therefore, the volume of the cone is 226.08 cubic inches.
A zookeeper created the following stem-and-leaf plot showing the number of tigers at each major zoo in the country:
Answer:
So the smallest number of tigers at any zoos is 7
Step-by-step explanation:
As we can see:
the data represented in the 0's is given by 7 the data represented in the 10's is given by 11 14 18 the data represented in the 20's is given by 25 25 25 26 27 27 29the data represented in the 30's is none the data represented in the 40's is noneSo the smallest number of tigers at any zoos is 7
A stem-and-leaf plot is a tool used in mathematics to organize and interpret data. In this case, it's used to understand the distribution of tigers in major zoos across the country and can help find modes, medians, ranges for the dataset.
Explanation:The question refers to a stem-and-leaf plot, a graphical tool widely used in mathematics for organizing and interpreting data. It's often used in middle school to introduce students to basics of statistics. In the context of this specific problem, the 'stems' would represent the tens place of the number of tigers and the 'leaves' would represent the ones place.
For example, a stem of 2 and a leaf of 3 would represent 23 tigers. When compiled, this plot provides an overview of the distribution of tigers in major zoos across the country. This type of graph is extensively useful for finding modes, medians, and ranges for data sets.
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During his career, Walter Payton rushed for 16,726 yards. How many feet is that? I WILL GIVE BRAINLIEST!!!!!!!!
Step-by-step explanation:
1 yard = 3 feet so we will multiply 16726 yards with 3 so answer = 16726 × 3 = 50178
Final answer:
To convert yards to feet, multiply the number of yards by 3. Walter Payton rushed for 16,726 yards, which equals 50,178 feet when converted.
Explanation:
The question asks to convert the number of yards rushed by Walter Payton during his career into feet. To find the conversion, you can use the fact that there are 3 feet in 1 yard. Therefore, to convert yards to feet, you should multiply the number of yards by 3.
Walter Payton rushed for 16,726 yards during his career. Using the conversion factor:
Feet = Yards × 3So,
Feet = 16,726 yards × 3
Feet = 50,178 feet
Thus, Walter Payton rushed for 50,178 feet during his career.
What is happening from ABCDE to A’B’C’D’E’?
2. Find 2 different ways
to get from the
pre image to the image
Answer: 1. it is being rotated by -180 degrees.
2. two different ways to get from a pre image to a image is to dilate and rotate it.
Step-by-step explanation:
The sequence of transformations is
A reflection across the x-axis followed by the y-axis and vice versaA 180 degrees rotationHow to determine the sequence of transformationsFrom the question, we have the following parameters that can be used in our computation:
ABCDE and A'B'C'D'E
Also, we can see that
The point in different directions, share the same center and are in adjacent quadrants
So, a possible transformation is
A reflection across the x-axis followed by the y-axis and vice versa
Another possible transformation is
A 180 degrees rotation
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What is the mood of the expert of the monkey paw? A.) fearful B.) Irritated C.) playful D.) Energetic
Answer:
I believe its A. Fearful.
Step-by-step explanation:
Because his story is dark and malicious because of the mood its is dark and foreboding
A rectangle has a height of 5 and a width of 4x2 – 2x – 6.
Express the area of the entire rectangle
Expression should be expanded.
Answer:
The area of the rectangle is given by the expression "20x² - 10x - 30".
Step-by-step explanation:
The area of a rectangle is given by the product of it's dimensions. This is shown in the formula bellow:
area = width*height
In this case the width is an expression, so we need to multiply the numeric part of each mnemonic
area = 5*(4x² - 2x - 6)
area = 20x² - 10x - 30
The area of the rectangle is given by the expression "20x² - 10x - 30".
give an example of proportional reasoning
Answer:
An example of something proportional is a woman's tiny feet to her short stature. An example of something proportional is the amount of pay a worker gets for the hours that they put in.
Step-by-step explanation:
Hope this helped
:)
Mr. Matthews is conducting job interviews. He has 5 candidates for a teaching job and must choose 3 of them to go on to the second round of interviews. How many possible combinations of individuals exist?
A) 5
B) 8
C) 10
D) 12
Answer: 10
Step-by-step explanation:
Question in photo pls help
Answer:
Im pretty sure its C 1.5
Step-by-step explanation:
Circle P is below
What is the arc measure of the minor arc BC in degrees?
Answer:
131
Step-by-step explanation:
Please mark the other person Brainliest.
What is the slope of y = -4?