1. The graph of the function B is shown below. Find B(1).
A. -1
B. 1
C. 2
It is NOT B... it's either A or C!
Answer:ANSWER
The correct answer is C
EXPLANATION
is just the y-value of the point where
That is, the image of 1.
If we were given the function
,we would have plug in 1 to find
Since the function is not given, we were given the graph so that we trace
from it.
So we read from the grid to find that y-value .
Each grid is one unit. So moving one unit on the x-axis and two units on the y-axis will give us the point
This means that,
ANSWER The correct answer is C EXPLANATION [tex]B(1)[/tex] is just - 1
Step-by-step explanation:
Which of the following describes the location of the opposite of the number that R represents on this line?
The area of a rectangular rug is given by the trinomial r squared minus 4 r minus 77r2−4r−77. What are the possible dimensions of the rug? Use factoring.
Answer:
[tex]r>\frac{4 +\sqrt{23732} }{154} \approx1.03\\[/tex]
Step-by-step explanation:
The area of the rectangular rug is given by this equation:
[tex]77r^2-4r-77[/tex]
The area must be a number greater than 0 since a negative area, or an area equal to 0 wouldn't have much sense. So:
[tex]77r^2-4r-77>0[/tex]
Let's find the roots of this equation using the quadratic formula:
[tex]r=\frac{-b\pm \sqrt{b^2-4ac} }{2a} =\frac{-(-4)\pm\sqrt{(-4)^2-(4)(77)(-77)} }{2(77)} \\\\r=\frac{4 \pm \sqrt{23732} }{154} \\\\r_1=\frac{4 +\sqrt{23732} }{154} \approx1.03\\\\r_2=\frac{4 - \sqrt{23732} }{154} \approx-0.97[/tex]
Now, let's evaluate the area for [tex]r>r_1[/tex] for example r=1.05:
[tex]A=77(1.05)^2-4(1.05)-77=3.6925>0[/tex]
The result is greater than zero, so for [tex]r>r_1[/tex] the values make sense.
Now let's evaluate the area for [tex]r_2<r<r_1[/tex] for example r=0.5 and r=-0.7:
[tex]A=77(0.5)^2-4(0.5)-77=-59.75<0\\\\A=77(-0.7)^2-4(-0.7)-77=-36.47<0[/tex]
The result is less than zero, so for [tex]r_2<r<r_1[/tex] the values don't make sense.
Now, let's evaluate the area for [tex]r<r_2[/tex] for example r=-1:
[tex]A=77(-1)^2-4(-1)-77=4>0[/tex]
The result is greater than zero, so for [tex]r<r_2[/tex] the values make sense
However, since negative values of r wouldn't make much sense (I never heard about of -8 inches for example) the possible dimensions of the rug are just:
[tex]r>\frac{4 +\sqrt{23732} }{154} \approx1.03\\[/tex]
Lisa has $7.80 to spend on some tomatoes and a loaf of bread. Tomatoes cost $1.20 per pound, and a loaf of bread costs $1.80. The inequality 1.20x + 1.80 ≤ 7.80 models this situation, where x is the number of pounds of tomatoes. Solve the inequality. How many pounds of tomatoes can Lisa buy? A. x ≤ 8; Lisa can buy 8 pounds or less of tomatoes. B. x ≥ 5; Lisa can buy 5 pounds or more of tomatoes. C. x ≤ 5; Lisa can buy 5 pounds or less of tomatoes. D. x ≥ 8; Lisa can buy 8 pounds or more of tomatoes.
Answer:
C. [tex]x\leq 5[/tex]; Lisa can buy 5 pounds or less of tomatoes.
Step-by-step explanation:
We have been given an inequality [tex]1.20x+1.80\leq 7.80[/tex], where x is the number of pounds of tomatoes. The inequality represents amount spend by Lisa on tomatoes and loaf. We are asked to find number of pounds that Lisa can buy.
First of all, we will subtract 1.80 from both sides of our inequality.
[tex]1.20x+1.80-1.80\leq 7.80-1.80[/tex]
[tex]1.20x\leq 6.00[/tex]
Now, we will divide both sides of our inequality by 1.20.
[tex]\frac{1.20x}{1.20}\leq \frac{6.00}{1.20}[/tex]
[tex]x\leq 5[/tex]
Therefore, Lisa can buy 5 pounds or less of tomatoes and option C is the correct choice.
Solve the equation.
–3x + 1 + 10x = x + 4
x = 1/2
x = 5/6
x = 12
x = 18
Answer:
x = 1/2
Step-by-step explanation:
-3x +1 +10x = x + 4
7x + 1 = x + 4
6x + 1 =4
6x = 3
x = 3/6
x = 1/2
An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
The value of x in the equation -3x + 1 + 10x = x + 4 is 1/2.
x = 1/2
Option A is the correct answer.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Example:
2x + 4 = 6 is an equation.
3x + 4 = 6 is an equation.
x + 5 is an equation.
3x + 4x + 5 is an equation.
We have,
The equation:
-3x + 1 + 10x = x + 4
We will solve for x.
Add 3x on both sides.
1 + 10x = x + 4 + 3x
1 + 10x = 4x + 4
Subtract 4x on both sides.
1 + 10x - 4x = 4
1 + 6x = 4
Subtract 1 on both sides.
6x = 4 - 1
6x = 3
Divide 6 on both sides.
x = 3/6
x = 1/2
Thus,
The value of x in the equation -3x + 1 + 10x = x + 4 is 1/2.
x = 1/2
Option A is the correct answer.
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Almonds cost $15.50 for 6 pounds. Find the unit rate. Round to the nearest cent if necessary.
The unit rate for almonds is approximately $2.58 per pound.
To find the unit rate, we divide the total cost by the total quantity.
In this case, the total cost is $15.50 and the total quantity is 6 pounds.
So, the unit rate is:
[tex]\[ \text{Unit rate} = \frac{\text{Total cost}}{\text{Total quantity}} \][/tex]
[tex]\[ \text{Unit rate} = \frac{15.50}{6} \][/tex]
[tex]\[ \text{Unit rate} \approx \$2.58 \][/tex]
Rounding to the nearest cent, the unit rate is approximately $2.58 per pound.
Find the 30th term in the sequence: 18,15,12
Which function represents the number if seats in a theater with n rows?
The posted speed limit in many parts in europe is 100 km/hr.what is the equivalent speed limit in miles per hour
Answer:
62.1371 miles/hr
Step-by-step explanation:
The posted speed limit in many parts in Europe = 100 kilometers per hour
We have to convert the speed limit into miles per hour.
As we know, 1 kilometer = 0.621371 miles
Therefore, 100 kilometers = 100 × 0.621371
= 62.1371 miles
The equivalent speed of 100 km/hr is 62.1371 miles/hr.
Solve the equation for y
-x+y=0
What is the area of a rectangle with vertices at (−3, −1) , (1, 3) , (3, 1) , and (−1, −3) ?
Enter your answer in the box. Do not round any side lengths.
The 26-oz jar of chocolate fudge costs $3.12. The 16-oz jar costs $2.40. How much can you save on each ounce by choosing the better buy?
What are not irrational out of square root of 15,16,17, and 18?
Simplify negative 15.5 divided by 5..
-3.1
3.1
-3.3
3.3
this was correct on my test, hope it helps! ;)
(Brainliest would help a lot btw)
People enjoyed attending the concert in the park. Twice as many men as women attended the concert. If the total attendance was 714, how many women attended the concert?
The temperature at 5:00 a.m. was –6 °F. By 3:00 p.m., the temperature had risen to a high of 36 °F. If the temperature at 8:00 p.m. decreased from the high by of the change in temperature in Fahrenheit degrees from 5:00 a.m. to 3:00 p.m., what was the temperature at 8:00 p.m.?
EDMENTUM QUESTION:
Kayla set up an outdoor digital thermometer to record the temperature overnight as part of her science fair project. She began recording the temperature, in degrees Fahrenheit, at 10:00 p.m. Kayla modeled the overnight temperature with function t, where h represents the number of hours since 10:00 p.m. t(h) = 0.5h2 − 5h + 27.5
Answer: 15°F at 3:00 a.m.
Step-by-step explanation:
Jackson purchased some power tools totaling $1,543 using a six month deferred payment plan with an interest rate of 23.76%. He did not make any payments during the deferment period. What will the total cost of the power tools set be if he must pay off the power tools within two years after the deferment period?
$1,543.00
$1,735.63
$2,197.44
$2,746.80
The total cost of the power tools set if Jackson must pay off the tools within two years after the deferment period is $2,644.82.
To find the total cost of the power tools set after the deferred payment period, we need to consider both the initial cost of the tools and the interest accrued during the deferment period and the subsequent payment period.
First, let's calculate the interest accrued during the deferment period:
Interest = Principal × Rate × Time
Interest = $1,543 × 23.76% × (6/12) (since the deferment period is 6 months)
Interest = $1,543 × 0.2376 × 0.5
Interest = $183.78
Now, add this interest to the initial cost of the power tools:
Total cost after deferment = Initial cost + Interest
Total cost after deferment = $1,543 + $183.78
Total cost after deferment = $1,726.78
Next, we need to calculate the total amount Jackson must pay off within two years after the deferment period. This includes the principal amount and the interest accrued during the payment period. We'll use the formula for calculating the total payment for a loan with compound interest:
[tex]\[A = P(1 + r/n)^{nt}\][/tex]
Where:
A = Total amount to be paid
P = Principal amount (initial cost after deferment)
r = Annual interest rate (as a decimal)
n = Number of times interest is compounded per year
t = Time in years
In this case, we'll compound interest annually, so (n = 1), and (t = 2) years.
[tex]\[A = $1,726.78(1 + 0.2376/1)^{1*2}\][/tex]
[tex]\[A = $1,726.78(1 + 0.2376)^2\][/tex]
[tex]\[A = $1,726.78(1.2376)^2\][/tex]
[tex]\[A = $2,644.82\][/tex]
So, the total cost of the power tools set if Jackson must pay off the tools within two years after the deferment period is $2,644.82.
What is the equation for the line of reflection that maps the trapezoid onto itself?
A. x= -2
B. x=0
C. y=2.5
D. y=4
A fish swims at a speed of 12 miles per hour. A boy swims at a speed of 4.4 feet per second.
3ft= 1yd
5280ft= 1mi
How much faster does the fish swim than the boy in yards per minutes?
The fish swims 264 yards per minute faster than the boy.
Explanation:To find out how much faster the fish swims than the boy in yards per minute, we first need to convert both speeds to yards per minute. Since 3 feet is equal to 1 yard, we can convert the fish's speed of 4.4 feet per second to yards per minute by multiplying it by (3 feet/1 yard) × (60 seconds/1 minute) = 4.4 × 3 × 60 yards per minute = 792 yards per minute. Similarly, the boy's speed of 12 miles per hour can be converted to yards per minute by multiplying it by (5280 feet/1 mile) × (1 yard/3 feet) × (1 hour/60 minutes) = 12 × 5280/3/60 yards per minute = 1056 yards per minute.
To find out how much faster the fish swims than the boy, we subtract the boy's speed from the fish's speed: 792 - 1056 = -264 yards per minute. Therefore, the fish swims 264 yards per minute faster than the boy.
I will mark the correct answer as brainliest! A piece of fabric 180 inches long is cut in 2 pieces such that 3 times the larger piece is greater than 4 times the smaller piece. How large are the 2 pieces. Also please give details if possible
The length of the larger piece lies in the interval [102.85 , 180) and the length of the smaller piece lies in the interval [0 , 77.15]
What is an interval?In mathematics, a (real) interval is a set of real numbers that contains all real numbers lying between any two numbers of the set. For example, the set of numbers x satisfying 0 ≤ x ≤ 1 is an interval which contains 0, 1, and all numbers in between.
Given here, that 3 times the larger piece is greater than 4 times the smaller piece. let the length of the larger piece be x and length of the smaller piece be 180-x, then we get the following inequality-
3x > 4(180-x)
3x>720-4x
7x>720
x>102.85
therefore 102.85≤ x <180
Hence, the larger piece lies in the interval [102.85 , 180) and the length of the smaller piece lies in the interval [0 , 77.15]
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solve for x...........
If a=2b, then a-c=2b-c
Which graph represents f(x)=−2x4 ?
abcdefghijklmnopqrstuvwxyz
The graph of y = x⁴ is also a parabola that opens upward and it is an even function.
The blue graph represents a quadratic function and the red graph represents a biquadratic function.
What is a function?A function can be defined as the outputs for a given set of inputs.
The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.
We also know that graph of a quadratic function y = x² is a parabola,
Now, the graph of y = x⁴ will also be a parabola,
and it is more steeper or has a greater slope than the graph y = x² as the independent variable has a larger exponent value it is also an even function that is symmetric about the y-axis.
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Marcial found a recipe for fruit salad that he wanted to try to make for his birthday party. He decided to triple the recipe. a. What are the new amounts for the oranges, apples, blueberries, and peaches? The amount of rhubarb in the original
recipe is 3 1/2 cups. Using what you know of whole numbers and what you know of fractions, explain how you could triple that mixed number.
what is the mean? if the answer is a decimal, round to the nearest tenth
96. 94. 95. 89. 79
the total amount of money (in cents) in x nickels, (x+2) quarters, and 3x dimes. total amount is? please help!!!!
To find the total amount of money in nickels, quarters, and dimes, we need to add the value of each coin together. In this case, the total amount of money is represented by the expression 60x + 50 cents.
Explanation:To find the total amount of money, we need to determine the value of each coin in cents. A nickel is worth 5 cents, a quarter is worth 25 cents, and a dime is worth 10 cents.
The total amount of money in x nickels is 5x cents. The total amount of money in (x+2) quarters is 25(x+2) cents. The total amount of money in 3x dimes is 30x cents.
Adding these values together, we can find the total amount of money:
Total amount of money = 5x + 25(x+2) + 30x cents Now, simplify the expression:
Total amount of money = 5x + 25x + 50 + 30x cents
Total amount of money = 60x + 50 cents
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What is the area of rhombus ABCD?
Do not round at any steps
Ivan has 6 times as many blue beads as red beads. He has 4 red and blue beads in all. How many blue beads does Ivan have?
Coffee with sugar and milk added to it can contain up to calories.
The interior angles of a regular polygon each measure 165 degrees. how many sides does the polygon have
If a regular polygon has interior angles each measuring 165 degrees, the polygon has 24 sides. This is calculated by using the formula to find the number of sides in a regular polygon, given the angle size.
Explanation:To find out how many sides a regular polygon has, based on the size of its interior angles, you can use the formula to calculate the sum of the interior angles of a polygon:
n
= 180(
n
- 2), where
n
is the number of sides.
However, this formula gives the sum of the interior angles as a whole. Since, in a regular polygon, all angles are equal, you can then divide this sum by the known size of each angle.
So the specific formula to calculate the number of sides of a regular polygon, given the angle size, is:
n
= 360 / (180 -
angle size
).
In this case, you can substitute the angle size of 165 degrees into this formula:
n
= 360 / (180 - 165) = 360 / 15 = 24.
So a regular polygon with interior angles each measuring 165 degrees has 24 sides.
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