Answer:
sorry I don't get the question I am in MIDDLE school
Helllppppp me quick!!!!!!!
Answer:
F(x) =2x+3
Step-by-step explanation:
F(x) =2x+3...............
Answer:
[tex]consider : (0, 3) \: and \: (1, 5) \\ gradient = \frac{5 - 3}{1 - 0} \\ = 2 \\ from : \: y = mx + c \\ consider \: (0, 3) \\ 3 = (2 \times 0) + c \\ c = 3 \\ therefore \: equation \: is : \\ y = 2x + 3[/tex]
Find the side lengths of the triangle in this picture.
Answer:
Hypotenuse: 41 meters, Long leg: 40 meters, Short leg: 9 meters.
Step-by-step explanation:
According to the statement, we have the following information about the lengths of the right triangle:
Hypotenuse
[tex]3\cdot x + 14[/tex]
Long leg
[tex]3\cdot x + 13[/tex]
Short leg
[tex]x[/tex]
By the Pythagoric Theorem, we have the following expression:
[tex](3\cdot x + 14)^{2} = x^{2} + (3\cdot x + 13)^{2}[/tex] (1)
[tex]9\cdot x^{2}+84\cdot x + 196 = x^{2} + 9\cdot x^{2} + 78\cdot x + 169[/tex]
[tex]9\cdot x^{2} + 84\cdot x + 196 = 10\cdot x^{2} + 78\cdot x +169[/tex]
[tex]x^{2} -6\cdot x -27 = 0[/tex]
[tex](x-9)\cdot (x+3) = 0[/tex]
As length is a positive variable by nature, then the only possible solution is [tex]x = 9[/tex]. Lastly, the side lengths of the right triangle are:
Hypotenuse: 41 meters, Long leg: 40 meters, Short leg: 9 meters.
Prove the statement below directly from the definitions of the terms.
For all integers n, n2 + n +1 is odd.
Answer:
We know that:
If A is an even integer number, then A + 1 is an odd number
If B is an odd number, then B + 1 is an even number.
We also know that the product of two odd numbers is odd, and the product of two even numbers is even.
We want to prove that:
For all integers n, n^2 + n + 1 is odd.
We have two cases.
If n is even, then:
n^2 is the product of two even numbers, so is even.
n^2 + n is the sum of two even numbers, then it is even.
And:
(n^2 + n) + 1 is an even number plus one, so it is odd.
Now let's assume that n is odd.
n^2 is the product of two odd numbers, then n^2 is odd.
n^2 + n is the sum of two odd numbers, then it is even.
And similar as the previous case:
(n^2 + n) + 1 is an even number plus one, so it is odd.
Plz help its my last grade and i really need it to be good
Answer:
Option D
Step-by-step explanation:
[tex]60+45+75=180[/tex]
[tex]Triangle ~has ~the~ sum ~of ~angle =180[/tex]
--------------------------
hope it helps...
have a great day!!
Answer:
D will be your answer!!
Step-by-step explanation:
hope it helps
A can of soup has a diameter of 7 cm and a height of 9 cm. Assuming that
the can is full, what is the volume of soup contained in the can? Use 3.14 for
TT and round your answer to the nearest cubic centimeter.
(Soup
9 cm
7 cm
O A. 1385 cm
O B. 346 cm3
O C. 110 cm
O D. 198 cm3
Answer:
B. 346 cm3
Step-by-step explanation:
I took the quiz and got it right.
Answer:
B
Step-by-step explanation:
Milena walked 25.086 kilometers on Monday, 19.8 kilometers on Tuesday, and 7 kilometers on Wednesday. What was the total distance that Milena walked
A refrigerator is priced it at $525.50. There is a 6% sales tax rate. What is the sales tax for the refrigerator in dollar and cents?
Answer:
The sales tax for the refrigerator would be $31.53
Hope this helps!
Brainliest??
Answer:
Sales for refrigerator in dollar and cents is $31.53.
Step-by-step explanation
6/100 X $525.50 =
0.6 X $525.50 = $31.53.
Can someone help me I am stuck on this question it would mean the world if u helped me! and TYSM! for the people who helped me have a wonder full day!
Answer:
1.25 gallons of orange juice needed
Step-by-step explanation:
2(3/4)=3/2 cups per 1 person
24 x 3/2=36 cups for everyone
36 cups=18 pints
18-8=10 pints of orange juice
10 pints = 1.25 gallon
Answer:
1.25 gallons of orange juice
Step-by-step explanation:
24x2=48
3/4x48=36
36 cups into pints is 18 pints
18-8=10
10 pints into gallons is 1.25 gallons
Classify the following triangle. Check all that apply.
A
I A. Equilateral
B. Right
C. Acute
I D. Isosceles
O E Obtuse
O F. Scalene
Answer:
A and C
Step-by-step explanation:
The triangle given has three equal sides and three equal angles.
Since the sum of a triangle = 180°, therefore, each angle equals 60°
Thus, we can conclude that the triangle is an acute triangle because an acute triangle has all three sides measuring less than 90°. This implies that all it's angles are acute angles.
Also, since all its sides are equal and the same as well as it's three angles, based on this, we can equally say the triangle is an equilateral triangle.
The triangle can be referred to as an acute triangle and also as an equilateral triangle.
Kiera's dance class starts at 4:30pm and ends at 6:15 pm how long is her dance class
A store sells small notebooks for $8 and large notebooks for $16. If a student buys 6 notebooks and spends $80, how many of each size did he buy?
Answer:
Small-6
Large-2
Step-by-step explanation:
small-$8
large-$16
$8×6=$48
$80-$48=$32
32÷16=2(large)
helpppppppppppppp meeeeeeeeeeeeeeeeeeeeeeeeeee
Answer:
Area of a circle= π r square
22/7 × 6 ×6
22/7×36
= 792/7
=113.40
Find the length of chord AB. Assume the graph is scaled by ones. Give exact and
approximate answers. Round to the nearest hundredth.
O sqrt(34); 5.83 units
O sqrt(24): 4.90 units
O sqrt(26): 5.10 units
O sqrt(10): 3.16 units
Answer: Choice C
exact length = sqrt(26) units
approximate length = 5.10 units
=======================================================
Work Shown:
We can use the distance formula.
A = (x1,y1) = (2,2)
B = (x2,y2) = (1,-3)
[tex]d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(2-1)^2 + (2-(-3))^2}\\\\d = \sqrt{(2-1)^2 + (2+3)^2}\\\\d = \sqrt{(1)^2 + (5)^2}\\\\d = \sqrt{1 + 25}\\\\d = \sqrt{26}\\\\d \approx 5.0990195\\\\d \approx 5.10\\\\[/tex]
The distance from A to B is exactly sqrt(26) units which approximates to 5.10 units. This distance represents the length of chord AB.
ILL MARK BRAINLIEST!
Which of these points lies on the graph of the equation x – 9 = y?
A. (3, 6)
B. (2, 11)
C. (-3,-6)
D. (-2, -11)
Answer:
D. (-2, -11)
Step-by-step explanation:
Since -2 - 9 = -11, it fits into the equation x - 9 = y, with -2 being "x" and -11 being "y".
And out of all the options, D is the only one that works.
Which one of the following is an ordered pair?
{-3, 5}
(2, 4, 0)
(0, 6)
1, 3
9514 1404 393
Answer:
(c) (0, 6)
Step-by-step explanation:
Conventionally, an "ordered pair" is a pair of items in parentheses, separated by a comma. The items don't have to be numbers. (0, 6) is an ordered pair.
__
Comments on the other answer choices
Curly braces are usually used as delimiters of a set, not an ordered pair.
Three items do not constitute a "pair." Rather, they are a "triple."
Items without any particular indicator of grouping are usually not considered a "pair."
I can’t seem to find the value of n in this peoblem
Answer:
9
Step-by-step explanation:
you can always use guess-and-check:
124 seems rather high
(6)P(2) = 6!/4! = 6x5 ≠ 72
(9)P(2) = 9!/7! = 9x8 = 72
Answer:
i think the value of n is 12
someone please explain they didnt tell me bout this im just a middle schooler
Answer:
r=4.5, d=9
Step-by-step explanation:
So, lets go over two things.
#1 - What is Diamater?
Diamater is the distance from one side of a circle to the other.
#2 - What is radius?
Radius is the distance from any side of the circle, to the middle. This is half of the diamater.
In this case, the distance from one side of the circle to the other is 9in.
So the diamater must be 9.
d=9 in
Since we know the radius is half of the diamater, radius is:
9/2
=
4.5 in
So our radius must be 4.5.
r=4.5
This looks like the top answer.
Hope this helps! :D
Scarecrow and the Tin Man are walking in a field toward Emerald City! When they start walking, Scarecrow is 25 meters away and Tin Man is 40 meters away. Scarecrow is walking at a rate of 5 meters per minute and Tin Man is walking at a rate of 10 meters per minute. After how many minutes will Scarecrow and Tin Man be the same distance from Emerald City? What are two equations to solve this problem?
Answer:
3 minutesStep-by-step explanation:
Required equations are:
d = 25 - 5x andd = 40 - 10xSince d is same for both, we substitute d and solve for x:
25 - 5x = 40 - 10x10x - 5x = 40 - 255x = 15x = 3They will be at same distance after 3 minutes
Time be x distance be y
y=25-5xy=40-10xSolve for x
25-5x=40-10x5x=40-255x=15x=3minplease help, this is urgent!
Quadrilateral WXYZ will be rotated 180° about the origin and then reflected across the y-axis.
W (-7,-2)
X (-4,-2)
Z (-6,-6)
Y (-3,-7)
Choose all of the statements about the quadrilateral and/or the the transformed quadrilateral that are correct.
A. The quadrilaterals will be congruent
B. The Quadrilateral will map onto itself
C. The quadrilateral will now appear in Quadrant 2
D. The quadrilaterals will have the same orientation
E. The quadrilaterals will be similar but not congruent
Answer: the answer is W (-7, -2)
Step-by-step explanation:
Pls helppp I’ll mark u brainliest
Answer:
I believe the answer to this question is (4,1)
(x2 + 5x +4) × (x + 4)
׳+9x²+24×+16 ...............
find the common difference of the arithmetic sequence 3, -2, -7
Answer:
-5
Step-by-step explanation:
To find the common difference, take the second term and subtract the first term
-2 - 3 = -5
Check with the third term and the second term
-7 - (-2) = -7 +2 = -5
The common difference is -5
Maggie bought c CDs for $12 each, b books for $7 each, and a purse costing $24.
a. Write an expression to show the total amount of money Maggie spent.
b. If Maggie bought 4 CDs and 3 books, how much money did she spend?
Answer:
b. (4×12)+(3×7)
48+21= 69
she spent $69
Please, help meeeeee
Answer:
y = 500x + 1000
Step-by-step explanation:
The standadrd equation of a line is expressed as y = mx+b
m is the slope
is the y-intercept
Using the coordinate points (0, 1000) and (6, 4000)
Slope = y2-y1/x2-x1
Slope = 4000 - 1000/6-0
Slope m = 3000/6
Slope m = 500
Since the line cut the y axis at y = 1000, hence the intercept b = 1000
Get the required equation;
Reall that y = mx+b
y = 500x + 1000
The "freshman 15" is the name of a common belief that college students, particularly women, gain an average of 15 pounds during their first year of college. In one study of 110 female first‐year college students (Psychology of Women Quarterly, vol 17, pp.119‐126, 1993), the mean weight was 130.6 pounds at the beginning of the study and 131.4 pounds six months later. The standard deviation was about 20 pounds at each time.
Required:
a. Estimate the change in the mean weight over this six‐month period.
b. Is this sufficient information to find a confidence interval or conduct at estimate about the change in the mean over six months? If not what else do you need to know?
Answer:
A) - 0.8 Ibs
B) There isn't enough information
The standard deviations of the difference scores is needed
Step-by-step explanation:
N = 110 female first year college students
Mean weight at beginning of study = 130.6 Ib
Mean weight after six ( 6 ) months = 131.4 Ib
standard deviation = 20 pounds
A) Determine the change in the mean weight over the six(6) months period
mean weight at beginning - mean weight after six(6) months
= 130.6 - 131.4
= -0.8 Ibs
B) Determine if there is sufficient information to find a confidence interval
There isn't sufficient information to determine the confidence interval but in other to determine the confidence interval or conduct an estimate You need standard deviations of the difference scores to calculate the standard error of mean
The ages of registered voters in Smith County are normally distributed with a population standard deviation of 3 years and an unknown population mean. A random sample of 18 voters is taken and results in a sample mean of 55 years. Find the margin of error for a 95% confidence interval for the population mean. 20.01 20.10 1.282 20.05 1.645 20.025 1.960 20.005 2.576 2.326 You may use a calculator or the common z values above. • Round the final answer to two decimal places.
Answer:
The margin of of error for a 95% confidence interval for the population mean is of 1.39 years.
Step-by-step explanation:
We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:
[tex]\alpha = \frac{1 - 0.95}{2} = 0.025[/tex]
Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].
That is z with a pvalue of [tex]1 - 0.025 = 0.975[/tex], so Z = 1.96.
The margin of error is:
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.
Population standard deviation of 3 years
This means that [tex]\sigma = 3[/tex]
Sample of 18 voters
This means that [tex]n = 18[/tex]
Margin of error:
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
[tex]M = 1.96\frac{3}{\sqrt{18}}[/tex]
[tex]M = 1.39[/tex]
The margin of of error for a 95% confidence interval for the population mean is of 1.39 years.
Find the length of a to the nearest tenth using the Pythagorean theorem
Answer:
Ab^2 = CA^2 + BC^2
8^2 = 6^2 + a^2
64 = 36 + a^2
64-36 = a^2
28 = a^2
square root of 28 = square root of a^2
5 ,29 = a
5 = a
What is the radius of
this cylinder if the
volume is 75.4 in^3 and
the height is 6 inches
Answer:
Radius of cylinder = 2 inch (Approx.)
Step-by-step explanation:
Given:
Volume of cylinder = 75.4 in³
Height of cylinder = 6 inches
Find;
Radius of cylinder
Computation:
Volume of cylinder = πr²h
Volume of cylinder = (3.14)r²(6)
75.4 = (18.84)r²
(Radius of cylinder )² = 75.4 / 18.84
(Radius of cylinder )² = 4.002123
(Radius of cylinder) = 2
Radius of cylinder = 2 inch (Approx.)
Question 12: Angle M and Angle P are what type of angles?
m
n
o
Р
qr
st
adjacent
right
obtuse
O vertical
Answer:
adjacent anf o vertical
Step-by-step explanation:
Determine the area of this triangle...
Answer:
650,000 cm²
Step-by-step explanation:
10x6.5=65 METERS squared. They want it in CENTIMETERS squared.
65m² = 650,000cm²
Answer:
32.5[tex]m^{2}[/tex]
Step-by-step explanation:
The coloured triangle with the blank triangle area =
(14m x 6.5m)÷2 = 45.5[tex]m^{2}[/tex]
The blank triangle area =
[(14-10m) x 6.5m]÷2 = 13[tex]m^{2}[/tex]
Therefore:
The coloured triangle area =
(45.5 - 13)[tex]m^{2}[/tex]
=32.5[tex]m^{2}[/tex]