Answer:
They are SAS congruent.
Step-by-step explanation:
I need help, please. PLEASE, I NEED IT FAST.
Answer:
Hint: x is a negative number.
Step-by-step explanation:
The equation is x + 12 = -6 and you are trying to find x. The easiest way to solve this equation is by first subtracting 12 from both sides. It would look like x + 12 - 12 = -6 - 12. Since positive 12 and negative 12 are opposite and equal, they cancel each other out. This can be drawn as well into circles and crossed out for every positive circle with a negative circle. As for -6 and -12, you can use the same method of drawing circles, (trust me they can be very helpful, especially for people like me who need to see it visually before getting a hang of it). Since both are negatives, you would have to add them together and that would give you x.
(Please reply if you still have questions. :) Have a wonderful day)
A photographic negative is 2 in. by 1.5 in. An
enlarged print from this negative has a length
of 9 in. as its shorter side. What is the length of
its longer side?
Answer:
The length of the longer side is 12 in
Step-by-step explanation:
Scaling
The dimensions of the photographic negative are 2 in by 1.5 in.
An enlarged print of it has a length of 9 in and it's equivalent to the shortest side.
Since the shortest side of the negative is 1.5 in, the scale factor is 9/1.5 = 6.
The longer side should have been enlarged by the same factor, thus the longer side is 2*6 = 12 in
The length of the longer side is 12 in
write the equation of a quadratic function that contains the points (1,21), (2,18), and (-1,9)
Answer:
The equation of a quadratic function that contains the points (1, 21), (2,18) and (-1, 9) is [tex]y = -3\cdot x^{2}+6\cdot x +18[/tex].
Step-by-step explanation:
A quadratic function is a second order polynomial of the form:
[tex]y = a\cdot x^{2}+b\cdot x + c[/tex] (1)
Where:
[tex]x[/tex] - Independent variable.
[tex]y[/tex] - Dependent variable.
[tex]a[/tex], [tex]b[/tex], [tex]c[/tex] - Coefficients.
From Algebra we understand that a second order polynomial is determined by knowing three distinct points. If we know that [tex](x_{1}, y_{1}) = (1, 21)[/tex], [tex](x_{2},y_{2}) = (2,18)[/tex] and [tex](x_{3}, y_{3}) = (-1, 9)[/tex], then we construct the following system of linear equations:
[tex]a+b+c = 21[/tex] (2)
[tex]4\cdot a + 2\cdot b + c = 18[/tex] (3)
[tex]a - b + c = 9[/tex] (4)
By algebraic means, the solution of the system is:
[tex]a = -3[/tex], [tex]b = 6[/tex], [tex]c = 18[/tex]
Therefore, the equation of a quadratic function that contains the points (1, 21), (2,18) and (-1, 9) is [tex]y = -3\cdot x^{2}+6\cdot x +18[/tex].
May someone tell me if I’m correct cause I think I’m right but I need to double check with someone thanks
Answer: Proportional
Step-by-step explanation: Any table that starts with (0,0), it means it’s proportional!
Here is a list of numbers:
5.2, 8, 8.2, 6.4, 8.3, 3.4, 9.6 ,0.3,3,3,5.5
State the median
Answer:
5.5 is the answer
:)
Step-by-step explanation:
HELP MATH ASAP! MARKING BRANLIST
Answer:
-4/3
Step-by-step explanation:
Use the slope formula:
[tex]\frac{y2-y1}{x2-x2}[/tex]
-4 - 12/ 13 - 1
-16/12
Simplifies to -4/3
Which equation gives the line shown on the graph?
y
10
9
8
7
6
5
3
2
1
х
0
0 1 2 3 4 5 6 7 8 9 10
The equation of the line in the given graph, in slope-intercept form, is determined as: y = 1/2x + 4.
What is the Equation of a Line?In slope-intercept form, we can express the equation of a line as, y = mx + b, where, m is the slope and b is the y-intercept of the graph.
Slope of the line (m) = change in y /change in x = 1/2
Y-intercept (b) = 4
Substitute m = 1/2 and b = 4 into y = mx + b:
y = 1/2x + 4
The equation of the line is: y = 1/2x + 4.
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Pls help me on number 10 plsss I’ll give brainlest
Answer:
Step-by-step explanation:
0 10
1 21
2 32
3 43
i donno if thats what you wanted
Answer:
0 43 turns into 1 44
1 32 2 33
2 21 3 22
3 10 4 11
Step-by-step explanation:
Find the area of each figure for questions 7 and 8
Please Answer!
Answer:
56ft2 in
Step-by-step explanation:
Whats the vaule of 1.8
Answer:
c
Step-by-step explanation:
because -1.8is tennecally the oposites but it hase the same number so i think its c
Pls help I will give 10 points :((((
I will be reporting people who don’t know :)
Answer: D, 180 - 130
What is the missing polynomial?
?-(20-4x-5x^2) =20-7x^2
PLEASE HURRY!!! 20 points!!!
Answer:
30
Step-by-step explanation:
A new car loses 18% of its value in a year. At a year old, it is worth
£12,505. How much was it worth when new?
Hint: Losing 18% means the new value is 82% of the original value.
Answer:
11,155
Step-by-step explanation:
Combine any like terms in the expression. If there are no like terms, rewrite the expression.
6v+6v+3v
Answer: 15v
Step-by-step explanation: we can combine all the terms since they all have “v” in them making 6+6+3 which is 15, just add “v” to get 15v
The figure below is a scale drawing of an office courtyard using the scale 1 centimeter = 4 feet? ( Couldn't fit this in the picture, this is at the top above everything else for the first drawing shown.)
Which figure is a scale drawing of the same courtyard using the scale 1 centimeter = 3 feet?
Answer:
the answer is D
Step-by-step explanation:
they divided
Answer:
It's actually B.
Step-by-step explanation:
Divide the numbers on the scale drawing by 3. 75 divided by 3 equals 25, 51 divided by 3 equals 17, 30 divided by 3 equals 10, and 72 divided by 3 equals 24. Letter B has all of those answers.
Camilla, Lincoln and Ella sat a French test. The test was marked out of 200 Camilla got 4/5 of the 200 marks. Lincoln got 44% of the 200 marks. Ella got 198 out of 200 marks. Who got the highest mark?
Answer: Ella got the highest mark
Step-by-step explanation:
camilla got 160/200 because 200 divided by 5 = 40
lincoln got 88/200 because 44% of 200 is 88
ella got 198/ 200
I need help with all 4 of these
is these a function or not a function
what is the answer to this -3n -7 + (- 6n ) + 1
Answer:
-9n-6
Step-by-step explanation:
sm
Answer: Solution
3n+(-6n)-6
Step-by-step explanation:
I need this pls helpp
Answer:
m∠7 = 63 degrees
m∠8 = 117 degrees
m∠9 = 63 degrees
Step-by-step explanation:
When two lines intersect at a point, then they formed 2 pairs of vertically opposite angles and 4 pairs of linear angles
The vertically opposite angles are equal in measuresThe linear angles have a sum of 180°In the given figure
∵ There are two lines intersected at a point
∴ The angle of measure 117° and ∠8 are vertically opposite angles
∴ ∠7 and ∠9 are vertically opposite angles
∴ The angle of measure 117° and ∠7 are linear angles
∵ The vertically opposite angles are equal in measures
∴ The angle of measure 117° and ∠8 are equal in measures
∴ m∠8 = 117°
∵ The sum of the measures of the linear angles is 180°
∴ m∠7 + 117° = 180°
→ Subtract 118 from both sides
∵ m∠7 + 117 - 117 = 180 - 117
∴ m∠7 = 63°
∵ m∠7 = m∠9 ⇒ proved up
∴ m∠9 = 63°
Need help on this question
Answer:
10 units.
Step-by-step explanation:
In order to solve this, we first need to know the distance of the points by using rise and run. Then we will be able to find the hypotenuse. This is pretty much gonna make a triangle.
Run = 6
Rise = 8
We can use Pythagorean Theorem to solve for the hypotenuse since this forms a right triangle.
6² + 8² = c²
36 + 64 = c²
100 = c²
10 = c
Therefore, the distance between the two points is 10 units.
Answer:
10
Step-by-step explanation:
[tex]8^{2}[/tex] + [tex]6^{2}[/tex] = [tex]\sqrt{100}[/tex] = 10
Evaluate a−b if a=−2.5 and b=2/5 . Write your answer in simplest form.
Answer:
0
Step-by-step explanation:
2.5=2/5 so 2.5-2/5=0
.
HELP ASAP ITS EASY BUT IM BLANKING AND ITS 20 POINTS PLUS BRAINLIEST
This table shows values that represent an exponential function.
what is the average rate of change for this function for the interval from x=2 to x=4?
Answer:
Subtract the two Y values of X = 2 and X = 4 to find the total difference, then divide by the difference between X=2 and X =4
When X = 2 Y = 9
When X = 4 Y = 64
Difference between the two Y values = 64 -9 = 55
Difference between the two X values = 4-2 = 2
The rate of change = difference in Y divided by difference in X:
55/2 = 27.5
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
How many 3/4s are in 2 ?
1 .Write a multiplication equation and a division equation that can be used to answer the question.
2.Draw a tape diagram and answer the question. Use the grid to help you draw, if needed.
Answer:
3/4 into decimal = 0.75
0.75 X 100 = 75
2 X 100 = 200
200/75 = 2.66666666
1
2
3
4.
5
6
7.
8
9
10
4
The volume of a sphere is 36 ft. What is the radius of the sphere? Use the formula V = ar to find your
3
answer.
The radius of the sphere is
feet.
Answer:
Radius of sphere = 3 feet
Step-by-step explanation:
The volume of sphere is 36 π ft³.
We need to find the radius of sphere.
The formula used is: [tex]Volume\:of\:sphere=\frac{4}{3}\pi r^3[/tex]
Putting value of volume and finding radius
[tex]Volume\:of\:sphere=\frac{4}{3}\pi r^3\\36\pi =\frac{4}{3}\pi r^3\\r^3=36 \pi \times \frac{3}{4\pi} \\r^3=9 \times 3\\r^3=27\\Taking\:cube\;root\:on \:both\:sides\\\sqrt[3]{r^3}=\sqrt[3]{27}\\r=3[/tex]
So, Radius of sphere = 3 feet
The area of a circular mouse pad is 64 square inches. Use 3.14 for 7. Estimate its radius to the nearest integer.
Answer:
about 4.52
Step-by-step explanation:
Since pi times radius squared is the formula for area, you would first divide 64 by 3.14 to get about 20.4. Then since you square the radius, you would do the opposite and find the square root which is about 4.52.
I need help with this
Answer:
7/3
Step-by-step explanation:
Use keep change flip
7×3=21 9×1=9
21/9=7/3
[tex]\frac{7}{9}[/tex]
Remember the rule for dividing fractions, keep, change, flip.
Keep the first fraction, change the division sign to a multiplication sign, flip the 2nd fraction, or find the reciprocal of the second fractions.
[tex]\frac{7}{9}[/tex]÷[tex]\frac{1}{3} = \frac{7}{9} * \frac{3}{1} = \frac{21}{3} = 7[/tex]
Select all that apply.
If there are 12 girls and 15 boys in a class, which ratios are true?
3 girls to 5 boys
5 boys to 9 students
12 girls to 27 students
15 boys to 12 girls
Answer: 12 girls to 27 students
5 boys to 9 students
15 boys to 12 girls
HOPE THIS HELPS
CAN U PLEASE GIVE ME BRAINLIEST
the first person to answer thess right will get brainliest :) In a standard deck of cards, there are thirteen different cards: Ace, King, Queen, Jack, nine, eight, … and two. There are 4 cards of each kind as there are 4 different suits: Hearts, Spades, Clubs, and Diamonds. a. What is the probability that I draw a 4? b. P (Queen of Hearts) c. P (King) d. What is the probability that I draw a card less than 4? e. P (Spade) f. P (Queen or 3) g. P ( Face Card)
Answer/Step-By-Step Explanation:
A). 4/52 —> 1/13
B). 1/52 (there’s only one Queen of Hearts)
C). 4/52 —> 1/13
D). 8/52 —> 2/13 (cards less than 4 are 2 and 3).
E). 13/52 —> 1/4
F). 8/52 —> 2/13 (probability of choosing a queen is 4/52, probability of a 3 is 4/52).
G). 12/52 —> 3/13
The pie chart represents the proportion of how Colin spent the £900 he took on holiday all values are in degrees workout how much he spent on each category
Answer:
£180,£540 and £180
Step-by-step explanation:
Looking at the information presented, we don't have the percentages given neither do we have the items bought
However, let's say the money was spent on drinks, hotel reservations and food.
20% on food
60% on hotel reservations and
20% on transportation
We can now compute the individual cost of the a amount spent on each category from their percentage
For food
=20/100*900
=0.2*900
=180
Hotel reservations
=60/100*900
=0.6*900
=540
Foe transportation
=20/100*900
=0.2*900
=180
So, if you have your data, only follow the steps above and you will get your answers
To check, when we add all the amounts together they should sum up to 900
180+540+180=900
Which way of devising a yearly savings plan to pay for your college education makes the most sense?
A.) Save $10 this year, $20 the following year, $30 the following year, and so on.
B.) Estimate the total cost and divide that by the number of years until you go to college.
C.) Estimate the total cost and subtract the number of years remaining before you go to college.
D.) Estimate the total cost and multiply that by the total number of years before you go to college.
Answer:
Step-by-step explanation:
The answer is B.
The correct way of devising a yearly savings plan to pay for college education makes the most sense is,
''Estimate the total cost and divide that by the number of years until you go to college.''
Option B is true.
What is mean by expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
We have to given that;
To find the way of devising a yearly savings plan to pay for your college education makes the most sense.
Hence, We know that;
The correct way of devising a yearly savings plan to pay for college education makes the most sense is,
Estimate the total cost you have and divide that by the number of years for college time until you go to college.
Thus, correct way of devising a yearly savings plan to pay for college education makes the most sense is,
''Estimate the total cost and divide that by the number of years until you go to college.
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