Answer:
11
Step-by-step explanation:
2v = 47-25
2v = 22
v = 11
M is the midpoint of AB and MB=50
Answer:
What we have to find?
.....
Solve the simultaneous equations
5x-y=5
2y-x²=11
YOU MUST SHOW YOUR WORKING
Answer:
Correct Equations:-[tex]\sf 5x-y=5 \\ \sf 2y-x=11 [/tex]
solution:-[tex]\sf 5x-y=5\dots\dots(1)[/tex]
[tex]\sf -x+2y=11 \dots\dots (2)[/tex]
We use elimination method By multiplying eq (1) by 2 and eq (2) by 1 we get[tex]{:}\longrightarrow[/tex][tex]\sf 10x-2y=5\dots\dots(3)[/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf -x+2y=11\dots\dots (4)[/tex]
______________________Add eq (3) and eq (4)[tex]{:}\longrightarrow[/tex][tex]\sf 4x=16 [/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf x={\dfrac {16}{4}}[/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf x=4 [/tex]
Substitute the value in eq (2)[tex]{:}\longrightarrow[/tex][tex]\sf -4+2y=11[/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf 2y=11+4 [/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf 2y=15 [/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf y={\dfrac {15}{2}}[/tex]
[tex]\therefore[/tex][tex]\sf (x,y)=(4,{\dfrac {5}{2}})[/tex]
Answer:
(3, 10 ) and (7, 30 )
Step-by-step explanation:
Given the 2 equations
5x - y = 5 → (1)
2y - x² = 11 → (2)
Rearrange (1) expressing y in terms of x
y = 5x - 5 → (3)
Substitute y = 5x - 5 into (2)
2(5x - 5) - x² = 11
10x - 10 - x² = 11 ← rearrange into standard form
x² - 10x + 21 = 0 ← in standard form
(x - 3)(x - 7) = 0 ← in factored form
Equate each factor to zero and solve for x
x - 3 = 0 ⇒ x = 3
x - 7 = 0 ⇒ x = 7
Substitute these values into (3) for corresponding values of y
x = 3 → y = 5(3) - 5 = 15 - 5 = 10 ⇒ (3, 10 )
x = 7 → y = 5(7) - 5 = 35 - 5 = 30 ⇒ (7, 30 )
What is the image of (-7,5) after a diliation by a scale factor of 2 centered at the origin?
Answer:
The dilation (centered at O with a scale factor of 2) of ΔABC = ΔA'B'C' making ... After a dilation, the pre-image and image have the same shape but not the same size. ... 5. distance is NOT preserved (lengths of segments are NOT the same in all ... of dilation (-4,-9), move 16 units up and 4 units to the right to find C' at (0,7).
Step-by-step explanation:
hope this helps
If th3 coordinate point is dilated by a factor of 2, then the resulting coordinate will be at (-14, 10)
Given the coordinate point (x, y), if this coordinate is dilated by a factor "k", the resulting coordinate will be at (kx, ky)
Note that each of the coordinates was multiplied by a scale factor
For the given coordinate (-7, 5), if this coordinate point is dilated by a factor of 2, then the resulting coordinate will be at (-14, 10)
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Which equation in slope-intercept form has a graph that passes through
the point (-3,6) and has a slope of 2 ?
Answer:
Step-by-step explanation:
y - 2 = 2(x + 3)
y - 2 = 2x + 6
y = 2x + 8
Which number is greater than the absolute value of − 3 8 ?
Answer: i have no idea what number you tried to say but here are a few options for what it could be...
the absolute value of -3 is 3
the absolute value of 8 is 8
the absolute value of -3/8 is 3/8
the absolute value of -38 is 38
Step-by-step explanation:
absolute value means how far the number is from zero, it does not take into account whether the number is positive or negative
amy is 3 years older than beth and five years younger thrn jo. if beth is b years, how old is jo, in terms of b.
What is the solution to this equation?
–0.2(x – 20) = 44 – x
Answer: x=50
Step-by-step explanation:
Use the distributive property to multiply -0.2 by x-20.
-0.2x+4=44-x
Add x to both sides.
-0.2x+4+x=44
Combine -0.2x and x to get 0.8x.
0.8x+4=44
Subtract 4 from both sides.
0.8x=44-4
Subtract 4 from 44 to get 40.
0.8x=40
Divide both sides by 0.8.
x=40/0.8
Expand 40/0.8 approx 50 by multiplying both numerator and the denominator by 10.
X=400/8
Divide 400 by 8 to get 50.
x=50
If m = 50, what is the value of the expression below?
0.44m + 23
A. 22
B. 45
C. 67
D. 117
SHOW YOUR WORK PLZSSSSSSSS
Answer:
B. is your answer dear
Step-by-step explanation:
0.44*50+23
22+23 = 45
hope you got it.
Lucia invests $5000 at a rate of 4.5% per year compound interest. Calculate the value of her investment at the end of 7 years.
The value of her investment at the end of 7 years is $11804
How to determine the value?The given parameters are
Principal, P = $5000
Rate, r = 4.5%
Time, t = 7 years
The value is then calculated as:
Value = P * P(1 + r)^t
So, we have:
Value = 5000 + 5000 * (1 + 4.5%)^7
Evaluate the expression
Value = 11804
Hence, the value of her investment at the end of 7 years is $11804
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50 POINTS! ONLY ANSWER IF KNOW! PLEASE HELP! CAPTURE BELOW
Answer:
84
It took a while
13/10 start fraction, 13, divided by, 10, end fraction of a number is what percentage of that number?
Answer:
1.3??
Step-by-step explanation:
Answer:
130%
Step-by-step explanation:
Let x be the unknown number.
of the unknown number = [tex]\frac{13}{10}[/tex] [tex]x^{}[/tex]= 1.3x
We need to find the [tex]\frac{13}{10}[/tex] of a number is what percent of that number.
%=[tex]\frac{new value}{Inital Value}[/tex] x 100
Substitute 1.3x for new value and x for initial value in the above formula.
%=[tex]\frac{1.3x}{x}[/tex]x 100
Cancel out the common factors.
%= 1.3 x 100
%= 130
Therefore, [tex]\frac{13}{10}[/tex] of a number is 130% of that number.
What is the value of g(-4)?
The value of g(-4) is 1. The correct option is C
What is a Piece-Wise Function?A function that has a different sub-function for different intervals of the domain is called Piece-Wise Function
The functions for the different interval is
g(x)= [tex]\rm \sqrt[3]{x+5}[/tex] , x ≤ -4
= -x² +11 , x > -4
The value of g(-4) will be determined by using g(x)= [tex]\rm \sqrt[3]{x+5}[/tex]
Substituting the value x = -4
g(x) = [tex]\rm \sqrt[3]{-4+5}[/tex]
g(x) = ∛1
g(x) = 1
Therefore, The value of g(-4) is 1. The correct option is C
To know more about piece-wise function
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write down the cordinates of the point where the line with the equation is y=3x-5 crosses the y axis
Answer:
(0, -5)
Step-by-step explanation:
The answer is in the equation you gave for the line. In the formula for the equation of a line, y = mx + b, b is the y-intercept, and since because the y-intercept is shown in a graph in the form of (0,b), the answer is (0, -5).
PLEASE HELPPP!!!! When Jason came to school he said he was the imposter in three of the sixteen games he played. Claire said she was the imposter in one-fourth of the games he played.
Who was the imposter more often?
Answer: Claire
Jason = 3/16
Claire = 4/16
Step-by-step explanation:
1/4 x 16 = 4
4/16
i dont know how to find x
Answer:
not enough info, make another question with the problem attached
Step-by-step explanation:
After accelerating for 20 seconds, a DeLorean sports car has a wide range of speeds that it can achieve, depending on traction. The distribution of speed follows an approximately normal distribution with a mean of 80 mph and a standard deviation of 7 mph. What percentage of the trials will give the DeLorean a speed between 66 mph and 87 mph?
Answer:
81.859%
Step-by-step explanation:
We solve the question using z score formula
z = (x-μ)/σ, where
x is the raw score
μ is the population mean = 80 mph
σ is the population standard deviation = 7 mph
For x = 66 mph
z = 66 - 80/7
z = -2
Probability value from Z-Table:
P(x = 66) = 0.02275
For x = 87 mph
z = 87 - 80/7
z = 1
Probabilith value from Z-Table:
P(x = 87) = 0.84134
The probability of the trials will give the DeLorean a speed between 66 mph and 87 mph is calculated as:
P(x = 87 mph) - P(x = 66 mph)
0.84134 - 0.02275
= 0.81859
The percentage of the trials will give the DeLorean a speed between 66 mph and 87 mph?
100 × 0.81859
81.859%
Middle School
Mathematics
Find x.
A. 8
B. 12
Answer:
17²=15²+x²
289=225+x²
288-225=x²
64=x²
x=6
Answer:
8
Step-by-step explanation:
By Pythagoras theorem,
(hypotenuse)² = (altitude)² + (base)²
(17)² = x² + (15)²
(17)² - (15)² = x²
289 - 225 = x²
x² = 64
x = √64
x = 8
hope this helps you!
what is 24% as a fraction?
24
___
100
yesssa above is right
Answer: 6/25 or 0.24! :)
What number is missing in this equation?
(-8.7) • (-10) = ?
18.7
-18.7
87
-87
Answer:
C. 87Step-by-step explanation:
(-8.7) • (-10) = 8.7 • 10 = 87Correct option is C
Answer:
87
Step-by-step explanation:
Please help!
Find all the missing angles ??
Answer:
A 62°
B 118°
C 62°
D 118°
E 50°
F 58°
G 120°
H 120°
I 120°
J 60°
K 60°
L 60°
M 120°
N 120°
O
P 60°
Q 35.5°
R 49°
S 35.5°
T 109°
U 71°
V 109°
W 60°
lol help please! y=?x+?
Answer:
y= 1/2x + -3
Step-by-step explanation:
it starts at -3, and climbs by 1/2 points every time. (remember, 1/2 can be read as rise/run. Rise one, run 2)
Priya has a recipe for banana bread. She uses 7 1/2 cups of flour to make 3 loaves of
banana bread.Andre will follow the same recipe but only wants to make one loaf of
bread. How much flour will Andre use?
Answer:
2 1/2 cups of flour
Step-by-step explanation:
Priya is making 3 loaves of bread, so she will use 7 1/2 cups of flour.
Andre is making 1 loaf of bread, which is 1/3 the amount of loaves Priya is making. So, he will be using 1/3 the amount of flour Priya is using. So all we have to do is take 7 1/2 and divide it by 3:
7.5/3 = 2.5
Andre will use 2 1/2 cups of flour.
2.
The bus is 33.5 feet long. The city train is 45.9 feet longer than the bus. How long
is the city train?
Answer:
88.4
Step-by-step explanation:
33.5 + 45.9 = 88.4
The length of the city train is 79.4 feet.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Length of the Bus = 33.5 feet.
Length of the City train:
= Length of the Bus + 45.9
= 33.5 + 45.9
= 79.4 feet.
Thus,
The city train is 79.4 feet.
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write an equation in slope-intercept form for the line with slope -3/5 and y-intercept -2. :))
Answer:
Step-by-step explanation:
Given m=-3/5 ; c = -2
y =mx + c
y= (-3/5)x -2
If n ∥ m, which of the following statements are true? Select all that apply.
Answer:
c
Step-by-step explanation:
becuase 20+60 is 80
Los ingresos de una familia son el sueldo del padre de $ 560.400 y el aporte del hijo mayor de $280.600. El 34% de estos ingresos se destinan al pago del arriendo de la casa y el 50% de lo restante corresponde al costo de la alimentación de la familia.
1.- ¿Cuánto gasta esta familia en alimentación?
2.- ¿Qué porcentaje de los ingresos corresponden a los gastos de alimentación?
Answer:
ITS SPANISH ENGLSIH PLEZ
Step-by-step explanation:
help please 6th grade math foolish answers will be reported i will give brainliest
9514 1404 393
Answer:
7 square feet per student
Step-by-step explanation:
To find "A per B", divide the quantity of A by the quantity of B. It can help to keep the units with the numbers.
Here, you want area per student, so divide area by students:
area per student = (357 ft²)/(51 students) = 7 ft²/student
The relationship is 7 square feet per student.
help please. it's urgent
Given that polygon ABCD≅ polygon EFGH, identify the congruent corresponding part for CD¯¯¯¯¯.
Answer:
Create a single variable linear equation that has no solution. Solve the equation algebraically to prove that it does not have a solution.
Create a single variable linear equation that has one solution. Solve the equation algebraically to prove that there is one distinct solution for the equation.
Create a single variable linear equation that has infinitely many solutions. Solve the equation algebraically to prove that there is an infinite number of solutions for the equation
Step-by-step explanation:
Which symbol makes the following number sentence correct?
4.567 _____ 4.576
=
>
Answer:
The answer is <
Step-by-step explanation:
Nothing