Answer:
x = 4 and y = 8.
Step-by-step explanation:
The given equations are :
-8x+y=-24 ....(1)
and
3x-2y=-4 .....(2)
Multiplying equation (1) by 2.
-16x+2y=-48 ....(3)
Adding equation (2) and (2).
3x-2y+(-16x+2y) = -4-48
3x-16x= -52
-13x = -52
x = 4
Put the value of x in equation (1)
-8(4)+y=-24
-32 + y = -24
y = -24+32
y = 8
Hence, the solutions of the equations are x = 4 and y = 8.
If 2 is subtracted from 3 times a number , the result is 25.Find the number?
Answer:
3x-2=25
x=9. .
Answer:
9
Step-by-step explanation:
please answer thisss <3
Answer:
i think . it is c
Step-by-step explanation:
I need help or my math teacher will call my parents up about it and I will die
Answer:
113mm^2
Step-by-step explanation:
Firstly work out the area of the pink circle using πr^2, which is the area of a process.
So we do πx12^2, which gives us 144π mm we have to divide this by two to get half of a circle hence giving us the area of the semi-circle. 72π mm is the area of the semicircle.
Then we must find the area of the white circle to subtract it from our semicircle. Since we know the radius is 12 from the center to anywhere, we know that the white circles diameter is 12, using our formula for the area all we need to do is πx6^2. This gives us 36π.
72π - 36π = 36π
36π is equal to 113.0973355 and since we need it too 3sf it will be 113mm^2
Need help with figuring out this zingoes problem asap, willing to give brainliest!
Answer:
Zingo, not Zingo, Zingo, Zingo, and not Zingo (left to right)
Step-by-step explanation:
We can notice that all of the Zingoes have a vertical line down an enclosed shape. Additionally, the line must be fully inside the enclosed shape.
Using these properties, starting from the left, we hafd a Zingo, not Zingo, Zingo, Zingo, and not Zingo.
I hope this helps! If you have any questions, feel free to ask. :)
Please help me i need help ASAP!!! please help
Answer:
BC = 17.1
m<B = 6.7 deg
m<C = 83.3 deg
Step-by-step explanation:
Find BC
a^2 + b^2 = c^2
AC^2 + AB^2 = BC^2
2^2 + 17^2 = BC^2
4 + 289 = BC^2
BC^2 = 293
BC = sqrt(293)
BC = 17.1
Find <B
tan B = opp/adj
tan B = 2/17
B = tan^-1 2/17
B = 6.7 deg
Find <C
m<A + m<B + m<C = 180
90 + 6.7 + m<C = 180
m<C = 180 - 90 - 6.7
m<C = 83.3
Given that x/1 = 3y/8, find the ratio of : y
Answer:
3 : 8
Step-by-step explanation:
[tex]\frac{x}{1} = \frac{3y}{8}[/tex]
cross multiply
8x = 3y
x = 3/8
x : y = 3 : 8
Write the additive inverse of -1/3
Write the additive inverse of [tex]\frac{ - 1}{3} [/tex].
➼ The additive inverse of [tex] \frac{ - 1}{3} [/tex] is [tex]\frac{+ 1}{3} [/tex].
[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]
Simplify the expression.
49 1/2 - 4 1/2
One afternoon, Olive, who is 2 feet 3 inches tall, casts a shadow that is 6 feet 1 inch long. At the same time of
the day, a nearby tree casts a shadow that is 12 feet long. Olive reasons she can figure out the height of the
tree.
What is the height of the tree in feet? Round your answer to the nearest tenth of a foot.
2×12=24
24+3= 27
12*12=144
144/24=6
which choice is equivalent to the quotient below
Hey help me please much help
Answer:
C
Step-by-step explanation:
Slope
up 3, right 1 3/1slope = 3Y-intercept = -4
Knowing the slope is 3 and the y-intercept is -4, the answer should be y=3x-4.
picture, 20 points and will gibe brainliest..
Answer:
D : reflection over the y-axis followed by a translation to the right one unit
Which relation is a function?
Answer:
the answer should be A
Step-by-step explanation:
be your X values are not supposed to repeat
Can someone please help me
Answer:
28/43
Step-by-step explanation:
The question asks what is the probability that Marley picks out a blue or yellow marble.
In total, there are 43 marbles.
In total, there are 28 blue and yellow marbles. (18+10=28)
So, the answer would be 28/43
Hope this helps
which fraction is greater than 5/9 ?
7/13 6/10 3/7 or 4/8
Step-by-step explanation:
First of all, we'll have to eliminate 4/8 and 3/7 because they're both 1/2 or smaller and 5/9 is bigger than 1/2.
That leaves 7/13 and 6/10. 6/10=54/90 and 5/9 is 50/90.
So 6/10 is the correct answer
marqualyn needs help...
Answer:
20mins
Step-by-step explanation:
3/4 * 60 = 45 mins
1/4 * 60 = 15mins
15mins + 10mins = 25 mins
45 - 25 = 20mins
What are the amplitude and midline?
A. Amplitude: 1; midline: y = 1
B. Amplitude: 0; midline: y = 0
C. Amplitude: 2; midline: y = 1
D. Amplitude: 2; midline: y = 0
Answer:
A. Amplitude: 1; midline: y = 1
Answer:
A. Amplitude: 1; midline: y = 1
Step-by-step explanation:
i took the test
PLSSSSS HELP MEEEE!!!!!!
Jose drove 35 miles in 2/3 hours. If he drove at a constant rate, how far did he travel in one hour? Enter your answer as a whole number, proper fraction, or mixed number in the simplest form.
Answer:
Jose traveled 52.5 miles in 1 hour
Step-by-step explanation:
What we're actually doing here is finding the "unit rate": the speed in mph:
35 mi 105 mi
------------ = ------------ = 52.5 mph = 52.5 miles in 1 hour
2/3 hr 2 hr
Jose traveled 52.5 miles in 1 hour
pls help me i don’t get this
Answer:
I think choose (c)
4x+1/x²-5
Dominic wants to find the distance between his house on one side of the park and his school on the other side. He marks off a third point forming a right triangle, as shown in the diagram. The distances in the diagram are measured in yards. Use the Pythagorean Theorem to find the distance from Dominic’s house to the school. Sho
Answer:
The distance from the house to the school is 500 units
Step-by-step explanation:
The distance we want to calculate represents the hypotenuse of the right triangle
So, to use the Pythagoras’ theorem, we need the two other side lengths apart from the hypotenuse
The base side measures (350-50 = 300 units)
The measure of the height is (450-50 = 400 units)
Mathematically, the theorem states that the square of the hypotenuse equals the sum of the squares of the two other sides
Thus, we have it that;
h^2 = 300^2 + 400^2
h^2 = 90,000 + 160,000
h^2 = 250,000
h = √250,000
h = 500 units
y=3x-1
Help pleaseeeeee
Answer:
y=3x-1
Step-by-step explanation:
Not enough context
Hope this helps!
:)
Select the correct answer from each drop-down menu.
Use the given functions represented by the equation and the graph to complete the statements.
f(x)=2x^3 - 3x^2 + 5x + 7
As x approaches positive infinity, f(x) approaches [negative infinity, positive infinity, zero] and g(x) approaches [negative infinity, positive infinity, zero]. The y-intercept of function f is [equal to, less than, greater than] the y-intercept of function g.
Answer:
f(x) approaches positive infinity.
g(x) approaches negative infinity.
the y-intercept of f(x) is less than the y-intercept of g(x).
Step-by-step explanation:
the highest power of x in f(x) is 3, and it has a positive sign. so, the bigger x the more the x³ part will dominate.
therefore, with x going to positive infinity, also f(x) goes to positive infinity.
the graph of g(x) clearly dives down never to come back up or flatten out. so, with x going to positive infinity, g(x) goes to negative infinity.
the y-intercept of f(x) = f(0).
that means the functional value when x=0.
so, for x=0 this means
y = 2×0³ - 3×0² + 5×0 + 7 = 7
the graph of g(x) shows that g(0) is 8.
so f(0) is less than g(0).
As x approaches positive infinity, f(x) approaches positive infinity and g(x) approaches negative infinity. The y-intercept of the function f is 7 and the y-intercept of function g is 8. #SPJ5
How to analyze the behavior of two given polynomialsPolynomials are algebraic expressions whose form is described below:
[tex]y = \sum \limits_{i = 0}^{n} c_{i}\cdot x^{i}[/tex] (1)
Where [tex]c_{i}[/tex] is the i-th coefficient of the polynomial.
In this question we have two polynomials in two distinct presentations, an analytical and a graphical one, whose behaviors must be analyzed to fill the blanks of the paragraph given. The complete paragraph is shown below:
As x approaches positive infinity, f(x) approaches positive infinity and g(x) approaches negative infinity. The y-intercept of the function f is 7 and the y-intercept of function g is 8. #SPJ5
To learn more on polynomials, we kindly invite to check this: https://brainly.com/question/20121808 #SPJ5
How do I generate equivalent expressions by combining like terms, simplifying, or factoring this? ( 4b + 8) =
Answer:
4(b + 2)
Step-by-step explanation:
Given data
The expression is
( 4b + 8)
Looking at the expression, 4 is common
factor 4 out
4(b + 2)
Hence the equivalent expression is
4(b + 2)
A survey asked 25 students about their favorite sport. A frequency table of their responses is below.
Basketball
4.
Football
7
Lacrosse
3
Soccer
8
Volleyball
3
Which of the following is the correct relative frequency table for the students' favorite sport?
Basketball
0.16
Football
0.32
Lacrosse
0.12
Soccer
0.28
Volleyball
0.12
Basketball
0.16
Football
0.28
Lacrosse
0.12
Soccer
0.32
Volleyball
0.12
Basketball
0.04
Football
0.07
Lacrosse
0.03
Soccer
0.08
Volleyball
0.03
Basketball
4.
Football
7
Lacrosse
3
Soccer
8
Volleyball
3
Answer:
25.5 / 3 = 8.5
Step-by-step explanation:
8.5 times more student prefer basketball over soccer
Answer:
d
Step-by-step explanation:
A bag contains 9 discs of which 4 are red, 3 are blue and 2 are yellow. The discs are similar in shape and size. A disc is drawn at random from the bag. Calculate the probability that it will be either red or blue.
Answer:
the probability that it will be either red or blue is 7/9
Step-by-step explanation:
There are 9 disks altogether. Since there are 4 red disks, the probability that a red disk will be drawn is 4/9. The probability that a blue disk will be drawn is 3/9. These two events are independent of one another.
The probability that it will be either red or blue is that of the union of the two events. Thus, we add together 4/9 and 3/9, obtaining 7/9
4,756 rounded to the nearest thousand is
4,756 rounded to the nearest thousand is 5,000.
Answer:
rounded to the nearest thousands 4,756 is 5,000 since 7 is higher then 4 so it rounds up
3. (16.03 LC)
A shape has 2 pairs of parallel sides and no right angles. What shape is it? (4 points)
A. Trapezoid
B. Parallelogram
C. Square
D. Rectangle
A group of oceanographers measured the water temperature of the Atlantic Ocean at various depths and found that the temperature is different. Which of the objects are the independent variable and which is the dependent variable?
Answer:
The independent variable (IV) is the depths at the Altantic Ocean and the dependent variable (DV) is the water temperatures.
Step-by-step explanation:
The IV is what is changed between the groups of the study.
The DV is what is being measured for the groups.
You can say that the DV depends on the IV because changes and differences in the DV depends on the changes for the IV.
I hope this helps! :)
please help me I will give brainlist
Answer:
Option B
Step-by-step explanation:
I am sure
Hope this helped u
Answer:A
Step-by-step explanation:
HELP! Drag each value to the correct location on the equation. Not all values will be used.
The number of archaeological sites discovered in a country over time, x, can be represented by the function S(x) = 2(1.1)x. The approximate number of artifacts found in each site over time, x, can be represented by the function A(x) = (1.1)5x + 2.
Create the function, T(x), that best describes the total number of artifacts found in archaeological sites in the country after x years.
Answer:
huh
Step-by-step explanation:
?
The exponential function that best describes the total number of artifacts found in archaeological sites in the country after x years = T(x) = [tex]2(1.1)^{6x+2}[/tex]
What is exponential function?An exponential function is defined by the formula f(x) = a×, where the input variable x occurs as an exponent.
Time period = x years
The number of archaeological sites discovered in a country in x years = S(x) = [tex]2(1.1)^{x}[/tex]
The approximate number of artifacts found in each site over time = A(x) = [tex](1.1)^{5x+2}[/tex]
The total number of artifacts found in archaeological sites in the country after x years = T(x) = S(x).A(x) = [tex]2(1.1)^{x}(1.1)^{5x+2} = 2(1.1)^{6x+2}[/tex]
Learn more about exponential function here
https://brainly.com/question/11487261
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