Answer:
This would be a right triangle
Step-by-step explanation:
4.
Your math test has 38 questions and is worth 200 points. The test consists
of multiple-choice questions worth 4 points each and open-ended questions
worth 20 points each. How many of each type of question are there?
... please solve this using if systems of equations
Answer:
Number of multiple-choice questions = x = 35 questions
Number of open-ended questions = y = 3 questions
Step-by-step explanation:
Let
Number of multiple-choice questions = x
Number of open-ended questions = y
x + y = 38 (1)
4x + 20y = 200 (2)
From (1)
x = 38 - y
Substitute x = 38 - y into (2)
4x + 20y = 200
4(38 - y) + 20y = 200
152 - 4y + 20y = 200
- 4y + 20y = 200 - 152
16y = 48
y = 48/16
y = 3
Substitute y = 3 into (1)
x + y = 38
x + 3 = 38
x = 38 - 3
x = 35
Number of multiple-choice questions = x = 35 questions
Number of open-ended questions = y = 3 questions
Please explain why the correct answer is correct :)
Answer: your anawer is D
Step-by-step explanation:
the length of a rectangle is 7 cm more than its width and the area is 30 cm find the length, width and the perimeter
Answer:
Step-by-step explanation:
let width=x
length=x+7
x(x+7)=30
x²+7x-30=0
x²+10x-3x-30=0
x(x+10)-3(x+10)=0
(x+10)(x-3)=0
either x=-10 (rejected being negative)
or x=3
width=3 cm
length=3+7=10 cm
Perimeter=2(10+3)=2×13=26 cm
Take a factor out of the square root:
Answer:
[tex]-y\sqrt{3}[/tex]
Step-by-step explanation:
Under the radical there is a perfect square, one can take the perfect square out, and write it by its square root. The result of taking the principal square root is always positive, but it is given that the perfect square factor is negative, thus, one must multiply the square root by the negative sign to ensure that the result is positive.
Answer:
[tex]-y\sqrt{3}[/tex]
Step-by-step explanation:
Tyler invested $350 in an account paying an interest rate of 4.5% compounded
continuously. Assuming no deposits or withdrawals are made, how long would it
take, to the nearest tenth of a year, for the value of the account to reach $700?
Answer:
15.4 I did this on delta math
It would take approximately 15.4 years, to the nearest tenth of a year, for the value of the account to reach $700 with continuous compounding.
How to calculate compounding time?The formula for calculating the future value (FV) of an investment with continuous compounding is:
[tex]FV = Pe^{rt}[/tex]
Where P is the initial principal, r is the annual interest rate (expressed as a decimal), t is the time period (in years), and e is the mathematical constant e (approximately 2.71828).
In this case, we have P = $350, r = 4.5% = 0.045, and we want to find the time t when the FV is $700. Substituting these values into the formula, we get:
[tex]700 = 350e^{0.045t}[/tex]
Dividing both sides by $350, we get:
[tex]2 = e^{0.045t}[/tex]
Taking the natural logarithm of both sides, we get:
[tex]ln(2) = ln\times e^{0.045t}[/tex]
Using the properties of logarithms, we can simplify this to:
ln(2) = 0.045t ln(e)
Since ln(e) = 1, we can simplify further to:
ln(2) = 0.045t
Finally, solving for t, we get:
t = ln(2) / 0.045 ≈ 15.4
Therefore, it would take approximately 15.4 years, to the nearest tenth of a year, for the value of the account to reach $700 with continuous compounding.
To know more about continuous compounding follow
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The circumference of the
wheel on Beyoncé's bicycle
is 63 inches. What is the
diameter of the bicycle
wheel to the nearest inch?
Use 3.14 for a.
To the nearest inch it'll be
d×3.14=63
= 20 inches
The interior angles formed by the sides of a quadrilateral have measures that sum to 360°.
What is the value of x?
Enter your answer in the box.
x =
Answer:
x=2
Step-by-step explanation:
Multiply: 7,277x6
Please hurry!
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The slope of the tangent to a curve at any point (x, y) on the curve is negative x divided by y . Find the equation of the curve if the point (2, -2) is on the curve.
x + y = 0
x^2 - y^2 = -2
x^2 + y^2 = 16
x^2 + y^2 = 8
Answer:
.
Step-by-step explanation:
.
Answer:
i belive its x^2 + y^2 = 8
Step-by-step explanation:
The following triangle is equilaterial triangle. Solve for the unknown variable.
Answer:
d
Step-by-step explanation:
Since the triangle is equilateral then the 3 sides are congruent, then
2x = 6 ( divide both sides by 2 )
x = 3
and
3y = 6 ( divide both sides by 3 )
y = 2
Thus x = 3 and y = 2 → d
From the set {5, 9, 12}, use substitution to determine which value of x makes the equation true. 12(x - 4) = 96
Answer:
12
Step-by-step explanation:
12(5-4)=96
60-48=12 means it's not five
12(9-4)=96
108-48=60 means it's not 9
12(12-4)=60
144-48=96 so answer is 12
Pam's eye–level height is 256 feet above sea level and Adam's eye–level height is 400 feet above sea level. What expression shows how much farther Adam can see to the horizon? In simplest terms, Adam can see a√b feet farther than Pam.
Answer:
B
A=2
B=6
Step-by-step explanation:
The expression that shows how much farther Adam can see to the horizon should be considered as the d = 400 - 256 and d = 256 - 400.
Calculation of the expression:Since
Pam's eye–level height is 256 feet above sea level and Adam's eye–level height is 400 feet above sea level.
So here the expression be like The expression that shows how much farther Adam can see to the horizon should be considered as the d = 400 - 256 and d = 256 - 400.
Learn more about an expression here: https://brainly.com/question/4700495
8.)
1 point
Does (0,7) make the equation y = 3x + -7 true?
Answer:
YES
Step-by-step explanation:
The 7 in (0,7) is the y-intercept given in the equation y = 3x + 7
PLZ HELP!!! THIS IS DUE TODAY!!!
Answer:
the second one is correct
Step-by-step explanation:
PLEASE HELP ASAP!!!!
Answer: Im going to say C
Step-by-step explanation: Because the lines both look the same they could be even.
A square painting has a side length of 13 inches.
What is the area of the painting?
Answer:
169
Step-by-step explanation:
13*13=169
Answer:
169
Step-by-step explanation:
length x width = area
since it is a square, all sides are equal.
13 x 13 = 169
can i please get some help
Answer: x=0
Step-by-step explanation: This is number 9
12=-4(-6x-3)
-4(-6x-3)=12
-4(-6x-3)/-4=12/-4
-6x-3=-3
-6x-3+3=-3+3
-6x/-6=0/-6
x=0
A rectangular wall is 4x-5 units high and 2x+7 units long. Which polynomial best represents the area of the wall in square units?
Answer:
8x^2 + 18x - 35.
Step-by-step explanation:
Area = (4x - 5)(2x + 7)
= 8x^2 + 28x - 10x - 35
= 8x^2 + 18x - 35.
I need this ASAP, please
A. The table represents a function because each element in the range is associated with exactly one element in the domain.
B. The table does not represent a function because each element in the domain is associated with exactly one element in the range.
C. The table represents a function because each input has exactly one output.
D. The table does not represent a function because each output does not have exactly one input.
Select the correct answer from each drop-down menu. Consider the end behavior of the function g(x) = |x-2| - 3. As x approaches negative infinity, Rx) approaches As x approaches positive infinity, AX) approaches infinity. y infinity
The solution is: As x approaches negative infinity, f(x) approaches
Positive; Negative.
What is function?Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable.
here, we have,
According to the question, the following information is given
G(x) = |x - 2| - 3
Based on the above information
As it can be seen that there is a modulus that means if there is any negative value that it can become a positive value.
Therefore the answer is positive and negative.
hence, The solution is: As x approaches negative infinity, f(x) approaches
Positive; Negative.
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Find the product. Express your answer as a mixed number in simplest form.
2 1/6 × 4 1/2
Answer: 1 1/2, 3/2, or 1.5
Step-by-step explanation: Convert expression into unproper fractions, 13/6, and 9/2. Then by changing 13/6 into a denominator with 2, you multiply and it equals 1 1/2.
2/3x=-20 A -60 B -30 C -10 D 10
Answer:
B. -30
Step-by-step explanation:
[tex]x = -20\cdot \frac{3}{2} = -30[/tex]
100 POINTS, MAHNIFIA PLEASE ANSWER!
SCAMMERS WILL NOT BE TOLERATED!
Answer:
- 3.4(21) = - 71.4
(- 2.3)(- 7.9) = 18.17
9.24 ÷ - 7 = -1.32
(- 8.5) ÷ (- 3.4) = 2.5
- 6.85 ÷ 0.5 = - 13.7
I will greatly appreciate if you can solve this question!
Answer: The answer would be B
Write out the equation in slope-intercept form:
y=-5/3x+6 (Once we know that, it'll be easier to convert it into standard form.)
Subtract -5/3 from both sides of the equation:
y+5/3x=6
Subtract 6 from both sides:
y+5/3x-6=0
Multiply both sides by 3 to get rid of the fraction:
3y+5x-18=0
Then arrange the numbers to x and y are on one side by itself:
3y+5x=18
And that's your answer!
Hope this helped you!
If X = 2 units, Y = 9 units, and Z = 6 units, then what is the volume of the rectangular prism shown above?
Answer:
108 cubic units
Step-by-step explanation:
If X = 2 units, Y = 9 units, and Z = 6 units, then what is the volume of the rectangular prism shown above?
Volume of a rectangular prism XYZ = Length × Width × Height
= 2 unit × 9 unit × 6 unit
= 108 cubic units
Which equation has the same solution as x^2-6x-12=0
1) (x+3)^2=21
2) (x-3)^2=21
3) (x+3)^2=3
4) (x-3)^2=3
Answer:
B) (x-3)^2=21
Step-by-step explanation:
Solve for x and y simultaneously
Pls help me
I don't think its possible to do this... you have to have 2 equations
Plsssss help me this is urgent.
Which tank has the greater volume?
Tank A has a diameter of 10 ft and a height of 3 ft. Tank B has a diameter of 6 ft and a height of 8 ft
A.Tank B has a greater volume.
B.Tank A and Tank B have the same volume.
C.Tank A has a greater volume
Tank A has a greater volume.
The graph represents the average heights of boys in the United States from age two to age ten. A line of best fit has been drawn through the data.
Which statement describes the correlation coefficient?
The correlation coefficient will have a value very close to 0.
The correlation coefficient will have a value very close to 1
The correlation coefficient will have a value very close to –1.
The correlation coefficient will have a value very close to 0.5.
Answer:
A gotchu Just took the test got 100
Step-by-step explanation:
B
Answer:
The answer is B
Step-by-step explanation:
As it is very close to one because all the points are close together
FIND THE VALUE OF X AND Y PLEASE ILL GIVE YOU BRAINLEST
Answer:
x = 10
y = 50
Step-by-step explanation:
9x - 70 = x + 10
8x - 70 = 10
8x = 80
x = 10
3y - 60 = 90
3y = 150
y = 50
The answer is:
x- 10
y- 50