Answer:
none of the above
Step-by-step explanation:
plug in the x and y values into the equation and see if they equal 15
Answer:
Step-by-step explanation:
So the correct answers are (−3,52), (−6,154), (−5,103), and (5,−56).
HELP!!!
Describe the shape of the data distribution
Will give brainiest (08.01) The graph shows two lines, A and B. Based on the graph, which statement is correct about the solution to the system of equations for lines A and B? (4, 4) is the solution to line A but not to line B. (4, 4) is the solution to both lines A and B. (5, 1) is the solution to line B but not to line A. (0, 2) is the solution to both lines A and B.
Answer:
Option B.
Step-by-step explanation:
If a point (a,b) lies on a line then it is the solution of that line.
From the given graph it is clear that point (4,4) is the intersection point of line A and B. It means (4,4) lies on both lines.
So, (4, 4) is the solution to both lines A and B. Hence, option B is correct.
Point (5,1) lies on line A. So, (5, 1) is the solution to line A but not to line B.
Point (0,2) lies on line B. So, (0, 2) is the solution to line B but not to line A.
Therefore, the correct option is B.
Which student correctly solved their equation below?
a. Emery
b. Savannah
c. Both students
d. Neither student
Answer:Savannah
Step-by-step explanation:Just subsitute the variables for the nuber they said it is equal to and if it is true then it is correct
Answer: Savannanah subsitute the variables for the number they said it is equal to and if it is true then it is correct
Find a quadratic polynomial the sum and product of whose zeroes are -8 and 12 respectively. Hence find the zeroes.
Step-by-step explanation:
We khow the sum and the product of the zeroes of this quadratic polynomial
Here is a trick :
when we khow the sum S and the product P ofvtwo numbers we can find them by solving :
x²-Sx+p=0
here S= -8 and P=12
so:
x²+8x+12=0
Let Δ be the discrminant of this equation: a= 1 , b= 8 and c=12
Δ= 8²-4*12 =16
the zeros are:
(-8-4)/2= -6
(-8+4)/2 = -2
verify:
-6+(-2)= -8
-2*(-6)= 12
now the polynomial quadratic is:
(x+6)(x+2)
A ramp is being built to an entrance of a school. The ramp will begin 4 feet from the entrance and have an incline of 6°. How long is the ramp? Question 18 options: A) 38.06 units B) 3.82 units C) 38.27 units D) 4.02 units
Answer:
D) 4.02 units
Step-by-step explanation:
This will be a right triangle, where b = 4 and angle A is 6 degrees
We want to find c
cos A = adjacent / hypotenuse
cos 6 = 4/c
c cos 6 =4
c = 4/ cos 6
c =4.022033118
The sum of two consecutive integers is 61. What are the integers?
Include a let statements and checks in your answer.
Answer:
30, and 31
Step-by-step explanation:
Let n=the smaller of the two integers
n+n+1=61
2n+1=61
2n=60
n=30
Answer:
30, and 31
Step-by-step explanation:
Let the "x" mean the smaller of the two integers
x+x+1=61
2x+1=61
2x=60
x=30
CHECK:
30+30+1=61
2(30)+1=61
60+1=61
61=61 ✓
HOPE THIS HELPS
Reflection over the y-axis and a translation of shifting down 7 units.
Answer: (-x, y-7)
Step-by-step explanation:
A reflection across the y-axis changes the sign of the x-value.
(x, y) → (-x, y)
Shifting down 7 units subtracts 7 from the y-value.
(-x, y) → (-x, y-7)
What will the sign be on the solution to this problem: (-3)(-4)(5)(6)(-7)
+
-
Answer:
-
Step-by-step explanation:
becuase (-3)(-4) will give you a positive and when you mutipy it with the 5 and 6 you will still get postive but when you multiply with -7, you will get a negitive
Answer:
Negative
Step-by-step explanation:
[tex](-3)(-4)(5)(6)(-7)\\\\-3*-4*5*6*-7\\\\\boxed{-2520}[/tex]
The product has a negative sign.
Brainilest Appreciated.
the two rectangular similar
no the ratios of corresponding sides are not equal
yes the lengths of the corresponding sides form equal ratios
no. the figures are facing different directions
yes they are both rectangles
Answer:
no the ratios of corresponding sides are not equal
Step-by-step explanation:
For two rectangles to be considered similar, the ratio of the length of their corresponding sides must be of equal measure.
Let's find out if the 2 given rectangles are similar or not by finding the ratio of the length of their corresponding sides as follows:
3/3 = 1
4/6 = 2/3
Thus, 3/3 ≠ 4/6
The ratio of their corresponding sides are not equal. Therefore, the two rectangles bare not similar.
The answer is: "no the ratios of corresponding sides are not equal".
HELP!!! How far have I travelled if I biked at 10mph for hhrs, I walked at 3mph for twice as long as I biked, and ran at 10mph for one quarter as long as I walked?
Answer:
21h miles
Step-by-step explanation:
The appropriate relation is ...
distance = speed · time
__
We are given that ...
biking time = h
walking time = 2h
running time = (1/4)(2h) = h/2
The total distance traveled is ...
total distance = biking distance + walking distance + running distance
= (10)(h) +(3)(2h) +(10)(h/2)
= 10h + 6h + 5h
total distance = 21h . . . miles
Answer:
21h miles
Step-by-step explanation:
The appropriate relation is ...
distance = speed · time
__
We are given that ...
biking time = h
walking time = 2h
running time = (1/4)(2h) = h/2
The total distance traveled is ...
total distance = biking distance + walking distance + running distance
= (10)(h) +(3)(2h) +(10)(h/2)
= 10h + 6h + 5h
total distance = 21h . . . miles:
A nautical mile is the unit of length used in sea and air navigation. A
nautical mile is equal to 6,174 feet. What percent of a statute mile, (5,360
feet) is a nautical mile? (Round to the nearest hundredth.)
Answer:
86.82%
Step-by-step explanation:
A nautical mile = 6,174 feet.
Statute mile =5,360 feet
The percentage of a statute mile to a nautical mile is calculated as:
5360/6174 × 100
= 0.8681567865 × 100
= 86.81567865%
Approximately to the nearest hundredth = 86.82%
Therefore, the percent of a statute mile that is a nautical mile rounded to the nearest hundredth is 86.82%
Find the domain of the rational expression: x-4/2x-6
1. all real numbers except 3
2. all real numbers except 6
3. all real numbers except O
4. all real numbers except 4
Answer:
All real numbers except 3
Step-by-step explanation:
Given
[tex]\frac{x - 4}{2x - 6}[/tex]
Required
Determine the domain
We start by writing the following inequality
[tex]2x - 6 \neq 0[/tex]
Add 6 to both sides
[tex]2x -6 + 6 \neq = 0 + 6[/tex]
[tex]2x \neq 6[/tex]
Divide both sides by 2
[tex]\frac{2x}{2}\neq \frac{6}{2}[/tex]
[tex]x \neq \frac{6}{2}[/tex]
[tex]x \neq = 3[/tex]
As such, the domain of x is all real numbers except 3
Please hurry❗️❗️❗️!!!!!!
Which expression is equivalent to a+(C+7)?
О 7ac
O a-(C+7)
O (C+7)-a
0 (a+c) + 7
Answer:
The answer is (a+c) + 7
Since addition is associative a + ( C + 7) can also be written as (a+c) + 7
Hope this helps you
Answer:
(a+c)+7
Step-by-step explanation: This method is called associative property.
On addition changing the order brings no change to the answer. For example:- 2+3=3+2. but don't confuse this with multiplication. For example, if the question was a(c+7), then you are supposed to multiply c, + and 7 by a.
Hope it would help :)
Find the perimeter and the area of the LED screen of the camera. (Simplify your answer completely.) perimeter units area square units 4/x+6 long 3/x-1 wide
Answer:
Step-by-step explanation:
The LED screen of the camera is rectangular in shape.
Given the length of the screen = 4/x+6
Width of the screen = 3/x-1
Area of the LED screen = Length * Width = 4/x+6 * 3/x-1
On simplification, Area = 12/(X+6)(X-1)
= 12/x²-x+6x-6
= 12/x²+5x-6 units²
Perimeter of the LED screen = 2(L+W)
= 2(4/x+6 + 3/x-1)
= 2(4(x-1)+3(x+6)/x+6(x-1))
= 2(4x-4+3x+18/x²+5x-6)
= 2(7x+14/x²+5x-6)
= 14(x+2)/x²+5x-6 units
Plz help asap!!!!!!!
HELP PLEASE!
Isosceles triangle ABC is shown below.
Triangle A B C. Angles B and C are x. Sides C A and B A extend to form an exterior angle at point A with a measure of 22 degrees.
What is the value of x?
22°
79°
136°
158°
Answer:
Isosceles add upto 180°
To find x =180°-22°=158°
Answer:
x = 79°
Step-by-step explanation:
→ Remember that vertically opposite angles are equal so 22° is opposite to CAB so angle CAB is 22°
CAB = 22°
→ Remember the fact that
Angles in a triangle add up to 180°Base angles in an isosceles triangle are equalUsing the information we form an equation,
2x + 22 = 180
→ Minus 22 from both sides to isolate 2x
2x = 158
→ Divide both sides by 2 to isolate x
x = 79°
In how many different ways can 6 people be seated at a round table
A rectangle has a perimeter of 269.4 miles and a base of 77.6 miles. What is the height?
Answer:
you have to divivide both number to find the height=57.1
Step-by-step explanation:
Step-by-step explanation:
Perimeter = 2×(Height × Base)
269.4 = 2(Height × 77.6)
269.4 = 155.2 × 2Height
2Height = 114.2
Height = 57.1 miles
A box of cereal is supposed to weigh 13.8 oz, but it's acceptable for the weight to vary as much as
0.1 oz. Write and solve an absolute value inequality to find the range of acceptable weights.
Which expression is equivalent to (x Superscript one-half Baseline y Superscript negative one-fourth Baseline z) Superscript negative 2? StartFraction x Superscript one-half baseline Over y z squared EndFraction StartFraction x Superscript one-half baseline Over y Superscript one-fourth Baseline z squared EndFraction StartFraction y Superscript one-half Baseline Over x z squared EndFraction
Answer:
[tex]\frac{x^{\frac{1}{2}}}{y^{\frac{1}{4}}z^2}[/tex]
Step-by-step explanation:
Given
[tex]x^{\frac{1}{2}}y^{-\frac{1}{4}}z^{-2}[/tex]
Required
Find the equivalent
To find the equivalent of the given expression; we have to apply laws of indices;
As a law;
[tex]a^{-m} = \frac{1}{a^m}[/tex]
So; the expression [tex]x^{\frac{1}{2}}y^{-\frac{1}{4}}z^{-2}[/tex] becomes
[tex]x^{\frac{1}{2}}*\frac{1}{y^{\frac{1}{4}}}*\frac{1}{z^2}[/tex]
This is further simplified to
[tex]x^{\frac{1}{2}}*\frac{1}{y^{\frac{1}{4}} * z^2}[/tex]
[tex]x^{\frac{1}{2}}*\frac{1}{y^{\frac{1}{4}}z^2}[/tex]
Combine to form a single fraction
[tex]\frac{x^{\frac{1}{2}}*1}{y^{\frac{1}{4}}z^2}[/tex]
Multiply numerator
[tex]\frac{x^{\frac{1}{2}}}{y^{\frac{1}{4}}z^2}[/tex]
The expression can not be further simplified
Hence [tex]x^{\frac{1}{2}}y^{-\frac{1}{4}}z^{-2}[/tex] is equivalent to [tex]\frac{x^{\frac{1}{2}}}{y^{\frac{1}{4}}z^2}[/tex]
Answer:
c
Step-by-step explanation:
x has a exponent of -1 after multiplying 1/2 and -2, so x has to be in the denominator of the answer no matter what.
Hope this helped other than the guy above lol
Please help i will mark brainliest!
Answer:
Cluster Sampling
Step-by-step explanation:
I cant be 100% sure as i am not in statistics, but by definition cluster sampling is a probability sampling technique where researchers divide the population into multiple groups (clusters) for research (in this case its the phone book). Researchers then select random groups (three random pages) with a simple random or systematic random sampling technique for data collection and data analysis(interviews).
so that appears to be what is happening in this scenario.
A motor is 85.4 % efficient: that is, the output is 85.4 % of the input.
What is the input if the motor delivers 10.75 hp. ( Round your answer to 1
decimal place.)
Answer:
12.6 hp
Step-by-step explanation:
output of motor = 85.4% of input of motor.
Given that motor delivers 10.75 hp, it means output of motor is 10.75hp
Using both the given conditions
10.75 = 85.4% of input of motor
=> 10.75 = 85.4/100 * input of motor
=> input of motor = 10.75*100/85.4 = 1075/85.5 hp = 12.57 hp.
Input of motor rounded to 1 decimal place = 12.6 hp
help i not smart plz
Answer: The third one
Step-by-step explanation:
4d-6<18 Add six to both sides
4d<24 Divide both sides by 4
d<6 It is an open circle because it is not less than or equal to
rewrite the rational exponent as a radical by extending the properties of integer exponents
Answer:
Step-by-step explanation:he correct answer is:
the eighth root of 2 to the fifth power .
Explanation:
What we have is:
Using the rules of exponents, we know that when we divide powers with the same base, we subtract the exponents. The base of each exponent is 2, so we subtract:
7/8 - 1/4
We find a common denominator. The smallest thing that both 8 and 2 will evenly divide into is 8:
7/8 - 2/8 = 5/8
This gives us:
When rewriting rational exponents as radicals, the denominator is the root and the numerator is the power. This means that 8 is the root and 5 is the power, which gives us:
,
or in words, the eighth root of 2 to the fifth power.
Which is true regarding the graphed function f(x)?
O FO) = 3
O f/5) = -1
Of(3) = 2
Of(2)= -2
Answer:
The answer is option B
f( 5) = - 1
Hope this helps you
Regarding the graph function f(x), it is only F(5) = -1 that is true. Option B is the correct answer.
The slope (m) of the graph is
m = (4 - 0) / (0 - 4)
m = -1
From general linear equation: y = mx + c
The equation of the function is;
y = -x + 4
f(x) = -x + 4
Let us check all the options one by one.
If x = 0,
F(0) = 4 This is not true
If x = 5
F(5) = -5 + 4
F(5) = -1 This is true.
Therefore, regarding the graph function f(x), it is only F(5) = -1 that is true. Option B is the correct answer.
Learn more about Function here : https://brainly.com/question/17043948
What does the perimeter of this figure consist of?
A.) one semicircle and one line segment
B.) one semicircle and two line segments
C.) one semicircle and three line segments
D.) two semicircles and two line segments
I hope you can help!
Answer:
B.) one semicircle and two line segments
Step-by-step explanation:
The curve would be part of the 'semicircle'. The two line segments would make up the outside of the triangle. The perimeter would have to go around the semicircle's curve and the outside of the triangle.
Option B should be the correct answer.
In which quadrant does the point (25 , 21) lie? A. Quadrant I B. Quadrant IV C. Quadrant III D. Quadrant II
Answer:
A
Step-by-step explanation:
Both of the coordinates are positive. The quadrant that has points with positive x and y coordinates is Quadrant I.
Find the missing segment in the attached image
Answer:
The length of the missing segment is 44
Step-by-step explanation:
Given
The figure above
Required
Determine the missing segment
Let the missing segment be represented with x
Given that, there exist parallel lines between the two triangles;
The relationship between the sides of the triangles is as follows;
[tex]\frac{20}{x} = \frac{10+20}{22+x}[/tex]
[tex]\frac{20}{x} = \frac{30}{22+x}[/tex]
Cross Multiply
[tex]20 * (22 + x) = 30 * x[/tex]
Open bracket
[tex]20 * 22 + 20 * x = 30 * x[/tex]
[tex]440 + 20x = 30x[/tex]
Subtract 20x from both sides
[tex]440 + 20x - 20x= 30x- 20x[/tex]
[tex]440 = 30x- 20x[/tex]
[tex]440 = 10x[/tex]
Divide both sides by 10
[tex]\frac{440}{10} = \frac{10x}{10}[/tex]
[tex]\frac{440}{10} = x[/tex]
[tex]44 = x[/tex]
[tex]x = 44[/tex]
Hence, the length of the missing segment is 44
What is the equation, in point-slope form, of the line that
is perpendicular to the given line and passes through the
point (-4, -3)?
2
y + 3 = -4(x + 4)
y + 3= -1/4x + 4)
y + 3 = 1/4x + 4)
y + 3 = 4(x + 4)
Answer:
the answer is y+3=1/4x+4
This is a trigonometry related problem, but I don't understand the question itself, finding the missing sides when it appears all the sides are given, as well as all the angles. Can someone help me out with this question? Thanks!
Problem 13
Answer: Choice C. x = 7*sqrt(2), y = 7----------------------------
Explanation:
For any 45-45-90 triangle, the legs are the same length. One leg is 7, so the other leg is 7 as well. This means y = 7.
The hypotenuse of a 45-45-90 triangle is equal to sqrt(2) times the length of either leg. So that leads to 7*sqrt(2) being the hypotenuse. You can use the pythagorean theorem to solve 7^2+7^2 = x^2 to confirm that x = 7*sqrt(2)
============================================================
Problem 14
Answer: Choice D. x = 3, y = sqrt(3)------------------------------
Explanation:
The hypotenuse is 2*sqrt(3). Take half of this to get sqrt(3), which will be the length of the short leg y. So y = sqrt(3)
Multiply the short leg's length with sqrt(3) to get the length of the long leg
In other words,
long leg = (short leg)*sqrt(3)
long leg = sqrt(3)*sqrt(3)
long leg = sqrt(3*3)
long leg = sqrt(9)
long leg = 3
Therefore, x = 3
All of this applies to 30-60-90 triangles only. Like with problem 13, if you know two sides of a right triangle, you can use the pythagorean theorem to solve for the third missing side.