Step-by-step explanation:
for the given value x = -2
= 3(2x-4) + x^2 +5
= 3(-4 -4) +4+5
= -24+9
= -15
The sum of the measures of the external angles of any polygon is
Answer:
The sum of all the exterior angles in a polygon is equal to 360 degrees.
Hope this helps you. Do mark me as brainliest.
Which value from the set {3, 12, 18, 27} makes true?
????????????
Answer:
The answer would be 27
Step-by-step explanation:
You need to multiply 9 to both sides. Please mark me brainliest.
Two possible plans for a new bathroom are shown. Is there a value of x for which the perimeters are equal? Show your work. Explain the reasoning.
Answer:
There is no value of x to fit this requirement.
Step-by-step explanation:
The 2 perimeters in terms of x are:
4(x + 3) for the square and
2(x+1) + 2(x +4) for the rectangle
and these need to be equal so
we equate these 2 and solve for x:
4(x + 3) = 2(x+1) + 2(x +4)
4x + 12 = 2x + 2 + 2x + 8
4x + 12 = 4x + 10
4x - 4x = 10 - 12
0 = -2 which is of course absurd so there is no solution to this equation.
Answer:
(x+3)•4=(x+4)•2+(x+1)•2
Step-by-step explanation:
4x+12=2x+8+2x+2
4x-2x-2x=-12+8+2
0=-2
this expression is indeterminate.
5/2=d-2/4 and another one 2x/5=9/15
PLEASE HELP
D = 3 for First one and the Second one is
Which of the following systems of linear equations has no solution?
Answer:
3rd choice
Step-by-step explanation:
The answer is the 3rd choice.
x cannot be 3 and 5 at the same time.
x = 3
x = 5
Subtract the first equation from the second equation.
x - x = 5 - 3
0 = 2
Since 0 = 2 is a false statement, there is no solution.
Answer: 3rd choice
PLEASE HELP ITS REALLY EASY PLS IM DESPERATE AHHHH PSLPLSPLS
Calculate the product: 48×38.
Answer:
1824
Step-by-step explanation:
48 x 38 =1824
Select all the values that are equivalent to -(7/8)
Answer:
last option
the correct answer is
- (- 7 / - 8)
In a game, the player wins if he rolls a 4 on a number cube (six sides). If the number cube is rolled 24 times, then what is a reasonable prediction for the number of times a 4 will be rolled?
Answer:
6
Step-by-step explanation:
ℎ 4 6
[tex]24 \div 4 = 6[/tex]
Type the missing number in this sequence:
1,
,
36,
216,
1,296
Tickets for an all-you-can-eat pancake breakfast cost $15 each. Which equation shows the relationship between c, the total cost of the breakfast tickets and t, the number of breakfast tickets bought? * 5 points c = 15t t = 15c c = t + 15 t = c + 15
Answer:
a) c = 15t
Step-by-step explanation:
c = the total cost of the breakfast tickets
t = the number of breakfast tickets bought
Tickets for an all-you-can-eat pancake breakfast cost $15 each
Therefore, the equation that shows the relationship between c, the total cost of the breakfast tickets and t, the number of breakfast tickets bought is written as:
c = $15 × t
c = 15t
Option a is the correct option
Write the expression as a power of 3
Help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help
Answer:
14. Answer : 3² . 3³ . 3¹ . 3⁴
Answer:
14. Answer : 3² . 3³ . 3¹ . 3⁴
Step-by-step explanation:
because I just know
Question #1 Pls help
Answer:
C. Strong Positive Linear Relationship
Step-by-step explanation:
If you were to draw a line through the points all of the points would be near the line therefore it has a strong correlation
The points are going upwards from left to right which indicates that the relationship is positive
From this information we can make a conclusion
This scatter plot has a strong positive linear relationship
Quadrilateral FGHI is dilated by a scale factor of to form quadrilateral F'G'H'I.
What is the measure of side I'F'?
H
62.6
I
56
28
56
Answer:
I’F’ = 21
Step-by-step explanation:
To find the length of I’F’
We perform the dilation on IF using the given dilation factor
All we have to do here is to multiply the length of IF by the dilation factor
We have this as ;
28 * 3/4 = 21
y2-2y+6 for y=2is who did first is the brainliest and you will be followed only the first person
Answer:
6Step-by-step explanation:
to understand thisyou need to know about:algebraPEMDASgiven:y²-2y+6y=2let's solve:substitute the value of y:2²-2.2+6simplify exponent:4-2.2+6simplify multiplication;4-4+6simplify addition:4+2simplify addition:6Answer:
6
y2-2y+6
since y= 2
22-22+6
=6
A clothing retailer is gathering data on the amount of time each customer spends shopping in its stores. Each location collected 20 pieces of data and will compile that data to determine a population mean. One location has a sample mean of 32.5.
Which statement must be true about this situation?
A.
There is not enough information to make a conclusion about the population mean.
B.
The population mean must be less than 32.5.
C.
The population mean is also 32.5.
D.
The population mean must be greater than 32.5.
Answer:
There is not enough information to make a conclusion about the population mean.
Step-by-step explanation:
Answer:
There is not enough information to make a conclusion about the population mean.
Step-by-step explanation:
Got it right on edmentum
Which types of dilation are the given scale factors? Select Expansion or Contraction to correctly describe the type of dilation for each given scale factor.
Answer:
Expansion
Contraction
Expansion
Contraction
Step-by-step explanation:
The correct type of dilation for given scale factors are 1) contraction, 2) contraction, 3) expansion 4) contraction
What is dilation?Dilation is a type of transformation in geometry, in which the original figure changes its scales, either reduce or enlarge.
Given are scale factors,
Scale factor symbolized by k,
We know that, when k > 1, the figure expands or enlarge.
When k < 1, the figure reduces or contract.
And when k = 1, the figure is congruent to the dilation.
1) -5 = (contraction)
1 > -5, therefore, figure is contraction.
2) -1/4 = (contraction)
1 > -1/4, therefore, figure is contraction.
3) 3.5 = (expanding)
1 < 3.5, therefore, figure is expanding.
4) 6/7 = (contraction)
6/7 = 0.8571 < 1, therefore, figure is (contraction)
Hence, -5 = (contraction), -1/4 = (contraction), 3.5 = (expanding) and 6/7 = (contraction)
For more references on dilation, click;
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What is the average rate of change over the interval 1≤x≤3
9514 1404 393
Answer:
3
Step-by-step explanation:
The average rate of change is the slope of the line between the points at the ends of the interval: (1, -2) and (3, 4). That is given by the slope formula ...
m = (y2 -y1)/(x2 -x1)
m = (4 -(-2))/(3 -1) = 6/2
m = 3
The average rate of change on the interval is 3.
Explore equivalent ratios by using the slider. Complete the sentences below. For every __ apples, there are 6 oranges.
Answer:
For every 2 apples, there are 6 oranges
Step-by-step explanation:
I got it on khan so trust me
(P. S. could u give me brainliest?)
The main height of a basketball team is 6 feet with the standard deviation of 0.2 feet. The team center is 6.9 feet tall. Find the center Z score. Is the score unusual?
Complete Question
The mean height of a basketball team is 6 feet with the standard deviation of 0.2 feet. The team center is 6.9 feet tall. Find the center Z score. Is the score unusual?
Answer:
Center Z score = 4.5
The score is unusual
Step-by-step explanation:
The mean height of a basketball team is 6 feet with the standard deviation of 0.2 feet. The team center is 6.9 feet tall. Find the center Z score. Is the score unusual?
The formula for z score is:
z = (x-μ)/σ, where
x is the raw score = 6.9feet
μ is the population mean = 6feet
σ is the population standard deviation = 0.2 feet
Hence:
Z = 6.9 - 6/0.2
Z = 0.9/0.2
Z = 4.5
Yes this score is unusual
HELPPPPPPP!!!!!! i need this today
Answer:
(d) 78√3
hope it is right answer for it !!
Please help me thanks
Answer:
2
Step-by-step explanation:
D
х
find the distance between each
pair of point. round your answer to
the tenths place. (3,1)and (3,7)
Answer:
6
Step-by-step explanation:
Point 1
(xA,yA) = (3, 1)
Point 2
(xB,yB) = (3, 7)
Distance between two points =
√(xB−xA)^2+(yB-yA)^2
Solution :
Distance between two points =
√(3−3)^2+(7−1)^2=
√0^2+6^2=
√0+36= √36 = 6
Distance between points (3, 1) and (3, 7) is 6
Helpppp meeee please☹️
it's B because the input is put together in only one output.
Answer:
B
Step-by-step explanation:
A function's x should not repeat, but the y can !
Input=x
Output=y
A square has a diagonal length of 13m what is the side length of the square round to the nearest centimeter?
Answer:
a≈9.19m
Step-by-step explanation:
The measure of ∠A is 12° greater than the measure of ∠B. The two angles are complementary. Find the measure of each angle.
The m∠A is __° and m∠B is __°.
Answer:
39° = m∠A
51° = m∠B
Step-by-step explanation:
Complementary angles have a sum of their measures = 90
Let x = m∠B
then x + 12 = ∠A
m∠A + m∠B = 90
x + 12 + x = 90
2x + 12 = 90
2x = 78
x = 39° = m∠A
x + 12 = 39 + 12 = 51° = m∠B
The measure of ∠A is 39°.
The measure of ∠B is 51°.
Here,
The measure of ∠A is 12° greater than the measure of ∠B.
The two angles are complementary.
We have to find the measure of each angle.
What is Complementary angle?
Complementary angles have a sum of their measures is 90°.
Now,
The measure of ∠A is 12° greater than the measure of ∠B.
Let m∠B = x
Then, ∠A = x + 12
The two angles are complementary.
Hence,
m∠A + m∠B = 90
x + 12 + x = 90
2x + 12 = 90
2x = 78
x = 39°
And, x + 12 = 39 + 12 = 51°
Hence, The m∠A is 39° and m∠B is 51°.
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matt is standing on top of a cliff 305 feet above a lake. the measurement of the angel of depression to a boat on the lake is 42 degrees. how far is the boat from Matt?
Answer:
Distance of boat from Matt = 274.5 ft (Approx.)
Step-by-step explanation:
Given:
Height of cliff = 305 ft
Angle = 42°
Find:
Distance of boat from Matt
Computation:
Tan 42° = Distance of boat from Matt / Height of cliff
0.90 = Distance of boat from Matt / 305
Distance of boat from Matt = 274.5 ft (Approx.)
In circle O, central angle BOC has a measure of 115°. Find the measure of arc BAC. In your final answer, include all of your work.
Answer:
m<BOC = m<DOA= 115*
m<BOC + m<COD=180*
115* + m<COD + 180* ---> m<COD + 65*
m<COD +m<BOA + 65*
m<COD + m<DOA + m<AOB + m<BAC
m<BAC + 65* + 115* + 65* =245*
m<BAC = mBAC = 245*
Step-by-step explanation:
The measure of arc BAC of the circle O will be 245°.
What is a circle?It is the close curve of an equidistant point drawn from the center. The radius of a circle is the distance between the center and the circumference.
In circle O, the central angle ∠BOC has a measure of 115°.
The measure of arc BAC will be given as,
∠BOC + arc BAC = 360°
115° + arc BAC = 360°
arc BAC = 360° - 115°
arc BAC = 245°
The measure of arc BAC of the circle O will be 245°.
More about the circle link is given below.
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x^2-4x+3=0 determine the nature of the roots
x^2 - 4x + 3 = 0
Factor the left side.
What two numbers when multiplied yield 3 but when added yield the middle coefficient -4?
How about -1 times -3?
Yes, (-1)(-3) is 3 but when added yield -4.
(x - 3)(x - 1) = 0
Set each factor to 0 and solve for x.
x - 3 = 0
x = 3
x - 1 = 0
x = 1
The word root is just another word for solution or the zero of a polynomial.
Answer: x = 1 or x = 3 are the roots.
Expressed in simplest radical form, the product of √6 and √15 is