Below is a list of equations and expressions.
1.
5(x + 3) = 25
2.
3 + x = -9
3.
X +5
3
4.
3(x + 3)
Which are examples of expressions?
A 1 and 2
B 3 and 4
с
2 and 3
D
3 only
Answer:
The answer is B.
Step-by-step explanation:
For a certain brand of tomato seeds, the seed package claims that it takes 87 days after planting for the tomato plants to produce fruit. Sarah, a botanist, wanted to know whether the mean number of days for the plants to produce fruit where she lives is different from 87 days. She planted 40 seeds and recorded the number of days for each plant to produce fruit. With all conditions for inference met, the hypothesis test was conducted at the significance level a = 0.05, and the test resulted in a p-value of 0.0752. ?
Which of the following is a correct conclusion?
A. Sarah has convincing statistical evidence to conclude that the population mean number of days for the plants to produce fruit is greater than 87 days.
B. Sarah has convincing statistical evidence to conclude that the population mean number of days for the plants to produce fruit is different from 87 days.
C. Sarah does not have convincing statistical evidence to conclude that the population mean number of days for the plants to produce fruit is greater than 87 days.
D. Sarah does not have convincing statistical evidence to conclude that the population mean number of days for the plants to produce fruit is different from 87 days.
E. Sarah does not have convincing statistical evidence to conclude that the population mean number of days for the plants to produce fruit is equal to 87 days.
Answer:
D. Sarah does not have convincing statistical evidence to conclude that the population mean number of days for the plants to produce fruit is different from 87 days.
Step-by-step explanation:
The population mean, μ is given as 87
This population value is used to state the Null hypothesis ;
H0 : μ = 87
The alternative hypothesis is the opposite of the Null ; and hence, claims that the mean is different from the population mean, μ ≠ 87
H1: μ ≠ 87
The Decison level :
When Pvalue < α ; We reject the Null otherwise we fail to reject the null
The given p and α value :
P-value = 0.0752
α = 0.05
0.075 > 0.05 ; Hence ;
Pvalue > α ; We fail to reject the Null
We can thus conclude that there is not enough evidence to conclude that the population mean number of days for the plants to produce fruit is different from 87 days.
Jason drew a triangle to explain the Triangle Sum Theorem and labeled the angles 1, 2, and 3
He tore each angle off the triangle so he could move the three angles around.
What should Jason do next to explain the Triangle Sum Theorem?
Jason should line up the angles next to each other as adjacent angles to show that the 3 angles together form a straight angle.
Jason should create a new triangle by moving the angles closer together to show that the 3 angles can create other triangles.
Jason should fold each angle in half to show each angle with one half of the measure it had in the triangle.
Jason should stack the angles on top of each other to show that the 3 angles have the same measures.
Answer:
A
Step-by-step explanation:
Well B is strange. You might get them to make one complementary angle, but that has nothing to do with the Triangle sum theorem.
C is true. He is getting similar triangles, but that does not prove the Triangle sum theorem. So -- don't choose C
D is just taking up space so you get 4 choices.
The answer should be A but the problem is the tips of the angles should all come to the same place. I think it does mean A, but it is a bit awkwardly worded.
Answer:A
Step-by-step explanation:
smart person above
Can someone help me find the area of this shape.
Answer:
37 ft²
Step-by-step explanation:
The figure is composed of a triangle and a square
Therefore, area of the figure = area of the triangle + area of the square
= ½bh + s²
Where,
b = 1.5 + 4 + 1.5 = 7 ft
h = 6 ft
s = 4 ft
Plug in the values into the equation
Area of the figure = ½*7*6 + 4²
= 21 + 16
= 37 ft²
Which of the following points are solutions to the equation 3x - 4y - 8 = 12?
Select all that apply.
(0-5)
(82)
(-16-17)
(-1,-8)
(-40,-34)
Sorry I did it wrong.
Answer:
(0, -5) and (-16, -17)
Step-by-step explanation:
You can plug in the points into the function to test them.
(0, -5)
3(0) - 4(-5) - 8 = 12
20 - 8 = 12
12 = 12
(8, 2)
3(8) - 4(2) - 8 = 12
24 - 8 - 8 = 12
8 ≠ 12
(-16, -17)
3(-16) - 4(-17) - 8 = 12
-48 + 68 - 8 = 12
12 = 12
3(-1) - 4(-8) - 8 = 12
-3 + 32 - 8 = 12
21 ≠ 12
3(-40) - 4(-34) - 8 = 12
-120 + 136 - 8 = 12
8 ≠ 12
What is the median?
2, 2, 1, 3, 5, 10, 2, 5
Answer:
The Miriam is 1,2,2,2,3,5,5,10
Step-by-step explanation:
Answer:
2.5
Step-by-step explanation:
arrange the numbers in assending order.
Multiply.
−3.6(−5.4)(3)
Answer:
-3.6(-5.4)(3)
=58.32
hope it helps.
Answer:
it's answer is 58.32
hope it is helpful to you
What is 9X plus 2Y equals -14 in slope intercept form
Answer:
y = -9/2x-7
Step-by-step explanation:
9x+2y = -14
-9x -9x
2y= -9x-14
/2 /2
y= -9/2x-7
4
Acellus
Find the lateral area of this cone.
Leave your answer in terms of pie
4ft
3ft
LA = [ ? ] pie ft2
Hint: Lateral Area of a Cone = mre
Where l = slant height
Enter
Answer:12
Step-by-step explanation: I multiplied 3 times 4
The Lateral Surface Area of cone is 12 π ft³
what is Lateral Surface area of Cone?The lateral area of a cone is defined as the area covered by the curved surface of the cone. It is also called lateral surface area (LSA) or curved surface area (CSA) of a cone. A cone is a 3-D object which tapers smoothly from the flat circular base to a point. In other words, it is a shape formed by a set of line segments coming from the base that connects to a common point
example:
Find the lateral area of a cone having base radius of 21 units and height of 20 units. (Use π = 22/7)
Solution: Given that r = 21 units and h = 20 units
Thus, slant height of the cone, l = √(r2 + h2) = √(212 + 202) = √(441 + 400) = √841 = 29 units
We know, the lateral area of the cone = πrL
Lateral area of a cone = (22/7) × 21 × 29
= 22 × 3 × 29
= 1914 units2
Answer: The lateral surface area of the given cone is 1914 units2
Given:
l= 4 ft
r= 3 ft
Lateral area = πrl
Lateral area = π * 3 * 4
Lateral area = 12 π ft³
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Please help me with this questions
If anyone could help I would be so happy!
Answer: well i cant help... so dont be happy! :)
Add (-2x + 4) + (4x + 6)
A) 2x + 10
B 6x + 10
C) 2x - 2
D) 6x-2
Answer:
A. 2x + 10
Step-by-step explanation:
SOMEONE PLEASE HELP :(
Answer:
[tex](x-3)^{2} = 10[/tex]
Step-by-step explanation:
[tex]\\Question 1\\\\-2xc = -6x\\2xc = 6x\\c = \frac{6}{2} \\c = 3\\x^{2} - 6x + cx^{2} = 1 + c^{2} \\x^{2} - 6x + 3^{2} = 1 + 3^{2}\\x^{2} - 6x + 9 = 1 + 9\\x^{2} - 6x + 9 = 10\\(x - 3)^{2} = 10\\REWRITINGx^{2} - 6x = 1 is equal (x -3)^{2} = 10\\[/tex]
I hope this help!
I don't know the second one ^-^
perimeter and area of a rectangular figure has a perimeter of 34cm its length is 9cm
Answer:
Perimeter of rectangle = 32
Step-by-step explanation:
32 = 2(L+B)
L+B=16
B=16-L
B=16–9
B=7
AREA = L*B
AREA = 63sq.cm
Use the graph below to find the indicated function Value. y=f(x); f(4)
The value of f(4) is 3 if the graph of the function is shown in the picture, the answer is 3.
What is a function?It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
It is given that:
The graph of the function is shown in the picture.
From the graph the value of f(4) can be evaluated as follows:
y = f(x)
Plug x = 4
y = f(4)
From the graph:
Draw a vertical line from point 3 on the x-axis and when it cuts the curve draw a horizontal line when the line cuts the y-axis note the point.
y = f(4) = 3
Thus, the value of f(4) is 3 if the graph of the function is shown in the picture, the answer is 3.
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Please help me with this i need a real answer not tjose file things
Answer:
c
Step-by-step explanation:
There are 60 pupils who joined the Math Quiz Competetion. 40 were boys and 20 were girls. During the Awarding ceremony, it was found out that 20% of the boys and 15% of the girls won and received prizes. How many received prizes?
Please Answer In English
No link Kailangan ko na po ngayon!! :)
Answer:
8 pupils received prices
Step-by-step explanation:
20% of 40 = 8 (8 boys)
15% of 20 =3 (3 girls)
8+3 = 11
Answer:
21 pupils received the prizes.
Step-by-step explanation:
20% +15% =35%
35/100 of 60 =21.
Jorge is standing at a horizontal distance 25 feet away from the base of a building his eyes level is 5.5 feet above the ground looking up at the angle of elevation of 65 he notices a window washer on the side of the building
Answer:
59.11 ft
Step-by-step explanation:
Evan is thinking of a number that contains the digit 2 The digit 2 in Evan's number has 10 times the value of the
digit 2 in the number 328,907.
Which number could be the number that Evan is thinking of?
127,905
145,298
290,837
352,987
Answer:
C, 290,837
Step-by-step explanation:
The 2 in his number is 10x the 2 in the number 328,907
This means you need to move the number to the left once, hence it being in the hundred thousands.
290,837 is the final answer.
Which is a rational function?
Answer:
C is a rational function
In a cookie jar, 1/4 of the cookies are choclate chip, and 1/2 of the rest are peanut butter. What fraction of all the cookies is peanut butter? ( If you answer this show your work)
Answer:
4
Step-by-step explanation:
What is 32 divided by 4 to the second power plus 35-20 divided by 5
4^2•2^-3 =
2
1/2
-128
1
3
16
Which expression is equivalent to 3/64a6b7c9?
O zabo (V4a?b°c)
4a²b2c (VD
Baºbc* (V50
Ba?b%cº (PD)
Answer:
Step-by-step explanation:
The equivalent expression is,
⇒ 4a²b²c³ ∛b
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The expression is,
⇒ ∛64a⁶b⁷c⁹
Now, We can simplify the expression as;
⇒ ∛64a⁶b⁷c⁹
⇒ ∛64a⁶b⁷c⁹
⇒ ∛4³ (a²)³ (b²)³ (b) (c³)³
⇒ 4a²b²c³ ∛b
Thus, The equivalent expression is,
⇒ 4a²b²c³ ∛b
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Find the surface area of the triangular prism. The base of the
prism is an isosceles triangle.
45 cm, 37cm, 35cm, 24cm
Answer:
5,250 cm²
Step-by-step explanation:
Surface area of triangular prism = bh + (s1 + s2 + s3)L
Where ,
b = 24 cm
h = 35 cm
s1 = 37 cm
s2 = 37 cm
s3 = 24 cm
L = 45 cm
Plug in the values
Surface area = 24*35 + (37 + 37 + 24)45
= 840 + 4,410
= 5,250 cm²
Question 1 of 10
Using the graph below, select all statements that are true.
.
+10
O A. (5.1) = 5
OB. This graph is one-to-one.
C. f(0.6) = 0
D. This is the graph of the greatest integer function,
E. (-3.2) = -3
SUBMIT
Answer:
the answer is going to be b
Find the measure of minor arc QN.
QN = 142°
A semicircle will always be equal to 180°, and we have two measures for semicircle QO.
[tex]QO = 180\\MN = 90\\NO = 38\\\\QM = QO - MN - NO\\QM = 180 - 90 - 38\\QM = 52\\\\QN = QM + MN\\QN = 52 + 90\\QN = 142\\[/tex]
.........................................
Answer:
Whats wrong??
Step-by-step explanation:
Answer:
you ok ?
Step-by-step explanation:
I dont know what the ......... means
Simplify the expression (2x- 9Xx + 6).
Answer:
2 2 + 3 − 5 4
Step-by-step explanation:
Cynthia was asked to subtract 0.223 from 0.54. Which of the following is the best estimate that cynthia can make to check her answer?