Answers
1. 12/40 or 30% chance
2. 60
Explanation: 1. Not gonna lie i searched it up
2. x/200 times 12/40 = 2400/40
Related Questions
14. Classify the figure below. Identify how many faces, vertices, and edges.
Answers
Answer:
5 faces
8 edges
5 vertices
Helppppppp mmemeeeeme plzzzz
Answers
Hope this helps you solve your math problem.
An ecologist is examining whether the number of fish caught in a large river basin has changed since a fire burned some of the surrounding forested area and vegetation along the river. Data in the form of fishing reports was available for a five-year period before the fire. From a random sample of 195 fishing reports before the fire, the mean catch was 6.3 fish with a standard deviation of 1.6. In a random sample of 143 reports three years after the fire, the mean catch was 7.1 fish with a standard deviation of 2.1.
Which of the following represents the standard error of the difference in the mean number of fish caught before and after the fire?
Answers
Answer:
The standard error of the difference in the mean number of fish caught before and after the fire is 0.2153.
or
sqrt [ (1.6^2)/195 + (2.1^2)/143 ]
6 cm
4 cm
2 cm
3 cm
What is the area of the polygon?
Answers
Answer:
36 cm^2 is the area
Explanation -->
- first, separate the polygon into two separate ones, horizontally, to make two rectangles
- NOTE : Area = length x width
- 6 times 4 = 24
- 4 times 3 = 12 (self-explanatory, you get 4 by subtracting 6 and 2, as you can see)
- 24 + 12 = 36
-- You get 36 cm^2 --
Hope this helps!! Please mark as Brainliest!
Find the length of the missing side of the right triangle shown.
Answers
Answer:
17
Step-by-step explanation:
15^2 + 8^2 = 225 + 64 = 289
[tex] \sqrt{289} [/tex]=17
Find the gradient of the line segment between the points (-3,2) and (-2,5).
Answers
Solution,
Let the points be A and B
A(-3,2)------->( X1,y1)
B(-2,5)------>( x2,y2)
For a quadratic equation where: 2++=0
a
x
2
+
b
x
+
c
=
0
Where: 2−4<0
b
2
−
4
a
c
<
0
How many solutions do you have?
State whether the solutions are rational, irrational, or non-real. Explain why.
Answers
Answer:
Solutions will be unreal
Step-by-step explanation:
Given the quadratic equation ax^2+bx+c
The discriminant of the function determines its nature of its root
Discriminant D = b^2-4ac
If D <0, it shows that the roots of the equation will be a complex value. since D is less than 0 and the square root of a negative number does not exist. Hence, the solutions will be unreal
Help Please!!!!!!!!!!
Answers
Answer:
[tex]y\leq 3x-2[/tex]
Step-by-step explanation:
A market research company conducted a survey of two groups of students from different schools. They found that students from school A spent an average of 90 minutes studying daily, while the students from school B spent an average of 75 minutes daily. They want to find out if the difference in the mean times spent studying by the students of the two schools is statistically significant. What sets shows the correct null hypothesis and alternative hypothesis?
Answers
Options:
1. Null Hypothesis: There is at least some difference in the mean times spent by the schools' students.
2. Alternative Hypothesis: The students from school B spend more time studying than the students from school A.
3. Null Hypothesis: School B students spend more time studying than School A.
4. Alternative Hypothesis: The difference in the mean times spent by the schools' students is 15 minutes.
Null Hypothesis: There is no difference in the mean times spent by the schools' students.
Alternative Hypothesis: There is at least some difference in the mean times spent by the schools' students.
Null Hypothesis: The difference in the mean times spent by the schools' students is 15 minutes.
Alternative Hypothesis: There is no difference in the mean times spent by the schools' students
Answer:
Null Hypothesis: There is no difference in the mean times spent by the schools' students.
Alternative Hypothesis: There is at least some difference in the mean times spent by the schools' students.
Step-by-step explanation:
The null hypothesis is usually represented as H0 or H1. For difference in mean between two samples, the null hypothesis is usually holds the notion that there is no difference in the mean of both samples and it is represented symbolically as:
H0 : μ1 - μ2 = 0 or H0 : μ1 = μ2
For the alternative hypothesis, it is usually the opposite of the null and while the Null holds that no difference exists, The alternative in this scenario will claim that both sample means are different or not equal. It is represented as :
H1 : μ1 ≠ μ2 or H1 : μ1 - μ2 ≠ 0
Answer: Null Hypothesis: There is no difference in the mean times spent by the schools' students.
Alternative Hypothesis: There is at least some difference in the mean times spent by the schools' students.
Step-by-step explanation:
What is the volume of this solid figure made with cubes?
Answers
Answer:
15 cubic units
Step-by-step explanation:
Use multiplication (V = l x w x h) to find the volume of a solid figure.
3*5=15
write the decimal 0.015 as a fraction (line over the 15, the 15 is repeating)
Answers
0.015 in fraction
=[tex]\frac{15}{1000}[/tex]
Simplified is
=[tex]\frac{3}{200}[/tex]
Answer:[tex]\frac{3}{200}[/tex]
HELP PLEASE ONCE MORE
Answers
Answer:
40 cubic units
Step-by-step explanation:
16x 3 = 48
48- 8 is 40
Find (g times f) (3)
f(x)=3x-2
g(x)=x^2
Answers
In the equation x +9x+ 20 = (x+ a)(x+b),b is an integer.
Find algebraically all possible values of b.
Answers
so the answer could be 4 or 5
Which number-line model represents the sum of 3/4 + (-1.75)?
Answers
Step-by-step explanation:
The fraction of -1.75 is -1 3/4
So, 3/4 + (-1 3/4) = 1.
On a two-week job, a repairman works a total of 70 hours. He charges a $75 fee plus $40 per hour. An equation shows this relationship, where x is the number of hours and y is the total fee. which number has a corresponding x coordinate of 0
A. 14
B. 70
C. 40
D. 75
please NO links.
Answers
What is the difference between 8x3-2x2+5x-7
Answers
-15
this is the answer :)
Answer:
I would say 55
Step-by-step explanation: 8x3=24-4=20+5x7=55
Find the missing dimension of the triangle. A triangle with base labeled b, height labeled 6 feet, and height labeled 14 square feet.
Answers
Answer:
4.67 feet
Step-by-step explanation:
The computation of missing dimension of the triangle is given below:
As we know that
Area of the triangle = 1 ÷ 2 × base × height
14 = 1 ÷ 2 × base × 6
14 = 3 × base
So, the base is
= 14 ÷ 3
= 4.67 feet
Here we assume the area to be 14 square feet
Answer:
4⅔ or 4.67 feet
Step-by-step explanation:
Area of a triangle is ½bh
½×b×6=14
3b=14
14÷3=4⅔
Plz show work,... need help fast please
Answers
Step-by-step explanation:
For 18:
[tex] {10}^{2} + {y}^{2} = {26}^{2} \\ 100 + {y}^{2} = 676 \\ {y}^{2} = 676 - 100 \\ {y}^{2} = 576 \\ y = \sqrt{576} \\ y = 24 \: in[/tex]
For 19
[tex] {10}^{2} + {( \frac{15}{2}) }^{2} = {c}^{2} \\ 100 + \frac{225}{4} = {c}^{2} \\ \frac{625}{4} = {c}^{2} \\ c = \sqrt{ \frac{625}{4} } \\ c = \frac{25}{2} \\ c = 12.5 \: m[/tex]
Dwayne solved 6 ÷ 1/5 by using related multiplaction expression what is a related multiplaction expresion for 6 ÷ 1/5
Answers
Answer:
30
Step-by-step explanation:
It is keep change flip
Answer:
30
Step-by-step explanation:
Check the pic
please explain
Answers
Answer:
Option C
Step-by-step explanation:
From the picture attached,
In ΔABC,
m∠BAC + y° = 180° [Linear pair of angles are supplementary]
m∠BAC = 180° - y°
m∠ABC = x° [Vertically opposite angles]
m∠ACB = z° [Vertically opposite angles]
By triangle sum theorem,
m∠BAC + m∠ABC + m∠ACB = 180°
(180 - y)° + x° + z° = 180°
x - y + z = 180 - 180
x - y + z = 0
Option C will be the answer.
Consider the system of quadratic equations
y = 3x^2 - 5x,
y = 2x^2 - x - c,
where c is a real number.
(a) For what value(s) of c will the system have exactly one solution (x,y)?
(b) For what value(s) of c will the system have more than one real solution?
(c) For what value(s) of c will the system have no real solutions?
Solutions to the quadratics are (x,y) pairs. Your answers will be in terms of c, but make sure you address both x and y for each part.
Answers
9514 1404 393
Answer:
(a) c = 4
(b) c < 4
(c) c > 4
Step-by-step explanation:
(a) The solutions to the system of equations can be found by substituting one expression for y into the other equation:
3x^2 -5x = 2x^2 -x -c
x^2 -4x +c = 0 . . . . . . . subtract the right side expression
The discriminant is
d = b^2-4ac = (4)^2 -4(1)(c) = 16-4c.
The system will have exactly one solution when d = 0.
16 -4c = 0
4 -c = 0
__
(b) There will be more than one real solution when d > 0
4 -c > 0
c < 4 . . . . two real solutions
__
(c) There will be no real solutions when d < 0.
4 -c < 0
c > 4 . . . . no real solutions
_____
Additional comment
The question posed here simply asks for a value of c. It does not ask for the solutions (x, y). We can count them without knowing exactly what they are.
Find the volume of the object
Answers
Answer:
v=(6*9*12)
Step-by-step explanation:
Answer:
[tex]volume = \frac{1}{3} (length \times breadth \times height )\\ = (12 \times 9 \times 6) \frac{1}{3} [/tex]
HOW DO YOU FIND THE ARC OF A CIRCLE????
Answers
Answer:
1. Multiply the area by 2 and divide the result by the central angle in radians.
2. Find the square root of this division.
3. Multiply this root by the central angle again to get the arc length.
Step-by-step explanation:
The values and 14 are plotted on the number line.
&
What is the approximate clifference in tenths between the two values?
1.1
Answers
Answer: 12.9
Step-by-step explanation:
A line of infinite extent whose points correspond to the real numbers according to their distance in a positive or negative direction from a point arbitrarily taken as zero. I hope this explain the answer better!
Which describes the slope of the line in the graph?
A) zero
B) positive
C) negative
D) undefined
PLEASE HELP ASAP. God bless you.
Answers
WILL GIVE BRAINLYIST FOR WHOSE RIGHT ITS TIMED TOO
Which metric unit name means “hundredth meters”?
A. millimeters
B. centimeters
C. meters
D. kilometers
Answers
Answer: Centimeters
Step By Step: 1 centimeter is equivalent to one hundredth of a meter. 1 millimeter is equivalent to one thousandth of a meter.
Answer: b
Step-by-step explanation:
A trapezoid with a height of 19 meters has a base of 26 meters and another base of 46 meters. What is the area of the trapezoid?
the area of the trapezoid is
A 342m2 B 598m2 C 684 m2D 1,368m2
Answers
Answer:684
Step-by-step explanation:
A= 1/2 h (b1+b2)
A= 1/2 19 (46+26)
A= 9.5 (72)
A=684
A 6-sided die rolled twice. Let E be the event the first roll is a 5 and F the event "the second roll is a 5".
(a) Are the events E and F independent? |
Input Yes or No: Yes
(b) Find the probability of showing a 5 on both rolls. Write your answer as a reduced fraction.
Answer:
Answers
Which statement is true?
Every term in Pattern B is 5 times the corresponding term in Pattern A.
Every term in Pattern B is 10 times the corresponding term in Pattern A.
Every term in Pattern B is 8 more than the corresponding term in Pattern A.
Every term in Pattern B is 15 the corresponding term in Pattern A.