Answer:
-20*(-4)=80
Step-by-step explanation:
-20*(-4)=20*4
20*4=80
Divide 10 by t. Then, add 2.
Which of the following expressions matches the statement above?
A.
t + 10 + 2
B.
10 + (t + 2)
C.
10 + + 2
D.
10 + 2 +
When f(x)= -4x + 7 ,find f(1)
Evaluate function for given value
Answer:
f(1)=3
Step-by-step explanation:
f(1)= -4(1)+7=3
The sample mean is a statistic. True or false
Answer:
true
Step-by-step explanation:
I will give brainleist pls
Answer:
C
Step-by-step explanation:
We can immediatly rule out A and B because the Quotient is bigger than the Divisor.
We can then rule out D because 2,016 does not round to 2,200.
The answer is C. 2,184 can round to 2200 and the Divisor is bigger than the quotient.
Answer:
C
Step-by-step explanation:
This is quite simple as we can find the answer out on the first hint itself. The first hint says the divisor, 2 number in the equation or number you are dividing by, can be rounded to 50, which means it is in the range of 45-54. We can see the only divisor in that range is C. To go with the other hints, though, the dividend, first number, can be rounded to 2,200 which means it is in the range of 2,151-2,250. All of them pass that, so on to the next hint. It says the quotient, number you get as answer, is smaller than the divisor, which we found is in the range of 45-54. Answer choices A and B do not follow this as the divisors of their equation are obviously smaller than the quotient, so we can conclude C to be our answer
I need help with this i cant cuaet understand it.
Answer:
Seattle is more likely to have rain.
Step-by-step explanation:
Seattle has a 75% chance of rain
Tacoma has a 1/4 chance of rain.
100% = 4/4
75% = 3/4
50% = 2/4
25% = 1/4
25% < 75%
Answer:
Step-by-step explanation:
The answer is not 15
The graph below shows how the monthly rent for an apartment changed over time
Answer:
Its C. If you look at the graph and match it with the years it increases by 50
Step-by-step explanation:
Question 6 (1 point)
Which point is not included in the solution set of the system of inequalities graphed below?
LOOK AT PICTURE
Which is equivalent to the expression?
(3x - 14)^2
a. 9x^2 - 84x + 196
b. 9x^2 + 84x + 196
c. 9x^2 + 196
d. 9x^2 - 196
Answer:
A
Step-by-step explanation:
(3x - 14)^2
9x^2 - 42x -42x +196
9x^2 - 84 +196 is the correct answer
The regular polygon has radii and an apothem as shown. Find the measure of each numbered angle.
9514 1404 393
Answer:
∠5 = 60°
∠6 = 30°
∠7 = 120°
Step-by-step explanation:
Since the polygon is regular, you know that the central angle (7) is 1/3 of the circle, or 120°. The angle 5 is half that measure, so is 60°, and the angle 6 is the complement of angle 5, so is 30°. (Angle 6 is also half the inscribed angle at each vertex, said inscribed angle being 120°/2 = 60°.)
∠5 = 60°
∠6 = 30°
∠7 = 120°
11 divided by 6 please help
Answer:
1.83 (the 3 keeps going so I simplified it)
Step-by-step explanation:
11/6 = 1.8333333333 (keeps going...)
:))
Answer the question below.
Answer:
1/3
Step-by-step explanation:
A certain test preparation course is designed to help students improve their scores on the USMLE exam. A mock exam is given at the beginning and end of the course to determine the effectiveness of the course. The following measurements are the net change in 3 students' scores on the exam after completing the course:
15,20,18
Using these data, construct a 90% confidence interval for the average net change in a student's score after completing the course. Assume the population is approximately normal.
Answer:
The 90% confidence interval for the average net change in a student's score after completing the course is (13.42, 21.92).
Step-by-step explanation:
Average change in the sample:
[tex]M_{s} = \frac{15+20+18}{3} = 17.67[/tex]
Standard deviation of the sample:
[tex]s = \sqrt{\frac{(15-17.67)^2+(20-17.67)^2+(18-17.67)^2}{2}} = 2.52[/tex]
We have the standard deviation for the sample, so the t distribution is used.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 3 - 1 = 2
90% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 2 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.9}{2} = 0.95[/tex]. So we have T = 2.92
The margin of error is:
[tex]M = T\frac{s}{\sqrt{n}} = 2.92\frac{2.52}{\sqrt{3}} = 4.25[/tex]
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 17.67 - 4.25 = 13.42
The upper end of the interval is the sample mean added to M. So it is 17.67 + 4.25 = 21.92
The 90% confidence interval for the average net change in a student's score after completing the course is (13.42, 21.92).
Madeline deposited $750 into an investment account that earns 1.5% interest compounded annually. If no deposits nor withdrawals are made, how much in dollars will be in the account after 15 years?
A $1,687.50
B $937.67
C $918.75
D $870.40
Solve for a Chocolate Chip Cookie!
Answer:
Hi! The answer to your question is x=-2 and y=3
Step-by-step explanation:
☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆
☆Brainliest is greatly appreciated!☆
Hope this helps!!
- Brooklynn Deka
Answer:
x= 4-2y and y= 2- 1/2x
now gimme my cookie
helpppp meeeee plssss i will love u forever
Answer:
hi
Step-by-step explanation:
-10s=-3-7
-10s=-10
s=1
have a nice day
3) Consider the function f defined by
f(x) = (3 - x)(4 + 3x). At what point does
the curve y=f(x) intersect the y-axis?
Answer:
(0,12)
Step-by-step explanation:
Let x = 0, solve the equation.
Someone please help me:(
Answer: 2/3 is bigger step-by-step explanation:
2/3 is 0.667 and 3/5 is 0.6
The figure below consists of a triangle, a rectangle, and a trapezoid.
What is the area of the figure in square units?
A. 39
B. 37
C. 49
D. 42
Answer:
Area of the figure = 39 square units
Step-by-step explanation:
Find the diagram attached
Area of the triangle = 1/2 * base * height
Base of triangle = 4
Height = 1 + 5 = 6
Area of the triangle = 1/2 *4 * 6
Area of the triangle = 12units²
Area of rectangle = Length * Width
Length = 4
Width = 5
Area of rectangle = 4 * 5
Area of rectangle = 20units²
Area of trapezoid = 1/2(a+b)*h
a and b are the parallel sides
h is the height
a = 2
b = 5
h = 6-4 = 2
Area of trapezoid = 1/2(2+5)*2
Area of trapezoid = 1/2*7*2
Area of trapezoid = 7units²
Area of the figure = Area of the triangle +Area of the rectangle + Area of the trapezoid
Area of the figure = 12 + 20 + 7
Area of the figure = 39 square units
A paper weight is made in the shape of a triangular pyramid. The dimensions of the paper weight are shown. A triangular pyramid. The base has a base of 9 centimeters and height of 6 centimeters. The height of the pyramid is 7 centimeters. [Not drawn to scale] The formula for the volume of a triangular pyramid is V = one-third B h. Which expression can be used to find the value of B, the area of the base of the pyramid? B = one-half (9) (6) B = (9) (6) B = one-third (9) (7) B = (9) (7)
Answer:
B=one half (9) (6)
Step-by-step explanation:
I took the test
Suppose a 16-sided die was rolled. Fill in the information [6 mks]
a. The probability of rolling a number greater than but not equal to 10 is _______ as a fraction, as a ratio _______ and as a percentage ____________
b. The odds in favour of rolling an even number less than or equal to 7 are ____ : ____ whereas the odds against rolling an even number less than or equal to 7 are ____ : ____
c. What are the odds in favour of rolling a number less than 5? ____ : ____
Answer:
No idea
Step-by-step explanation:
Someone please help me! I really need help I’ll mark brainliest
Answer:
it is B
Step-by-step explanation:
trust me i know this is right 100%
MUST HELP!!!! (+10 POINTS +BRANILEST +5 STARS +THANKS ON PROFILE)
any absurd answers will result in a ban.
Answer:
Imagery
Imagery includes language that appeals to all of the human senses, including sight, hearing, taste, touch, and smell.
I think its imagery because the narrator describes that the character stood firmly, was held, rootless in mid air, etc..
Step-by-step explanation:
:))
In a recent year, 21.4% of all registered doctors were female. If there were 45,700 female registered doctors that year, what was the total number of
registered doctors?
Round your answer to the nearest whole number.
Answer:
268396
Step-by-step explanation:
given that in a recent year 21.2% of all registered doctors were female. hence final answer is that there are total approx 268396 registered doctor's.
please answer asap! no scam links or scam comments or reported.
Answer:
d) 2
because all the figures +2
what is the answer pss help mw | -4 | _____ -4
HELP!!!
FIRST TO ANSWER GETS BRAINLEST!!!
Jack writes the following expression to compare the temperature on two winter days.
Choose >, < or = from the drop-down menu to make the statement true.
-2°C Choose...
-5°C
Answer:
-2 Celsius >-5 Celsius is the answer.
Answer:
-2 > -5
Step-by-step explanation:
think about which of the two numbers is nearest to 0
8pq+20qr-16s factorise plz
Answer:
asd
Step-by-step explanation:
sadasdasdasdasnst465557
Answer:
Step-by-step explanation:
math question helppppppppp
Answer:
it would be 17 m second one is 20inch third one is 6 meters
Step-by-step explanation:
np give it a heart
Answer:
1st) area = 12 x 3.7 = 44.4 m²
2nd) area = 24 x 18 = 432 in²
3rd) area = 7.3 x 5 =36.5 m²
Step-by-step explanation:
Which fraction is equivalent to 2/3? A. 4/9 B. 18/21 C.6/8 D. 16/24
Answer:
16/24
Step-by-step explanation:
2 x 8 = 16
3 x 8 = 24