Answer: $116.15
Step-by-step explanation:
We first would start with the last thing, the $38.50 Lisa has left! From reading the word problem, we can tell that she had another $38.50 she spent on a radio.She spends $7.20 (ring) + $1.95 (battery) before this and gives her mom $30.
All of these are subtractions from the initial amount:
x - 1.95 - 30.00 - 7.20 - 38.50 = 38.50
x - 77.65 = 38.50
x = $116.15
Please give brainliest! It would really help!
Dr. Reyes is examining whether exercise is linked to mood. She recruits a sample of college students and asks them to answer whether they exercised at least three times last week (yes or no) and to rate their mood in the last week (1: Not happy at all to 5: Very happy). Her results show that students who exercised in the last week also reported happier moods. Can Dr. Reyes make a causal inference from her study
The answer to whether Dr. Reyes can make a causal inference from the study is;
No, she can't make a casual inference from the study because she met only one of the three criteria's for causality.
To answer this question, we need to know the conditions for causality in statistics research because causality gives the relationships such that a change in one variable would have to result in a change in another variable.
Now, the three conditions are;
1) Covariation; This condition means that the causal variable must have to vary with with the variable it is assumed to cause in a systematic manner.
2) Temporal precedence; Thus condition simply means that cause must precede effect. In summary it denotes that the variable that has the causal effect must come before the effect that it is meant to cause.
3) Control for extraneous variables; This condition means that results of an experiment or research must not be due to factors outside of the experiment/research
Now, in our question, he fulfilled the covariation condition because the
result of the research is tied to the responses from the sample students.
However, she did not fulfill the temporal precedence because the cause of
their moods did not precede the effects in his research.
Also, she did not fulfill the condition of control of extraneous variables
because other factors outside of the research itself may have affected their
moods.
Read more at; https://brainly.com/question/10811163
What is the value of T in this exterior angle
Answer:
t =30
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the opposite interior angles.
t + (2t-28) = t+32
Combine like terms
3t -28 = t+32
Subtract t from each side
3t -28-t = t+32-t
2t -28 = 32
Add 28 to each side
2t-28+28 = 32+28
2t = 60
Divide by 2
2t/2 = 60/2
t =30
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
Exterior Angle of a triangle is equal to the sum of two opposite interior angles of the same triangle, so
[tex]t + 32 = t + 2t - 28[/tex][tex]t + 32 = 3t - 28[/tex][tex]3t - t = 32 + 28[/tex][tex]2t = 60[/tex][tex]t = 30 \degree[/tex]value of t = 30°
Simplify each expression:
( 5a^2b^3)(4ab^5)
Answer:
20a^3 b^8
Step-by-step explanation:
( 5a^2b^3 ) ( 4ab^5 )
= ( 5 . a^2 . b^3 ) ( 4 . a . b^5 )
= ( 5 . 4 ) ( a^2 . a ) ( b^3 . b^5 )
= 20 ( a^2 . a^1 ) ( b^3 . b^5 )
= 20 ( a^( 2 + 1 ) ) ( b^( 3 + 5 ) )
= 20 ( a^3 ) ( b^8 )
= 20a^3 b^8
Find the coordinate of J if the coordinate of the midpoint of JK is 12 and the coordinate of K is -4
Answer:
E
Step-by-step explanation:
What is the RANGE of the graph
R: (-4,∞)
Lowest value of y is -4 and the graph goes on upwards continuously. The equation of the function is x^2 - 4
A cricket bat is bought for $400. Later, it is sold with a loss of 15%. How much is the cricket bat sold for? =
After selling the cricket bat, how much money has been lost? Give your answer to two decimal places because it is a currency.=
Answer:
$340.00
Step-by-step explanation:
What I like to do first is find 10% of the number.
So 10% of 400 would be $40.
Then find half (5%) of the 10% ($40), which would be $20.
Add the $40 + $20 to get $60.
Then take $400 and subtract $60,
which gives you $340.00
help me pls brainliest shall be reward :(
Answer:
B
Step-by-step explanation:
A: Also could be written as 0-5: its a division.
B: Also could be written as -1(5+5). The final answer is -10 and its an addition of 5 and 5.
C: Its a multiplication
D: Similar to B, it could be written as 5-5=0. Its a division of 5 and 5.
Hope this helps! If you still have a question feel free to ask it in the comment section below!
Cheers!
Plz help it’s due tonight!!!
solve the inequality. -1/5y ≥ -2
Answer:
y≤10
Step-by-step explanation:
Answer:
10 ≥ y
step by step explanation
I need help pls tyvm :)
Answer:
16. C
17. B
Step-by-step explanation:
All you have to do is plug in the numbers into the pythagorean theorem. The Pythagorean Theorem is: [tex]a^2+b^2=c^2[/tex] Now I encourage you to try these problems out for yourself and see why they're correct. Doing these will help you solve other propblems like this. Remember the hypotenuse is alays the longest side. ;)
I need a equation written for this pleeeeeaaaassse! The constant of proportionality is 2.
but I need an equation for this, I have an attachment for you to help.
Answer:
Step-by-step explanation:
g=c
Answer:
The number of cupcakes are twice the number of guests.
g * 2 = c
I hope this helps you
Given j∥k and m∠1=40°. What is m∠6 ? Enter your answer in the box.
Answer:
140
Step-by-step explanation:
Help I’ll give brainlest
Answer:
A: 42°
B: 42°
F: 96°
Can you give me brainlest now pls
You and 3 friends are going to the country fair. You have a coupon that will save your group $20. If the total bill to get into the fair was $100, how much does one regular price ticket to the fair cost?
Answer:
30$
Step-by-step explanation:
lets assume you didn't have a coupon then the total bill would have been 120$
so for 4 friends including u the bill would have been 120$
: 4 friends = 120 $
for : 1 friend = x$
cross multiply
4x = 120 × 1
4x =120
divide both sides by the coefficient of x
x =120 \ 4
x = 30$
therefore: 1 friend = 30$
Plz help it’s due tonight!!!
What are the dimensions of the product matrix of two of these matrices?
Answer:
BD= 2 x 1 CA= 1 x 2 BC= 2 x 3
Step-by-step explanation:
Which of the following makes sense as an answer to 8.9 *7.15
Answer:
so whats the answer
Step-by-step explanation:
Leah has a points card for a movie theater. • She receives 30 rewards points just for signing up. • She earns 2.5 points for each visit to the movie theater. • She needs 50 points for a free movie ticket. Write and solve an equation which can be used to determine v, the number of visits Leah must make to earn a free movie ticket.
Answer:
2.5v+30=50
V=8
Step-by-step explanation:
Look at picture ! Determine the number of sides for the 6th shape in this pattern.
A) 6
B) 7
C) 8
D) 9
Answer: C) 8
Explanation: It seems that the first three shapes in this pattern are increasing by one side as they progress, that means they go 3 sides, 4 sides, 5 sides, etc. If this keeps going until the 6th shape, it would land on 8 sides, which is an octagon.
I hope this helps you :)
11 3 ×3 4 1 =
Help please
Answer:
Exact Form:
77/ 3
Decimal Form:
25.6
Mixed Number Form:
25 2/3
Step-by-step explanation:
the thing is 11/3 times 3 4/1
NEED ANSWERS QUICK! WILL MARK BRAINLIEST!
What is the m 12 in matrix M?
M = 8 7 4
2 0 5
a) 2
b) 7
c) 5
d) 4
What is the slope of the line that passes through the given points?
(-1, -5) and (-12, -5)
Watch out for those negative signs!
Select one:
a.
0
b.
undefined (this means you get an answer like 5/0, you CANNOT divide a number by 0!)
c.
10/13 fraction
d.
13/10 fraction
Answer:
The answer is A. 0
Step-by-step explanation:
If you graph the equation it shows a straight horizontal line and that makes it zero
Answer:
A) 0
or m = 0
Step-by-step explanation:
Slope is zero, because it's just a straight horizontal line.
You can tell when you graph it or by the fact that they both have the same y-value, in this case -5.
I hope this helps :)
Using Bing Maps, on the upper right hand corner click on STREET SIDE.
From ANY US CITY TO ANOTHER US CITY. Use at least 25 points or more.
Answer:
The penalty for not voting in New South Wales is a $55 fine. You must respond within 28 days of the issue date of the notice. You will have four options: If you voted, you can provide details of where and when using our non-voter self-service portal.
which of the following pairs are twin prime a,3 and 5
Answer:
3 and 5 are prime twin?
Huh?
PLEASE HELP I WILL GIVE BRAINLIEST
Answer:
The answer is D
Step-by-step explanation:
multiply by reciprocal
Write an equation in slope intercept form that contains the points (-6,3) and
(-2,1)..
Answer:
y= (-1/2)x+1
Step-by-step explanation:
The general equation of a line in the slope intercept form is y= mx+b, where
m = the slope, and b = y-intercept (where the line crosses the y-axis)
for points (x1 = -6, y1 = 3) and (x2 = -2, y2 = 1)
m= (y2-y1)/ (x2-x1) = (1 - 3)/ (-2 - -6) = -2 / 4 = -1/2
the equation is now y= (-1/2)x+b
substitute the x and y coordinates of any of the points in the equation
for point (-2, 1) we will have 1 = (-1/2)(-2)+b, so b=1
The equation in slope intercept form that contains the points (-6,3) and
(-2,1) is y = (-1/2)x+1
Write the word sentence as an inequality
6 times a number x is at most 47
Writing as a word sentence, the inequality is:
[tex]6x \leq 47[/tex]
6 times a number x is 6 multiplied by x, that is: [tex]6x[/tex].At most 47 means that it is less than, or equals, to 47, hence:[tex]6x \leq 47[/tex]
Hence, the desired inequality, from the given word sentence, is:
[tex]6x \leq 47[/tex]
A similar problem, in which a word sentence is written as an inequality, is given at https://brainly.com/question/11713066
Taylor states that 2,800,000 in scientific notation is 2.8 x 10 -6 because the number has six places to the right of the 2. Is Taylor's reasoning correct?
Scientific Notation is the way of writing a number or expressing them in a shorter or more compact way.
No, Taylor's resoning is incorrect because 2,800,000 = [tex]2.8 * 10^{6}[/tex]
From the question, we are given:
2,800,000 .
2,800,000 in scientific notation is [tex]2.8 * 10^{6}[/tex].
The reason the power is not to the negative 6 is that we are moving from the right-hand side to the left-hand side 6 times.
Therefore, Taylor's reasoning is incorrect.
To learn more, visit the link below:
https://brainly.com/question/22241437
is V 10 greater than, less than, or equal to 5? Explain.
Answer:
Step-by-step explanation:
It's less than because if u use the calculator with√10 it will show 3.162277660168 which is less than 5
What is the inverse of the statements below? 100 POINTS
1. If a number is divisible by 4, then it is divisible by 2
2. All whole numbers are integers
1) If a number is multiplied by 4 then it is multiplied by 2
2) All numbers below zero are negative numbers
Hope this helped you- have a good day bro cya)