Answer:
-13.6
Step-by-step explanation:
3.8 x -2 is -9.6.
-9.6 + -4 = -13.4
Answer:
-11.6
Step-by-step explanation:
First you multiply 3.8 to -2. You will get -7.6, then you add -4. When adding a negative and another negative it is like normal addition but with negative sign. As a result, -7.6 plus -4 is -11.6.
∠1 and ∠2 form a linear pair. If m∠1 = 5x + 9 and m∠2 = 3x + 11, find the measures of both angles.
Answer:
∠1 =109
∠2= 71
Step-by-step explanation:
if they are a linear pair that means they must both (when added together) equal 180 degrees, so this means we can add them and set them equal to 180!
8x+20=180
8x=160
x=20
then we just input them!
m∠1 = 5(20) + 9 = 109
m∠2 = 3(20) + 11 = 71
Lorna is ordering more supplies she need to have the required supply amount how many covers does she need to order
Answer:
probaly about 3
Step-by-step explanat
5. Given that ABD and DBC form a linear pair, find the value of x if ABD = x° and DBC =80°.
Step-by-step explanation:
ABD+DBC=180°
x+80°=180
x=100°
NEED HELP NOW PRETTY PLEASE Find an irrational number that is between 7.7 and 7.9. Explain why it is irrational. Include the decimal approximation of the irrational number to the nearest hundredth.
Answer:
7.83539(never ending)....it is an irrational because it is not a repeating decimal and it is never ending...it cannot be turned into a fraction.
the decimal equivalent rounded to the nearest hundredth is : 7.84
(x²y³3)
What is the answer pls
Answer:
x•x•y•y•y•3
Step-by-step explanation:
I think you would have to put it in expanded form so the answer I gave should be correct.
Answer:
3x^2y^3
Step-by-step explanation:
Simplify the expression.
will you get the same number of factors if you multiply a prime number by itself
Answer:
Well i'm not very sure.. but to my knowledge, yes!
Step-by-step explanation:
2x+3y=7 solve for y.
Answer:
[tex]y=\frac{7}{3}-\frac{2}{3}x[/tex]
Step-by-step explanation:
To solve for y, we will have to get y by itself on one side of the equation, with all of the other variables and values on the other side.
2x + 3y = 7
Subtract 2x to both sides of the equation.
3y = 7 - 2x
Divide both sides by 3.
[tex]y=\frac{7}{3}-\frac{2}{3}x[/tex]
And now we have solved for y.
I hope you find my answer helpful.
One month the family decides to shop around for "best buys" at different supermarkets
They are able to reduce the amount they spend on food from $700 that month to $615
What percent of their monthly income did they save? (Round your answer to the nearest
whole percent)
Answer:
12%
Step-by-step explanation:
85/700 × 100 = 12.14
what property is this?
Answer:
i thinl its distributive property
Answer:
reflexive
reflexive property states that a number is equal to itself
hope this helps
Σ (4m2 + 4)
= 1
how do i rewrite each series as a sum?
Answer:
what does that E thing mean
Step-by-step explanation:
All pictures are below please help Sandi had the following problem on her math test: . She showed her work on the test as follows: Given: Step 1: Step 2: Step 4: Step 5: In at least two paragraphs, explain the steps Sandi took to arrive at her answer. If she made any errors in her process clearly explain what she did wrong and how she could have made the error. If there is an error, provide the correct steps in your explanation of Sandi’s work. Use correct math terminology wherever appropriate.
Answer/Step-by-step explanation:
The basic rule of maths operation used by Sandi, is the PEMDAS Rule.
Maths operations like the one Sandi was given must follow this rule. According to the rule:
P - Parentheses, solve everything you have in the parentheses first.
E - Exponents, do the exponents.
M - Multiplication or
D - Division operation should come next.
A - Addition or
S - Subtraction comes last.
Let's apply this rule to see if Sandi rightly applied the PEMDAS Rule:
Step 1:
6*4 + 2 ÷ 2 - 7 (given)
Step 2: perform operation involving Multiplication first according to PEMDAS Rule.
24 + 2 ÷ 2 - 7 (multiplication first. I.e. 6*4 = 24)
Step 3: perform division operation next.
24 + 1 - 7 (division operation. i.e. 2÷2 = 1)
Step 4: Subtraction
24 - 6 (i.e. +1 - 7 = -6) this is where Sandi made an error.
Step 5: subtraction
24 - 6 = 18.
Sandi made a mistake in step 4 and 5. Her addition and subtraction operation was wrong. 1 - 7 = -6 not +6.
During operation like this, either subtraction or addition can come first.
.............................
i need help with this ASAP
Answer:
Step-by-step explanation:
1 and 2 are linear pairs
1 and 3 are verticle
4 and 5 are adjacent
Answer:
In order from top to bottom:
Adjacent
Vertical
Linear pair
Step-by-step explanation:
4 and 5 are Adjacent because they share a ray
1 and 3 are Vertical because they share a vertex and are the same measurement
1 and 2 are a linear pair because their angles add up to 180 degrees.
The local gym charges a monthly membership fee of $5 and $2.25 Per day
Answer:
y=2.25x+5, where y is the total cost and x is the number of days
What is a solution set?
dude just do sum on here and your good
Answer:
what sum tell..........
Answer:
12345678912345678912
Eleven less than seven times a number is five more than six times the number. Find the number.
Answer
x = 16
Step-by-step explanation:
7x-11=6x+5
Simplify and determine the coefficient of (- 2/3x)(-x)(3y)(-2x)
2x2= please get it right
Answer:
2x2 is equal to 4 for sure
"8 cm I Circumference cm" can someone explain how to do this? plz?
Answer:
The area of a circle is [tex]\pi r^{2}[/tex] which is given in the question. (r is radius)
The radius is the length from the centre of the circle to the border of the circle (8cm in this case)
Area of circle:
[tex]\pi r^{2} =\pi *8^{2} =64\pi =201.06cm^2[/tex] (2 decimal places)
Circumference of circle:
[tex]\pi d[/tex] (d is diameter)
The diameter is twice the radius and it is the length of a point on the circle to the opposite point of it.
[tex]\pi d=\pi *2*8=16\pi =50.27cm[/tex] (2 decimal places)
Please help!!
What is the value of the expression
?(2^4)^2
Answer:256
Step-by-step explanation:
please help- I need this and don't understand it and some meanie didn't answer it with an acceptable answer :
Answer: [tex]|h-1.7| \le 0.5[/tex]
==========================================================
Explanation:
The endpoints of this compound inequality are 1.2 and 2.2
Add up the endpoints to get 1.2+2.2 = 3.4
Divide that result in half getting 3.4/2 = 1.7
The midpoint between 1.2 and 2.2 is 1.7
The distance from 1.7 to 1.2 is 0.5 units after we subtract the values (1.7-1.2 = 0.5). Also, from 1.7 to 2.2 is 0.5 units as well (2.2 - 1.7 = 0.5)
The compound inequality [tex]1.7 \le h \le 2.2[/tex] converts to the absolute value inequality [tex]|h-1.7| \le 0.5[/tex]
The portion h-1.7 represents the distance h is from 1.7; we want this distance to be 0.5 or smaller. The use of absolute value is to ensure the result h-1.7 is never negative.
the function h(x)=-0.2(x-6)^2+1.8 models a boys jump into a swimming pool
Answimming
Step-by-step explanation:
okay
Find the next 3 terms in the sequence -15,-11,-7,-3
Answer:
1,5,9
Step-by-step explanation:
A carpenter has a board that is 2/3 yard wide. He cuts the board into 5 pieces. If all the pieces are the same width, how wide is each piece?
Answer:
2/15 of a yard, or 4.8 inches wide each
Step-by-step explanation:
If B is the midpoint of AC, and AC = 8x – 20,
find BC.
3x - 1
A
B
C
Answer:
x = 9
Step-by-step explanation:
Since B is the midpoint, that means segment AB has to be the same length as BC.
Therefore:
[tex]2(3x-1)=8x-20[/tex]
[tex]6x-2=8x-20[/tex]
[tex]18=2x[/tex]
[tex]9=x[/tex]
which angle is supplementary
A student worked out at a gym continuously for 50 minutes. The graph shows the remaining percentage of the workout as a linear function of x, the time in minutes.
Answer:
C. Domain: All real numbers greater than or equal to 0 and less than or equal to 50. Range: All real numbers greater than or equal to 0 and less than or equal to 100Step-by-step explanation:
Refer to attachedContinuation of the question:
Which answer choice best describes the domain and range of the function for this situation?
A
Domain: All real numbers greater than or equal to 0 and less than or equal to 100 Range: All real numbers greater than or equal to 0 and less than or equal to 50B
Domain: (-2) Range: (100)C
Domain: All real numbers greater than or equal to 0 and less than or equal to 50 Range: All real numbers greater than or equal to 0 and less than or equal to 100D
Domain: (100) Range: (-2)------------
As per the graph, the domain is x-values in the interval [0, 50] minutes and the range is y-values in the interval [0, 100] percentage.
Correct answer choice is therefore:
Option CThe rest are all incorrect
Answer:
C
Step-by-step explanation:
Facts
What is the Mode of the following data set of 2 , 4, 5 ,6 ,7 ,3 ?
The mode of any data set is the number that appears most often.
In this case, no number appears more often than another.
In this data set, there is no mode.
The temperature at 6:00am is -3°F.Over the next 12 hours, the temperature increases 15°F. Then, after 5 hours, the temperature decreases 8°F. What is the temperature at 11:00pm?
Answer:
??
Step-by-step explanation:
of people of the same sex and similar ages follow a Normal distribution reasonably closely. Weights, on the other hand, are not Normally distributed. The weights of women aged 20–29 in the United States have mean 161.9 pounds and median 149.4 pounds. The first and third quartiles are 126.3 pounds and 181.2 pounds, respectively. What can you say about the shape of the weight distribution? Why?
Answer:
Right-skewed
Step-by-step explanation:
The shape of the weight distributed is skewed, because the mean and the median are not equal.
Moreover, the distribution is right-skewed because the mean is greater than the median and because the mean is influenced by the tail of large values.
