Answer:
33
I hope this helps!
slove step-by-step (5+4)×2+6-(2×2)-1
1. Two points can lie in each of two different lines.
Answer:
If two points are in a plane, then the line that contains the points is in that plane. Theorem 1: If two lines intersect, then they intersect in exactly one point. ... Two points both lie in each of two lines.
Step-by-step explanation:
The function represented by the table has the form y =acos(bx). Which of the following statements are tru
Answer:
A, C, and D
Step-by-step explanation:
What is the absolute value of a number? A. the number's distance from one on the number line B. twice the number's distance from one on the number line C. the number's distance from zero on the number line D. half the number's distance from zero on the number line
Answer:
c. the number's distance from zero on the number line
Step-by-step explanation:
absolute values definition
4. A study of air quality in a particular city by an environmental group suggest that t years from now the level of carbon monoxide, in parts per million , in the air will be A=0.2t^2+.01t+5.1.
4a. What is the current level of Carbon Monoxide, in part per million?
4b. How many years from now will the level of carbon monoxide be at 8 parts per million? Round to the nearest tenth.
Answer:
4A=5.1 per million 4B=3.8 years
Step-by-step explanation:
4A. A=0.2^2+.01t+5.1 the current level would be 5.1
4B. 8=.2t^2+.01+5.1 minus 8 .2t^2+.01-2.9
t=(-1.0+squ.0001-41-.58)/.4
t=(-.01+squ2.3201)/.4
t=3.78 t+3.78=0 =-3.78
t=-3.83 t-3.83=0 =3.83
Answer 3.83 years
Alberto uses the steps below to solve the equation One-half x minus 3 equals 7. Step 1: One-half x minus 3 plus 3 equals 7 plus 3 Step 2: One-half x plus 0 equals 10 Step 3: One-half x equals 0 Step 4: 2 (one-half) x equals 2 (10) Step 5: 1 x equals 20 Step 6: x equals 20
Answer:
Step-by-step explanation:
Alberto uses the steps below to solve the equation One-half x minus 3 equals 7. Step 1: One-half x minus 3 plus 3 equals 7 plus 3 Step 2: One-half x plus 0 equals 10 Step 3: One-half x equals 0 Step 4: 2 (one-half) x equals 2 (10) Step 5: 1 x equals 20 Step 6: x equals 20.
Which justifies Step 6 of his work? the addition property of equality the identity property of addition the multiplication property of equality the identity property of multiplication.
1/2x - 3 = 7
One-half x minus 3 equals 7.
Step 1: add 3 to both sides
1/2x - 3 + 3 = 7 + 3
One-half x minus 3 plus 3 equals 7 plus 3
Step 2:
1/2x + 0 = 10
One-half x plus 0 equals 10
Step 3: One-half x equals 10
1/2x = 10
Step 4: Multiply both sides by 2
1/2x * 2 = 10 * 2
2 (one-half) x equals 2 (10)
Step 5:
1x = 20
1 x equals 20
Step 6:
x = 20
x equals 20.
identity property of multiplication states that when 1 is multiplied to an equation, the result remains the same.
identity property of multiplication justifies Step 6 of his work
Use number sense to solve the equation. 3x + 14 = 23 A. 3 B. 6 C. 9 D. 4
Answer:
x=3
Step-by-step explanation:
3x + 14 = 23
3x=23-14
3x=9
x=9/3
x=3
option A is the correct answer
When given a raw score, explain how to use the normal curve to compare that score to the population.
Assuming you know the mean (mu) and the standard deviation (sigma), you would use the raw score (x) to get the z score through this formula
z = (x-mu)/sigma
If you get a positive z value, then the raw score is above the mean. If z is negative, then the raw score is below the mean.
The absolute value of z tells us how far away from the mean we are in terms of standard deviation.
Eg: z = -3 leads to |z| = |-3| = 3, so we're 3 standard deviations below the mean.
What is the solution to the problem a-15=22
Answer:
a=37
Step-by-step explanation:
22+15=37
Answer: The solution is: " a = 37 " .
____________________________
Step-by-step explanation:
____________________________
Given the equation:
a − 15 = 22 ; Solve for "a" .
Add "15" to each side of the equation;
to isolate "a" on one side of the equation;
and to solve for "a" :
a − 15 + 15 = 22 + 15 ;
to get:
____________________________
→ a = 37 .
____________________________
Hope this answer—and explanation—is helpful!
Wishing you the best!
____________________________
Find the sum. PLEASE HELP ASAP
Answer:
a2+8a+2
-----------------------
a3+11a2+32a+28
(all of that is a fraction)
can someone answer this question please (picture)
Answer:
31.5 units^2
Step-by-step explanation:
Rectangle area (RA) = l × w
Triangle area (TA) = (bh)/2
RA = 3 × 7
RA = 21
TA = (7 × 3)/2
TA = 21/2
TA = 10.5
(Triangles are congruent as shown by the lines on each side of the triangle so I can calculate area of both of them together as I just did)
Add areas together
21 + 10.5 = 31.5
Find the perimeter and area of the figure.
its a triangle with sides of 3m 5m and 4m
The perimeter of the figure is
meters.
The area of the figure is
square meters.
Answer:
P = 12m
A = 6m^2
Step-by-step explanation:
Perimeter is the sum of all the lengths of a shape. The lengths of the triangle are given as 3m, 4m, and 5m, so to find the perimeter we just need to add them all together. 3+4+5=12, so the perimeter of the triangle is 12m.
The area of a triangle is found by multiplying its height by its base and then dividing the result by 2. The height of the triangle is not given, but the side lengths (3,4 and 5) indicate that the triangle is a right triangle. This means we can use the middle length as the height and the shortest length as the base.
So, the height of the triangle is 4m, and the base is 3m, so to calculate the area:
(3x4)/2=12/2=6m^2.
The area of the triangle is 6m^2.
Hope this helped!
Two ice cream machines make a total of 320 gallons in a certain amount of time. Working together for the same length of time, how many gallons of ice cream can each number of machines make?
3 ice cream machines
4 ice cream machines
3 ice cream machines will make a total of 480 gallons for the same length of time
4 ice cream machines will make a total of 640 gallons for the same length of time
From the question,
We are to determine the number of gallons of ice cream that could be made.
For the quantity 3 ice cream machines will make.From the given information,
2 ice cream machines make a total of 320 gallons in a certain amount of time.
If 2 ice cream machines can make a total of 320 gallons
Then,
3 ice cream machines will make a total of x gallons in the same amount of time
x = [tex]\frac{320 \times 3}{2}[/tex]
x = 480 gallons
Hence, 3 ice cream machines will make a total of 480 gallons.
For the quantity 4 ice cream machines will make.If 2 ice cream machines can make a total of 320 gallons
Then,
4 ice cream machines will make a total of y gallons in the same amount of time
y = [tex]\frac{320 \times 4}{2}[/tex]
y = 640 gallons
Hence, 4 ice cream machines will make a total of 640 gallons.
Learn more on quantity here: https://brainly.com/question/181426
-15.6 over -4 simplify
Answer: 3.9
explanation: It's right
100 POINTS!!! Brainliest if correct, I report if the answer is absurd. Don’t answer if don’t know.
A square is shown below.
What is the perimeter of the square?
A. 23 units
B. 32 units
C. 46 units
D. 92 units
Answer: D
Step-by-step explanation:
To find the perimeter of the square, you want to first find the length of each side. Since the figure is a square, we know that each side is equal to each other. We can set the expressions equal to each other to find x.
[tex]\frac{3}{4}x-1=\frac{1}{2}x+7[/tex] [subtract both sides by 1/2x]
[tex]\frac{1}{4}x-1=7[/tex] [add both sides by 1]
[tex]\frac{1}{4}x=8[/tex] [multiply both sides by 4]
[tex]x=32[/tex]
Now that we know x, we can plug it into each expression to find teh length of each side.
[tex]\frac{3}{4}(32)-1[/tex] [multiply]
[tex]24-1[/tex] [subtract]
[tex]23[/tex]
Now that we know each side is equal to 23, we can add all the sides together to find the perimeter.
23+23+23+23=92 or 23×4=92
Since we know that the perimeter is 92 units, the answer is D.
Answer:
Dude easy it is d
Step-by-step explanation:
If you want to learn perimeter all over again listen to the perimeter song you count up all the sides that are the same.
What is expanded form 97.6
Answer:
90 + 7 + .6
Step-by-step explanation:
The expanded form is:
90 + 7 + .6
Hopefully this helps you
pls mark brainlest
Pleas help I’ll give u points
Step-by-step explanation:
Answer:
M = 25/2 it is the answer
Evaluate the function.
f(x) = x2 - 4
Find f(5)
Answer:
f(5)=21
Step-by-step explanation:
Brainliest please
PLZZZZ HELP ME FILL IN THE BLANKS!!!!!!!!!
Answer:
-51
Step-by-step explanation:
4xy + 2y^2-z
4(5)(-4) +2(-4)^2 -3
(20)(-4) + 2(-4)^2 -3
-80 +(2)(16) - 3
-80 + 32 - 3
-48-3
-51
If ΔABC ≌ ΔRPQ , ∠A = 35˚, ∠C=75˚ , Find the measure of ∠Q. *
Explanation:
The order of ABC and RPQ is important so we can match up the angles like so
angle A = angle R .... first lettersangle B = angle P .... second lettersangle C = angle Q ... third lettersMeaning that angle Q = 75 since angle C is this measure.
Answer:
∠ Q = 75
Step-by-step explanation:
The reason,
As we can see that Triangle ABC is congruent to Triangle RPQ, so that means, ∠A =∠R , ∠B = ∠P , ∠C = ∠Q
And ∠C = 75° which means, ∠Q = 75°
If my answer helped, please mark me as the brainliest!!
Thank You!
Djejsiskdksjdkdkskskskskskskdkskskskskskdkxj
Answer:
What does this even mean????
Step-by-step explanation:
this is just a bunch of random letters.
Convert 8.5 hours into second
Answer:
30600 seconds
Step-by-step explanation:
We know that,
1 hour = 3600 seconds,
to find for 8.5 hours, we simply just multiply it by 8.5,
3600 * 8.5 = 30600 (After you do the calculations)
If I am wrong please tell me,
If my answer helped you, please mark me as the brainliest!!
Thank You !
Identify each true statement.
Question 5 options:
8 = |-8|
|5| = 5
-3 = |3|
-|18| = -18
2 = |2|
|-1.5| = -1.5
Answer: 8 = |-8| = True |5| = 5 = True -3 = |3| = False -|18| = -18 = False 2 = |2| = True |-1.5| = -1.5 = False
Step-by-step explanation: The bars mean that the number is always positive
simplify the following expressions
Answer:
-x + 13
Step-by-step explanation:
x - 2x + 13 =
Combine like terms, x and -2x.
= -x + 13
Answer:
13-x
Step-by-step explanation:
x-2x can alsso mean x(1-2). (1-2)=(-1). So x(-1)=-x.
So now you have -x+13, or to make it shorter, 13-x.
15points+ brainliest! i know this isn’t the right subject but nobody helps law !! write a verdict pls :(!
I agree with the other persons answer.
write the number that completes the analogy. X^2 is to 121 as x^3 is to _____
Answer:
1331
Step-by-step explanation:
Since 121 is a perfect square you can take the square root of it to figure out what x equals then just take what x equals and cube it.
Write the function f as a piecewise-defined function. F(x)=|2x-8|
F(x) = {x < 4 : -(2x - 8) , x ≥ 4 : 2x - 8}
Divide 735 in the ratio 4:5:6
Answer:
196, 245, 294
Step-by-step explanation:
sum the parts of the ratio, 4 + 6 + 6 = 15 parts
Divide the total by 15 to find the value of one part of the ratio
735 ÷ 15 = 49 ← value of 1 part of the ratio, thus
4 parts = 4 × 49 = 196
5 parts = 5 × 49 = 245
6 parts = 6 × 49 = 294
what is the DOMAIN of the function graphed below
Answer:
-4<=x<infinity
Step-by-step explanation:
I believe I am right.
Ten times the difference of a number x and 8
Answer:
Expression will be 10(x - 6).
Step-by-step explanation:
Let the given number is x.
Difference of this number and 6 will be represented by
(x - 6)
Then ten times the difference of this number and 6 will be represented by
10(x - 6)
Therefore, the statement " ten times the difference of a number and six " will be represented by the expression 10(x - 6)
