Answer:
x=7
Step-by-step explanation:
11+3=14, x+x=2x, divided by two, x=7
Lin has 13 mystery novels. Each month, she gets 2 more. Select all expressions that represent the total number of Lin's mystery novels after 3 months.
answer:
Lin should have about 19 novels in total when you add up all the amounts she gets after 3 months.
What does this equal?
8m-6-2m-31
What is a positive conformity!
Answer:
the fact that people who conform generally do not run the risk of being ostracized by their peers
Step-by-step explanation:
An electrician needs 2 rolls of electrical wire to wire each room in a house. How many rooms can he wire with 2/3 of a roll of wire? HELP
Answer:
Step-by-step explanation:
An electrician needs 2 rolls of electrical wire to wire each room in a house. How many rooms can he wire with 2/3 of a roll of wire? HEL
An electrician needs 2 rolls of electrical wire to wire each room in a house. How many rooms can he wire with 2/3 of a roll of wire? HEL
An electrician needs 2 rolls of electrical wire to wire each room in a house. How many rooms can he wire with 2/3 of a roll of wire? HEL
An electrician needs 2 rolls of electrical wire to wire each room in a house. How many rooms can he wire with 2/3 of a roll of wire? HEL
1-sin^2 theta/cot^2 theta
Simplify
Answer:
sin²θ
Step-by-step explanation:
Using the trigonometric identities
sin²x + cos²x = 1 ⇒ cos²x = 1 - sin²x
cotx = [tex]\frac{cosx}{sinx}[/tex]
Given
[tex]\frac{1-sin^20}{cot^20}[/tex]
= [tex]\frac{cos^20}{\frac{cos^20}{sin^20} }[/tex]
= cos²θ × [tex]\frac{sin^20}{cos^20}[/tex] ( cancel the cos²θ )
= sin²θ
A graph titled position versus time has an horizontal axis time (seconds) and a vertical axis position (meters). A straight line passes from 0 seconds, 0 meters to 5 seconds, 20 meters.
Calculate the slope of the line on the graph using the formula:
m = m = v subscript 2 - v subscript 1 over x subscript 2 minus x subscript 1.
The Answer is 4 meters per second
Answer:
4
Step-by-step explanation:
You want to take the farthest coordinates ( 16/4 ), the closest coordinates to 0 ( 4/1 ), and then subtract to get 12m/3s, then divide 12m by 3s to get 4m/s.
Remember to solve for Slope is SUBTRACTING then dividing.
I hope this helps!!
Determine the type of correlation that exists in the given data set. {(45, 18), (62, 13), (72, 11), (55, 15), (38, 21), (26, 31), (93, 9), (64, 13), (29, 28), (33, 25), (49, 17)} A. A positive correlation exists between the variables in this data set. B. A negative correlation exists between the variables in this data set. C. No correlation exists between the variables in this data set. D. There is not enough information to determine what type of correlation exists between the variables in this data set.
Answer:
D: There is not enough information to determine what type of correlation exists between the variables in this data set.
Step-by-step explanation:
as if you were to place all these dots unto a graph the data will be unclear as they're too scattered to come to a conclusion if it's positive or negative
Two linear functions, f (2) and g (2) are given below. Which function represents the sum of the two functions?
f (x) = -6x + 3 and g(x) = 3.3 - 5
O f(x) + g(x) = -92 – 8
O f() + g(x) = 9x + 8
Of(x) + g(x) = 3x - 2
O f(x) + g(x) = -32 – 2
please try to correct the the question.because the second function is a constant function.i mean it has an answer but it is not found in the match.
Which number sentence is TRUE?
A. 3 ÷ 1 < 0 ÷ 3
B. 0 ÷ 3 > 3 ÷ 3
C. 3 ÷ 1 > 3 ÷ 3
D. 3 ÷ 3 < 4 ÷ 4
Answer:
i think it c but i don't know if im right
Answer:
Step-by-step explanation:
C is the answer
In AXYZ, the angle measures are in the ratio 2:4:6. What are the measures of the angles?
Answer:
Please check the explanation.
Step-by-step explanation:
Given that the measures of the Angles of the triangle ΔXYZ are in the ratio 2:4:6.
As the angles are in the proportion 2:4:6. Thus, the measure of the angles will have the same scale factor x.Also, the sum of the measure of angles in a triangle is 180°.
so
2x + 4x + 6x = 180
Add similar elements: 2x + 4x + 6x = 12x
12x = 180
Divide both sides by 12
12x/12 = 180/12
Simplify
x = 15
Therefore, the measure of the angles of a triangle will be:
2x = 2(15) = 30
4x = 4(15) = 60
6x = 6(15) = 90
Verification:
30 + 60 + 90 = 180
180 = 180
Sally has 50 pencils. 38% of them have stripes. How many pencils have stripes?
⚠️PLEASE SHOW WORK
Answer:
19
Step-by-step explanation:
Answer:
38 multiplied by 50/100 equals 19
Step-by-step explanation:
just multiply 38 and 50 then over 100 and divide then you should get 19
If 5^-x = 25, what is the value of 5^0.5x?
Answer:
1/5
Step-by-step explanation:
[tex]5^{-x}= 25\\\\5^{0.5x) = (5^{-x})^{-0.5}\\\\=(25)^{-0.5}\\\\=(25)^{\frac{-1}{2}}\\\\=(\sqrt{25})^{-1}\\\\=5^{-1}\\\\= \frac{1}{5}[/tex]
Tony Stark had 484 Iron Man suits. He wanted to divide them into groups of 22. How many groups of Iron Man suits were there?
Answer:
22
Step-by-step explanation:
Please help me I don’t have much time please look at the picture
Answer:
Just add the painted miles
2 1/6 + 1 2/3
=3 5/6
then we subtact the total miles that wanna be painted which is 6
6 - 3 5/6
=2 1/6
The answer B
The base angles of a trapezoid are two _____ angles of a trapezoid whose common side is the base.
Answer:
Consecutive
Step-by-step explanation:
Answer:
consecutive
Step-by-step explanation:
have a good day!
(x = 3)
Solve:
5х + 6 = 21
Answer:
5x+6=21 is the same as 15+6=21
Step-by-step explanation:
hope this is what you wanted :)
Help ASAP don't spam please, its about exponents
Answer:
i think A
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
[tex] \frac{64 \times {5}^{ \sqrt{25} } \times {17}^{ \sqrt{27} \times {17}^{ - \sqrt{12} } } }{2 \times {5}^{5} \times 16 \times {17}^{ \sqrt{3} } } \\ \\ = \frac{64 \times {5}^{ 5 } \times {17}^{ 3\sqrt{3} \times {17}^{ - 2 \sqrt{3} } } }{32 \times {5}^{5} \times {17}^{ \sqrt{3} } } \\ \\ = \frac{2 \times {5}^{ 5 } \times {17}^{ 3\sqrt{3} \times {17}^{ - 2 \sqrt{3} } } }{{5}^{5} \times {17}^{ \sqrt{3} } } \\ \\ = \frac{2 \times {17}^{ 3\sqrt{3} - 2 \sqrt{3} } }{ {17}^{ \sqrt{3} } } \\ \\ = \frac{2 \times {17}^{ \sqrt{3}} }{ {17}^{ \sqrt{3} } } \\ \\ = 2[/tex]
Sarah has gone to work for the past 60 days. On 39 of those days she arrived at work before 8 AM. On the rest of those days she arrived after 8:30 AM. What is the experimental probability that she will arrive at 8 AM on the next day she goes to work.
Answer:
13/20
Step-by-step explanation:
Probability is the ratio of the number of possible outcome to the number of total outcome.
Given that for the past 60 days, on 39 of those days she arrived at work before 8 AM while for the rest of those days she arrived after 8:30 AM, the probability that she will arrive at 8 AM on the next day she goes to work
= 39/60
= 13/20
In decimal, this will be expressed as 0.65 and 65% in percentage.
if y=2x+2 and 4x+3y=26m, then find the value of x^2+y^2
Answer:
x² + y² is equal to = (4 / 81)(845m² + 78m + 18)
Step-by-step explanation:
We first need to get the values of x and y, which can be done using a system of equations, substituting one of the two functions into the other:
Given:
y = 2x + 2
3x + 3y = 26m
Then:
3x + 3(2x + 2) = 26m
3x + 6x + 6 = 26m
9x + 6 = 26m
9x = 26m - 6
x = (26m - 6) / 9
Now we can solve for y:
y = 2x + 2
y = 2(26m - 6) / 9 + 2
y = 2(26m - 6) / 9 + 18 / 9
y = (52m - 12 + 18) / 9
y = (52m + 6) / 9
Now we can sum up their squares:
x² + y²
= ((26m - 6) / 9)² + ((52m + 6) / 9)²
= (676m² - 312m + 36) / 81 + (2704m² + 624m + 36) / 81
= (3380m² + 312m + 72) / 81
= (4 / 81)(845m² + 78m + 18)
Can someone answer this please. I need to answer this before class ends and it ends at 8:40
Of the 16 students in Mrs. Miller's class, 10 are girls and 6 are boys. Write a ratio
that represents the number of girls to the total number of students in the class.
Answer:
10/6 or 5/3
Step-by-step explanation:
This recipe makes 12 flapjacks.
How much of each ingredient is needed to make 18 flapjacks by following this recipe?
Recipe: Makes 12 flapjacks
140 g margarine
120 g sugar
100 ml syrup
240 g oats
50 g raisins
PLEASE HELPPP
Part 3: Decide whether each set of lengths are sides of a right triangle, answer YES or NO. Show work
to support your answer. MGSE8.6.6 (8 points each)
7.)
9m, 4m, 5m
8.) 5cm, 12cm, 14cm
Answer:
No
No
Step-by-step explanation:
In a right angled triangle :
The square of the length of the longest side is equal to the sum of the squares of the two remaining sides : - Pythagoras
That is :
a² = b² + c² (condition must be satisfied).
9m, 4m, 5m
9² = 4² + 5²
81 = 16 + 25
81 ≠ 41 (not right angled)
5cm, 12cm, 14cm
14² = 12² + 5²
196 = 144 + 25
196 ≠ 169 (not right angled)
A palm tree casts a shadow that is 28 feet long. A 6-foot sign casts a shadow 8 feet long.
How tall is the palm tree
Show your work Please
Answer: The height of the palm tree is 21 feet.
Step-by-step explanation:
We can use a ratio to solve this:
Actual height to shadow for both objects. The fraction equivalents must be equal.
6/8 = x/28 . Cross multiply
6(28) = 8x
168 = 8x Divide both sides by 8 (8's "cancel" on the right)
168/8 =8x/8
21 = x . This gives us the tree's height as 21 feet.
Another way to solve this is to use the ratios, but simplify the first fraction
6/8 = 3/4
Then multiply the length of the shadow by 3/4
3/4 × 28 = height
28÷4 = 7 7 × 3 = 21
21 feet= the height of the palm tree.
Factorise the following 5y^2-20y-8z+2yz
Answer:
[tex](5y+2z)(y-4)[/tex]
Step-by-step explanation:
[tex]5y^2-20y-8z+2yz=\\5y^2-20y+2yz-8z=\\5y(y-4)+2z(y-4)=\\(5y+2z)(y-4)[/tex]
Last summer, an ice cream shop sold a small ice cream for $1.25 and a large ice cream for $3.75. The ice cream shop decided to raise its prices this summer while keeping them proportional to last year's prices. Which of the following answer choices are possible prices for the ice cream this summer?
A.small ice cream: $2.50 , large ice cream: $5.00
B. small ice cream: $1.50, large ice cream: $4.50
C.small ice cream: $2.00, large ice cream: $4.25
D. small ice cream: $1.80, large ice cream: $7.20
Answer:C
Step-by-step explanation:
keeping proportional and thats the only answer where the difference is still $2.25
Answer:
Correct choice: B
Step-by-step explanation:
Proportions
The ice cream shop sold small ice creams for $1.25 each and large ice creams for $3.75 each.
This summer the prices will be raised at the same proportion. If x is the new price for small ice creams and y is the new price for large ice creams, then it should be satisfied:
[tex]\frac{1.25}{x}=\frac{3.75}{y}[/tex]
Let's test each option:
A.
[tex]\frac{1.25}{2.50}=0.5[/tex]
[tex]\frac{3.75}{5.00}=0.75[/tex]
B.
[tex]\frac{1.25}{1.50}=0.83[/tex]
[tex]\frac{3.75}{4.50}=0.83[/tex]
C.
[tex]\frac{1.25}{2.00}=0.625[/tex]
[tex]\frac{3.75}{4.25}=0.88[/tex]
D.
[tex]\frac{1.25}{1.80}=0.694[/tex]
[tex]\frac{3.75}{7.20}=0.52[/tex]
Correct choice: B
Find the length of a square with a perimeter of 80 yards
Answer:
20 yes
Step-by-step explanation:
80÷4=20 there are 4 sides to a square
Solve for x:
3(x - 2) = 4x + 8
Answer:
Step-by-step explanation:
3x-6=4x+8
-8-6=4x-3x
-14=x
Answer:
x = -14
Step-by-step explanation:
3(x - 2) = 4x + 8
~Distribute left side
3x - 6 = 4x + 8
~Add 6 to both sides
3x = 4x + 14
~Subtract 4x to both sides
-x = 14
~Divide -1 to both sides
x = -14
Best of Luck!
Mrs trent spends £68 on her weekly food shop.
Answer:
a. 80%
b. £34
c. £340
Step-by-step explanation:
a. We are given that Mrs Trent spent 20% of her weekly wage on food. This means she would have 80% of her weekly wage left with her.
b. 10% of Mrs Trent weekly wage:
If 20% = £68
10% = (10*68)/20 = £34
c. Let x represent weekly wage of Mrs Trent
Given that she spends £68 of x (weekly wage) on food, which is 20% of x.
This means that, 20% of x = £68
Let's find her weekly wage, x:
[tex] \frac{20}{100} * x = 68 [/tex]
[tex] 0.2x = 68 [/tex]
Divide both sides by 0.2
x = 340
Her weekly wage is £340.
Answer:
a) 80%
b) £34
c) £340
Step-by-step explanation:
A -
100% - 20% = 80%
B -
68 = 20%
34 = 10%
c -
34 = 10%
340 = 100%
as you times both sides by 10
I hope this helps :)
The ratio of boys to girls in the entire 6th grade is 3 to 2. Given this ratio, which two class compositions are possible?
Answer:
There's an infinite number of possible answers because there might be any multiplication of 3 for boys and any multiplication of 2 for girls. So, for example:
There might be 3 boys and 2 girls.
There might be 6 boys and 4 girls.
There might be 9 boys and 6 girls.
There might be 12 boys and 8 girls.
etc...
In each case the ratio stays the same - 3 : 2.
Of course there probably can't be more than a few dozens of people in one class, but theoretically we can raise the numbers up to infinite.
Step-by-step explanation:hope this help.