Answer:
olay let's see okay the answer is D
Area is the concept of finding the space a 2D shape takes.
Different shapes have different area, and they can be calculated using different formulas.
Suppose y varies directly with x, and y = 21 when x = 3. Find x when y = 42.
I need some help on this math question:
Please help! WILL GIVE BRAINLIEST!
f the bathtub holds a total of 46.2 gallons, how many minutes would it take to fill the entire tub? Write an equation in one variable to help you solve the problem. The variable represents the unknown time in minutes.
What is the area of the triangle shown above?
Answer: 132
Step-by-step explanation:
Area of triangle = bh/2
B = 24
h = 11
So, 24*11/2
= 12*11
= 132 sq. units
Hope it helped. Pls mark me the BRAINLIEST!
Which angles are supplementary to each other? Select all that apply.
Answer:The angles which are supplementary to each other are angles 4 and 5,4 and 3
Step-by-step explanation:Supplementary angles are angles which,when added,gives 180 degrees as the sum. In the options given, angles 3 and 1,4 and 1 won't be considered as supplementary angles because their sun won't be equal to 180 degrees
Samantha went to a bike store to purchase a new bike. The store was having a sale. If the total purchase, not including tax was over $200, you got 25% off your purchase. And, if your total was over $250, you got 30% off your purchase. Samuel picked out a bike for $189, two t-shirts for $28 each, and a water bottle for $5.50. What was his total purchase price before tax?
Answer: 250.2
Step-by-step explanation: 250.50 divided by 30% = 0.30 Meaning subtract 30 cents from 250.5
I need some help quickly
Answer:
I- what help do u need?-
Step-by-step explanation:
I'LL GIVE BRAINLIEST!!
( True / False ) Force is used in aristocracy.
If true how?
If false why?
Answer:
true
Aristocracy is a form of government in which political power is held by a select few privileged people called aristocrats or nobles. Coming from a Greek word meaning “rule by the best,” aristocrats are considered the most qualified to rule because of their moral and intellectual superiority.
Without using a calculator, convert the fraction to a decimal.
2/4=?
To convert the fraction 2/4 to a decimal, we can perform the division 2 divided by 4 using long division or mental math.
2 ÷ 4 = 0.5
Therefore, 2/4 as a decimal is 0.5.
A mathematics teacher wanted to see the correlation between test scores and homework. The homework grade (x) and test grade (y) are given in the accompanying table. Write the linear regression equation that represents this set of data, rounding all coefficients to the nearest tenth. Using this equation, estimate the homework grade, to the nearest integer, for a student with a test grade of 31.
Homework Grade (x) Test Grade (y)
58 52
75 66
66 68
85 74
52 38
74 65
78 76
The linear regression equation that represents this set of data is given as follows:
y = 1.05x - 10.43.
The estimated homework grade for a student with a test grade of 31 is given as follows:
39.46.
How to find the equation of linear regression?To find the regression equation, also called line of best fit or least squares regression equation, we need to insert the points (x,y) in the calculator.
The points for this problem are given as follows:
(58, 52), (75, 66), (66, 68), (85, 74), (53, 38), (74, 65), (78, 76).
Inserting these points into a calculator, the equation is given as follows:
y = 1.05x - 10.43.
The estimated homework grade for a student with a test grade of 31 is x when y = 31, hence:
31 = 1.05x - 10.43
x = 41.43/1.05
x = 39.46.
More can be learned about linear regression at https://brainly.com/question/29613968
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Help me please il give 20 points!
Answer: 1. a. 15 b. 11 c. 2 d. 7 e. 5.5
2. Stem: Leaf:
1 9
2 5, 9
3 3, 3, 8
4 0, 7, 9
5 4, 5
6 1, 5
7 2, 7
8 1
3. a. 13 inches b. I'm pretty sure that it is the second quarter because there is more snow. c. The first quarter because it's section is more spread out among the numbers.
Step-by-step explanation:
evaluate 8 - 4.7 y - x ,when y = -1 and x = 2.
Answer:
10.7 = 0
Step-by-step explanation:
8 - 4.7*y - x
8 - 4.7*y - x = 0
8 - 4.7*(-1) - 2 = 0
8 + 4.7 - 2 = 0
10.7 = 0
I need your help (circle theorem question).
Answer:
b = 108
c = 72
Step-by-step explanation:
The triangle formed by the two tangents is an isosceles triangle.
180 - 72 = 108
108/2 = 54
The other two angles in the triangle are equal to 54 degrees.
A tangent always meets the radius line at a right angle. Therefore, the radius line (between b and c) meets the tangent at 90 degrees.
90 - 54 = 36
Therefore the other two angles of 'b' triangle are equal to 36 degrees.
36 x 2 = 72
180 - 72 = 108
b = 108
And therefore b is equal to 108 degrees.
b + c = 180 (because a straight line is always equal to 180 degrees)
180 - 108 = 72
So c = 72
What is the sum of the fractions? Use the number line to help find the answer.
Three-fifths + (Negative StartFraction 7 over 5 EndFraction
A number line going from negative 2 to positive 2 in increments of one-fifth.
Negative 2
Negative four-fifths
Four-fifths
2
Answer:negative four fifths
Step-by-step explanation:
please help! also does anyone know how to get rid of a warning bc i jus got one for no reason-
Find the slope and y-intercept of the line on the graph
Show your work !
[(12 ∙ 3) + 6] - 32 ÷ (9 - 6)
Answer:
\([(12 ∙ 3) + 6] - 32 ÷ (9 - 6) \\ = 42 - 3 {}^{2} \div 3 \\ = 42 - 3 \\ = 39\)
Answer:
12.3+6= 18.6
9-6= 3
18.6 - 32 = 4.6
4.6÷3= 1.5
A survey asked national park visitors to choose their favorite type of landscape.
The results are shown in the following table.
(a)Find the percentage for each type of landscape.
Type of landscape Number of park visitors Percentage
Lakeside 8160
Jungle 8880
Desert 4800
Coast 2160
(b)Construct a percent bar graph for the data.
Answer:
73%
Step-by-step explanation:
have a great day
For 6 consecutive days, Alejandro studied for 5 minutes more each day than he did the previous day. Which best represents the change in the amount of time that Alejandro studied on the first day to the amount of time he studied on the last day?
–30 minutes - This the answer guys if rong sorry
–11 minutes
11 minutes
30 minutes
Also mark me brainly please!
Answer:
I believe its 30
Step-by-step explanation:
because he studied for five minutes the first day and then added five minutes per day for 6 days so i think its 30
please answer correctly for 18 points, mathematics
Answer:
Step-by-step explanation:
Answer: Your answer is in the picture
Step-by-step explanation:
When using bar graphs x is right and y is up. An origin is the begining so 0,0 i hope that helped :).
Please elaborate
\(Simplify (2x-7)(x+3)-(-3x^{2} -4)\)
Answer:
\(5x^2 - x - 17\)
Step-by-step explanation:
Distribute the terms inside the first set of parentheses:
\((2x - 7)(x + 3) = 2x^2 + 6x - 7x - 21\)
Combine like terms:
\(= 2x^2 - x - 21\)
Simplify by adding the second part:
\(2x^2 - x - 21 - (-3x^2 - 4)\)
Subtracting a negative is the same as adding the positive equivalent:
\(= 2x^2 - x - 21 + 3x^2 + 4\)
Combine like terms:
\(= 5x^2 - x - 17\)
(2x-7)(x+3)-(-3x^[2] - 4)
====
5x^[2] -x -17
To begin simplifying this expression, we will foil the first half of it:
(2x-7)(x+3)
2x*x + 2x*3 - 7*x - 7*3
2x^[2] + 6x - 7x - 21
With this, we combine like terms:
2x^[2]-x-21
We now have
2x^[2]-x-21-(-3x^[2]-4)
We can now do the binomial distribution in the second half of the expression. Remember, the - sign in front of the parentheses means we are negating everything inside. In other words, we are multiplying -1 by everything inside the parentheses. Following this:
-(-3x^[2]-4) becomes
-1*-3x^[2] + -1*-4 = 3x^[2]+4
We have now simplified the first and second half of our expression, so we have:
2x^[2]-x-21+3x^[2]+4
And combining like terms we get
2x^[2]+3x^[2]-x-21+4 =
5x^[2] -x -17
We can use the quadratic expression to determine if the trinomial can be factored evenly, but it cannot so we have our final simplifed expression!
Draw a rate table for $7.50 per hour pay rate. Include 1-4,10,40 in your table. Also include (0, for hours too). ?What do you notice? Graph this table for x=0-5 and describe what you see
Answer:
0=0
1=$7.50
2=$15
3=$22.50
4=$30
5=$37.50
10=$75
40=$300
Step-by-step explanation:
please help (worth 10 points)
Answer:
3) CAD 160
4) CAD 163.20
Step-by-step explanation:
Q3) CAD 1= USD 0.75 OR 75 CENTS
X=USD 120
X= (120x1)/0.75
=CAD 160
Q4) 100%= CAD 160
100%+2%=y
y= (102x160)/100
= CAD 163.20
Solve the system of equations.
Add parentheses to 7 × 3 − 2 × 3 + 8 ÷ 2 to make this true:
7 × 3 − 2 × 3 + 8 ÷ 2 = 14
Answer:
7×3-(2×3+8)÷2=14
Step-by-step explanation:
7×3-(6+8)÷2=14
7×3-14÷2=14
21-7=14
-Hope this helps!
PLS MARK ME BRAINLIEST
A fruit juice recipe calls for 2 parts orange juice and 8 parts pineapple juice. Which proportion can be used to find the amount of orange juice, j, that is needed to add to 18 L of pineapple juice?
2 over 8 equals j over 18
8 over 2 equals j over 18
8 over j equals 2 over 18
16 over 18 equals j over 100
The correct proportion to use to find the amount of orange juice, j, needed to add to 18 L of pineapple juice is:
2/8 = j/18
This proportion relates the ratio of orange juice to pineapple juice in the recipe (2:8) to the amount of orange juice needed to add to 18 L of pineapple juice. By cross-multiplying, we can solve for j as follows:
2/8 = j/18
218 = 8j
36 = 8*j
j = 36/8
j = 4.5
Therefore, you would need to add 4.5 L of orange juice to 18 L of pineapple juice to create the fruit juice recipe that calls for a ratio of 2 parts orange juice to 8 parts pineapple juice.
Answer:
2 over 8 equals j over 18Step-by-step explanation
2 over 8 equals j over 18
This proportion represents the ratio of orange juice to pineapple juice in the recipe. By setting up the proportion, we can solve for the value of 'j,' which represents the amount of orange juice needed.
So, the correct proportion is:
2 over 8 equals j over 18
PLEASE TELL ME WHAT"S THE ANSWER AND SHOWM E HOW YOU GOT THE ANSWER
please help me nerds
Answer: 0.25 ( so I think you put it in between 0.2 and 0.3)
Step-by-step explanation:
There is a total of 4 counters.
so 1/4 = 0.25
The amount of white counters would be 0.75
and the amount of black would be 0.25
This would give the total probability
Answer:
0.25
Step-by-step explanation:
Since there is only one black in a total of four counters you would right it as 1/4 in equation form. In the decimal form, you would write it as 0.25. So, that means that you would put the cross in between 0.2 and 0.3.
Hope this helps :)
Maybe brainliest?
Answer 1 question correctly for 50 points!
Answer:
6 7 8 9 10
Step-by-step explanation: