Answers
Step-by-step explanation:
1.
[tex]a = \frac{1}{2} b \times h \\ \frac{1}{2} \times 8 \times 7 \\ a = 4 \times 7 = 28 {cm}^{2} [/tex]
2.
[tex]a = \frac{1}{2} b \times h \\ a = \frac{1}{2} \times 10 \times 10 \\ a = 10 \times 5 = 50 {ft}^{2} [/tex]
Related Questions
The width of a rectangle measures (4d – 8) centimeters, and its length measures
(7d – 3) centimeters. Which expression represents the perimeter, in centimeters, of
the rectangle?
Answers
Answer:
(22d-22) cm
Step-by-step explanation:
perimeter= 2×(4d-8+7d-3)
= 2× (11d-11)
(22d - 22) cm
Answer:
(22d-22)cm
Step-by-step explanation:
Perimeter = 2 x (width + Length)
= 2 x [(4d – 8) + (7d – 3)]
= 2 x (11d-11)
= (22d-22)cm
Which dot plot shows a sample that is most representative of the number of pets in a household?
questions
PLUS 1st who answers gets brainlyest
A B C D
Answers
Answer:
C dot plot shows a sample that is most representative of the number of pets in a household.
Hilary can ride her bike 16.43 mph. How far can she ride in three hours?
Answers
Answer:
49.29
Step-by-step explanation:
16.43x3=49.29
what is the area of a rectangle of 5/9 m in length and 7/8 m in width
Answers
Answer:
35/72 [tex]m^2[/tex]
Step-by-step explanation:
Rectangle Formula: [tex]l*w=Area[/tex]
Switch the variables with the numbers given:
[tex]\frac{5}{9} *\frac{7}{8} =Area[/tex]
Multiply the top and bottom:
5*7 = 35
9*8 = 72
35/72 = Area
NEED HELP FAST PLS CLICK TO SEE
Answers
That’s the answer and good luck!
A teacher has 50 tests to grade. She can grade 4 tests in 6
minutes. How long will it take her to grade all of the tests?
(A) 12.5 minutes
(B) 24 minutes
(C) 75 minutes
(D) 300 minutes
Answers
Answer:
c: 75 minutes
Step-by-step explanation:
50/4 = 12.5
6 x 12.5 = 75
The square canvas of a painting has an area of 64 ft2. How many feet of border should be ordered to make a frame for the painting?
4 ft
8 ft
32 ft
128 ft
Answers
1. 64/2=8 per each side
2. 8+8+8+8= 32ft ( add 8 four times as a frame covers the perimeter of the canvas)
Round to the nearest hundredth (2 decimal places) when necessary
Answers
Answer:
If it's area, then:
area = 148.2 yd²
Step-by-step explanation:
area = 19 x 7.8 = 148.2 yd²
Write a system of equations with the
solution (2, 1, 0).
Answers
2x + y - z = 5
5x - 3y + 4z = 7
-6x -7y + 2z = -19
The system of equations with the solution are 2x + y - z = 5, 5x - 3y + 4z = 7 and -6x -7y + 2z = -19.
What is a system of equations?A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
Solution to this system will give us the solution to the considered equation.
Solution to an equation is finding values of the variable included in the considered equation for which the equation considered evaluates to be true.
The system of equations with the solution (2, 1, 0) is;
2x + y - z = 5
The system of equations with the solution (5, -3, 4) is;
5x - 3y + 4z = 7
The system of equations with the solution(-6 , -7, 2) is;
-6x -7y + 2z = -19
The complete question is
"Write a system of equations with the solution (2, 1, 0) is 5, (5, -3, 4) is 7 and (-6 , -7, 2) is -19."
Learn more about equations here;
https://brainly.com/question/10413253
#SPJ2
A calculation of the value of everything that you own minus the amount of money that
you owe.
Assets
Investment
Liabilities
Net Worth
Answers
Answer:
a
Step-by-step explanation:
the answer is asset because asset is the best option to be choosed
Help? I don’t wanna fail this school year
Answers
Because it has the greatest volume
Answer:
A= 1 x 5 x3= 15 B= 3x4x2= 24 C= 2x7x1= 14 D=3x3x3= 27 D has the greastest volume.
THIS IS URGENT! I NEED THE ANSWER ASAP!! I don’t really understand how to do this. I need the answer but I’d like a detailed explanation as well! Thank you!
Question:
A map is drawn using the scale 2cm : 100 mi. On the map town B is 3.5 cm from town a, and town see is 2 cm past town B. How many miles apart are Town A and Town C?
Answer choices:
275 Miles
200 Miles
1,100 Miles
550 Miles
Thank you!
Answers
Step-by-step explanation:
yeah its A. because i aakes my math teacher.
A data set is made up of these values.
3, 3, 4, 5, 6, 7, 10
Find the interquartile range.
A. 3 - 3 = 0
B. 10 - 7 = 3
C. 7 - 3 = 4
D. 10 - 3 = 7
Answers
Answer:
C. 7 - 3 = 4
Step-by-step explanation:
Given
[tex]Dataset: 3, 3, 4, 5, 6, 7, 10[/tex]
Required
The IQR
The IQR is calculated using:
[tex]IQR = Q_3 - Q_1[/tex]
Where:
[tex]Q_3 \to[/tex] Median of the upper [tex]half[/tex]
[tex]Q_1 \to[/tex] Median of the lower [tex]half[/tex]
The dataset has 7 values, so the median is: (7 + 1)/2 =8/2 = 4th position.
Split to two, we have:
[tex]Lower \to 3, 3, 4[/tex]
[tex]Median \to 5[/tex]
[tex]Upper \to 6, 7, 10[/tex]
The lower half has 3 data; So, the median is the 2nd position.
Hence:
[tex]Q_1 = 3[/tex]
The upper half has 3 data; So, the median is the 2nd position.
Hence:
[tex]Q_3 = 7[/tex]
So, the IQR is:
[tex]IQR = Q_3 - Q_1[/tex]
[tex]IQR = 7 - 3[/tex]
[tex]IQR = 4[/tex]
Help me pls thanks so much
Answers
Answer:
B. (50.27)
Step-by-step explanation: a = (pi)r^2
8/2 = 4
4^2 = 16
16(pi) = 50.27
You're welcome :)
Answer:
=50.285714
Step-by-step explanation:
Area of a circle is equal to πr^2
diameter = 8 so radius = 4
22/7x4x4
22/7x16
=352/7
=50.285714
A group of students were asked how many sisters they have visited in their lifetime. Below is a lot plot of their responses. How many observants are in this data set?
Answers
Which description best summarizes the correlation between the calls made and the texts sent
Mm
Answers
Answer:
Weak positive
Step-by-step explanation:
From. Visual inspection of the scatter plot, the line of best fit will have a positive slope has values of x tends to increase with a corresponding increase in the value of y.
However, the points are scattered across the plotting area meaning that most of the points will be a bit farther away from the regression line. This means a weak correlation between the x and y variables will be obtained. Since the slope is positive, theb the relationship between the variables based on the scatterplot interpretation is a weak positive correlation.
Do this in simplest form :
Answers
Way 1:
3/11*4/9
Cross multiply
1/11*4/3
Answer=4/33
Or
Way 2:
3/11*4/9=
12/99
Simplify by dividing both by 3
4/33
For a given day, temperature can be recorded as hot, mild and cold while weather can be sunny or cloudy. The probability that the temperature is hot, mild and cold are .15, .55 and .30, respectively. Probability that the weather is sunny if the temperature is hot is .67, if the temperature is recorded mild is.36, and if the temperature is cold is.33. Show all the steps including identification of what formulas/properties you used. Points will be deducted from answers if only the final answer is provided.
(a) List all probabilities given in this problem, expressed in terms of events that you define.
(b) What is the probability that it is a sunny day?
(c) Given that the weather is sunny, what is the probability that the temperature is hot? mild? cold?
(d) Given that the weather is cloudy, what is the probability that the temperature is hot? mild? cold?
(e) Is the cloudy weather independent of hot weather?
Answers
Answer:
a) p(H) = 0.15
, p(M) = 0.55
, p(C) = 0.30,
p(S | H) i.e. sunny and hot = 0.67
P(c | H) i.e. cloudy and hot = 1 - 0.67 = 0.33
P( S | M) i.e. sunny and mild = 0.36
P(c | M) i.e. cloudy and mild = 1 - 0.36 = 0.64
P( S | C )i.e. sunny and cold = 0.33
P( c | C) = 1 - 0.33 = 0.67
b) ≈ 0.40
c) P ( H | S ) = 0.2513
P( M | S ) = 0.495
P(C | S) = 0.2475
d) P( H I c ) = 0.0825
Probability of mild and cloudy= 0.587
Probability of cold and cloudy = 0.335
e) No
Step-by-step explanation:
a) List All probabilities given in this problem
lets represent each condition with the first letter
Temperature : Hot ( H ) , mild ( M ) , cold ( C )
weather : Sunny ( S ) and cloudy ( c )
hence the probabilities are ;
p(H) = 0.15, p(M) = 0.55, p(C) = 0.30,
p(S | H) i.e. sunny and hot = 0.67
P(c | H) i.e. cloudy and hot = 1 - 0.67 = 0.33
P( S | M) i.e. sunny and mild = 0.36
P(c | M) i.e. cloudy and mild = 1 - 0.36 = 0.64
P( S | C )i.e. sunny and cold = 0.33
P( c | C) i.e. cloudy and cold = 1 - 0.33 = 0.67
b) probability of a sunny day
P ( s ) = P( H ) * P( S | H ) + P( M ) * P( S | M ) + P(C) * P( S | C)
= (0.15 * 0.67) + ( 0.55 * 0.36 ) + ( 0.30 * 0.33 )
= 0.3975 ≈ 0.40
c) Given the weather is sunny ( application of Bayes theorem = P(A and B) / P(B) )
P ( H | S ) = ( 0.15* 0.67 ) / 0.4
= 0.2513
P( M | S ) = 0.55 * 0.36 / 0.3975
= 0.198 / 0.4
= 0.495
P(C | S) = 0.3 * 0.33 / 0.4
= 0.099 = 0.2475
D) Given that the weather is cloudy
P( c ) = 1 - 0.4 = 0.6
P( H I c ) = ( 0.15*0.33) / 0.6
= 0.0825
Probability of mild and cloudy = (0.55*0.64) / 0.6 = 0.587
Probability of cold and cloudy = ( 0.30 * 0.67) / 0.6 = 0.335
e) The cloudy weather ( c ) is not Independent of the hot weather
because condition for independency ( P(c) x P( H ) = P( c and H) ) is not fulfilled.
PLZ ANSWER AND SHOW WORK TY :D
Answers
Answer:
[tex]-\frac{\sqrt{21}}{2}[/tex]
Step-by-step explanation:
ASTC (I use a sentence to memorize: All Students Take Calculus):
Q1 - All functions are positive
Q2 - Sine is positive (Cosecant is positive as well) (all others negative)
Q3 - Tangent is positive (Cotangent is positive as well) (all others negative)
Q4 - Cosine is positive (Secant is positive as well) (all others negative)
Applying ASTC:
Secant is negative, so it can't be in quadrant 1, and quadrant 4.
Quadrant 2 - Sine and Quadrant 3 - Tangent are left.
Cosecant is positive so it can't be in quadrant 3.
Therefore, angle x is in Quadrant 2 or QII
Secant is hypotenuse / adjacent
5 = hypotenuse (hypotenuse is never a negative number)
-2 = adjacent
use pythagorean theorem to solve for opposite (bc tan = opp / adj)
[tex](-2)^2+o^2=5^2;4+o^2=25;o^2=21;o=\sqrt{21}[/tex]
tanx = [tex]\frac{\sqrt{21}}{-2}=-\frac{\sqrt{21}}{2}[/tex]
What is the range of this function? (16, 1) (18, –1) (3, 0)
Answers
Answer:
Exactly
Step-by-step explanation:
A custodian plans to repaint some classroom bookcases. She has 5 1/4 gallons of paint. All of the bookcases are the same size and each requires 3/4 gallons of paint. How many bookcases will the custodian be able to repaint with that amount of paint?
Answers
Answer:
7 bookcases
Step-by-step explanation:
Find how many bookcases the custodian can repaint by dividing 5.25 by 0.75:
5.25/0.75
= 7
So, the custodian will be able to repaint 7 bookcases
Which of the following is the graph of the equation below?
Answers
Answer:
Step-by-step explanation:
Find the graph to the equation below plz 20 POINTS
Answers
Answer:
the last one option 4
Step-by-step explanation:
4 Which number line represents the solution to the inequality 4 + 2x <6
Answers
Answer:
h
Step-by-step explanation:
H
3√7 please help I dont understand
Answers
We have to calculate (log 675 to the base 5) × (log 3 to the base 3)
Note the following important points :
(1.) log 675 to the base 5
=> log 675 to the base ‘e’ / log 5 to the base ‘e’
=> ln 675 / ln 5
Since 675 = 5^2 × 3^3
=> ln 675 = ln [5^2 × 3^3]
=> ln (5^2) + ln (3^3)
=> 2 ln 5 + 3 ln 3
Hence, log 675 to the base 5
= ln 675 / ln 5
= [2ln 5 + 3ln 3] / ln 5
(2.) Similarly, log 3 to the base 3
=> Since the logarithm of any natural number 'x' to the base of same number 'x' is always 1 (since any natural number raised to the power '1′ is equal to the same number) ,
Thus, (log 3 to the base 3) = 1
Hence, our problem reduces to:
(log 675 to the base 5) × (log 3 to the base 3)
=> [(2ln 5 + 3ln 3) / ln 5] × (1)
=> (2ln 5 + 3ln 3) / ln 5
=> So we only require the values of natural logarithm of 3 and 5 :)
We should remember these values, or we can always use log table.
Since ln 3 = 1.098
and ln 5 = 1.609
=> 2ln 5 = 2(1.609) = 3.218
=> 3ln 3 = 3(1.098) = 3.294
Hence,
solution : (3.218 + 3.294) / 1.609
=> 6.512 / 1.609
=> 4.047
GLAD TO HELP YOU ;))
What are the odds of spinning red on the spinner shown?
Blue
Red
Green
Yellow
Red
Blue
Answers
Answer:
The answer in fractional form is 2/4, or 1/2
Step-by-step explanation:
The formula for odds is:
favorable outcomes/unfavorable outcomes
So, there are 2 reds (favorable) and 4 other colors (unfavorable) =2/4
Answer: I am Going to say 1/2
Which statement best describes the association between variable X and variable Y?
Answers
Answer:
weak, negative association
Step-by-step explanation:
If variables have a strong association, the points will form a clear line/curve. Since the graph's points are scattered and fairly chaotic, we can say the association is weak.
Positive associations trend upwards and negative associations tend downwards. This graph seems to overall tend downwards, so we can say the association is negative.
Factor the quadratic:
2x^2-7x+3
Answers
Type the correct answer in each box.
Use numerals instead of words. If necessary, use / for the fraction bar. Consider the given table.
x -2 2 5 9 f(x) 5 17 26 ?
The "?" in the table represents the number because the average rate of change on every interval of the function is .
Answers
Answer:
Step-by-step explanation:
31
You would burn about 200 calories by walking for 1 hour. About how many calories would you burn if you walk for 15 minutes? PLS HELP ME!!!
Answers
Answer:
50
Step-by-step explanation:
So first just sort the times, and the number of calories:
200 calories -> 1hr
x -> 15 mins
So an hour is 4 times the amount of 15 mins, so all you need to do is divide 200 by 4. The answer is 50