Mrs. Lofton created a histogram of her first two test grades for her class. if the combines the two tests, what percentage of the grades were below 70. (image below)
Answers
Answer: the answer is 84
Step-by-step explanation:
Related Questions
Factor tree for 14 i reeaallyy
Answers
Answer:
I need points lol well I kinda have no idea what ur taking abt
Answer:
the calculator i used was called calculator soup this is a website all u gotta do is search up factor calculator and it will pop up this website always helps if u want u can search up what u calculator u want at the top where it says search
You decide to build a rectangular garden in your backyard. You've designated an area of 180m^2 for your garden. Due to the configuration of your backyard, the width of the garden must be 8 meters less than the length.
Answers
Answer:
[tex]Length = 18m[/tex]
[tex]Width = 10m[/tex]
Step-by-step explanation:
Given
[tex]Area = 180m^2[/tex]
[tex]Width = Length - 8[/tex]
Required
Determine the Length and the Width
Represent Width with W and Length with L;
So, we have:
[tex]Area = L * W[/tex]
[tex]Area = L * (L - 8)[/tex]
[tex]180 = L * (L - 8)[/tex]
[tex]180 = L^2 - 8L[/tex]
[tex]L^2 - 8L - 180 = 0[/tex]
Expand
[tex]L^2 - 18L + 10L- 180 = 0[/tex]
[tex]L(L - 18) + 10(L- 18) = 0[/tex]
[tex](L + 10)(L- 18) = 0[/tex]
Split
[tex]L + 10 =0[/tex] or [tex]L - 18 = 0[/tex]
[tex]L = -10[/tex] or [tex]L = 18[/tex]
But length cant be negative:
So,
[tex]L = 18[/tex]
Recall that:
[tex]Width = Length - 8[/tex]
[tex]W = 18 - 8[/tex]
[tex]W = 10[/tex]
Hence:
[tex]Length = 18m[/tex]
[tex]Width = 10m[/tex]
The dimension of the rectangular garden is 8m by 10m
The formula for calculating the area of the rectangular garden is expressed as;
A = lw
l is the length
w is the width
If the width of the garden must be 8 meters less than the length, then;
w = l - 8
Substitute into the formula;
180 = l(l-8)
180 =l^2 - 8l
l^2-8l - 180 = 0
Factorize the result;
l(l+10)-8(l+10) = 0
(l-8)(l+10)=0
l = 8 and -10
Since A = lw
w = A/l
w = 180/8
w = 10
Hence the dimension of the rectangular garden is 8m by 10m
Learn more on area of the rectangle here:https://brainly.com/question/17416965
PLEASE HLEP !!
Question 3(Multiple Choice Worth 4 points)
(02.01)The figure shows Polygon ABCD and some of its transformed images on a coordinate grid:
D
B
2
С
0
5
3
-2-
-3-
-4
Which of the four polygons was formed by a translation of Polygon ABCD?
01
04
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Answer:
point D
Step-by-step explanation:
Really need the answer please help!!
Answers
Answer:
30 degrees
Step-by-step explanation:
1
Five friends went to the movies and each spent $5 on a ticket per movie and $2 on a bag of popcorn. They saw 2 movies. The movies also had a deal of pizza and a large bottle of soda for $12, which they split. How much did each friend pay for the movie trip and pizza?
Answers
Answer:
5+2 + 12/5 = $9.40
Step-by-step explanation:
Solve for x.
- 4.5 = - 0.5 ( x - 7.1 )
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Answer:
x= 16.1
Step-by-step explanation:
Answer:
Step-by-step explanation:
x=16.1
which expression has the same value as 50 + (-17)
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Solve for t. (t+8)= -7.1
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Answer:
-15.1
Step-by-step explanation:
you need to do this:
(t+8) = -7.1
-8. -8
t = -15.1
Please help needed asap
Answers
Answer:
So if she worked for 25 hours and has $1,000 in the bank and she needs $2,000 for the trip . Divide 25 from 1000 and you get 40. Multiple 40 by 2 and you get 80 . So she needs to work 50 hours to get $40 a day so she has 2000 by her trip
Step-by-step explanation:
Help PLS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I DON'T KNOW WHAT I AM DOING WRONG
Complete each statement from the information given and state the triangle criterion you used. If the triangles cannot be shown to be congruent, leave the box for the second triangle blank and choose for reason “Cannot be determined."
∆TIM ≅ ∆ ________ Why?
My Answer: ∆TIM ≅ ∆ EIM; by rule: SSS
Answers
Answer:
EIM
Step-by-step explanation:
simentrical side cuting.then the other side also same area
Answer:
CanNot Be Determined
Step-by-step explanation:
A number decreased by twelve is forty-five.
helpp.
Answers
Answer:
57
Step-by-step explanation:
57-12=45. Simple subtraction/addition
Please help!!!!!!!! What is the measure of angle 4?
Answers
Answer:
30°
Step-by-step explanation:
<4=<2=30
(vertical opposite angles are equal)
Answer:
30 degrees
Step-by-step explanation:
Since 4 is equal on the other side of 2, it would be congruent, which is the same as 2. So, 30 degrees.
How many four-digit whole numbers contain the digit pair "17" without other intervening digits? (Note that 2017 is one such example but 2107 is not.)
Answers
Answer:
There are 209 4-digit nu numbers with 17 as consecutive digits
Step-by-step explanation:
17xx xx represent 00 through 99, a set of {100} members.
y17z. y can be 1 through 9 {9}. z can be 0 thru 9 {10}
ww17 which includes 10 thru 99, a set of {90}
Add 100+90+10+9 to get 209 possible combinations.
Can someone please help?
Answers
Answer:
<IJL and <IJG
Step-by-step explanation:
<IJL and <IJG
ten bag of beans cost 350:00cedi find the cost of 6 bags
Answers
given 0.731
enter an equivalent fraction in the thousands
and
enter an equivalent percentage
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Lauren is running for president of the student government at UTD. The proportion of voters who favor Lauren is 0.8. A simple random sample of 100 voters is taken. What are the expected value, standard deviation, and shape of the sampling distribution of proportion (, respectively?
Answers
Answer:
[tex]\mu_{x} = 0.8[/tex]
[tex]\sigma = 0.095 [/tex]
The shape of this sampling distribution is approximately normal
Step-by-step explanation:
From the question we are told that
The population proportion is [tex]p = 0.8[/tex]
The sample size is n = 100
Generally the expected value of this sampling distribution is mathematically represented as
[tex]\mu_{x} = p = 0.8[/tex]
Generally the standard deviation of this sampling distribution is mathematically represented as
[tex]\sigma = \sqrt{ \frac{p(1- p )}{n } } [/tex]
=> [tex]\sigma = \sqrt{ \frac{0.8 (1- 0.8 )}{100 } } [/tex]
=> [tex]\sigma = 0.095 [/tex]
Generally given that the sample is large (i.e n > 30 ) and the standard deviation is finite then the shape of this sampling distribution is approximately normal
Find the unknown angle measure.
Answers
Answer:
x=80
Step-by-step explanation:
The sum of interior angles in a quadrilateral is 360°
the square represents a right angle= 90 degrees
124+66+90=280
360-280=80
x=80
Whatbis the slope of a line that is perpendicular to the line y= 2x-6? A. -2
B. 2 C. 1/6 D. -1/2
Answers
Answer:
D. -1/2
Step-by-step explanation:
When a line is perpendicular to another line the slope will be the exact opposite. For example line A = y = 3x + 5 the line perpendicular to it will be -1/3x.
So -1/2 is the slope of your perpendicular line.
Use place-value blocks to add 0.38 +0.46
Answers
Answer:
0.84 is the correct answer.
Step-by-step explanation:
Add 0 and 0 which is 0. Add 8 and 6 which is 14. And 3 + 1 + 4 which is 8. Put that all together and the answer is 0.84. Hope it helps!!!!
Answer with step-by-step explanation:
0.38 + 0.46 = 0.84
Three tenths and eight hundredths + four tenths and six hundredths = eight tenths and four hundredths
Hope this was helpful!
what is the measure of CED
Answers
Step-by-step explanation:
The measure of CED is p degree.
In triangle ABC and EDC,(Given)(Vertical opposite angles)
By AA rule of similarity,
Corresponding angles of similar triangles are same.
Therefore the measure of CED is p degree.
pls give brainest
The area of a triangle is 120-meter square, if the height is equal 10 meter, what is the value of the base?
Answers
Answer:
24 meters
Step-by-step explanation:
The equation for the area of a triangle is A=1/2BxH where B is the base and H is the height. You are given the area and the height so you need to plug those values into the equation and solve.
120=1/2Bx10
240=Bx10
24=B
Which translation is used to map triangle ABd onto triangle IGH?
Answers
Answer:
Six units to the right. Answer C
Step-by-step explanation:
The image is IGH, which is the triangle ABD shifted to the right 6 units
suppose that the life distribution of an item has the hazard rate function of what is the probability that
Answers
Answer:
that what
Step-by-step explanation:
Juan purchased 16 lemons and used 5 on the first day of making lemonade. On the second day, he purchased 12 lemons and used 11. Juan wrote this expression to find how many lemons he should have left.
Answers
Answer: He should have 12 lemons left
Step-by-step explanation:
Julie earned $130 one week and $125.50 the next week. After depositing these amounts in her account, she had a total of $335.
How much was already in her account before she deposited the $130 and $125.50?
Answers
Answer:
she had more than me
Step-by-step explanation:
Answer: $79.50
Step-by-step explanation:
Add together $130 and $125.50 to find out how much she deposited.
$130+125.50=$255.50
Now subtract the amount that was deposited from the total amount in her account.
$335−$255.50=$79.50
How to solve this without calculator?
sin-1(2/3)
Answers
Answer:-0.560
Step-by-step explanation:
What is the product of 3 x4/5
Answers
Answer:
2 2/5
Step-by-step explanation:
3 * 4/5
~Make the whole number a fraction by adding a 1 as the denominator
3/1 * 4/5
~Multiply both numerators and denominators
12/5 or 2 2/5
Best of Luck!
Answer:
12/5 :)
Step-by-step explanation:
3/1 x 4/5
3x4/1x5
12/1x5
12/5
Would 3.99. million flies or 47,000,000 ants have a greater mass
Answers
Ants
Step-by-step explanation:
Order of Operations:
List the order of operations.
1. Simplify expressions
2. Simplify exponential
3. Perform multiplication
4. Perform addition and subtraction
Simplify the following expression (one step at a time)..
-16 8 x 2^3
Answers
Answer:
-16 8 x 2^3
Step-by-step explanation:
-16 8 x 8
-16 x 8 x 8
-128 x 8
-1024
