Answer:
4th number = 9Step-by-step explanation:
let 4th number = X
mean = 7
observations = 5, 7, 7, X
..............................................
mean = sum of observations ÷ numbers of observations
7 = 5+7+7+X ÷ 4
28 = 19 + X
28 - 19 = X
9 = X
The mean of the four numbers is 7. Three of the numbers are 5, 7, and 7. So, the 4th number would be 9.
How to find the mean value of a data set?The mean value of the data set is the ratio of the sum of the data set's values to the number of values it has.
If the data set consists of values
[tex]x_1, x_2, ..., x_n[/tex]
, then we get the mean value as:
[tex]\overline{x} = \dfrac{x_1 + x_2 + \cdots + x_n}{n}[/tex]
The mean of the four numbers is 7. Three of the numbers are 5, 7, and 7.
let 4th number = X
Mean = 7
observations = 5, 7, 7, X
Mean = sum of observations / numbers of observations
[tex]7 = 5+7+7+X / 4\\28 = 19 + X\\28 - 19 = X\\9 = X[/tex]
Learn more about mean;
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Pls help. I’m so confused
Answer:
25 units
Step-by-step explanation:
The longest side is 12.
The two other sides of the triangle = (3 sqaured + 6 squared) (9+36) the square root of 45 is about 6.7.
6.7 x 2 = 13.4
13.4 + 12 = 25.4
25.4 rounded to the nearest unit is 25
Answer:
25
Step-by-step explanation:
Used an online triangle calculator<3 lol
Help ASAP i need the answer to this question plsss NO LINKS AND NO DOING IT JUST FOR THE POINTS Will give brainliest and just because i say don't do it just for the points doesn't mean i don't want you to do it i'm just saying that because i don't want random answers i want the right answers with work shown I need the whole page plsss its due today
On a recent math test a teacher asked for the measure of
Answer:
It equals 97°
Step-by-step explanation:
The mistake she made was she thought angle t was vertical to angle u and thus it has the same value. Vertical angles have to be across from each other and not on top of each other. So why does it equal 97? If we look at angle y it has the same value and the angles are exactly the same. Look below for the other explanation since it can't really be said by words.
DO NOT SEND ME PDFS OR LINKS WIL REPORT ANSWER CORRECTLY FOR BRAINLIEST
Which graph is misleading? Explain your answer with at least three complete sentences.
Answer:
The graph on the Right. It makes no sense whatsoever. Also, there are 2 percents on each part of the pie graph on the right. It makes more sense with one.
Step-by-step explanation:
How can you find the volume of a rectangular prism with the following dimensions: length = 7, width = 5, height = 11?
A
7 × 5 + 11
B
7 + 5 × 11
C
7 + 5 + 11
D
7 × 5 × 11
Answer:
It's D
Step-by-step explanation:
Answer is 385
pls help me with this problem :)
what is the answer ???
Answer:
yoo wouldn't it be the first one
Step-by-step explanation:
cause the prices are close to the median price
2^3 x 2^6 x 2^? = 2^12
Answer:
C
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
On a field trip, there are 8 adults and 24 students. What is the ratio of students to the total number of people on the field trip?
8 to 24
1 to 4
32 to 24
3 to 4
Answer: 32 to 24
Step-by-step explanation:
What is the greatest measure of the given data?
Answer:
3
Step-by-step explanation:
i did the test
What is the y-coordinate of point G on the coordinate grid below?
A.) 2
B.) 3
C.) 4
D.) 2.5
Ms. McCarty cuts
1/3
of a piece of construction paper. She uses
1/6
of the piece to make a flower. What fraction of the sheet of paper does she use to make the flower?
For which of these solids would you need to use pi to calculate the area? Select all that apply.
A.
Cone
B.
Sphere
C.
Cube
D.
Pyramid
E.
Cylinder
Answer:
A. Cone, B. Sphere and E. Cylinder
Step-by-step explanation:
Please hellppp, answer both problems
1) 5N in one direction and 5N in the other direction will cancel out.
= 0N
2) 3N in one direction and 5N in the same direction will amplify the force. Add them up
= 8N
here what is 50 + 50 points
[tex]\huge\boxed{\boxed{\underline{\textsf{\textbf{Answer}}}}}[/tex]
[tex]50 + 50 \\ = 2 \times 50 \\ = 100[/tex]
꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐
Answer:
100
Step-by-step explanation:50 50 100
Please help! Jack measured some segments in this figure.
{picture below}
He found that WY=8cm and MZ=3cm
Give the lengths of the following line segments:
WM:
MY:
XM:
XZ:
Answer:
WM: 4cm
MY: 4cm
XM: 3cm
XZ: 6cm
Keith has earned a 75%, an 86%, and an 83% on his tests so far this grading period. He wants to have an 80% average.
If each test is included equally in his average, what is the lowest score that Keith could earn on the next test and keep at least an 80% average?
A. 69%
B. 72%
C. 76%
D. 80%
Answer:
C. 76%
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
Simplify each expression using exponents.
Step-by-step explanation:
1. 5^2*5^6
=5^(2+6)
=5^8
2. e^2*e^7
= e^(2+7)
= e^9
3. 2a^5*6a
= 12a^6
4. 4x^2*(-5x^6
= -20x^8
At a concert 6 out of the first 20 people who entered the
concert were wearing hats. Based on this information, if
there are 800 people at the concert, how many of these
people are expected to be wearing a hat?
Answer:
240 people
Step-by-step explanation:
6/20=x/800
800*6=20x
4800=20x
240=x
Therefore, you would expect 240 people to be wearing a hat
Plz help! No links plz
How much did the two heaviest tomatoes weigh all together?
Answer:
1 and 6/8
Step-by-step explanation:
1/2 is equivalent to 4/8 when you multiply both the numerator and denominator by 2. So since there are two tomatoes that weigh 1/2 it would be 4/8+4/8= 1. Next you would add 3/8+3/8=6/8. So when you add 1 whole and 6/8 you get 1 and 6/8.
PLZZ HELP DUE BY TODAY AT 11am
Answer:
70
Step-by-step explanation:
An isosceles triangle has two equal sides, and the angles add up to 180 degrees. 180 - 70 - 40 = 100, therefore the answer is 70
pls help me!!!!!!!!!!!!!!!!!
Answer:
26.75
Step-by-step explanation:
The area of the bottom half of the shape is 11, but the top half is 15.75. Add them together and you get 26.75.
I can explain more if you need
Answer:
31.5 units²
Step-by-step explanation:
find the area of all four shapes then you add it all together
Aisha made a $2,000 deposit into an account that earns 3% annual compound interest for 2 years. What is the total amount in her account after 2 years?
plz help me
10 points
Answer:
I think b
Step-by-step explanation:
because 2x + 2x = 4x and 5 + 3 = 8
Answer:
C
Step-by-step explanation:
Area = LxW
Area = (2x+5)(2x -3)
2x · 2x = 4x²
5 · (-3) = -15
= 4x² - 15
I hoped that helped!!
no link need right answer 100 points
Answer:
3 in3
Step-by-step explanation:
1/2 x 1/2 x 1/2=1/8
1/8 x 24= 3
The surface area of this triangular prism would be calculated as
Answer:
option but not 100% sure
WILL GIVE BRAINLIST!
What is the y-intercept of the linear function shown on the graph below?
Answer:
-2
Step-by-step explanation:
The line crosses the y - int at -2
Graph each equation. Determine the solution of the system of equations. Use pencil and paper. Explain how to find the equation of a line that intersects the system of equations at the same point.
1) x=y
2) 4x= 3y - 3
9514 1404 393
Answer:
see attached
use the point-slope form
Step-by-step explanation:
Substitution works to find the solution.
4x = 3x -3
x = -3 = y
The solution is (x, y) = (-3, -3).
__
The first equation graphs as a line through the origin with a slope of 1.
The second equation graphs as a line through (0, 1) with a slope of 4/3, that is, a rise of 4 for each run of 3.
The two lines intersect at (x, y) = (-3, -3), so that point, together with the y-intercepts, can be used to draw the lines.
_____
A line that intersects point (-3, -3) can be written in point-slope form as ...
y +3 = m(x +3) . . . . . for some slope m.
If you were to choose m = -1, this becomes ...
y +3 = -(x +3)
y = -x -6 . . . . . . rearranged to slope-intercept form
Ms. Steven creates a drawing in her kitchen. Her drawing is 7cm in length and 4cm in width. The scale on the drawing is 1cm = 3ft. What is the actual area of the kitchen in square ft?
Answer:
7cm=7×3ft=21ft
4cm=4×3ft=12ft
here
length=21ft
breadth=12ft
now
area= l×b
=21ft×12ft
=252ft^2
Answer: 252 ft²
Step-by-step explanation:
The drawing's dimensions are given to be 7 cm in length, and 4 cm in width. Those values are multiplied by 3 to get the scaled drawing. This gives us 21 feet and 12 feet. When you multiply 21 feet by 12 feet, you get 252 ft². DO NOT FORGET to put the ² in the final answer.
Use the distributive property to write an expression that is equivalent to 8( a + 4 ). 8(a+4) = blank a + blank
Answer:
8a+32
8(a+4)= 8a+32
Hope it helps :D
Step-by-step explanation:
Answer:
[tex] \sf \: 8a + 32 [/tex]
Step-by-step explanation:
Now we have to,
→ Find the equivalent expression.
The property we use,
→ Distributive property.
The expression is,
→ 8(a + 4)
Let's simplify the expression,
→ 8(a + 4)
→ 8(a) + 8(4)
→ (8 × a) + (8 × 4)
→ 8a + 32
Hence, the answer is 8a + 32.