Answer:
3
Step-by-step explanation:
It would take.him.about 3 years
Two stage floors are in the shape of isosceles trapezoids. The small stage floor in the drama room is
geometrically similar to the large stage floor in the auditorium, as shown below.
24
8
1211
Which proportin can be used to find the length of x, the large stage floor?
o
12
24
24
12+
12 I
8
24
1+12
Answer:b
Step-by-step explanation: you take the c of
The correct proportion that can be used to find x is 8 / 24 = 12 / x
The corresponding sides of the figures are taken into consideration.
The base of the smaller trapezium 12 ft correspond to the base of the bigger trapezium x ft. Therefore the ratio can be established as
12 / xThe other leg of the smaller trapezium 8 ft correspond to the other leg of the bigger trapezium 24 ft. Therefore, the ratio can be establish as
8 / 24The ratio must be equal to each other to prove the similarity . Therefore,
12 / x = 8 / 24The correct proportion that can be used to find x is 12 / x = 8 / 24
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Scores on the GRE are normally distributed with a mean of 514 and a standard deviation of 92. Use the 68-95-99.7 rule to find the percentage of people taking the test who score above 698.
The percentage of people taking the test who are above 698 is ___%
Answer:
2.5%
Step-by-step explanation:
The percentage of people taking the test who are above 698 is ___%
Empirical rule formula states:
95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ .
99.7% of data falls within 3 standard deviations from the mean - between μ - 3σ and μ + 3σ
From the question, we have:
Mean of 514 and a Standard deviation of 92
Hence:
μ ± xσ
514 ± 92x = 698
514 + 92x = 698
92x = 698 - 514
92x = 184
x = 184/92
x = 2
Hence, the data is correct and it is 2 standard deviation from the mean. Therefore, 95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ .
The question is asking us to find the percentage of people taking the test who are above 698 is calculated as:
100 - 95% /2
= 5/2
= 2.5%
The percentage of people taking the test who are above 698 is 2.5%
MADEAAA HELPPPPPPPPPPPPP MEEEEEEEEE
Answer:
7 inches
Step-by-step explanation:
9. SHOW FULL STEPS. Solve for f(-4) and f(7) of the function below
f(x)=7-2x-3x²
Answer:
f(-4) = 33
f(7) = -154
Step-by-step explanation:
In this question, you will solve the function by plugging in the given value.
Solve:
f(-4) = 7 - 2(-4) -3(-4)²
= 7 - 2(-4) - 48
= 7 + 8 - 48
= 7 - 40
f(-4) = 33
----------------------------------
f(7) = 7 - 2(7) -3(7)²
= 7 - 2(7) - 147
= 7 - 14 - 147
= 7 - 161
f(7) = -154
In a random sample of 300 people in a town, 193 were female. What is the sample portion of female
If x = -2, then x^2-7x+10 equals
0
20
28
Answer:
28
Step-by-step explanation:
Substitute x = - 2 into the expression, that is
(- 2)² - 7(- 2) + 10 = 4 + 14 + 10 = 28
BRAINLIEST AND EXTRA POINTS IF U HELP !
Gina has 26 more barrettes than Holly.
The equation g = 26 + h, where g represents the number of barrettes Gina has, and h represents the number of barrettes Holly has, shows this relationship.
If Gina has 49 barrettes, how many barrettes does Holly have?
A. 23
B. 72
C. 75
D. 19
Answer:
its A 23
Step-by-step explanation:
Answer:
hey
Step-by-step explanation:
(X-6)^2 multiply and expand
Answer:
x² - 12x + 36
Step-by-step explanation:
Given
(x - 6)² = (x - 6)(x - 6)
Each term in the second factor is multiplied by each term in the first factor, that is
x(x - 6) - 6(x - 6) ← distribute both parenthesis
= x² - 6x - 6x + 36 ← collect like terms
= x² - 12x + 36
Which equation is equivalent to x + 8 = 21? (x + 8) × 4 = 21 (x + 8) × 4 = 21 ÷ 4 (x + 8) × 4 = 21 × 2 (x + 8) × 4 = 21 × 4
Answer:
(x + 8) × 4 = 21 × 4
Explanation:
x + 8 = 21
21 - 8 = 13
(13 + 8) × 4 = 21 × 4
21 × 4 = 21 × 4
84 = 21 × 4
84 = 84
Divide. Give the quotient and the remainder
303÷4
Find the a2, a3, and a4 terms of the sequence defined as:
Answer:
[tex] a_2 =\frac{1}{2}\\\\
a_3 =2\\\\
a_2 =\frac{1}{2}[/tex]
Step-by-step explanation:
[tex]a_1 = 2......(given)\\\\
a_n =\frac{1}{a_{n-1}}\\\\
Plug\: n = 2\\
a_2 =\frac{1}{a_{2-1}}=\frac{1}{a_1}=\frac{1}{2}\\\\
Plug\: n = 3\\
a_3 =\frac{1}{a_{3-1}}=\frac{1}{a_2}=\frac{1}{\frac{1}{2}}=2\\\\
Plug\: n = 4\\
a_4 =\frac{1}{a_{4-1}}=\frac{1}{a_3}=\frac{1}{2}\\\\[/tex]
Round 0.93 to the nearest tenth.
Answer:
the answer would be 0.9
Step-by-step explanation:
when rounding anything under 5 remains the same and anything over 5 rounds up to the next number. in this case three is less than five so the 9 would remain the same
Sam's skateboard Shack rents skateboards for $12 per hour plus a nonrefundable fee of $10. Which equation can be used to find the y, the amount of dollars it would cost to rent a skateboard for x hours?
A. y= (12+10)x
B. y= 10x+12
C. y= 12x-10
D. y= 12x+10
Answer:
The Answer is D
Step-by-step explanation:
12x + 10
Find the rate, write an equation to represent the relationship, and then solve the problem. Include all three parts in your answer.
Ana scores 33 points in 3 basketball games. If she continues at the same rate, how many points will she score in 5 basketball games?
asap asap asap asap asap asap asap asap asap asap asap asap asap
Answer:
55 points
Step-by-step explanation:
If she scored 33 points in 3 games then she is scoring 11 points per game. If you multiply 11 and 5 you will get 55
Answer:
its pretty easy do it urself
Step-by-step explanation:
u just divided and mutiply
Select all the equations that have the same solution as 2x - 5 = 15
A
2x = 10
B
2x = 20
C С
2(x - 5) = 15
D
2x - 20 = 0
E
43 - 10 = 30
F 15 = 5 – 22
Answer:
Step-by-step explanation:
2x - 5 = 15
Bringing like terms on one side
2x = 15 + 5
2x = 20
Option B is the correct answer
Answer:
b) 2x = 20
c) 2(x - 5) = 15
D) 2x - 20 = 0
Explanation
2x - 5 = 15
2x = 15 + 5
2x = 20
x= 20/2
x= 10
a) 2x = 10
x= 10/2
x= 5 (which is not correct)
b) 2x = 20
x= 20/2
x = 10 (which is correct )
c) 2(x- 5) = 15
2x - 10 = 15.
2x = 15 +10
2x = 20
x = 20/2
x= 10 ( which is correct)
d) 2x - 20 = 0
2x = 20
x= 20/2
x= 10 ( which is correct)
5 < k -2 < 11 ?
-4 > y + 2 > -10 ?
5 -m < 4 or 7m > 35 ?
3 < 2p -3 < 12 ?
Answer:
[tex]7 < k < 13[/tex]
[tex]-6>y>-12[/tex]
[tex]m > 5[/tex]
[tex]3 < p < \frac{15}{2}[/tex]
Step-by-step explanation:
Given
[tex]5 < k -2 < 11[/tex]
[tex]-4 > y + 2 > -10[/tex]
[tex]5 -m < 4\ or\ 7m > 35[/tex]
[tex]3 < 2p -3 < 12[/tex]
Required
Solve
Solving (1):
[tex]5 < k -2 < 11[/tex]
The above can be represented as:
[tex]5<k -2[/tex] and [tex]k -2<11[/tex]
Solving [tex]5<k -2[/tex]
[tex]5 + 2 <k[/tex]
[tex]7<k[/tex]
Solving [tex]k -2<11[/tex]
[tex]k < 2 + 11[/tex]
[tex]k < 13[/tex]
So, we have:
[tex]7<k[/tex] and [tex]k < 13[/tex]
This can be combined as:
[tex]7 < k < 13[/tex]
Solving (2):
[tex]-4 > y + 2 > -10[/tex]
Split as:
[tex]-4 > y + 2[/tex] and [tex]y + 2 > -10[/tex]
Solving [tex]-4 > y + 2[/tex]
[tex]-4 - 2 > y[/tex]
[tex]-6 > y[/tex]
Solving [tex]y + 2 > -10[/tex]
[tex]y > -10 - 2[/tex]
[tex]y > -12[/tex]
So, we have:
[tex]-6 > y[/tex] and [tex]y > -12[/tex]
This gives
[tex]-6>y>-12[/tex]
Solving (3):
[tex]5 -m < 4\ or\ 7m > 35[/tex]
Solve for m in both cases:
[tex]5 - m < 4[/tex]
[tex]-m<4 - 5[/tex]
[tex]-m<- 1[/tex]
[tex]m > 1[/tex]
[tex]7m > 35[/tex]
Divide both sides by 5
[tex]m > 5[/tex]
So, we have:
[tex]m > 1[/tex] or [tex]m > 5[/tex]
The solution is [tex]m > 5[/tex] because [tex]5> 1[/tex]
Solving (4):
[tex]3 < 2p -3 < 12[/tex]
The above can be represented as:
[tex]3 < 2p - 3[/tex] and [tex]2p - 3<12[/tex]
Solving [tex]3 < 2p - 3[/tex]
Add 3 to both sides
[tex]3 + 3 < 2p - 3 + 3[/tex]
[tex]6 < 2p[/tex]
Divide both sids by 2
[tex]3 < p[/tex]
[tex]2p - 3<12[/tex]
Add 3 to both sides
[tex]2p - 3 + 3 < 12 + 3[/tex]
[tex]2p < 12 + 3[/tex]
[tex]2p < 15[/tex]
Solve for p
[tex]p < \frac{15}{2}[/tex]
So, we have:
[tex]3 < p[/tex] and [tex]p < \frac{15}{2}[/tex]
Combined as:
[tex]3 < p < \frac{15}{2}[/tex]
Help don’t understand
Ja’Miya needs to save $84. She has saved $63. What percent of the money she needs , has she saved
Answer:
75%
Step-by-step explanation:
63/84 = .75
.75= 75%
A line passes through (2, 8) and (4, 12). Which equation best represents the line? (10 points)
y = 1 over 2 x + 6
y = 2x + 7
y = 2x + 4
y = 1 over 2 x + 10
Answer: y=2x+4
You first find slope which is y2-y1 divided by x2-x1 that gives you slope and then you put it into the formula y-y1=m(x-x1)
Solve the two-step equation 5x + 6 = 26
A. x = 6
B. x = 5
C. x = 32/5
D.None of the above
Answer:
D none of the above becuz x=4
Answer:
D
Step-by-step explanation:
3. Which of the following objects does not have three dimensions?
a cube
a house
a soda can
a line
Help. Need help ASAP!!!!!!!!!!!!!!
Answer:
C
Step-by-step explanation:
18's factors are 2 * 3 * 3
The two 3s can reduce the result further. sqrt (2 * 3 * 3)
square root 18 = 3*sqrt(2)
There are two sides with this length. Their total is 3sqrt(2) + 3sqrt(2) = 6√2
The perimeter is the sum of all three sides = 6 + 6√2
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
Answer:
the product does not exits
The product matrix is,
[tex]\left[\begin{array}{ccc}-10&-4\\13&-5\\\end{array}\right][/tex]
What is matrix?In mathematics, a matrix is a rectangular array or table of numbers, symbols, or expressions, arranged in rows and columns, which is used to represent a mathematical object or a property of such an object.
For example, is a matrix with two rows and three columns.
here, we have,
two matrices,
A = 2×3
and, B= 3×2,
as the no. of column of A = the no. of row of B
the can be a product matrix of order 2×2.
Now, we get,
the product matrix is,
[tex]\left[\begin{array}{ccc}-10&-4\\13&-5\\\end{array}\right][/tex]
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What is the y coordinate in the solution for the system of linear equations 5x-2y=4, 3x-4y=-6
y =3
After you set each equation to terms where you can cancel out the x
you are left with:
14y = 42
y = 3
** sorry
Help don’t understand
Answer:
Wait u don’t understand what is there supposed to be a pick or something?
Step-by-step explanation:
Can someone please help
I need points lol ,, i hope you find your answer i guess .
What 23 divided by 34
Answer: 0.6764705882
Step-by-step explanation:
Which of the following expressions is in simplified form?
-9+ 2.7x + 0.8
03 w+ 1.3w
62 - 4
02t - 5 - t
Answer:
None of these expressions are in simplified form.
Step-by-step explanation: So basically simplified form is that an equation/expression is till you cant combine any like terms. Liked terms are like 4 and 5 or 2x and 3x.
Number 1_ 2.7x-8.2.
Number 2_ 4.3w. Is the 03 a 3 or 0.3?
Number 3_ 58.
Number 4_ t-5. Is the 02t a 2t or 0.2t?
I hope this helps and please let me know about the questions on Number 2 and 4 that I asked about in the explanation below in the comments. Thanks!
Mr. Chen is painting one wall of a room in his attic. He needs to detemine the area of the wall so he will know how much paint he will buy. The drawing below shows the dimensions of the wall.
Part A: Given the drawing, what is the area of the wall?
The area of the wall is
square feet.
Part B: If one quart of paint will cover 22 square feet, how many whole quarts will Mr. Chen need to buy?
He will need to buy
whole quarts.
Area of the figure
= (area of rectangle) + (area of triangle)
= (8 × 10) + (½ × 4 × 8)
= 80 + 16
= 96
Area = 96ft²
Quarts of paint needed
= 96/22
= 48/11
= 4.36
Mr. Chen will have to buy 5 quarts of paint.
HELPPPPPpPpppppppppppp
Answer:
360000
Step-by-step explanation
Step-by-step explanation:
36000
move the decimal to right 4 time then fill the blank with 0
example: 3.6×10⁴ = 36000
note: if the power is positive mo right, if negativw movw the decimal point to left