Answers
Related Questions
Graphing & Solving Inequalities
Answers
Answer:
x ≥ 1
Step-by-step explanation:
3 + 4x ≥ 7
3 - 3 + 4x ≥ 7 - 3
4x ≥ 4
4x / 4 ≥ 4 / 4
x ≥ 1
The mean number of minutes spent on a
treadmill at the local gym is 28 minutes with a
standard deviation of 8. If Kurt's z-score is
1.75, how much time did he spent on the
treadmill?
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Answer:
With a z score of 1.75, mean of 28 and standard deviation of 8
1.75=(Xi-28)/8
14=(Xi-28)
42 = Xi
Kurt was on the treadmill for 42 minutes
Step-by-step explanation:
a line has a slope of 2 and y intercept of -3/4 which of the following is an equation of the line
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Answer:
Y=2x-3/4
Step-by-step explanation:
1) put all the information you have in Y=mx+b form
2) y=2x-3/4
2 is the slope and -3/4 is the y intercept
Which of the following is an expression for "doubling a number n and dividing by 3"
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Answer:
its 2n / 3 i hope it helped u thanks
Each bus for Philips Elementary School transports 40 students to school. There are 12 buses that transport students to school each day. How many students are transported to school each day by bus? Show your work.
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Answer:
480 students are transported to school each day.
Step-by-step explanation:
Since there are 12 buses and each one of them transports 40 students that means that the total amount of students will be equal to...
12 x 40 = 480
What’s the missing side length?
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A sports equipment researcher investigated how different types of wood used to make baseball bats might affect batting. The researcher selected a sample of 80 batters from summer baseball leagues and randomly assigned the batters to one of two groups: the ash bat group or the maple bat group. The mean number of hits for each group was recorded at the end of the season, and the difference in the sample means was calculated. Which of the following is the appropriate inference procedure for analyzing the results of the investigation?
A. A one-sample t-interval for a population mean
B. A one-sample t-interval for a sample mean
C. A matched pairs t-interval for a mean difference
D. A two-sample t-interval for a difference between sample means
E. A two-sample t-interval for a difference between population means
Answers
Answer:
E
A two-sample t -interval for a difference between population means
Step-by-step explanation:
i just took the test
The appropriate inference procedure for analyzing the results of the investigation is option E. A two-sample t-interval for a difference between population means
Analysis the results of the investigation:Since the researcher selected a sample of 80 batters from summer baseball leagues and batters assigned to one of the two groups. So this means that the researcher is interested to know whether the mean no of hits should be different for two groups and both groups are independent to each other.
Therefore, The appropriate inference procedure for analyzing the results of the investigation is option E. A two-sample t-interval for a difference between population means
learn more about mean here: https://brainly.com/question/10132345
the lateral area of a cone with a diameter of 15 yards is about 287.5 square yards. to the nearest tenth, what is the slant height of the cone
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Answer:
The answer is 2200cm to the 3rd power
Step-by-step explanation:
Larry earned $11 walking his neighbors' dogs on Saturday. He earned some extra money on Sunday doing the same thing. Write an expression with a variable that shows the total amount of money Larry has earned Saturday and Sunday.
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Answer:
y= 11+x
Step-by-step explanation:
Given data
Larry earned $11 walking his neighbors' dogs on Saturday
Also, he earned some extra amount say x dollars on Sundays
let the total earnings be y
Therefore the total earnings can be expressed as
y= 11+x
A chef plaining for a large banquaet think that 2 out of every 5 dinner guests will order his soup appetizer he expects 800 guests at the banquat use equvilent ratios to estimate how many cups of soup he should prepare
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Answer:
I think 80
Step-by-step explanation:
2*5=10
800/10 = 80
80 soups
From the set {24, 36, 72}, use substitution to determine which value of x makes the inequality true. A. 72 B. 36 C. none of these D. 24
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Complete question :
From the set {24, 36, 72}, use substitution to determine which value of x makes the inequality true.
x ÷ 12 < 3
Answer:
24
Step-by-step explanation:
Given the inequality : x ÷ 12 < 3
Substitute the values in the set for X and test the inequality expression if it hoods true for each of the substituted value.
x = 24
24 ÷ 12 < 3
2 < 3 (true)
x = 36
36 ÷ 12 < 3
3 < 3 (false)
x = 72
72 ÷ 12 < 3
6 < 3 (false)
An English instructor asserted that students' test grades are directly proportional to the amount of time spent studying. Lisa studies 4 hr for a particular test and gets a score of 72. At this rate, how many hours would she have had to study to get a score of 96?
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Answer:
12 hours.
Step-by-step explanation:
help asap
find m∠ABC
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Answer:
85
Step-by-step explanation:
Find the volume of a square pyramid with base edge = 9 cm
and height = 7 cm.
PLZ HELP FAST
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Help me with this pls
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What is the area of the shaded figure
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Find the length of AB
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Answer:
B. 25.2Step-by-step explanation:
AB = AC - BCAC/50 = tan(18° + 28°)AC = 50 tan 46° ≈ 51.8BC/50 = tan 28°BC = 50 tan 28° ≈ 26.6AB = 51.8 - 26.6 = 25.2Answer:
B 25.2
Step-by-step explanation:
AB = AC - BC
= 51.8 - 26.6 = 25.2
what is this equal to
[tex] \frac{a + 8}{2} = \frac{a - 4}{8} [/tex]
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HELP ill mark you brainlist
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Answer:
-8 + 11n OR 11n - 8Step-by-step explanation:
an = 3 + (n-1)11
an = 3 + 11n - 11
an = -8 + 11n OR 11n - 8
Hope that helps!
Answer:
find the last SIMPLIFIED number
11 x 5 = 55
55 simplfiied = 27.5
Step-by-step explanation:
sorry if this is wrong. i tried my best trying to look for the answer
Which graph represents the same relation as the set {(-3,2).(5.5)(3,3).(3.-2)}}
Please hurry:(?
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Answer:
b
Step-by-step explanation:
Factor completely: 2x^3-12x^2+18x
Answers
Answer:
2x(x - 3)²
Step-by-step explanation:
We can simplify this a lot by first factoring 2x out of each term:
2x³ - 12x² + 18x
= 2x(x² - 6 + 9)
We can then factor the trinomial fairly easily, as it's a perfect square:
= 2x(x - 3)²
A certain rectangle
has a perimeter of 10 units and an area
of 6 units. Two of the vertices have
coordinates (1,7) and (1, 4). Find the two
missing coordinates.
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Answer:
Step-by-step explanation:
Distance between (1,7) and (1,4) = 3
Length of adjacent side = area/3 = 2
Remaining vertices: (3,7) and (3,4), or (-1,7) and (-1,4)
Perform the operation (x^2+8x+8)+(-10x^2+5x)
Answers
Answer:
Step-by-step explanation:
(x^2+8x+8)+(-10x^2+5x) = (x^2-10x^2) + (8x+5x) + 8
= -x^2 +13x + 8
Answer:
-9x^+13x+8
Step-by-step explanation:
Ivanka has 108 inches of fabric for a blanket. The pattern calls for 24 yards. How
much extra fabric does she have?
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How far up the house would a ladder be resting if it is 25 ft long and 3 ft
away from the house? Round to the nearest tenth if necessary.
5.3 ft
21 ft
24.8 ft
25.2 ft
Answers
Answer:
C
Step-by-step explanation:
The last one is absurd. You can't have a ladder reaching higher than itself. The question is a Pythagorean problem.
Givens
a = 3
b = ?
c = 25 feet
Formula
a^2 + b^2 = c^2
Solution
3^2 + b^2 = 25^2
9 + b^2 = 625 Subtract 9 from both sides.
b^2 = 625 - 9
b^2 = 616 Take the square root of both sides.
b = sqrt(616)
b = 24.8
help me please!!!!!!!!
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Answer:
16/19 students
New Answer:
3/5 students
Step-by-step explanation:
Divide 2.2 and 41.5 :)
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Answer:
39.3
Step-by-step explanation:
NEVER GONNA GIVE YOU NEVER GONNA LET YOU DOWN
Select the formula for the xth term of the sequence.
3, 11, 19,
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Answer:
8n - 15
Step-by-step explanation:
for finding the nth term we need to figure out the difference between the numbers:
3,11,19 = difference of 8
multiples of 8:
8,16,24,32,40...
the nth term would be 8n - 5 because in order to get to 3 from 8, we minus 5
Help me photo is attached below pleaseeee I beg youuu
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Answer:
15? i'm not too sure, the wording is throwing me off
Step-by-step explanation:
Answer:
15 dogs
Step-by-step explanation:
dogs : cats : rabbits
5 : 2 : 1
? : ? : 3
1 rabbit = 2 cats
2 cats = 5 dogs
1 rabbit = 2 cats
2 rabbits = 4 cats
3 rabbits = 6 cats
2 cats = 5 dogs
4 cats = 10 dogs
6 cats = 15 dogs
A car starting from rest accelerates at a rate of 7.5 m/s2. What is its final speed at the end of 4.0 seconds?
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Step-by-step explanation:
initial velocity is 0
time is 4 seconds
acceleration is 7.5mper second square
using the formula s=ut+1/2at^2[distance equal to initial velocity times time plus half into acceleration times (time )squared] substitute s=0×4+2×7.5 ×4^2
s=0+7.5×16
s=120m