Answer:
9
Step-by-step explanation:
DB^2=AD^2+AC^2
15^2=12^2+AC^2
AC^2=225-144
AC^2=81
AC=√81
AC=9
Claim: Fewer than 92% of adults have a cell phone. In a reputable poll of 1207 adults, 85% said that they have a cell phone. Find the value of the test statistic,
Round to two decimal places as needed
Answer:
- 6.547
Step-by-step explanation:
Given that:
Sample size (n) = 1207
p = 0.85
p0 = 0.92
The test statistic :
Z = (p - p0) / √(p0(1 - p0) / n)
Z = (0.85 - 0.92) / √(0.92(1 - 0.85) / 1207)
Z = - 0.07 / √(0.92(0.15) / 1207)
Z = - 0.07 / √0.0001143
Z = - 0.07 / 0.0106926
Z = - 6.5465446
Z = - 6.547
pls anwer quick, i need this before tomorrow
Answer:
SYNTAX ERROR
Step-by-step explanation:
The average number of passes in a football game is right skewed with mean 75 and variance 961. If we sample 100 random games, what is the probability our average would be more than 83.7?
Answer:
0.0066
Step-by-step explanation:
Given that:
Mean [tex]\mu[/tex] = 75
Variance [tex]\sigma^2 =961[/tex]
The standard deviation [tex]\sigma = \sqrt{961} = 31[/tex]
The sample size n = 100
[tex]\mu = \mu_{\overline x} = 75[/tex]
[tex]\sigma _{\overline x} = \dfrac{\sigma }{\sqrt{n}}[/tex]
[tex]\sigma _{\overline x} = \dfrac{31 }{\sqrt{100}}[/tex]
[tex]\sigma _{\overline x} = \dfrac{31 }{10}}[/tex]
[tex]\sigma _{\overline x} = 3.1[/tex]
[tex]P(\overline x > 83.7) = 1 - P( \overline x < 83.7)[/tex]
[tex]P(\overline x > 83.7) = 1 -P\bigg ( \dfrac{\overline x - \mu_{\overline x} }{\sigma _{\overline x}} < \dfrac{83.7 - 76}{3.1} \bigg)[/tex]
[tex]P(\overline x > 83.7) = 1 -P\bigg ( Z< \dfrac{7.7}{3.1} \bigg)[/tex]
[tex]P(\overline x > 83.7) = 1 -P ( Z< 2.48)[/tex]
Using the Z table;
P(x > 83.7) = 1 - 0.9934
P(x > 83.7) = 0.0066
Thus, probability = 0.0066
Jonathan wants to make mashed potatoes for eight people. He found a recipe which feeds two people and requires five ounces of potatoes. How many potatoes does he need? (express your answer in pounds and ounces) (1 lb = 16 oz)
ANSWER ASAP
SHOW WORK
Answer:
2lb 32 oz.
Step-by-step explanation:
because 2=5 so 8=32
32 divided by 2 =16 so 32 oz 2lb
HELP DUE IN 20 minutes
How does carbon move from plants to animals?
Group of answer choices
Photosynthesis
Decomposition
Ingestion (eating)
Respiration
Answer:
Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them. ... Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.
Step-by-step explanation:
Answer:
Photosynthesis
Step-by-step explanation:
PLEASEEEE HELPPP MEEE
6 and 7 PLEASE
Answer:
Question 6
[tex]\left(5a+2\right)\left(a+4\right)=\:5a^2+22a+8[/tex]
Question 7
The width is 2x.
Step-by-step explanation:
Question 6)
Expand
[tex](5a+2)(a+4)[/tex]
solving to the expand
[tex](5a+2)(a+4)[/tex]
[tex]\mathrm{Apply\:FOIL\:method}:\quad \left(a+b\right)\left(c+d\right)=ac+ad+bc+bd[/tex][tex]a=5a,\:b=2,\:c=a,\:d=4[/tex]
so the expression becomes
[tex]=5aa+5a\cdot \:4+2a+2\cdot \:4[/tex]
[tex]=5aa+5\cdot \:4a+2a+2\cdot \:4[/tex]
[tex]=5a^2+20a+2a+8[/tex]
adding similar elements: 20a+2a=22a
[tex]=5a^2+22a+8[/tex]
Hence,
[tex]\left(5a+2\right)\left(a+4\right)=\:5a^2+22a+8[/tex]
Question 7)
Given
[tex]A\:=\:8x^2[/tex][tex]l=4x[/tex]Using the formula
width = Area/Length
[tex]=\:\frac{8x^2}{4x}[/tex]
[tex]=2x[/tex] ∵ [tex]\mathrm{Divide\:the\:numbers:}\:\frac{8}{4}=2[/tex]
Therefore, the width is 2x.
An industrial factory makes 2 3/8 yards of rope every minute. The cost of each yard is $4.06. What is the total cost of rope that can be made in 15 minutes?
A. $36.63
B. $60.90
C. $21.44
D. $144.66
\The graph for the equation y = negative x + 2 is shown below. On a coordinate plane, a line with positive slope goes through (0, 2) and (2, 0). If another equation is graphed so that the system has an infinite number of solutions, which equation could that be? y = negative 2 (x minus 1) y = negative (x + 2) y = negative one-fourth (4 x minus 8) y = negative one-half (x + 4)
An infinite number of solutions is generated with a multiple of the first function, hence, the correct option is:
[tex]y = -\frac{1}{4}(4x - 8)[/tex]
The graph given is:
[tex]y = -x + 2[/tex]
When two equations are multiple, the system involving these two equations has infinite solutions.
Among the options, the multiple of the original function is:
[tex]y = -\frac{1}{4}(4x - 8)[/tex]
[tex]y = -x + 2[/tex]
Hence, [tex]y = -\frac{1}{4}(4x - 8)[/tex] is the correct option.
A similar problem is given at https://brainly.com/question/25718527
The correct answer is C
-Banana
x^3-x^2-4x
factor completely
Answer:
Cannot be factored further
Step-by-step explanation:
[tex]x^{3} -x^{2}-4x=x(x^{2}-x-4 ) \\[/tex]
Answer:
x(x^2-x-4)
Step-by-step explanation:
Is 9 yards bigger then 324 inches
Answer:
No
Step-by-step explanation:
Because they are equal
Answer: no , it’s equal
Step-by-step explanation:
9 yards is equal to 324 inches
Cuz there are 36 inches in 1 yard
So 36(9) = 324 inches!!
Please help!!! Thanks
Math problem
Answer:
67
Step-by-step explanation:
(5-2)180
=540
540-131-105-153-84
=67
Which congruence theorem can be used to prove ABDA - ABDC?
Answer:
SAS(SIDE ANGLE SIDE)
Step-by-step explanation
AB side in ABDA = AB side in ABDC
ABD angle in ABDA= ABD angle in ABDC
BD side in ABDA = BD side in ABDC
The congruence theorem can be used to prove ABDA - ABDC is SAS.
What is Congruence of Triangles?Congruence of triangles: Two triangles are said to be congruent if all three corresponding sides are equal and all the three corresponding angles are equal in measure. These triangles can be slides, rotated, flipped and turned to be looked identical. If repositioned, they coincide with each other. The symbol of congruence is’ ≅’.
According to the questions,
AB side in ABDA = AB side in ABDC
ABD angle in ABDA= ABD angle in ABDC
BD side in ABDA = BD side in ABD
Thus SAS is applied.
Hence SAS(Side Angle Side) is the required answer.
To learn more on congruence click :
https://brainly.com/question/20418145
#SPJ2
are the triangles congruent ?
What is the quotient of 7-1/7-2?
Answer:
7
Step-by-step explanation:
Help me!, CERTAIN ANSWRS INLY I DONT UNDEDRSTNDDDDDD THANK YOU IN ADVance
Answer:
Initial temperature = 20° C
Temperature after 18 minutes = 4° C
Step-by-step explanation:
Function representing the relation in the temperature of the soda and time has been given as,
T(x) = [tex]-8+28e^{-0.045x}[/tex]
Here x = number of minutes since the can was placed in the cooler
For initial temperature of the soda,
x = 0,
T(0) = [tex]-8+28e^{(28\times 0)}[/tex]
= -8 + 28(1)
= 20° C
For the temperature after 18 minutes,
x = 18,
T(18) = [tex]-8+28.e^{-0.045\times 18}[/tex]
= [tex]-8+28.e^{(-0.81)}[/tex]
= [tex]-8+12.456[/tex]
= 4.456 C
≈ 4° C
Answer please :) (15 points )
Answer:
its b
Step-by-step explanation:
Answer:
its b
Step-by-step explanation:
yh its b what else am i ment to say
How many times does the digit one appear from 101 to 200
Answer:
Step-by-step explanation:
Let's get the answer first and then we can discuss how it is done. The answer is 119.
There is a problem. The question does not state whether or not 101 is included. If it is 119 is correct. If the question is between 101 and 200 then the answer will be 117.
How was it done? A programming language was used. So it counted by brute force.
From 101 to 120 we get
101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120
32 Certainly there must be a quicker way
101 = 2
102 to 109 = 1 * 8 = 8
110 to 119 = 10*2 = 20
111 has an extra 1 = 1
120 has 1
Total 32
From here it gets a bit easier.
121 2
122 - 129 8
total 10
130 1
131 2
132 - 139 8
total 11
140 to 149 11
150 to 159 11
160 to 169 11
170 to 179 11
180 to 189 11
190 to 199 11
total 7 * 11 + 32 + 10 = 119
can someone please help!!!
Answer:
WARWRAESTRDYTFJYwarehstrdjhtfj
Step-by-step explanation:
999x85 i need help getting the answers for this question
the answer for this is 84915
List the sides of Triangle STU in order from greatest to least if angle S=7x-36, angle T=5x-1, and angle U=x+9
A. ST,TU,ST
B. ST,TU,SU
C. TU,ST,SU
Answer:
SU, TU, ST
Step-by-step explanation:
Given:
<S = 7x - 36,
<T = 5x - 1,
<U = x + 9
First, find the value of x
(7x - 36) + (5x - 1) + (x + 9) = 180° (sum of ∆)
7x - 36 + 5x - 1 + x + 9 = 180
Collect like terms
13x - 28 = 180
Add 28 to both sides
13x = 180 + 28
13x = 208
Divide both sides by 13
x = 16
Next, find the measure of each angle.
<S = 7x - 36,
Plug in the value of x
m<S = 7(16) - 36 = 76°
<T = 5x - 1,
m<T = 5(16) - 1 = 79°
<U = x + 9
m<U = 16 + 9 = 25°
The size of each angle of a triangle is tells how much longer or shorter the length of the side opposite it is. The greater the degree of am angle, the longer the side, and vice versa.
Thus.
The largest angle in ∆STU is <T, which is opposite to side SU. This means the greatest side is SU.
The medium angle is <S, which is opposite to side TU. This means side TU is the medium side.
The smallest angle is <U, which is opposite to side ST. This means the least side would be ST.
From greatest to the least, the sides of ∆STU are:
✅SU, TU, ST
Suraj has $15.00 to spend. He decided to buy a shirt for $9.95 and spend the rest on candy bars. If each candy bar costs $1.50, how many candy bars can Suraj buy?
Answer:3
Step-by-step explanation: i think
Answer:
He can by 3 candy bars.
Step-by-step explanation:
15.00-9.95=5.05
5.05-1.50=3.55
3.55-1.50=2.05
2.05-1.50=0.55 cents
the lines below are parrellell. if the slope of the green line is -2. what is the slope of the red line
Answer:
ummm.... -2 ? because both lines are parallel they have the same slope
Help pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Answer:
the last one :)
Step-by-step explanation:
In a factory a test run over 400 computer chips resulted in 8 defective one how many possible out comes are there
Answer:
392
Step-by-step explanation:
Graph the following equation:
y=3x-4
Answer:
3*x-4
Step-by-step explanation:
8. Which congruence postulate or theorem must you use before proving
Answer:
last one ?
Step-by-step explanation:
you can prove it by base angle threom because this a isscloes triangle
Jimmy's school is selling tickets to the
annual talent show. On the first day of ticket sales the school sold 4 adult tickets
and 6 child tickets for a total of $80. The school took in $84 on the second day by
selling 4 adult tickets and 7 child tickets.Find the price of an adult ticket and the
price of a child ticket.
3
Suppose you have 6 pairs of socks in your sock drawer. It is still dark out in the morning when you get dressed, so you just pull socks out of the drawer at random, one at a time, until you have removed two matching socks. What is the probability that you pull out exactly 5 socks from your sock drawer in the morning?
Answer:
8/33 = 0.242
Step-by-step explanation:
There are 12 socks to begin with and one is taken;
The second is picked from the remaining 11 and will either match the first or not;
The probability of matching is 1/11 and 10/11 for not matching;
If the sock matches, no further sock is taken;
If the socks don't match, a 3rd sock is taken;
The 3rd sock is taken from the remaining 10, 1 of which will match with the first sock and another which will match the second;
Therefore, the probability of taking a matching sock on the third pick will by 2/10 or 1/5 and the probability it will not match either of the first two is 8/10 or 4/5;
Once again, if the sock matches either of those previously taken, no further sock is taken;
If the socks don't match, a 4th sock is taken;
Now, there are 9 socks remaining in the drawer;
Picking is repeated;
The process is logical;
The attached picture shows a tree diagram representing this information in an easily digestible way and makes it easy to work out the desired probability;
With tree, diagrams, you just multiply across until you get to your desired outcome;
In this case, we are finding the probability of picking 5 socks exactly;
Each process splitting represents the picking of a sock;
The probability will be:
10/11 × 8/10 × 6/9 × 4/8 = 8/33 = 0.242...
There are 6 triangles and 2 circles. What is the simplest ratio of circles to total shapes?
Answer 1:4