someone help me plz :-(:-(
Find the missing angle
90 minus 63 equals 37
Answer:
27 degrees
Step-by-step explanation:
x together with 63deg form a right angle (90deg)
x + 63 = 90
x = 90 - 63
x = 27
g A report on the nightly news broadcast stated that 10 out of 108 households with pet dogs were burglarized and 20 out of 208 without pet dogs were burglarized. Suppose that this data is used to test the claim that the proportion of households with dogs that are burglarized is the same as the proportion of households without dogs that are burglarized. What would be the test statistic for this test
Answer:
Test statistic |Z| = 0.1040 < 1.96 at 0.05 level of significance
Step-by-step explanation:
Step(i):-
Given that a report on the nightly news broadcast stated that 10 out of 108 households with pet dogs were burglarized
First proportion
[tex]p_{1} = \frac{x_{1} }{n_{1} } = \frac{10}{108} = 0.0925[/tex]
Given that a report on the nightly news broadcast stated that 20 out of 208 households without pet dogs were burglarized
Second proportion
[tex]p_{2} = \frac{x_{2} }{n_{2} } = \frac{20}{208} = 0.0961[/tex]
where
[tex]P = \frac{n_{1}p_{1} +n_{2}p_{2} }{n_{1} +n_{2} }[/tex]
P = 0.09486
Q = 1 - P = 1 - 0.09486 = 0.90514
Step(ii):-
Test statistic
[tex]Z = \frac{p_{1}-p_{2} }{\sqrt{PQ(\frac{1}{n_{1} } +\frac{1}{n_{2} } )} }[/tex]
[tex]Z = \frac{0.0925-0.0961 }{\sqrt{0.09486 X 0.90514(\frac{1}{108 } +\frac{1}{208 } )} }[/tex]
Z = -0.1040
|Z| = |-0.1040|
|Z| = 0.1040
Critical value Z = 1.96 at 0.05 level of significance
A worker at a snack stand opened a new box of cups. The first day, the worker used
30 cups from the box. The second day, the worker used 15% of the remaining cups in the
box. A total of 90 cups were used on the second day. What was the original number
of cups in the box before any cups were used?
A
400
B
570
с
630
D
800
Can I get help what does x equal?
Answer:
X is equal to 5
Step-by-step explanation:
If DE is a midsegment of the triangle, then segments AD and DB are congruent, therefore they have the same value.
- 5 (-2x+10) = 10
equation with parentheses
Answer: x=6
Step-by-step explanation:
−
5
(
−
2
+
1
0
)
=
1
0
−
5
(
−
2
x
+
10
)
=
10
−5(−2x+10)=10
Solve
1
Distribute
−
5
(
−
2
+
1
0
)
=
1
0
−
5
(
−
2
x
+
10
)
=
10
−5(−2x+10)=10
1
0
−
5
0
=
1
0
10
x
−
50
=
10
10x−50=10
2
Add
5
0
50
50
to both sides of the equation
3
Simplify
I need help
Please ?!!!!!!
Answer:
High blood pressure
Step-by-step explanation:
Possible DEATH
Answer:
High blood pressure
Step-by-step explanation:
High blood pressure is dangerous
Help!!! Quick answer please!
Answer:
18 sq ft
Step-by-step explanation: all you have to do is add the sides. 5+5=10
4+4= 8
10+8=18
This makes the most sense with the answers givin

HELP ASAP! I will mark Brainlist! Thanks (:
Answer:
Corresponding angles postulate
Answer:
definition of parrallel lines
Step-by-step explanation:
oh sorry. I understood it as parrallel
Find the length of chord AD
9514 1404 393
Answer:
AD = 15
Step-by-step explanation:
The products of the segment lengths are the same.
(x -2)(x +7) = 4(2x -1)
x^2 +5x -14 = 8x -4
x^2 -3x -10 = 0
(x -5)(x +2) = 0
The positive solution is x=5.
Chord AD is ...
(x -2) +(x +7) = 2x +5 = 2(5) +5 = 15
Chord AD is 15 units long.
Alma is estimating the proportion of students in her school district who, in the past month, read at least 1 book. From a random sample of 50 students, she found that 32 students read at least 1 book last month. Assuming all conditions for inference are met, which of the following defines a 90 percent confidence interval for the proportion of all students in her district who read at least 1 book last month?
a. 32 + or - 1.645 underroot(32)(18)/50.
b. 32 + or - + 1.96 underroot(32)(18)/50.
c. 0.64 + or - 1.282 underroot(0.64)(0.36)/50.
d. 0.64 + or - 1.645 underroot(0.64)(0.36)/50.
e. 0.64 + or - 1.96 underroot(0.64)(0.36)/50.
Answer:
[tex]0.64 \pm 1.645\sqrt{\frac{0.64*0.36}{50}}[/tex], option D
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].
From a random sample of 50 students, she found that 32 students read at least 1 book last month.
This means that [tex]n = 50, \pi = \frac{32}{50} = 0.64[/tex]
90% confidence level
So [tex]\alpha = 0.1[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.1}{2} = 0.95[/tex], so [tex]Z = 1.645[/tex].
Confidence interval:
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]0.64 \pm 1.645\sqrt{\frac{0.64*0.36}{50}}[/tex]
So the correct answer is given by option D.
You roll a die 4 times. What is the probability of rolling a 3 on all 4 times?
A.1/216
B.1/6
C.4/6
D.1/1296
Answer:
to find a probability,we need to follow the rule
P/n
p=1
n=6
=1/6
You now have $4000. You will toss a fair coinup tofour times. Before each toss you can bet any amount of your money (including none) on the outcome of the toss. If heads comes up, you win the amount you bet. If tails comes up, you lose the amount you bet. Your goal is to reach $6000. It turns out that you can maximize your chance ofreaching$6000 by betting either the money you have on hand or $6000minus the money that you have on hand, whichever is smaller. Use simulation to estimate the probability that you will reach your goal with this betting strategywith the initial budget $4000.
Answer:
Since we want to bet the smaller amount, $6000 - budget, each time, we will be betting $2000 dollars each time. We know the odds of landing on heads with a coin is a %50 chance. Now if we get heads we can win. If we do not get heads we are left with $2000. Follow the betting equation again. $6000 - $2000 = $4000. We do not have $4000 so we will bet $2000. Once again we have a %50 chance of winning. If we win we will have $4000. If we loose, we will be left with nothing. If we were to loose, we would no longer be able to reach our goal because lack of money. Now lets say we won. We would have $4000 again so we would have to repeat like before. We would bet $2000 and if we win, we reach the goal. If we lost, we would also have to repeat steps before. This means the game could be over in 1 flip but could go on forever.
Determine whether the triangle is a right triangle 12, 10, 11...
Answer:
no it's not right angled
Step-by-step explanation:
thats because the left hand side is not equal to the right hand side
Answer:
You were on the right track: basically if a²+b²=c² is true , it's a right triangle...
a²+b²=c²
11²+10²=12²?
121+100=144?
221=144?
221≠144
Since they're not equal, the triangle isn't a right triangle.
A ______________ consists of an a sample space and a list of events with their probabilities.
probability model
sample space
likelihood
outcome
Sample space َََ َ َ َ َ َ َ َ َ َ
a. In the diagram above, angles ABCABC and CBDCBD are
, and their measures sum to
degrees.
b. The measure of \angle ABC∠ABC is
degrees.
Show your work in the box below.
Answer:
Step-by-step explanation:
..
What is the surface area of a sphere with a diameter of 89 cm? Round your answer to
the nearest hundredth.
What is the length of arc S shown below?
S
2
7 cm
The angle in the figure is a central angle in radians.
Answer: S= 14 cm
Step-by-step explanation:
Answer: 14
Step-by-step explanation: Khan Academy
6
YA
Triangle ABC has vertices A(-4,-1), B(-3,-5), C(-1, -1). Graph and label the vertices of ABC
and its image A'B'C' after translating it to 4 units right and 3 units up. Choose the correct
ordered pairs of the image A'B'C'.
(2 Points)
O A'(4.1), B (3,5), C' (1.1)
O A'(0,2), B(1, -2). C'(3.2)
O A'(0.2), B (1,2), C'(-3,-2)
Answer:
A'(0,2), B(1, -2). C'(3,2)
Step-by-step explanation:
Given
[tex]A = (-4,-1)[/tex]
[tex]B = (-3,-5)[/tex]
[tex]C =(-1,-1)[/tex]
Solving (a); Graph and Label ABC
See attachment for graph
Solving (b): Graph and Label A'B'C'
Translation:
4 units right
3 units up
4 units right
The rule is:
[tex](x,y) \to (x + 4,y)[/tex]
So, we have:
[tex]A = (-4,-1)[/tex] ==> [tex](-4+4,-1) =(0,-1)[/tex]
[tex]B = (-3,-5)[/tex] ==> [tex](-3+4,-5) =(1,-5)[/tex]
[tex]C =(-1,-1)[/tex] ==> [tex](-1+4,-1) =(3,-1)[/tex]
3 units up
The rule is:
[tex](x,y) \to (x,y+3)[/tex]
So, we have:
[tex](0,-1)[/tex] ==> [tex]A' =(0,-1+3) = (0,2)[/tex]
[tex](1,-5)[/tex] ==> [tex]B' =(1,-5+3) = (1,-2)[/tex]
[tex](3,-1)[/tex] ==> [tex]C' =(3,-1+3) = (3,2)[/tex]
The coordinates of A' B' and C' are:
A'(0,2), B(1, -2). C'(3,2)
See attachment for graph
Skirts are 4 for $30. Marta and her sisters bought 6 skirts. How much did they pay?
Answer:
They payed $45
Step-by-step explanation:
First we have to find the unit rate. Divide 30/4 to get $7.5. 1 shirt costs $7.5.
Multiply 7.5 times the 6 skirts to get $45.
Hope this helps! Pls mark brainliest
write an equation of the line that passes through the given points (1 , 1.5) and (2, 3.5)
Answer:
y=2x-0.5
Step-by-step explanation:
typically, the equation of the line is written in slope intercept form, which is y=mx+b, where m is the slope and b is the y intercept
first, we need to find the slope (m) of the line
the formula for slope calculated from two points is given as (y2-y1)/(x2-x1)
we have two points: (1,1.5) and (2,3.5) and we can label them
x1=1
y1=1.5
x2=2
y2=3.5
now plug into the formula:
m=(3.5-1.5)/(2-1)
m=2/1
m=2
the slope of the line is 2
here's our equation so far:
y=2x+b
now we need to find b
since the line will pass through the points (1, 1.5) and (2, 3.5), we can plug either one of them into the equation to solve for
Let's use (1, 1.5)
substitute 1.5 as y and 1 as x
1.5=2(1)+b
1.5=2+b
subtract 2 from both sides
-0.5=b
therefore, our equation is:
y=2x-0.5
hope this helps!
Consider the line plot below.
What is the median of the data?
What is the mean?
Question 4 of 25 If (x) = 3x2 - 2x + 4 and g(x) = 5x2 + 6x - 8, find (f-g)(X).
Answer:
The value of (f-g)(x) is −2x 2−8x+12
i need help now!!!! please
A cylinder has a base radius of 7in and a height of 20in. What is its volume in cubic in, to the nearest tenths place?
Answer:
this is the answer
Step-by-step explanation:
in the pictue
of 20 possible books you plan to take 5 with you on vacation. how many different collections of 5 books can you take?
WILL MARK BRAINLY FOR WHO EVER ANSWERS THIS RIGHT
Answer:
B
Step-by-step explanation:
Hope this helps!
2. What is the area of the figure shown below?
7 mm
12 mm
14 mm
110mm
14 mm
1
6 mm
Answer:
Step-by-step explanation:
Mrs. Torchia picked 54 flowers, which represents 60% of all the flowers in her garden.How many flowers are left in Mrs. Torchia’s garden?
The figure shows a parallelogram inside a rectangle outline: A parallelogram is shown within a rectangle. The length of the rectangle is 3 over 4 foot and the width of the rectangle is 1 over 2 foot. The two equal bases of the triangles outside the parallelogram are labeled 1 over 8 foot. What is the area of the parallelogram? (1 point) 1 over 32 square foot 5 over 16 square foot 9 over 32 square foot 6 over 16 square foot
Answer:
I know im late but 5/16
Step-by-step explanation:
3(x+2)=15
I just need help with this problem please.
Answer:
x=3
Step-by-step explanation:
Divide both sides by 3
3(x+2)/3 = 15/3
You get x+2=5, subtract 2 from each side
x+2(-2)=5(-2)
x=3