Answer:
83%
Step-by-step explanation:
No. of questions answered correctly = 166
Total no. of questions = 200
Percentage of questions answered correctly = (166/200)*100 = 83%
Evaluate this expression for a = 3 and b = 4.
(a + 4)
b 3(8 + 2)
+
b-2
ad
A. 6
B.
9
O C. 11
D.
18
O
Answer:
The answer should be D
Step-by-step explanation:
I hope this helps
You made a cardboard tree that is 48 inches tall to use as a stage prop for
a play. You need to make a diagonal brace that connects a 28-inch long
horizontal brace to the top of the tree. Find the length of the diagonal
brace to the nearest tenth of an inch.
Answer:
55.6 inch
Step-by-step explanation:
the cardboard tree, the horizontal base and the diagonal would form a right angled triangle.
the carboard tree would be the height
the horizontal base would be the base
the diagonal would be the hypotenuse
the length of the diagonal base can be determined using the Pythagoras theorem
the Pythagoras theorem : a² + b² = c²
a = base
b = height
c = hypotenuse
48² + 28² = 3088
c = √3088 = 55.6 inch
Find the EXACT circumference of a circle with a diameter of 14 inches.
I need help someone math pls I need this done points and brainlest picture **
Answer:
The formula for the diameter of a circle is 2[tex]\pi[/tex]r, or [tex]\pi[/tex]d.
3.14(10.5)= 32.97 in.
Step-by-step explanation:
The formula for the diameter of a circle is 2[tex]\pi[/tex]r, or [tex]\pi[/tex]d.
3.14(10.5)= 32.97 in.
Are the polygons similar? If they are, write a similarity statement and give the scale factor. The figures are not drawn to scale.
help
what is 21+208 I AM A SUPER IDIOT PLZ HELP ME
Answer:
229
229
229
it's two hundred and nine
Answer:
your answer is 229
Step-by-step explanation:
200 plus 20 is 220 and 8 plus 1 is 9 so u add it all together and its 229
what is 4/7x -3x-3/x²-x
Answer:
-24x/7 - 3/x^2
Step-by-step explanation:
group like terms
4/7 x-3x-x-3/x^2
4/7 x-3x-x=-24/7 x
-24/7 x - 3/x^2
multiply
24/7 x - 3/x^2
=-24x/7 - 3/x^2
An air-conditioning repair technician claims to complete 67% of repairs in under an hour. A random sample of 31
repairs was chosen, and 22 of those were completed in under an hour. Let p = the proportion of the random
sample that were completed in under an hour.
The probability that 71% or more of this technician's repairs were completed in under an hour is 0.317. Does this
result provide convincing evidence against the technician's claim?
Yes, it is expected that 22 of the units at most will be repaired in under an hour.
Yes, the probability of seeing the sample result is so far from what is expected that the probability of it occurring by
chance alone is very unlikely.
No, there is a very small chance of seeing the sample result. It is unlikely to occur by chance alone.
No, the difference between the sample result and what is expected is not extreme enough. The probability of it
occurring by chance alone is not unlikely.
Answer:
D No, the difference between the sample result and what is expected is not extreme enough. The probability of it occurring by chance alone is not unlikely.
Step-by-step explanation:
Got it right on unit test review
The probability of it occurring by chance alone is not unlikely.
We have given that,
An air-conditioning repair technician claims to complete 67% of repairs in under an hour. A random sample of 31.
repairs was chosen, and 22 of those were completed in under an hour. Let p = the proportion of the random.
The sample was completed in under an hour.
What is the probability?Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.
The probability that 71% or more of this technician's repairs were completed in under an hour is 0.317.
D No, the difference between the sample result and what is expected is not extreme enough. The probability of it occurring by chance alone is not unlikely.
To learn more about the probability visit:
https://brainly.com/question/25870256
#SPJ2
What is the equation of the line in the slope intercept form?
Answer:
y=x+100
Step-by-step explanation:
A chemistry experiment needed 12.45 grams of chemical to produce one liter of a gas. If Zoe wanted 24 liters of gas, how many kilograms of the chemical will she need?
what is the answer???
Answer:
360 seconds
Step-by-step explanation:
ALL YOU HAVE TO DO IS MULTIPLY 1/2 AND 12, WHICH GETS YOU 6! now in seconds just multiply 6 times 60 to get 360!
Answer:
6 minutes
Step-by-step explanation:
We multiply the amount of problems by the time per problem to get the equation (1/2)(12)=x where x is the time she takes to complete 12 questions. (1/2)*(12) = 6.
What function is represented by a line with slope −2 that passes through the point (0, 4)?
Answer:
y=-2x+4
Step-by-step explanation:
y=ax+b
and point (0,4) passes through this line so 4=-2(0)+b
4=b
equation is :y=-2x+4
Helpppp me prettyyyy please I’m confused
Answer:
For every 1 vote cast for Candidate D, there were 4 votes for candidate C.
Step-by-step explanation:
Hope this helps! Have a good day!
Answer:
For every 1 vote cast for Candidate D, there were 4 votes cast for Candidate C.
b.) Evaluate x + 12 when x = 5
Answer:
17
Step-by-step explanation:
Answer:
a. x + 5 = 12 b. 4 · x = -20.
R + 4 when r = 13
Can u explain it
Answer: r + 4
Step-by-step explanation:
Given the two similar triangles below. What is the measure of x?
Answer:
x=2.4
Step-by-step explanation:
as the 2 triangles are similar,
[tex] \frac{6}{x} = \frac{5}{2} [/tex]
therefore ;
[tex]x = \frac{6 \times 2}{5} [/tex]
[tex]x = 2.4[/tex]
Answer:
The answer would be 2.4
Step-by-step explanation:
This is because 5 is the same as 2, and 7 is the same as y, and then 6 is the same as x. If you divide 5 by 2 you get 2.5 if you divide 6 by 2.5 you get 2.4
What congruence theorem can you use to show that the two wedges of cheese have the same length?
9.6 cm
9.6 cm
3.2 cm
3.2 cm
You can show that the two wedges of cheese have the same length using the
(blank) Congruence Theorem.
Please help!!
Tony is 2 years older than crystal. In 8 years the sum of their ages will be 78. How old is tony now?
What is the equation of the line?
A. y= 1/3x - 1
B. y= -1/3x + 1
C. y= -3x + 1
D. y= 3x - 1
Kayley has a craft box full of buttons. The craft box has 6 yellow buttons, 7 black buttons, 4 red buttons, 2 pink buttons, 8 green buttons, and 3 buttons. If Kayley is randomly choosing buttons out of the box one at a time and then returning them, choose all the statements that are true.
A. Kayley has 1/15 chance in picking a pink button.
B. Kayley has an equal chance in choosing any color button.
C. Kayley has 2/15 chance in choosing a green button.
D. Kayley has a 4/5 chance in picking a button that is not yellow.
E. Kayley will more likely pick a brown button than a red button.
Answer: D
Step-by-step explanation:
(10 A person flying a kite has released
123 ft of string. The string makes an
angle of 21 degrees with the ground. How high
is the kite ?
Answer:
The kite is about 44.1 feet high.
Step-by-step explanation
Since you are trying to find the height, you would draw a triangle to diagram which sides you need to use. The 123 ft of string would be the hypotenuse of the triangle while the 21 degrees is the theta. You are trying to find the height and from the theta that would be the opposite side so you would use sine because you are using opposite and hypotenuse.
sin21=x/123
You have sin of 21 because that is the angle measure, then opposite over hypotenuse which is x/123.
You then multiply both sides by 123 to get the variable of x alone on one side.
123sin21=x
Then just plug this into your calculator and round to the nearest tenth and you get 44.1 feet.
Hope this helped explain how to do these problems, I had trouble doing them awhile back in Algebra 2 so hope this helped out a little.
(take π =22/7). capacity of a solid cylinder with height 5cm and diameter of 6cm.
Step-by-step explanation:
πr^2h
22/7×3×3×5
141.428
Evaluate the expression for p = 2.
4p =
Answer:
4p = 8
Step-by-step explanation:
2 × 4 = 8
4p = 8
Jia sells duck eggs. A customer buys 4 cartons. There are 6 eggs in
each carton. How many eggs does the customer buy in all?
Answer:24
Step-by-step explanation:
If Jia sells duck eggs and a customer buys 4 cartoons and there are 6 eggs in each cartoon that means 6(4)=Number of eggs customer buys in all
One cartoon= 6 eggs
Two cartoon = 12 eggs
Three cartoon = 18 eggs
Four Cartoon = 24 eggs
So the Customer buys 24 eggs in all
Which of the following angles is an alternate ne angle to angle
7
1
2
ī
3
4
5/6
7 8
vīlī, then
2125
22 2 26
23 227
Answer:
<7
Step-by-step explanation:
<7
The sum of two numbers is twenty-four. The second number is equal to twice the first number. Call the first number m and the second number n.
translate
Step-by-step explanation:
m+n=24.....(1)
n=2m
put value of n in equation 1
m+2m=24
3m=24
m=8
n=2(8)
n=16
Which expression is equivalent to (r -7 6?
The volume of the prism shown in 60 cm Given the dimensions shown below, what would be the value of x ?
Answer:
(3× - 2)(x - 1)
3x² - 3x - 2× -2
3x² - 5× - 2
3x² + × - 6× - 2
× (3x + 1) -2 (3× + 1)
(3× + 1) (× - 2)
Hiii pple can yall help me out here plz
Single term algebraic expression is called?
1. Monomial
2. Binomial
3. Trinomial
4.None of these
Answer:
the answer is Monomial I hope this helps
Answer:
Monomial - an expression that consist of 1 term
Step-by-step explanation:
Bi - two
Binomial - an expression consisting of two terms
Tri - three
Trinomial - an expression consisting of three terms
what is 3/5 multiplied by 1/7?
3/12
3/35
4/12
10
35
3/35 is the answer!
3 x 1 = 3
___
5 x 7 = 35