I participated in a math competition but I did not do very good. Does anybody have some tips?
Calculate −5^2+(−2)^3
Answer:
-33
Step-by-step explanation:
Answer:
-33
Step-by-step explanation:
−5^2 + (−2)^3 =
= -25 + (-8)
= -33
Can someone please help me
first correct answer will get brainliest
Solve: 3(5-2 ) +I-5I = ?
7
15
4
14
Answer:
14
Step-by-step explanation:
when you multiply and do the absolute value thats what you get
Simplify the expression
1/5v+3/10v
[tex]\frac15v+\frac3{10}v=\frac2{10}v+\frac3{10}v=\frac5{10}v=\frac12v[/tex]
In ABCD, ZC = ZB, BC = 6 and DB = 9. Find the length of CD.
Answer:
the lenght of CD is 6
Step-by-step explanation:
BC =6 and DB=9 substract DB with BC (9-6=3) it increases by 3 so thats why from BC is 6 and from B to D is 9 bc it increased by 3
Given \sec A=\frac{14}{\sqrt{171}}secA= 171 14 and that angle AA is in Quadrant I, find the exact value of \csc AcscA in simplest radical form using a rational denominator.
Answer:
Step-by-step explanation:
[tex]sec A=\frac{14}{\sqrt{171} } \\cos ~A=\frac{\sqrt{171} }{14} \\sin ~A=\sqrt{1-cos^2A} =\sqrt{1-\frac{171}{196} } =\sqrt{\frac{196-171}{196} } =\sqrt{\frac{25}{96} } =\pm\frac{5}{14} \\csc A=\pm \frac{14}{5}[/tex]
as A is in quadrant 1
[tex]so~csc~A=\frac{14}{5}[/tex]
in quadrant 1 both sin A and csc A are positive.
Amanda made $276 for 12 hours of work, At the same rate, how many hours would she have to work to make $115
Answer:
5 hours
Step-by-step explanation:
276/12= 23
115/23= 5
Jeremiah answers 90% of the questions on his test correctly. There are 40 questions on the test.
Jeremiah writes the expression 40 minus (StartFraction 1 over 10 EndFraction times 40) to determine the number of questions answered correctly. Which is an equivalent expression?
StartFraction 9 over 10 EndFraction times 40
40 minus 36
(StartFraction 1 over 10 EndFraction times 40) minus 40
(40 minus StartFraction 1 over 10 EndFraction) times 40
Answer:
A
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
also rented a truck for one day. there was a base fee of 20.99, and there was an additional charge of 85 cents for each mile driven. aldo had to pay $210.54 when he returned the truck. for how many miles did he drive the truck?
Answer:
223 mile
Step-by-step explanation:
is y= -4x+9 porportional?
Answer:
Nope
Step-by-step explanation:
Since we have no values for x and y there isnt really a way to tell. Since we dont know the values, I would assume not.
Answer:
nope
Step-by-step explanation:
Consider the below three statements to be true:
All horses that run fast are brown
Horse A is not brown
Horse B runs fast
Which of the following statements is TRUE?
a. Horse B is not brown
b. Horse B is brown
c.Horse A runs fast
d. All brown horses run fast
Answer:
2nd option
Step-by-step explanation:
The 2nd option (horse b is brown) corresponds with "all horses that run fast are brown"
Find the EXACT value of sec (-120 degrees)
Well sec(-120) = 1/cos(-120).
We know that cos(-120) = -1/2.
So, 1/(-1/2) = -2.
This means that sec(-120) = -2.
Five more than the product of a number and 9 is 2.
Answer:
-3/9
Step-by-step explanation:
The equation would be: x * 9 + 5 = 2
Subtract 5 from each side: x * 9 = -3
Divide each side by 9: x = -3/9
I hope this helped, please mark Brainliest, thank you!!
the graph of a linear equation in two variables is _____?
Answer:
"a straight line"
Step-by-step explanation:
recall that a linear equation may be expressed as
y = mx + b, where x and y are the variables (i.e 2 variables)
we also know that if we graph the linear equation y = mx+b, we will get a straight line.
Hence a possible answer for the blank could be:
"a straight line"
Determine the value of x.
Help me please please please!
Answer:
X = 12
Step-by-step explanation:
Since each angle is equivalent to each other, you can write the equation:
(9x-3) = (7x+21)
Then Simplify.
Subtract both sides by 7x
2x-3=21
Add 3 To Both Sides
2x=24
Divide by 2
X = 12
Answer:
9x-3=7x+21
9x=7x+24
2x=24
x=12
Step-by-step explanation:
(9x-3) and (7x+21) are corresponding angles that means that they are congruent. So they equal each other.
Refer to the various selling prices of various homes in a community that follow the normal distribution with mu (population mean) = $276,000 and sigma (standard deviation – measure of dispersion) = $32,000. Calculate the probability that the next house in the community will sell for between $276,000 and $325,000.
Answer:
0.43715
Step-by-step explanation:
We solve using z score calculator
z = (x-μ)/σ, where
x is the raw score
μ is the population mean = $276,000
σ is the population standard deviation = 32,000
For x = $276,000
z = 276,000 - 276,000/32000
z = 0
Probability value from Z-Table:
P(x = 276000) = 0.5
For x = $325,000
z = 325,000 - 276,000/32000
z = 1.53125
Probability value from Z-Table:
P(x = 325000) = 0.93715
The probability that the next house in the community will sell for between $276,000 and $325,000 is
P(x = 325000) - P(x = 276000)
= 0.93715 - 0.5
= 0.43715
What inequality is represented by this graph?
Answer:
I believe it would be B
Step-by-step explanation:
im not good at explaining, but basically that would make the most sense, forgive me if im wrong, im not good at math TwT
the sum of the interior angles in a pentagon
Answer:
540°
Step-by-step explanation:
When you have a polygon (shape with 3+ sides), you can split the shape into the lowest number of triangles and use that to calculate the interior angles of the shape. Thus works because triangles have angles that always add up to 180°
A Pentagon can be split into 3 triangles minimum, which means you have 180 + 180 + 180. Or...
180 x 3 = 540
A circus audience sits in rows around the performing ring. There are 9 seats in each row. How many rows will need to be set up if 513 people are expected to attend the show?
Answer:
57 rows
Step-by-step explanation:
Since each row will have a total of 9 seats, then we would simply need to divide the total number of individuals that will attend the show by 9 in order to calculate the number of rows that need to be set up around the performing ring.
513 / 9 = 57 rows
Therefore, we can see that we would need a total of 57 rows of 9 chairs each in order for there to be enough chairs to seat 513 people.
Can someone help me ill give Brainliest
How do I divide decimals?
Answer: move the point or decimal
Step-by-step explanation: you just remove the decimal that means the point the devide and put it back
plz hlawpppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
Answer:
3
Step-by-step explanation:
How do I solve 50% of 70??? I’m having trouble with percents and proportions.
Answer:
35
Step-by-step explanation:
i googled it :)
2:3 and 5:6
4:7 and 3:8
7:12 and 4:9
Express the following ratios in the lowest common denominator and compare them.
Answer:
5:6 is bigger than 2:3
4:7 is bigger than 3:8
7:12 is bigger than 4:9
Step-by-step explanation:
4:6 and 5:6
32:56 and 21:56
21:36 and 16:36
A zookeeper is preparing to care for snakes in an exhibit. For every 2 snakes, she needs 1 bowl of water. How many bowls of water are needed if the number of snakes is x? *
Answer:
k
Step-by-step explanation:
please help, im super late on my work :((
Which expression represents the base of the parallelogram
Answer:
Where is the image or work so I can help you?
Step-by-step explanation:
Foster is centering a photo that is 5 - inches wide on a scrapbook page that is 16 inches wide. How far
2
from each side of the page should he put the picture? Enter your answer as a mixed number.
9514 1404 393
Answer:
5 1/2 inches
Step-by-step explanation:
The page is 16 -5 = 11 inches wider than the photo, so the margin on either side needs to be 11/2 = 5 1/2 inches.
pls help:( this is due by the end of the day!!
Answer:
65°
Step-by-step explanation:
the degrees of the center angle is equal to the degrees of the arc so
?=65°
