Answer:
Area of a triangle can be calculated in different ways.
The most used and "normal" way is:
(width * height) / 2
Another way is by using herons formula, which looks like this:
a, b, c = different sides
s = (a + b + c) / 2
a = [tex]\sqrt{s(s - a)(s - b)(s - c)}[/tex]
If there was something that you didn't understand, just comment on the answer!
Glad to help you!
Mr. Kelsey just opened a T‑shirt shop and is determining what to charge for bundles of shirts. Which table of prices represents a proportional relationship?
Answer:i may not be right but i think its A
Answer:
B is correct
Step-by-step explanation:
The expression below shows how to convert 12 gallons to cups with one part missing
.
Which value completes the expression?
A.
B.
C.
D.
Answer:
The answer would be C
Step-by-step explanation: I got it correct on my test
Answer:
C. 4 quarts 1 gallon
Step-by-step explanation: i got it correct on the test, and someone else said it which validates me
How many solutions does the following equation have? 7(y+3)=5y+8 A No solutions B Exactly one solution C Infinitely many solutions
Answer:
C
Step-by-step explanation:
Answer:
Answer is B
Step-by-step explanation:
7y+21=5y+8
2y=-13
y= -6.5
Whats the worst zodiac sign
Answer:
Personal Experience
Step-by-step explanation:
Scorpio
Answer:
In my honest opinion I'd say Leo
Brian has 8 feet of canvas. He needs 1/4 foot to make a painting.
How many paintings can Brian make?
Answer:
32 paintings
Step-by-step explanation:
You have to divide 8 by [tex]\frac{1}{4}[/tex]
turn 8 into a fraction by putting a 1 under it, [tex]\frac{8}{1}[/tex], and flip the other fraction, [tex]\frac{4}{1}[/tex]
now, you multiply the fractions
[tex]\frac{8}{1}[/tex] ×[tex]\frac{4}{1}[/tex]= [tex]\frac{32}{1}[/tex], so you get 32 over one, which you can just simplify into 32
Brian can make 32 paintings.
The solution is, Brian can make 32 paintings
What is multiplication?In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
here, we have,
You have to divide 8 by
turn 8 into a fraction by putting a 1 under it, 8/1 , 4/1 and flip the other fraction,
now, you multiply the fractions
8/1×4/1=32 ,
so you get 32 over one, which you can just simplify into 32
Brian can make 32 paintings.
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Which description is correct for the polynomial 4x² + 3x +5?
A)quadratic trinomial
B)quartic monomial
C)cubic binomial
D)cubic trinomial
Answer:
A. Quadratic trinomial
Step-by-step explanation:
You can easily eliminate B and C because trinomial means there are three terms. B has monomial (one term) and C has binomial (two terms).
Now you have A and D. D is cubic which means the first term (4x²) would have to be cubed (4x³). Quadratic means it is squared.
Khalil has a red balls and 5 white ball
Express the ratio of white balls to red balls.
Answer:
5:1
please mark me as brainlist
Suppose that an Internal Revenue Service (IRS) representative claims that the average tax deduction for medical care is $1,250, and assume that this variable is normally distributed. A taxpayer who believes that the deduction might be less than $1,250 decides to randomly sample 12 families who have an average deduction of $934 with a standard deviation of $616. a. What are the null and alternative hypotheses? b. What is the value of the test statistic, i.e. t-stat, in this example? Show your work. c. What is the p-value associated with this test statistic? (HINT: you have less than 30 observations so you will need to use t-table to obtain critical values.) d. What can you conclude at the 10-percent level of significance? What can you conclude at the 5-percent level of significance? Explain. (HINT: you have less than 30 observations so you will need to use t-table to obtain critical values.)
Step-by-step explanation:
We have bar x = 934
S = 616
n = 12
A.
Null hypothesis: h0: u = 1250
Alternative hypothesis: h1: u< 1250
B. To get the t test statistic
T = 934-1250/616/√12
T = -316/616/3.4641
= -316/117.824
= -1.777
C. O value = p(t<-1.777)
This gives 0.0516
D. At 10% significance
O.0516<0.1 so we reject the null hypothesis and conclude that this deduction is < than 1250
At 5% level of significance
O.o516>0.05. we do not reject the null hypothesis. We conclude there is insufficient evidence of claim being less than 1250
Justin bought 12 souvenirs
during 6 days of vacation. How
many days will Justin have to
spend on vacation before he will
have bought a total of 20
souvenirs?
Answer:
10 days
Step-by-step explanation:
12 souvenirs during 6 days = 2 souvenirs per day
2x = 20
divide 2 on each side
x = 10
6. Write an equation for a line that passes through (6, 12) and (10, 20).
Answer:
Step-by-step explanation:
Y = mx +b / Slope intercept form
mx - y = -b / Standard form
6m -2 = -b / Plug in ( 6,2)
-9m -10 = -b / Plug in ( -9, 10)
Solve the system of equation for m and b.
6m -2 = -9m -10 , then 15m = -8 m = -8/15
b = -6m +2 ,then b= -6 ( -8/ 15) +2 = 78/15
-8/15 X - y = - 78/15
8X +15y = 78 / Equation of in standard form
Note: This is a different methods of solving this problem. All methods find their roots coming from the basic premises.
Equation of a line in the slope intersect form is
Y = mx +b
To convert to standard form of ax + by =c
Simply move over the parameters
mx - y = -b where a = m , and c = -b
Then we feed coordinates of 2 points in there
make a 2 equation with 2 unknown( m,b) to
solve.
May god be with you but help me
Answer:
150
Step-by-step explanation:
because 30 x 5 =150
Answer:
150°
Step-by-step explanation:
Here,
In linear pair we get the rest of its side angle we get is,
30° + x(unknown value) = 180°
=> x = 150°
Now,
Angle 1 = x. [As corresponding Angles]
So , value of 1 is 150° (Ans)
Score: 0 of 1 pt
11 of 13 (10 complete)
HW Score: 50%, 6.5 of 13 pts
9.4.45
Question Help
A car rental company charges a daily rate of $25 plus $0.30 per mile for a certain car. Suppose that you rent that car for a day and your bill (before taxes) is $145. How
many miles did you drive?
miles
p
til
fi
t
-
vo
va
(1,1)
More
Enter your answer in the answer box and then click Check Answer
?
Answer:
3335552255442882283222333
What is y when x =17
Answer:
The answer is 30
Answer:
y = 30
Step-by-step explanation:
There are 2 ways to find the answer to this.
#1
The relationship between x and y is y = x+13.
x is 17 so 17+13 would equal y.
17+13 = 30
y = 30
#2
rule for y: y increases by 4
26+4 = ?
26+4 = 30
y = 30
Step-by-step equation for a B & C Must show all work .work on a piece of paper send a piece of paper thank you. Whoever gets it right gets extra points.
Hey there!
a.) 1 inch
beginning = 2; end = 3; difference of 1
b.) December, because the length was, let's say, 2, then it went down 1 (so we're at 1), then went up 3 (4), then went down
c.) in December
Hope it helps, have a great day!
Step-by-step explanation:
a.total change in my hair =2-1+3-4+3=3inches
b.my hair is longer on December because the length of my hair is 3inches but 2inches in January.
c.my hair is longest as on December because the length of my hair is longer than on other month.
Blake is going to invest in an account paying an interest rate of 3% compounded annually. How much would Blake need to invest, to the nearest ten dollars, for the value of the account to reach $83,000 in 16 years?
Answer:
51720
Step-by-step explanation:
Which of the following does not represent a function of x
Answer:
C
Step-by-step explanation:
PLS PLS PLS HELP!!! I'LL MARK BRAINLIEST!!!
Answer:
Its B
Step-by-step explanation:
Can come one help me please :) thank you
Step-by-step explanation:
Given
[tex]( {x}^{2} ) ^{4} \\ = {x}^{2 \times 4} \\ = {x}^{8} [/tex]
Hope it will help :)
Answer:
X ^8
Step-by-step explanation:
When you raise a power by another power, you multiply the powers. 2*4=8
. A manufacturer of salad dressings uses machines to dispense liquid ingredients into bottles that move along a filling line. The machine that dispenses salad dressings is working properly when 8 ounces are dispensed. Suppose that the average amount dispensed in a particular sample of 35 bottles is 7.91 ounces with a variance of 0.03 ounces squared. Is there evidence that the machine should be stopped and production wait for repairs
Answer:
The calculated value |t| = |-3.082| =3.082 > 2.0322 at 0.05 level of significance
The null hypothesis is rejected
An alternative hypothesis is accepted
There is evidence that the machine should be stopped and production wait for repairs
Step-by-step explanation:
Step(i):-
Given that the mean of the Population(μ) = 8 ounces
Given that the sample size 'n' = 35
The mean of the sample(x⁻) = 7.91
The variance of the sample S² = 0.03 ounces
S = √0.03 = 0.1732
Step(ii):-
Null Hypothesis: H₀: There is no evidence that the machine should be stopped and production wait for repairs
Alternative Hypothesis: H₁: There is evidence that the machine should be stopped and production wait for repairs
[tex]t = \frac{x^{-} -mean}{\frac{S}{\sqrt{n} } }[/tex]
[tex]t = \frac{7.91 -8}{\frac{0.1732}{\sqrt{35} } }[/tex]
t = - 3.082
|t| = |-3.082| =3.082
Degrees of freedom
ν = n-1 = 35-1=34
t₀.₀₅ = 2.0322
The calculated value |t| = |-3.082| =3.082 > 2.0322 at 0.05 level of significance
The null hypothesis is rejected
An alternative hypothesis is accepted
conclusion:-
There is evidence that the machine should be stopped and production wait for repairs
please just answer this question
Answer:
6 pieces
Step-by-step explanation:
They have a common denominator of 6, so it should be cut into 6 pieces. Sue would get 3 pieces (half the pan) and Dena would get 2 pieces (one-third the pan)
A player hits the ball 30% of the time. If he gets 450 chances what is the total number of times he will hit the ball
Answer:
135
Step-by-step explanation:
100% = 450
1% = 4.5
30% = 4.5 x 30 = 135
A washer and a dryer cost $581 combined. The washer costs $69 less than the dryer. What is the cost of the dryer?
Hi there!
So we know that the total would be $581 and so we also know that the washer cost 69 less than the dryer...
Let think...if we want to find the total, we should add 81 and 69 first...
[tex]81+69=150[/tex]
Now we can subtract 362 by 150 as a try...
[tex]362+150=512[/tex]
Now let try again...
If it would be 325 as the dryer, then the cost of the washer would be $69 less.
[tex]325-69=256[/tex]
Ok so this means that if we add the two numbers, we’ll get 581 if it is right...
[tex]256+325=581[/tex]
Perfect, so this means that the cost of the dryer is in fact 325$ and the washer would be the cost of 256$.
Marking people as brainlist please help if you know geometry
Answer:
x=12
Step-by-step explanation:
The diagonals are angle bisectors, so 4x+22 = 6x-2
A single card is drawn at random from a standard 52 card deck.
Work out the following probabilities in their simplest form:
P(6) =
P(not 6) =
The five members of the Traynor family each buy train tickets. During the train ride, each family member buys a boxed lunch for $6.50. If the total cost of the trip is $248.50, what is the price of each train ticket?
Answer:
5555555
Step-by-step explanation:
I really dont know
Find a solution to the linear equation y=−x+7 by filling in the boxes with a valid value of x and y.
Answer:
[tex](x,y) = (0,7)[/tex]
[tex](x,y) = (3,7)[/tex]
Step-by-step explanation:
The question and the attached image are different. However, the attached image answers the question y = -4 correctly.
So, I will solve for: [tex]y = -x + 7[/tex]
Given
[tex]y = -x + 7[/tex]
Required
Possible values of x and y
Let x = 0:
[tex]y = -x + 7[/tex]
[tex]y = -0 + 7[/tex]
[tex]y = 7[/tex]
So, we have:
[tex](x,y) = (0,7)[/tex]
Let y = 4
[tex]y = -x + 7[/tex]
[tex]4 = -x + 7[/tex]
Collect Like Terms
[tex]x = -4 + 7[/tex]
[tex]x =3[/tex]
So, we have:
[tex](x,y) = (3,7)[/tex]
So, all you need to do is: assume a value for either x or y, then solve for the other variable.
WILL MARK BRAINLIEST
Answer:
36
Step-by-step explanation:
6^2 = 6 × 6
----------------
6×6 = 36
Answer:
6² = 36
Step-by-step explanation:
6 squared is 6 · 6. Hence, 36.
7. Si el perímetro de un cuadrado es igual 48 m El área del mismo es igual
a) 134 m? b) 144 m2 C) 154 m2 d) 124 m2
Answer:
D) 124 m2 creo .............
A migrating bird flies 800 miles in 16 hours. How many miles does it fly in 7 hours?
Hi there!
miles=350 miles
1.Divide starting terms:
[tex]800*16=50[/tex]
2.Multiply by 7:
[tex]50[/tex]·[tex]7=350[/tex]
Therefore, a migrating bird flys 350 miles per 7 hours.
For the function k(x) =Negative StartFraction 1 Over 16 EndFraction x – 8, what is the inverse function k–1(x)?
Answer:
Step-by-step explanation: it’s D on edge
The inverse function is,
⇒ k⁻¹ (x) = -16 (x + 8)
What is Inverse function?
The inverse function returns the original value for which a function gave the outputs.
Given that;
The function is,
k (x) = -1/16 x - 8
Now, Find the inverse function as;
k (x) = -1/16 x - 8
Substitute k (x) = y,
y = -1/16 x - 8
Find the value of x in terms of y,
y = -1/16 x - 8
y + 8 = -1/16 x
16 ( y + 8 ) = -x
x = -16 ( y + 8 )
Replace x and y,
y = -16 ( x + 8 )
Thus, The inverse function is,
⇒ k⁻¹ (x) = -16 (x + 8)
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