the answer is c hope this help's
A diagonal of a rectangle is 8cm and forms an angle measuring 30 with one side. Find the area of the rectangle.
Answer:
Arectangle=27.68cm (approximately)
Step-by-step explanation:
in order to find the area of the rectangle first you need to find the measure of the length and width.
since both of them aren't given ,use trigonometry to find the value of the length and width.
sin30°=opposite/hypotenuse
sin30°=opposite/8cm
opposite=sin30°*8cm. >sin30°=0.5
opposite=4cm
cos30°=adjacent/hypotenuse
cos30°=adjacent/8cm
adjacent=cos30°*8cm. cos30°=0.866
adjacent=6.92cm (approximate value)
Arectangle= bh
Arectangle=4cm*6.92cn
Arectangle=27.68cm
Compund Inequalities. Solve for x. 11x+4 −25 A. -3/2 -3/2 C. x<1 D. There are no solutions. E. All values of x are solutions.
Answer:
A
Step-by-step explanation:
11x + 4 < 15 OR 12x - 7 > -25
11x < 11 OR 12x > -18
x < 1 or x > -1.5
The answer is -3/2 < x < 1.
Please help fast!, i'd really like the correct answers- :'O
Answer: 2/5
Step-by-step explanation:
[tex]-\frac{2}{5} + \frac{4}{5}[/tex]= 2/5
Answer:
−2/5 + 4/5= 2/5
2/5
I'd love brainliest btw (❁´◡`❁)
If 20% of a number is 20
find that number
Answer: 100
1. Set a proportion.
[tex]\frac{20}{x} = \frac{20}{100}[/tex]
x = 100
How do I make sure if it is correct?
100 x .2 = 20
A preferred stock pays an annual dividend of $6.75 and sells for $58.60 a share. What is the rate of return on this security?
Answer:
11.52%
Step-by-step explanation:
Price (p0) = 58.6
Dividend (D1) = 6.75
P0= D1/ke
58.6 = 6.75/ke
ke = 6.75/58.6
ke = 0.1152 or 11.52%
Rate of return (ke) = 11.52%
Li-Hua wants to create a triangular fame. She has two pieces of wood, which are 6 inches long and 9 inches long, to use for two sides of the triangle. Which of the following CANNOT be the lenth of the third frame and why?
a) 4 inches
b) 6 inches
c) 13 inches
d) 16 inches
Answer:
16 inches
Step-by-step explanation:
in a triangle, the sum of any two sides must be greater than the third side
Which of the following statments is true regarding the solutions to the quadratic equation 5x^2 +6x+2=0? See picture
Answer:
The quadratic equation has two complex solutions.
Step-by-step explanation:
5x² + 6x + 2 = 0
To know the the correct answer to the question, we shall determine the discriminant of the equation. This can be obtained as follow:
5x² + 6x + 2 = 0
ax² + bx + c = 0
Comparing the above equation, we can obtain:
a = 5
b = 6
c = 2
Discriminant (D) =?
D = b² – 4ac
D = 6² – (4 × 5 × 2)
D = 36 – 40
D = – 4
Since the discriminant of the equation is less than 0, it means that the equation has no real root ( i.e the equation has two complex solution).
an empty suitcase has a mass of 2 kilograms. Draw a bar model to find its mass in grams.
Answer:
Since I can't draw it I'll give you the answer. 2,000 g.
Step-by-step explanation:
A kilogram is 1000 grams. Multiply 1000x2 to get 2000. But add the g for grams or the answer is considered wrong by teachers.
The $x$-intercept of a positively-sloped line is -5, and the area of the triangle formed by the line, the $x$-axis, and the $y$-axis is 10. What is the slope of the line?
Answer:
4/5 OR -4/5
Step-by-step explanation:
So, area of triangle = 1/2 * base * height
base = 5 (because x-axis is base, x-intercept is -5, so x-length = 5)
height is unknown
area = 10
We can form the equation: 1/2 * 5 * height = 10
Rearrange terms to get: height (y-height) = 10 / (0.5 * 5) = 4
Following the formula for gradient, dif in y / dif in x, we get 4/5
Therefore our gradient is (4/5), or 0.8.
But because we are only told the x-intercept, it can cross the y axis at y = 4 or y = -4. So there are actually 2 possible gradients, 4/5 and -4/5
A recipe for chocolate chip cookies calls for 1 1/4 cups of flour. If you are making 2 2/3 recipes, how many cups of flour are needed?
(Simplify your answer. Type a whole number, reaction, or mixed number.)
Answer:
2 2/3 cups of flour
Step-by-step explanation:
To answer this question you need to multiply 1 1/4 by 2 2/3
To multiply first make each mixed number an improper fraction
This means multiplying the whole number by the denominator, then adding the numerator
For example 1 1/4 would become 5/4 because 4 x 1 = 4 and 4 + 1 = 5, & 2 2/3 would be 8/3
Now multiply the numerator and denominator (5/4 x 8/3)
30/12 simplified to 8/3 (2 2/3)
-10r-20=-20 i need help with this question
Answer:
r = 0
Step-by-step explanation:
To solve this for r, add 20 to both sides. The result will be -10r = 0, and so
the solution is r = 0.
Answer:
0
Step-by-step explanation:
-10r - 20 = -20
-10r = -20 + 20
-10r = 0
r = 0
One-way Analysis of Variance uses a F test to compare the variance between the treatment level means to the error variance (the pooled variance within levels). For this test, one assumption is that the observations are random samples drawn from normally distributed populations with unequal variances.TrueFalse
Answer:
False
Step-by-step explanation:
The assumption of ANOVA are:
1) the k- samples are selected randomly and independently from the respective populations
2) All the k population from which samples are drawn are normally distributed with means u1,u2, u3,........
3) the observations are random samples drawn from normally distributed populations with equal variances. The technical term for this assumption is Homoscedasticity.
Failure of any assumption will impair the technique. However, minor deviations can be tolerated. Sometimes square roots and logs are used to make assumptions true.
Abel and Cedric will share a total of $180. Abel will receive half as much as Cedric. What amount. in dollars, will Cedric receive (Disregard the $ sign when gridding your answer.)
Answer:
Cedric's share=$120
Abel's share=$60
Step-by-step explanation:
Abel will receive half as much as Cedric
Let
Cedric's share=x
Abel's share = 1/2 of x
Total money=$180
x + 1/2x = 180
2x+x/2 =180
3/2x=180
Divide both sides by 3/2
x= 180÷3/2
=180 × 2/3
=360/3
=120
Therefore,
Cedric's share = x = 120
Abel's share=1/2x
=1/2 × 120
=120/2
=60
Cedric's share=$120
Abel's share=$60
What is the domain of the function
{(−5,6),(2,−8),(7,12),(−2,−8)}
A.{−5,6,2,−8,7,12,−2}
B.{6,−8,12}
B.{−5,2,7,−2}
B.{6,2,7,12}
Answer:
Domain { -5,2,7,-2}
Step-by-step explanation:
The domain is the input values, in this case the x values
Domain { -5,2,7,-2}
Answer:
{ - 5 , 2 , 7 , - 2 }Option C is the correct option.
Step-by-step explanation:
Domain is the set of all values of x
{( -5 , 6 ) , ( 2 , -8 ) , ( 7 , 12 ) , ( -2 , -8 )
⇒ { - 5 , 2 , 7 , - 2 }
Hope I helped!
Best regards!
Use the drop-down menus to complete each
statement
On the time line, each hash mark represents
years.
The Council of Trent lasted
v years.
>
Answer:
Each hashmark represents 10 years, concil of trent was for 25 years,
pls give thanks and mark brainliest
Answer:
It's TEN and EIGHTEEN.
Step-by-step explanation:
25 PTS BRAINLIEST HELP
Find (f +9) () for the following functions.
f(3) =+2 and g() = 3x - 1
f() = 2x and g (2)
-40 +5
IITT
f() = and g(x) = 2x - 7
f(0) = -3+6 and g(x) = 2x2 + 3x - 5
+ 42 +1
- 63 - 5
= 22 + 3.0 + 1
:: -20 + 3
:: -62? + 10.
:: I? + 2x - 7
:: -322 - 30 +11
:: 32 +51 - 2
:: -2.1 +5
:: 22 - 2x + 7
:: -2x4 - 3x3 + 1722 + 182 - 30
#: 23-71
Answer:
= 22 + 3,0 + 1 = 36
= -20 + 3 = -17
= -62 + 10 = -52
= 2 x (-7) = -14
= (-322) - 30 + 11 = 281
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The face of a cat is symmetrical, with the bridge of the nose falling on the line of symmetry
directly between the eyes. If a cat’s right eye is 3 inches from the bridge of its nose, how far is
the cat’s left eye from its right eye?
Answer:
6 inches
Step-by-step explanation:
just make
3 - (-3) = 6
So you will be calculating that distance.
(–6x2 – 3x – 1) - (x + 8)
Answer:
-6x^2-4x-9
Step-by-step explanation:
(–6x^2 – 3x – 1) - (x + 8)
Distribute the minus sign
–6x^2 – 3x – 1 - x - 8
Combine like terms
-6x^2-4x-9
Given the following expression, identify the coefficient of the 2nd term
-6n^2+5n+3
A. -6
B. 2
C. 5
D. 3
Answer:
C. 5
Step-by-step explanation:
The "second term" is basically just the second coefficient/variable pair. The first one is -6n and the second one is 5n. The coefficient is the number attached to the variable, and in 5n, 5 is the coefficient.
Assume that the amount of time that it takes an employee to service a car at an oil change facility follows the uniform probability distribution between 21 and 38 minutes. What is the probability that a randomly selected car will require less than 25 minutes to service?
Answer:
The probability is [tex]P(X < 25) = 0.308[/tex]
Step-by-step explanation:
From the question we are told that
The amount of time is uniform probability distribution between 21 and 38 minutes.
Given that the amount of time is uniformly distributed then the probability that a randomly selected car will require less than 25 minutes to service is mathematically evaluated as
[tex]P(X < 25) = \frac{ 25 - 21}{38 - 21}[/tex]
=> [tex]P(X < 25) = 0.308[/tex]
Solve √108÷√125+√75 step by step
Answer:
Step-by-step explanation:
√108 ÷ √125 + √75
= 6√3 ÷ 5√5 + 5√3
= 11√3 / 5√5
hope this helps
plz mark as brainliest!!!!!!!
(2x-) + (1/2xy-10) x=4 and y=7
Answer:
0
Step-by-step explanation:
[2(4)-12]+[1/2(4)(7)-10]
(8-12)+(2(7)-10)
-4+14-10
0
2x + 5 = 25 solve for x
will give brainliest
Answer:
x = 10
Step-by-step explanation:
Subtract 5 from both sides:
2x + 5 = 25
2x = 20
Divide each side by 2
x = 10
Answer:
x=10
Step-by-step explanation:
25-5 = 20, so then you divide 20 by 2 to get 10
A ........... divides a two dimentional shape into two congruent shapes.
Answer:
A rectangle is a two - dimensional shape, so let me explain using it as an example.
The diagonal of a rectangle divides the rectangle into two triangles that are congruent (the same size and shape.)
Another example is parallelogram; the diagonal of a parallelogram also divides the figure into two separate shapes that are congruent.
Hope this helps!
Need help with factoring the trinomial and simplifying
Answer:
Hello
Step-by-step explanation:
From the answer to the second Question...
x²-6x+9 = -13 + 9
Factorize L.H.S
x² - 3x - 3x + 9 = -4
x(x - 3) - 3(x - 3) = -4
(x - 3)(x - 3) = -4
(x - 3)² = -4
Hence the answer is
[tex] \color{purple}{ \boxed{ {(x - 3)}^{2} = - 4}}[/tex]
Answer:
-3 and -4 are the correct answers!!
What are the two types of hypotheses used in a hypothesis test? type I and type II null and alternative Your answer is correct. left-tailed and right-tailed population and sample How are they related? They sum to zero. One is a subset of the other. They are equal. They are complements.
Answer:
There are two types of hypotheses tests. null and alternative
They are complements.
Step-by-step explanation:
There are two types of hypotheses tests. null and alternative
the table shows the summary of both tests.
True Situation DECISION
Accept H0 Reject H0
(or accept Ha)
H0 is true Correct decision Wrong Decision
(no error) type I error
H0 is false Wrong Decision Correct decision
type II error ( no error)
The probability of making a type I error is conventionally denoted by alpha and that of committing a type II error is indicated by beta.
∝ = P ( type I error) = P (reject H0 / H0 is true)
β = P (type II error) = P (accept H0 / H0 is false)
When ∝ becomes larger, β tends to become smaller . There is inverse relationship between ∝ and β.
When H0 is true Ha is false when Ha is false H0 is true. So they are compliments of each other.
express1470 and 7056 as a product of prime factors hence eveluate leaving the answer in prime factors form
Answer:
Step-by-step explanation:
the prime factors of 1470= 2 x 3 x 5 x 7 x 7
also of 7056=2 x 2 x 2 x 2 x 3 x 3 x 7 x 7
hence of
1470 x 7056=2 x 3 x 5 x 7 x 7 x 2 x 2 x 2 x 2 x 3 x 3 x 7 x 7
required answer pls hit the stars and brain-list it
3.6399; thousandths round it
Answer:
3.6399 = 3.640
Step-by-step explanation:
[tex]3.6399\\1\:2\:3[/tex]
Rounding to nearest thousandth means rounding to 3 decimal place
(0 to 4) =round down
(5 to 9)= round up
- On an arcade game, Connor got the 100-point bonus 5 times and the 150-point penalty 3 times. If he started with 200 points, how many points does he have now? Explain how you found your answer.
Answer: 1,150
Step-by-step explanation:
100 x 5 = 500
150 x 3 = 450
500 + 450 + 200
Connor has 1,150 points
Y=? Please help ASAPPP will mark brainliest
Answer:
y=4
Step-by-step explanation:
5x4=20
20x4=80
80x4=320
and so on
Answer:
y = 5 * 4^x
Step-by-step explanation:
For each iteration of x, the output of y is increased by a multiple of 4.
So we can write the equation y = 5*4^x
Cheers.