Answer: john answer it correctly
Step-by-step explanation:
6.6.6_=216
PLEASE HELP ILL GIVE BRAINLIEST
Answer:
x = 150°
Step-by-step explanation:
From the picture attached,
Segment AC and segment BC are the tangents to circle O.
By the property of angle between tangent and the radius of a circle,
"Angle between the radius and tangent drawn to the circle is 90°"
m(∠OAC) = m(∠OBC) = 90°
Sum of opposite angles of the quadrilateral OBCA is 180°,
m(∠OAC) + m(∠OBC) = 180°
Therefore, quadrilateral OBCA is a cyclic quadrilateral.
By the same property of cyclic quadrilateral,
m(∠AOB) + m(∠ACB) = 180°
x° + 30° = 180°
x = 180 - 30
x = 150°
PLEASE IT'S VERY IMPORTANT FOR ME
Determine the area of the composite figure.
Determine the perimeter of the composite figure.
Add the half circle to the rectangle and subtract the triangle.
Area of half circle = 1/2 x pi x 8.5^2 = 113.4325
Area of rectangle = 11 x 17 = 187
Area of triangle: 1/2 x 3 x 17 = 25.5
Total area: 113.4325 + 187 - 25.5 = 274.9325 square m
Perimeter: outside dimension for 1/2 circle = 1/2 x 3.14 x 17 = 26.69
Perimeter = 26.69 + 11 + 11 + 9 + 9 = 66.69 m
Graph 3x – 4y = 12 use slope intercept
A pyramid has a regular hexagonal base with side lengths of 4 and a slant height of 6. Find the total area of the pyramid.
9514 1404 393
Answer:
113.57 square units
Step-by-step explanation:
The area of each of the 6 triangular faces is ...
A = 1/2bh
A = (1/2)(4)(6) = 12 . . . . square units
The area of the base is ...
A = (3√3)/2·s² . . . . . . for side length s
A = (3√3)/2×4² = 24√3 . . . . square units
Then the total area is ...
total area = base area + face area
= 24√3 + 6(12) = 24(3 +√3) ≈ 113.57 . . . square units
Verify the following trigonometric identity: (csc x + cot x)^2 = cos x +1/ 1- cos x
9514 1404 393
Explanation:
As written, the equation is not an identity. Perhaps you want to show ...
(csc(x) +cot(x))² = (cos(x) +1)/(1 -cos(x))
__
We will transform the left-side expression to the form of the right-side expression.
[tex](\csc(x)+\cot(x))^2=\left(\dfrac{1}{\sin(x)}+\dfrac{\cos(x)}{\sin(x)}\right)^2=\dfrac{(1+\cos(x))^2}{\sin(x)^2}\\\\=\dfrac{(1+\cos(x))^2}{1-\cos(x)^2}=\dfrac{1+\cos(x)}{1-\cos(x)}\cdot\dfrac{1+\cos(x)}{1+\cos(x)}=\boxed{\dfrac{\cos(x)+1}{1-\cos(x)}}[/tex]
The drag Prevnar is a vaccine meant to prevent meningitis. It is typically administered to infants between 12 and 15 months of age. Of the 710 infants,121 experienced a loss of appetite. Is there significant evidence to conclude the proportion of infants who receive Prevnar and experience of a loss of appetite is different from 0.135, the proportion of children who experience a loss of appetite with competing medications? Use α=0.01 level of significance.
Answer:
The pvalue of the test is 0.0058 < 0.01, which means that there is significant evidence to conclude the proportion of infants who receive Prevnar and experience of a loss of appetite is different from 0.135.
Step-by-step explanation:
Test if the proportion of infants who receive Prevnar and experience of a loss of appetite is different from 0.135
This means that the null hypothesis is:
[tex]H_{0}: p = 0.135[/tex]
And the alternate hypothesis is:
[tex]H_{a}: p \neq 0.135[/tex]
The test statistic is:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.
0.135 is tested at the null hypothesis:
This means that [tex]\mu = 0.135, \sigma = \sqrt{0.135*0.865}[/tex]
Of the 710 infants,121 experienced a loss of appetite.
This means that [tex]n = 710, X = \frac{121}{710} = 0.1704[/tex]
Value of the test-statistic:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
[tex]z = \frac{0.1704 - 0.135}{\frac{\sqrt{0.135*0.865}}{\sqrt{710}}}[/tex]
[tex]z = 2.76[/tex]
Pvalue of the test and decision:
The pvalue of the test is the pobability that the population proportion differs from the tested proportion by at least 0.1704 - 0.135 = 0.0354, which is P(|z| > 2.76). This probability is 2 multiplied by the pvalue of z = -2.76.
Looking at the z-table, z = -2.76 has a pvalue of 0.0029
2*0.0029 = 0.0058
The pvalue of the test is 0.0058 < 0.01, which means that there is significant evidence to conclude the proportion of infants who receive Prevnar and experience of a loss of appetite is different from 0.135.
Enter the product as a product of a hole number and unit fraction. 2 x 5/4.
What is the remainder when 7x^2- x^3is divided by x - 8?
Answer:
The remainder is -64
Step-by-step explanation:
Given
[tex]7x^2 - x^3[/tex]
Divided by [tex]x - 8[/tex]
Required
Determine the remainder
Equate [tex]x - 8[/tex] to 0
[tex]x - 8 = 0[/tex]
Solve for x
[tex]x = 8[/tex]
Using remainder theorem, substitute 8 for x in [tex]7x^2 - x^3[/tex]
So, we have:
[tex]7 * 8^2 - 8^3[/tex]
Evaluate all exponents
[tex]7 * 64 - 512[/tex]
[tex]448 - 512[/tex]
[tex]-64[/tex]
A circle has a diameter of 46 cm. What is its radius?
Answer:
Step-by-step explanation:
radius = diameter/2 = 46cm/2 = 23 cm
Given a family with three children find the probability of the event the oldest two are girls given the oldest is a girl
Answer:
28.57% is the answer
Consider the population of a small town that grows according to the explicit rule:
Pn = 45000 + 85n, where n is the number of years after 2002.
1. Find P7
2. Explain what the answer for P7 represents in terms of the application. (Your
explanation should include a reference to a year.)
Please help me before it is due.
Answer:
45595
Step-by-step explanation:
plug in 7 for n and solve
This is the population 7 years after 2002(2009)
please help it due today?
Answer:
B. It has four right angles.
E. opposites side are parallel.
F. Diagonal are congruent.
A clothing store donated a percent of every sale to hospitals. The total sales were $7,750 so the
store donated $310. What percent of $7,750 was donated to hospitals?
Answer:
4%
Step-by-step explanation:
310 /7759 x 100% = 4%
A cube has volume V = sº, where s is the length of a side. Find the side length for a cube
with volume 8000 cm?
Answer:
512 units.
Step-by-step explanation:
V = S x S x S
V = 8 x 8 x 8
V = 512
So your answer is 512 units! Please mark brainliest if I got it right :)
answer
y=-0.0241x^2+x+5.5
using the balanced equation 4FE+3O2 --> 2fe2O3 calculate how many grams of Fe2O3 are produced when 42.7 grams of Fe is reacted
The coefficients in the balanced reaction
4 Fe + 3 O₂ → 2 Fe₂O₃
represent the ratio of moles of each reactant to each product. That is, for every 4 moles of Fe and 3 moles of O₂, 2 moles of Fe₂O₃ are produced.
First convert the given amount of Fe into moles. Fe has a molar mass of 55.845 g/mol, so you have
42.7 g × (1/55.845 mol/g) = 0.765 mol
of Fe.
Find how many moles of Fe₂O₃ are produced given this much Fe and an abundant supply of O₂. Multiply the coefficients of the balanced reaction by 0.765/4 :
0.765 Fe + 0.573 O₂ → 0.382 Fe₂O₃
Now convert the amount of Fe₂O₃ to grams. O has a molar mass of 15.999 g/mol, so Fe₂O₃ has a total molar mass of about
2 (55.845 g/mol) + 3 (15.999 g/mol) = 159.687 g/mol
Then the reaction would produce about
0.382 mol × (158.687 g/mol) ≈ 61.0 g
of Fe₂O₃.
(6y + 3) minus (3y + 6) when y=7
Answer:
y
Step-by-step explanation:
((((2•3y3) - 22y2) - 3y) - —) - 2
y
STEP
4
:
Rewriting the whole as an Equivalent Fraction
4.1 Subtracting a fraction from a whole
Rewrite the whole as a fraction using y as the denominator :
6y3 - 4y2 - 3y (6y3 - 4y2 - 3y) • y
6y3 - 4y2 - 3y = —————————————— = ————————————————————
1 y
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
STEP
5
:
Pulling out like terms
5.1 Pull out like factors :
6y3 - 4y2 - 3y = y • (6y2 - 4y - 3)
Trying to factor by splitting the middle term
5.2 Factoring 6y2 - 4y - 3
The first term is, 6y2 its coefficient is 6 .
The middle term is, -4y its coefficient is -4 .
The last term, "the constant", is -3
Step-1 : Multiply the coefficient of the first term by the constant 6 • -3 = -18
Step-2 : Find two factors of -18 whose sum equals the coefficient of the middle term, which is -4 .
-18 + 1 = -17
-9 + 2 = -7
-6 + 3 = -3
-3 + 6 = 3
-2 + 9 = 7
-1 + 18 = 17
Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored
Adding fractions that have a common denominator :
5.3 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
y • (6y2-4y-3) • y - (6) 6y4 - 4y3 - 3y2 - 6
———————————————————————— = ———————————————————
y y
Equation at the end of step
5
:
(6y4 - 4y3 - 3y2 - 6)
————————————————————— - 2
y
STEP
6
:
Rewriting the whole as an Equivalent Fraction :
6.1 Subtracting a whole from a fraction
Rewrite the whole as a fraction using y as the denominator :
2 2 • y
2 = — = —————
1 y
Checking for a perfect cube :
6.2 6y4 - 4y3 - 3y2 - 6 is not a perfect cube
Trying to factor by pulling out :
6.3 Factoring: 6y4 - 4y3 - 3y2 - 6
Thoughtfully split the expression at hand into groups, each group having two terms :
Group 1: -3y2 - 6
Group 2: 6y4 - 4y3
Pull out from each group separately :
Group 1: (y2 + 2) • (-3)
Group 2: (3y - 2) • (2y3)
Bad news !! Factoring by pulling out fails :
The groups have no common factor and can not be added up to form a multiplication.
Polynomial Roots Calculator :
6.4 Find roots (zeroes) of : F(y) = 6y4 - 4y3 - 3y2 - 6
Polynomial Roots Calculator is a set of methods aimed at finding values of y for which F(y)=0
Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers y which can be expressed as the quotient of two integers
The Rational Root Theorem states that if a polynomial zeroes for a rational number P/Q then P is a factor of the Trailing Constant and Q is a factor of the Leading Coefficient
In this case, the Leading Coefficient is 6 and the Trailing Constant is -6.
The factor(s) are:
of the Leading Coefficient : 1,2 ,3 ,6
of the Trailing Constant : 1 ,2 ,3 ,6
Let us test ....
P Q P/Q F(P/Q) Divisor
-1 1 -1.00 1.00
-1 2 -0.50 -5.88
-1 3 -0.33 -6.11
-1 6 -0.17 -6.06
-2 1 -2.00 110.00
Note - For tidiness, printing of 13 checks which found no root was suppressed
Polynomial Roots Calculator found no rational roots
Adding fractions that have a common denominator :
6.5 Adding up the two equivalent fractions
(6y4-4y3-3y2-6) - (2 • y) 6y4 - 4y3 - 3y2 - 2y - 6
————————————————————————— = ————————————————————————
y y
Polynomial Roots Calculator :
6.6 Find roots (zeroes) of : F(y) = 6y4 - 4y3 - 3y2 - 2y - 6
See theory in step 6.4
In this case, the Leading Coefficient is 6 and the Trailing Constant is -6.
The factor(s) are:
of the Leading Coefficient : 1,2 ,3 ,6
of the Trailing Constant : 1 ,2 ,3 ,6
Let us test ....
P Q P/Q F(P/Q) Divisor
-1 1 -1.00 3.00
-1 2 -0.50 -4.88
-1 3 -0.33 -5.44
-1 6 -0.17 -5.73
-2 1 -2.00 114.00
Note - For tidiness, printing of 13 checks which found no root was suppressed
Polynomial Roots Calculator found no rational roots
Final result :
6y4 - 4y3 - 3y2 - 2y - 6
————————————————————————
y
Answer:
72 I think, I don't rly know use a calculator lol
Which of the following functions shows the cube root parent function,
F(x) =3sqrt xhorizontally compressed
The function which shows the cube root of parent function is; Choice A; G(x) = ³√(1/4)x.
What is the function that shows the cube root of the parent function?It follows from task content that upon observation and test of values that;
At point x = 4, G(x) = 1.
This of course stands through for the graph and hence Choice A; is correct.
Read more on graph of functions;
https://brainly.com/question/3939432
#SPJ2
Answer:
Correct answer is C.
Step-by-step explanation:
Did the test
What is the measure of n?
n
28
im
7
n = [?]
Enter
will give u brainliest rn. no link
Answer:
14
Step-by-step explanation:
28/n = n/7
cross multiply
n^2=196
n=14
2 5/6 x 3 7/8 plss help
Answer:
Exact form: 925/48
Decimal form: 19.27083
Mixed number form: ↓↓↓↓
[tex]19 \times \frac{13}{48} [/tex]
Step-by-step explanation:
hope that helps :) have a good day!
a Clark $200 per week. she also receive a commission a 20% of her weekly salary every time she cells an Appliance. how many appliances must the clark sell in order to gtow $800 per week?
A.15
B. 40
C. 10
D. 50
E. 20
Answer:
20......................................................................................
please help if you understand this question!
Answer:
B. x=5, y=4
Step-by-step explanation:
the tiny triangle is 3x smaller so just divide those numbers by three
Help me figure out (25c + 35) please
Answer:
izoom out,its too close
Answer:
5(5c + 7)
Step-by-step explanation:
Common factor of 25 and 35:
5
Simplified:
5(5c + 7)
A rectangle is 8 cm long and 3.5 cm wide.
a) Calculate the area of the rectangle.
State the units of your answer.
Answer:
area = 28 cm²
Step-by-step explanation:
area = 8 x 3.5 = 28 cm²
Answer:
28 cm²
Step-by-step explanation:
Because the length of the rectangle is 8 and the width is 3.5 cm which we know we that the area is "length x width" so we should multiply both numbers getting 28 cm
EASY 7TH GRADE MATH, WILL GIVE BRAINLIEST AND THANKS
Answer:
D. 8
Step-by-step explanation:
2p=16
divide both sides by 2 to get p alone
p=8
Answer:
The number of quarts of papaya juice in 1 quart of apply juice is 8.
Step-by-step explanation:
2p = 16
2p/2 = 16/2
p = 8
Help please I need it DONT scam
Which coordinate grid shows points and plotted at (4.3)
Answer:
B
Step-by-step explanation:
(x-coordinate, y-coordinate) and the horizontal axis refers to the x-axis and the vertical axis refers to the y-axis.
3) The volume of a cube is 1,000 cu. in. What is the height of the cube? (Remember what is true about a cube!)
Answer:
10 inches
Step-by-step explanation:
Will give brainliest
angle 2 and angle 6 need to be congruent
An arm wrestler is the champion for a period of 75 hours. (Here, by an hour, we mean a period starting from an exact hour, such as 1 P.M., until the next hour.) The arm wrestler had at least one match an hour, but no more than 125 total matches. Show that there is a period of consecutive hours during which the arm wrestler had exactly 24 matches.
Answer:
The answer is "In the i-th to J-th hour, the Wrestler played only 24 match-ups".
Step-by-step explanation:
Let [tex]x_i[/tex] label the number of teams played by the wrestler for [tex]1 \leq i \leq 75[/tex], after i-th hour, where [tex]1 \leq x_i \leq 125[/tex]. This also means [tex]25 \leq x_i + 24 \leq 149[/tex]. The Pigeonhole Principle means that [tex]\ni i \neq j \ni x i+ 24 = x ,j[/tex] is played exactly 24 matches between the i-th and j-th-hours end. Thus, 150 integrals [tex]x_1,x_2,......x_{75}, x_1+24,x_2+24.[/tex] In the i-th to J-th hour, the Wrestler played only 24 match-ups.
5 1/3 divided by 1 1/6
Answer:
4 4/7
Step-by-step explanation:
16/3 ÷ 7/6 is the same as 16/3 × 6/7
this comes out to be 32/7 or 4 4/7
Answer:
10/7
Step-by-step explanation:
use the desmos calculator its pretty helpful