Which of the following equations shows direct variation between u and v? Choose all answers that are correct. A. v =1/u + 6 B. v/u = 9 C. 0.5(1/u) = v D. 3.5u = v

Answers

Answer 1

Answer: Direct variation is when U increases V will increase and when U decreases V will decrease. The answer to your question is D. 3.5u = v. I hope that this is the answer that you were looking for and it has helped you.

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If cos Θ = negative 4 over 7, what are the values of sin Θ and tan Θ?

Answers

given cos theta is equal to - 4/ 7 then we can conclude that theta is in the second and third quadrants. In this case, the other leg is equal to square root of (7^2 - 4^2 ) equal to square root of 33. In this case, sin theta can be equal to +- square root of 33 / 7 and tan theta is equal to +-square root of 33 / 4.

The values of sin theta and tan theta are √45/7 and √45/4 respectively

Trigonometry identity

Given the following trigonometry identity

cos Θ = -4/7

This shows that

Adjacent = 4

Hypotenuse = 7

Determine the opposite

x^2 = 7^2 - 4^2
x^2 = 49 - 4
x^2 = 45
x = √45

Determine the value of sin Θ

sin Θ = opp/hyp

sin Θ = √45/7

Determine the value of tanΘ
tanΘ = opp/adj

tanΘ = √45/4

Hene the values of sin theta and tan theta are √45/7 and √45/4 respectively

learn more on triginometry here: brainly.com/question/24349828

#SPJ5

Please, show your work . Thanks

Answers

4.
seems to be a geometric sequence
common ratio is -4
first erm is -2
$a_(n)=-2(-4)^(n-1)$

5. x=-1
remember x^-1=1/x
f(-1)=4(7^-1)=4(1/7)=4/7
f(2)=4(7^2)=4(49)=196

6. remember
(ab)/(cd)=(a/c)(b/d)
also
(x^m)/(x^n)=x^(m-n)
and
(x^m)(x^n)=x^(m+n)

so
$(4.5*10^(3))/(9*10^(7))$ =
( $(4.5)/(9)$ )( $(10^(3))/(10^(7))$ )=
(0.5)( $10^(3-7)$ =
(0.5)(10^-4)=
(5)(10^-1)(10^-4)=
(5)(10^(-1-4)
5*10^-5

4. $a_(n)=-2(-4)^(n-1)$

5. f(-1)=4/7
f(2)196

6. 5 times 10^-5

What is the perimeter of a rhombus-shaped street sign with 35-cm side?

Answers

rhombus has 4 sides htat are equal legnth
if 1 side is 35
all 4 sides are 35
perimiter=legnth around=4 times 35=140
answer is 140cm

SAVE ME. Please Answer my Questions Clevers. Q1. if a counting number is selected at random from a set of whole number less than or equal to 20 find the probability of getting:
A. Prime numbers,
B. Composite numbers,
C. Divisible by three,
D. Square of 2.

Q2. The opposite angle of acyclic quadrilaterals is in the ratio of 2:3. Find the degree measure of each opposite angle?

Q3. what is the solution set of
9x-4<13x-7 (domain, xez) ?

Q4. if three fourth of a number is one tenths, what is the number?

Q5. which one is the equation of the line passing through the origin and having a slope 4?

A. Y= -0.4x
B. Y= 4x
C. Y= -4x
D. Y= 0.4x

Answers

Answer:

See below

Step-by-step explanation:

Q1. if a counting number is selected at random from a set of whole number less than or equal to 20 find the probability of getting:

Counting numbers are Natural numbers: $\mathbb{N}$

Also, we have Whole numbers. Despite not having an official symbol, I usually denote the set as $\mathbb{Z}_(\ge 0)$

Whole numbers less than or equal to 20: $A\leq 20, A \subset \mathbb{Z}_(\ge 0) \n\implies A=\{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20\}$

A. Prime numbers

From the set A, the prime numbers are 2, 3, 5, 7, 11, 13, 17, 19.

Once we have 21 numbers in total and 8 prime numbers, the probability is:

$P=(8)/(21) \approx 40\%$

B. Composite numbers

From the set A, the composite numbers are 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20.

Once we have 21 numbers in total and 11 composite numbers, the probability is:

$P=(11)/(21) \approx 52\%$

C. Divisible by three

From the set A, the numbers divisible by three are 3, 6, 9, 12, 15, 18.

Once we have 21 numbers in total and 6 numbers divisible by three, the probability is:

$P=(6)/(21) \approx 30\%$

D. Square of 2

From the set A, the numbers square of 2 are 0, 1, 4, 9, 16.

$√(0) =0$

$√(1) =1$

$√(4) =2$

$√(9) =3$

$√(16) =4$

Once we have 21 numbers in total and 5 numbers square of 2 , the probability is:

$P=(5)/(21) \approx 24\%$

Q2. The opposite angle of acyclic quadrilaterals is in the ratio of 2:3. Find the degree measure of each opposite angle?

Once they're opposite, they add up to 180º

$2x+3x=180 \implies 5x=180 \implies x=36$

The first angle is 72º

The second angle is 108º

Q3. what is the solution set of 9x-4<13x-7 (domain, x e z) ?

$x \in \mathbb{Z}\n$

$x>(3)/(4)$

$x\in \left((3)/(4),\infty \right)$

Q4. if three fourth of a number is one tenths, what is the number?

$(3)/(4) x =(1)/(10) \implies 3x=(4)/(10) \implies \boxed{x = (2)/(15)}$

Q5. which one is the equation of the line passing through the origin and having a slope 4?

$y=mx+b$

$m: \text{slope}$

$b: \text{y-intercept}$

B. Y= 4x

Approximate radius (Geometry)
Can someone please help me in detail if two spherical
pieces of cookie dough have radii of 3cm and 5cm. The pieces are
combined to form one large spherical piece of dough. What is the approx
radius of the new sphere of dough?

Answers

I hope that there is enough information in this answer:

Sphere Vol = 4/3Pi radius^3

Give the 4/3Pi bit a constant - 'C'
Vol = C x radius^3

V1 = C 3^3 = 27C
V2 = C 5^3 = 125C

New Volume = 27C + 125C = 152C

Aproximate radius = cube Root 152 = Approx 5.3
(5 cubed = 125, 6 cubed = 216)

What’s the answer for this

Answers

To find an area of a square you do Length x width
= 9km

Answer:

A=lw

A=3×3

A=9

Explanation

all sides of a square are the same

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