1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ss7ja [257]
2 years ago
9

Hi , anyone can help?​

Mathematics
1 answer:
I am Lyosha [343]2 years ago
8 0

Step-by-step explanation:

AS = Asri's height

AD = Adib's height

IR = Irfan's height

AS = 2x

AD = AS - 6 = 2x - 6

IR = 2 × AS = 2 × 2x = 4x

i)

IR = 4x

ii)

IR - AS = 4x - 2x = 2x

You might be interested in
The tank in Sabina’s car hold 12.7 gallons of gasoline. Currently, the gas tank is 3/4 full. How much gasoline is in the car’s t
Maru [420]

Answer:

9.5 gallons

Step-by-step explanation:

12.7 x .75

multiplying by .75 is the easiest way to get 3/4 of something

4 0
3 years ago
Arthur can throw a ball twice as far as Beatrice. Beatrice can throw a ball one-third as far as Cory. Cory can throw a ball twic
sdas [7]

Answer:

A : D

4 : 3

Step-by-step explanation:

We'll use the first letter of their names as the heading for the ratio.

The first line states:

A : B

2 : 1

The second line states:

B : C

1/3 : 1

The third line states:

C : D

2 : 1

We have three different ratios but we know that they are related to one another so we are going to combine them by equating the common ratio of the different ratios.

Let's look at the ratio with a fraction first.

B : C

1/3 : 1

If we ×3 throughout, this can also be written as:

B : C

1 : 3

Now B in the first and second ratio is the same number and we are able to combine them. We can write them all together like this:

A : B : C

2 : 1 : 3

In the third ratio, C is 2, however in the ratio we have now C is 3. We can make them the same number by ×3 throughout the third ratio and ×2 throughout the ratio we have now.

C : D

2 : 1

6 : 3

A : B : C

2 : 1 : 3

4 : 2 : 6

We can see that our ratio for C is the same number and we can now combine the ratios.

A : B : C : D

4 : 2 : 6 : 3

The question asked for A : D so we can take just the values of A and D.

A : D

4 : 3

I hope this helps :)

3 0
3 years ago
A flat circular plate has the shape of the region x squared plus y squared less than or equals 1x2+y2≤1. the​ plate, including t
vredina [299]

You're looking for the extreme values of x^2+3y^2+13x subject to the constraint x^2+y^2\le1.

The target function has partial derivatives (set equal to 0)

\dfrac{\partial(x^2+3y^2+13x)}{\partial x}=2x+13=0\implies x=-\dfrac{13}2

\dfrac{\partial(x^2+3y^2+13x)}{\partial y}=6y=0\implies y=0

so there is only one critical point at \left(-\dfrac{13}2,0\right). But this point does not fall in the region x^2+y^2\le1. There are no extreme values in the region of interest, so we check the boundary.

Parameterize the boundary of x^2+y^2\le1 by

x=\cos u

y=\sin u

with 0\le u. Then t(x,y) can be considered a function of u alone:

t(x,y)=t(\cos u,\sin u)=T(u)

T(u)=\cos^2u+3\sin^2u+13\cos u

T(u)=3+13\cos u-2\cos^2u

T(u) has critical points where T'(u)=0:

T'(u)=-13\sin u+4\sin u\cos u=\sin u(4\cos u-13)=0

(1)\quad\sin u=0\implies u=0,u=\pi

(2)\quad4\cos u-13=0\implies\cos u=\dfrac{13}4

but |\cos u|\le1 for all u, so this case yields nothing important.

At these critical points, we have temperatures of

T(0)=14

T(\pi)=-12

so the plate is hottest at (1, 0) with a temperature of 14 (degrees?) and coldest at (-1, 0) with a temp of -12.

4 0
3 years ago
Here are the golf scores of 12 members of a college women's golf team in two rounds of tournament play. (A golf score is the num
Nuetrik [128]
Mean = (89 + 90 + 87 + 95 + 86 + 81 + 102 + 105 + 83 + 88 + 91 + 79)/12 = 1,076/12 = 89.67

a.) 95% C.I. = 89.67 + or - 1.96(0.23) = 89.67 + or - 0.4508 = 89.22 to 90.12

b.) 99% C. I = 89.67 + or - 2.575(0.23) = 89.67 + or - 0.5923 = 89.08 to 90.26
8 0
3 years ago
Joe has a bag of candy with 70 pieces of candy in it. He wants to split the candy evenly between himself and his 4 friends. Whic
morpeh [17]

Answer:

C. 70/5

Step-by-step explanation:

Since there are 5 people in total and 70 pieces of candy. To find how much candy each person gets we can do 70/5.

7 0
3 years ago
Other questions:
  • Frank is entering college and is trying to decide between a business major and a liberal arts major. He decides to conduct a ran
    7·2 answers
  • Can you please help me with question 15 16 and 17 thank you
    5·1 answer
  • Will give BRAINLIEST if correct!!!!!!! (if incorrect and/or made random for points, you will be reported)
    15·1 answer
  • What is (3.5 x 10^-5) (3 x 10^-10)
    5·1 answer
  • Frieda and Joanne are laying a 17 meter track for model trains. They completed one stretch that is 7.44 meters long and another
    6·2 answers
  • N is an integer.<br><br> write the values of n such that -15&lt;3n≤6
    5·2 answers
  • Find dy/dx for 4 - xy = y^3
    7·1 answer
  • Jordan is another employee at the same coffee shop. He has worked there longer than Gabe and earns 3 more per hour than Gabe. Ho
    15·1 answer
  • Write 4/7 as a decimal in mixed form​
    8·2 answers
  • Besties, HELP PLZ !!!!!:
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!