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3 years ago

What is the value of x in 8/9x = 4/3

2 answers:

5 0

X= 3/2 because when you divide 4/3 by 8/9 it actually becomes 4/3 times 9/8 then you multiply the top and bottom and simplify

Talja [164]3 years ago

4 0

X= 3/2 you multiply the inverse (9/8) and then you probably know what to do

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How would I determine whether AB is tangent to oc?<br> The o is a circle dot

icang [17]

Answer:

see explanation

Step-by-step explanation:

If AB is a tangent then ∠ ABC = 90° and Δ ABC is right

Using the converse of Pythagoras' identity

If the square of the longest side is equal to the sum of the squares on the other 2 sides.

15 is the longest side and 15² = 225

9² + 12² = 81 + 144 = 225

Thus Δ ABC is a right triangle at B

Thus AB is a tangent to the circle at B

3 0

2 years ago

How do i expand (3x+5)^2

shepuryov [24]

I don't know how you expand it but the answer is 3x + 25 unless that's expanding.

8 0

2 years ago

Read 2 more answers

Describe 58 as a sum of tens and ones

Solnce55 [7]

58 is 5 tens (5*10) and 8 ones (8*1)

4 0

3 years ago

Thanks, & yes how did you get that

soldier1979 [14.2K]

Hello <span>Vmcdowell43

The word Thanks is a shorter way of saying Thank you. Many people use it because it is easier.

The word yes is a simple way to agree with something.

Hope that helps!
-Chris</span>

6 0

2 years ago

Question 1

Tanzania [10]

Answer:

Mortality rate is 0.5 per 1000 habitant

the number of deaths have increased (from 210 to 250)

Step-by-step explanation:

Hello

Mortality rate is the number of deaths in a specific population,usually expressed in units of deaths per 1,000 individuals per year

$Mortality\ rate\ (S)= \frac{(D)}{(P)} *10^{n} \\\\\\\\$

where

S=Mortality rate

D=deaths

P= population

n= is a conversion form ,such as multiplying by 10^{3}=1000, to get mortality rate per 1,000 individuals( we will use n=3)

step 1

asign

S=unknown

D=250

P=500000

n=3, (for each 1000 people)

step 2

Replace

$S=\frac{250}{500000}*1000\\S=\ 0.5\ per\ 1000$

Mortality rate is 0.5 per 1000 habitant

step 3

what if S=0.42

S=0.42(assuming it is 0.42 per 1000,n=3)

D=unknown

P=500000

$(S)= \frac{(D)}{(P)} *10^{n}\\\\isolatin D\\\\S*P=D*10^{n}\\ D=\frac{S*P}{10^{n} } \\\\and\ replacing\\\\D=\frac{(0.42)*(500000)}{10^{3} }\\\\ Deaths=210\\$

the number of deaths have increased (from 210 to 250)

Have a great day

5 0

3 years ago