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3 years ago

Help I need help on this

Mathematics

1 answer:

zvonat [6]3 years ago

7 0

Answer:

-4

Step-by-step explanation:

-3-9 +8

-12 + 8

= -4

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The intersection of roads M and N creates a 41.4 degree angle. What are the complimentary and supplementary angles of this inter

astra-53 [7]

Complimentary means 90 degree angle so 90-41.4= the complimentary angle which is 48.6. Supplementary means 180 degrees so 180-41.4= the supplementary angle which is 138.6..

5 0

3 years ago

Francesca and Will want to find out if the triangle formed by connecting the points G, H, and I is a right triangle.

Brrunno [24]

Answer:

Only Francesca is correct

Step-by-step explanation:

I just did it

6 0

3 years ago

A restaurant earns $1073 on Friday and $1108 on Saturday. Write and solve an equation to find the amount xx (in dollars) the res

julia-pushkina [17]

Money earned by restaurant on Friday=$1073

Money earned by restaurant on Saturday=$1108

Let Money earned by restaurant on Sunday=$x

Average=$1000

$\text { average}=\frac { sum of all the observation}{total number of observation}$

Number of observation=3

⇒ 3× 1000=1073+1108+x

⇒3000= 2 181+x

⇒3000-2181=x

⇒x=819

The restaurant needs to earn on Sunday to average $1000 per day over the three-day period=$819

6 0

2 years ago

Read 2 more answers

If f(x) is the total cost, in dollars, of x cupcakes, which of the following statements best describes the meaning of f(5) = 12?

dezoksy [38]

Answer:

See below

Step-by-step explanation:

This a form of the proportional relationship:

f(x) = kx, where f(x) - total cost, k- cost of each item, x - number of items

We have:

f(5) = 12

It means:

Total cost of 5 cupcakes is $12

5 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