3 years ago

Need help w this please

Mathematics

1 answer:

rusak2 [61]3 years ago

8 0

Solved using proportions.

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Only 15 and 16 are the one I'm confused on

julia-pushkina [17]

F(2)=8 and f(5v)=25v^2+15v-2

5 0

3 years ago

There is money to send four of nine city council members to a conference in Honolulu. All want to go, so they decide to choose t

FrozenT [24]

Answer:

126

Step-by-step explanation:

There are 9 city council members.

We have to choose 4 of them.

We have to use the combination as :

$^9C_4$

where, 9 is the population size

4 is the sample size.

Therefore, the total number of possible samples without replacement is given as :

$^9C_4=\frac{9!}{4!(9-4)!}$

$=\frac{9!}{5! \ 4!}$

$=\frac{9 \times 8 \times 7 \times 6}{4 \times 3 \times 2 \times 1}$

= 126

7 0

3 years ago

Sylvia walked 1 1/2 miles so far this morning. If she plans to wake a total of 2 1/3 miles, how far does she have to go yet?

Ghella [55]

Answer:

D)- Less than 1 Mile

Step-by-step explanation: as current= 1 1/2 Miles = 3/2 Miles

Total plans= 2 1/3= 7/3 Miles

Difference= (7/3)-(3-2)

= 5/6 Miles

4 0

3 years ago

Read 2 more answers

distance is equal to 1300km av average speed is equal to 20 metre per second time is equal to what ?

AURORKA [14]

20 meter per second= 1200 m/h=1.5km/h
The time is 1300: 1.5 =866.66

3 0

3 years ago

in an isosceles triangle the base angle are equal and the vertex is 80 degree find the measurement of the base angle

Oliga [24]

Answer:

50 each base angle

Base Angle_1 + Base Angle_2 + Vertex = 180

50 + 50 + 80 = 180

180 = 180

Step-by-step explanation:

Sum of interior angles of Triangle is 18- degrees.

2b + vertex = 180

2b + 80 = 180

2b + 80 -80 = 180 - 80

2b = 100

b = 50

7 0

2 years ago