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3 years ago

I’m taking a test

Mathematics

1 answer:

Elodia [21]3 years ago

5 0

Rip banned account lol

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(-8x) . 3x^2 please help

user100 [1]

Answer: -24x^3
(the dot means multiplying right)

5 0

3 years ago

Read 2 more answers

I NEED HELP now pls pls

just olya [345]

Pythagoras theorem ! (a²+b²=c²)

Q1) AC = √4.8²+3.6²
= √36
= 6cm

Q2) AB= √17.55² - 6.75²
= √262.44
= 16.2cm

Q3) BC= √14² - 6²
= √160
= 12.64911
= 12.6 cm (to 3sf)

7 0

3 years ago

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The table shows the maze-completion times, in seconds, of two sets of mice in an experiment.Which statement is true about the va

Yanka [14]

The value of $Q_{1} , Q_{2} ,$ , and $Q_{3}$ of each data is shown in the diagram below

Group A

Mean = $\frac{41+44+45+48+49+50+52+54+55+58}{10} =49.6$
Median = 49.5
Range = $58-41=17$
Interquartile Range = $Q_{3}- Q_{1} =54.5-44.5=10$

Group B
Mean = $\frac{40+41+43+45+48+52+55+57+60+62}{10}=50.3$
Median = 50
Range = 62-40=22
Interquartile range = 58.5-42 = 16.5

Correct statement: the time in Group B has a greater interquartile range

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4 years ago

Read 2 more answers

Your budget $168 for lunch each month. Each lunch eaten at your workplace cafeteria costs you $7. write a rule to represent the

elena55 [62]

Divide them both it should give you the awnser

4 0

4 years ago

I BEG OF YOU HELPPPP Twice last month, Judy Carter rented a car in Fresno, California, and traveled around the Southwest on bu

sineoko [7]

Answer:

the daily fee =33 dollars

and the mileage charge.=0.35

Step-by-step explanation:

let d: be daily fee and m for mileage

cost of rental =(d*number of days)+ (m*number of mileage)

her first trip: 4d+440m=286

her second trip: 3d+190m=165.5

solve by addition and elimination

4d+440m=286 ⇒ multiply by 3 ⇒12d +1320m=(3)286

3d+190m=165.5⇒ multiply by 4⇒12d+190(4)m=4(165.5)

12d+1320m=858

12d+760m=662

subtract two equation to eliminate d

12d+1320m-12d-760m=858-662

560m=196

m=7/20=0.35 for on mileage

d: 4d+440m=286

4d=286-440(0.35)

d=(286-154)/4 33 dollars

8 0

4 years ago