3 years ago

HELP MEE ASAP PLSSSS ♥

Mathematics

1 answer:

Oksanka [162]3 years ago

7 0

Step-by-step explanation:

you add

Hours. Minutes

5. 48

+7. 78

12. 126

Then 126÷60 minutes =2hours 6mins

12hrs+2hrs=14hrs

Answer=14hours 6minutes

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inn [45]

If u need that answer go on google search up math Papa pre algebra calculator.

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3 years ago

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x)

n200080 [17]

Answer:

Option A. 4, 4.5, 5, 5.5

Step-by-step explanation:

Left point: a=x=4

Right point: b=x=6

Range: r=b-a→r=6-4→r=2

Width of each of the four equal intervals: w=2/4→w=0.5

The first left endpoint is x1=a→x1=4

The second left endpoint is x2=x1+w→x2=4+0.5→x2=4.5

The third left endpoint is x3=x2+w→x3=4.5+0.5→x3=5

The fourth left endpoint is x4=x3+w→x4=5+0.5→x4=5.5

Then, the list is: x1, x2, x3, x4 = 4, 4.5, 5, 5.5

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3 years ago

Martin finds a shirt on sale for 20 %off at a department store. The original price was 10$ Martin must also pay 8.5% sales tax.

Serhud [2]

Answer:

Step-by-step explanation:

Sale price = 80% of $10 = 0.80×$10 = $8

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3 years ago

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For a treasure hunt game, 300 balls are hidden. Of the balls that ate hidden, 40% of them are yellow and the rest are white. Sal

Mamont248 [21]

300*.4=120
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there are 120 yellow balls and 180 white balls.

120*.2=24
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Can anybody please help me out with this question I would really appreciate it so much. Please and thank you .

PolarNik [594]

(7x+2)° = (9x–8)°

=>7x –9x = –8–2

=> –2x = –10

=> x = 10/2

=> x = 5

<ADB = (7x+2)°

= 7×5+2

= 37°

<BDC = (9x–8)°

= 9×5–8

= 45 –8

= 37°

<ADC = 37° + 37°

= 74°

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3 years ago