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3 years ago

Help please thank you!

Mathematics

2 answers:

Liula [17]3 years ago

7 0

97 rounds up to 100
78 rounds up to 80
100x80= 8,000
estimate=8,000

97x78=7,566
product=7,566

Ivan3 years ago

6 0

Estimate: 97 to 100

Estimate: 78 to 80

80 times 100 = 8000

Real: 97

Real 78

97 times 78 = 7566

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(02.03 MC) The temperature at a mountain base camp was −2 degrees Celsius on Thursday. Friday morning, the temperature was 1 deg

aev [14]

Answer:

The temperature at the base camp Friday evening is - 6 degrees Celsius.

Step-by-step explanation:

To get the temperature at a mountain base camp on Friday evening, we must translate statement into a mathematical form:

(i) The temperature at a moutain base camp was - 2 degress Celsius on Thursday:

$T_{o} = -2\,^{\circ}C$

(ii) Friday morning, the temperature was 1 degree Celsius lower than it was on Thursday:

$\Delta T_{1} = -1\,^{\circ}C$

(iii) Friday evening, the temperature was 3 degrees Celsius lower that it was that morning:

$\Delta T_{2} = -3\,^{\circ}C$

The temperature at the base camp Friday evening is:

$T = T_{o}+\Delta T_{1}+\Delta T_{2}$

$T = -2\,^{\circ}C-1\,^{\circ}C-3\,^{\circ}C$

$T = -6\,^{\circ}C$

The temperature at the base camp Friday evening is - 6 degrees Celsius.

6 0

4 years ago

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Lena [83]

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3 years ago

Justine answered 68 questions correctly on a 80-question test.

cestrela7 [59]

For A the answer is 85% correct. Then 15% incorrect. I got the number correct by taking 68 and dividing by 80. To get the number incorrect I took the 15 other questions (80-68) and did 12 divided by 80 to get the 15% incorrect.

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4 years ago

Solve for a. 36 = 9a

velikii [3]

Answer:

Step-by-step explanation:

9 time 4 = 36

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3 years ago

Read 2 more answers

Thank you for your help. The question is in the screenshot

lapo4ka [179]

Answer:

Hi,

Step-by-step explanation:

Using the pythagorean theorem , let's calculate the apothem of a side:

a²=26²-10²=57=24²

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Area of the base: 20²=400 (ft²)

Total area=1360(ft²)

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2 years ago