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2 years ago

Someone help with this

Mathematics

2 answers:

vlada-n [284]2 years ago

8 0

Answer:

-7/8 the first one

Step-by-step explanation:

they're both the same

sertanlavr [38]2 years ago

8 0

-7/8 is the correct answer

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Solve for r. s=2πrh

Butoxors [25]

Answer:

s/2πh =r

Step-by-step explanation:

s=2πrh

Divide both sides by 2πh to isolate r

s/2πh =2πrh /2πh

s/2πh =r

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2 years ago

Help i need help fast

tekilochka [14]

Answer : Vertical .

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2 years ago

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80+90=8+9 add a 0 to the end of your answer

Len [333]

Answer:

The answer is 170

Step-by-step explanation:

Because 8 + 9 = 17, if we multiply all of these values by ten or add a zero to the end of each number, we should get

80 + 90 = 170

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2 years ago

1 7/10 x 2/3 what is the product

Ludmilka [50]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{1 \frac{2}{15}}}}}}$

Step-by-step explanation:

$\sf{1 \frac{7}{10} \times \frac{2}{3} }$

Convert the mixed number into improper fraction

$\longrightarrow{ \sf{ \frac{10 \times 1 + 7}{10} \times \frac{2}{3}}}$

$\longrightarrow{ \sf{ \frac{17}{10} \times \frac{2}{3}}}$

To multiply one fraction by another, multiply the numerators for the numerator, and multiply the denominator for its denominator and reduce the fraction obtained after multiplication into lowest term

$\longrightarrow{ \sf{ \frac{17 \times 2}{10 \times 3}}}$

$\longrightarrow{ \sf{ \frac{34}{30}}}$

$\longrightarrow{ \sf{ \frac{17}{15} }}$

Convert the improper fraction into mixed number

$\longrightarrow{ \sf{1 \frac{2}{15} }}$

Hope I helped!

Best regards! :D

7 0

2 years ago

Xét tính đồng biến nghịch biến của hàm số:<br><br>y=-x^4-2x^2+5

lana66690 [7]

Answer:

x=77

Step-by-step explanation:

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2 years ago