3 years ago

Help pls also can you explain how to do this if not it’s okay

Mathematics

1 answer:

salantis [7]3 years ago

8 0

Use proportions , it helps

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What is the equation of 120 x 80 = ?

Sidana [21]

Answer:

9600

Step-by-step explanation:

120 x 80 = 9600

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-3a + 4 ≥ -16<br><br> Solve, and show your work.

storchak [24]

Answer:

a ≤ 20/3

Step-by-step explanation:

Subtract 4 from both sides, obtaining:

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I'm not sure to do this.. Help me please.. Thank you

Paraphin [41]

So our original equations would be..
$2y + 2(y - 4) = p \: (perimeter)$
$y \times (y - 4) = l \: (area)$

(a) perimeter in terms of y
$y = \frac{p + 8}{4}$

(b) area in terms of y
*I'm actually not sure about b.. sorry*

(c) if perimeter = 28, find length
$28 \div 4 = 7$
$7 \times 7 = 49$
$l (area)= 49$

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3 years ago

Which expression is a CUBE ROOT of -2i?

olganol [36]

Remember
∛(ab)=(∛a)(∛b)

also
i¹=i
i²=-1
i³=-i
i⁴=1

so

∛-2i=(∛2)(∛-i)=(∛2)(i)=i∛2

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Y = 3x<br> y = -x + 4<br> write the question in coordinate form

postnew [5]

Answer:

(x,y) (1,3)

Step-by-step explanation:

3x=-x+4

+x +x

4x=4

*divide/simply*

x=1

y=3(1)

y=3✓

y=-1+4

y=3 ✓

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3 years ago