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SCORPION-xisa [38]
4 years ago
12

Write the expression in standard form 3h-2[1+4h

Mathematics
2 answers:
IRINA_888 [86]4 years ago
8 0

Answer: -5h -2

Step-by-step explanation: to express this in standard form, we will say that:

3h-2(1+4h)

we go by opening the brackets.

then we have;

3h-2-8h

the next thing to do ,is to pull out the like terms

then we have,

3h-8h-2

therefore, our answer will be

-5h -2

divide through by -5

h=-2/5

Or=-0.4

In standard form

-4×10^-1

Black_prince [1.1K]4 years ago
3 0

Answer:

-5h -2

Step-by-step explanation:

3h-2[1+4h]

Distribute

3h -2 -8h

Combine like terms

3h -8h -2

-5h -2

The powers of h go in decreasing order

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Ann [662]

Answer:

<h2>10, 7.5, 5.625, 4.21875, ...</h2><h2>160, 40, 10, 2.5, ...</h2><h2>20, 70, 245, 857.5, ...</h2><h2>5, 5.5, 6.05, 6.655, ...</h2>

Step-by-step explanation:

\text{If}\ a,\ b,\ c,\ d,\ e,\ ...\ \text{is a geometric sequence, then}\ \dfrac{b}{a}=\dfrac{c}{b}=\dfrac{d}{c}=\dfrac{e}{d}=....\\\\\#1\\\\\dfrac{7.5}{10}=0.75\\\dfrac{5.625}{7.5}=0.75\\\dfrac{4.21875}{5.625}=0.75\\\boxed{YES}\\================================\\

\#2\\\\\dfrac{40}{160}=\dfrac{1}{4}\\\dfrac{10}{40}=\dfrac{1}{4}\\\dfrac{2.5}{10}=\dfrac{1}{4}\\\boxed{YES}\\================================\\

\#3\\\\\dfrac{70}{20}=3.5\\\dfrac{245}{70}=3.5\\\dfrac{857.5}{245}=3.5\\\boxed{YES}\\================================\\

\#4\\\\\dfrac{16.5}{13}=\dfrac{165}{130}=\dfrac{33}{26}\\\dfrac{20}{16.5}=\dfrac{200}{165}=\dfrac{40}{33}\neq\dfrac{33}{26}\\\boxed{NO}\\================================\\

\#5\\\\\dfrac{5.5}{5}=1.1\\\dfrac{6.05}{5.5}=1.1\\\dfrac{6.655}{6.05}=1.1\\\boxed{YES}\\================================\\

\#6\\\\\dfrac{17.1}{16}=1.06875\\\dfrac{18.2}{17.1}=1.0643274..\neq1.06875\\\boxed{NO}

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