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3 years ago

What is 42.8 on its standard form???

Mathematics

2 answers:

Lady_Fox [76]3 years ago

8 0

Answer:

42.8 x 10^0

Step-by-step explanation:

A. Standard Form

Ax + By = C.

A, B, C are integers (positive or negative whole numbers)

No fractions nor decimals in standard form.

Traditionally the "Ax" term is positive.

Musya8 [376]3 years ago

4 0

Answer:

$4.28 \times 10^{1}$

Step-by-step explanation:

$42.8 \times 10^0=42.8$

$4.28 \times 10^{1}=42.8$

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Elena has more roses than Lin. Lin has 8 roses and Elena has x roses. Which expression represents the number of roses Elena has?

yanalaym [24]

Excess greater than or equal to eight

5 0

3 years ago

maurice has 54 fewer comic books than rebecca.they have 130 comic books together .How many comic books are in maurices collectio

eduard

Answer

Rebecca has 76 comic books
Maurice has 54 comic books

Step-by-step

Since there are 54 fewer comics and together they have 130 comics, you should subtract 54 from 130. Once you do that your answer will be 76; and that is how many comics Rebecca has. And 76+54=130 so Maurice has 54 comics

3 0

3 years ago

Luis is packing his bags for his vacation he has 9 unique toy animals but only 5 fit in his bag how many different groups of 5 t

Eva8 [605]

Answer:

126 groups

Step-by-step explanation:

we know that

This is a combination problem, because the order doesn't matter. He has 9 toys and wants to know the number of different combinations of 5 he can take.

The formula for the number of possible combinations of r objects from a set of n objects is given by

$^nC_r=\frac{ {n!}}{r!(n-r)!}$

In this problem we have

$n=9, r=5$

substitute

$^9C_5=\frac{ {9!}}{5!(9-5)!}$

$^9C_5=\frac{ {9!}}{5!(4)!}$

$^9C_5=\frac{ {(9)(8)(7)(6)5!}}{5!(4)!}$

$^9C_5=\frac{ {9)(8)(7)(6)}}{(4*3*2*1)}$

$^9C_5=126$

7 0

3 years ago

Please help me out..........

gayaneshka [121]

Answer:

x = 12

Step-by-step explanation:

The line joining the mid points of the non- parallel sides is parallel to the parallel sides and is equal to half the sum of the parallel sides, hence

5x - 20 = $\frac{1}{2}$ (2x + 6 + 4x + 2)

= $\frac{1}{2}$ (6x + 8) ← distribute, giving

5x - 20 = 3x + 4 ( subtract 3x from both sides )

2x - 20 = 4 ( add 20 to both sides )

2x = 24 ( divide both sides by 2 )

x = 12

6 0

3 years ago

Read 2 more answers

Maggie wants to buy 4 roses , 6 carnations, and 9 tulips . She estimates that she will spend about $14 on these flowers. Do you

Andrew [12]

Well, 4 + 6 + 9 = 19, so $14 is a reasonable answer. If we have $19 assuming that each flower costs $1, then if the estimate is $14, that means that each flower is less than $1, which makes sense. Assuming that all of the flowers cost the same, then each flower would be about 74 cents. This would make sense considering that you are buying tulips, roses, and carnations. I really hope this helps; if not, good luck on your homework.

4 0

3 years ago