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3 years ago

What operation does not require you to line up the decimals in order to solve a problem

Mathematics

1 answer:

Alex73 [517]3 years ago

3 0

Decimal points must be aligned with performing addition or subtraction.

The arithmetic operation that does <em>not</em> require decimal points be aligned is multiplication.

_____

For multiplication, you only need to know the number of digits to the right of the decimal point(s).

For long division, it is usually convenient to convert the divisor to an integer and adjust the decimal point of the dividend accordingly. Alternatively, it is necessary to know the number of digits in each number that are to the left of the decimal point.

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H(x) = 2x^2 =4; Find h(-10)

bogdanovich [222]

For this case we have the following function:

$h (x) = 2x ^ 2 + 4$

We must find the value of the function when x = -10

So, replacing we have:

$h (-10) = 2 (-10) ^ 2 + 4\\h (-10) = 2 (100) +4\\h (-10) = 200 + 4\\h (-10) = 204$

Thus, the value of the function is 204 when x = -10

Answer:

$h (-10) = 204$

3 0

3 years ago

Casey has a litter of 5 puppies and 3 of them are gray. At this rate, how many puppies would be gray in a litter of 30 puppies?

deff fn [24]

Answer:

18 gray puppies

Step-by-step explanation:

Think of this as finding equivalent fractions/ratios. 3/5 puppies are gray. what over 30 puppies would be gray? to find 3/5=?/30, you multiply the numerator and denominator by 6. 3 times 6 is 18.

6 0

3 years ago

Translate: Six more than the product of two numbers.

RoseWind [281]

Answer:

You write it like this:

6 + 8 n.

Step-by-step explanation:

You can translate the sentence in English into math. "The product of" means multiplying two numbers, and "6 more than" means adding 6:

hope this helps :)

6 0

3 years ago

Read 2 more answers

First to answer correctly will be marked brainliest 40 points as well

skelet666 [1.2K]

Answer:

see explanation↓

Step-by-step explanation:

(a)

$(3x+2)-(x+5)=3x+2-x-5$

$(3x+2)-(x+5)=2x-3$

ANSWER: Linear binomial

(b)

$(3x+8)+(4x^{2}-x)=3x+8+4x^{2}-x$

$(3x+8)+(4x^{2}-x)=4x^{2} +2x+8$

ANSWER: Quadratic trinomial

(c)

$(x^{2}+7x)-(x^{2}+5)=x^{2}+7x-x^{2}-5$

$(x^2+7x)-(x^2+5)=7x-5$

ANSWER: Linear binomial

(d)

$(2x+8)+(3x^2-2)=2x+8+3x^2-2$

$(2x+8)+(3x^2-2)=3x^2+2x+6$

ANSWER: Quadratic trinomial

(e)

$(x^2+5x-2)+(8-5x)=x^2+5x-2+8-5x$

$(x^2+5x-2)+(8-5x)=x^2+6$

ANSWER: Quadratic binomial

7 0

2 years ago

The ticket price for an ice hockey match used to cost ?19.60. The price has now increased by 12.5%. How much will 2 tickets cost

JulijaS [17]

ANSWER: $44.10

EXPLANATION: The actual cost for an ice hockey match is $19.60. Now, if the price of the ticket increases by 12.5%, the cost of each ticket will increase by $2.45.

$19.6 x 12.5% = $2.45

So, the final price of a single ticket will be $22.05

$19.6 + $2.45 = $22.05

Hence, the cost of two tickets after the increase will be $44.10

$22.05 x 2 = $44.10

6 0

3 years ago