3 years ago

Which number represents a temperature below zero? –4° F 0° F 4° F 6° F

Mathematics

2 answers:

makkiz [27]3 years ago

8 0

The anwser is the first one you put , -4 is below zero

lidiya [134]3 years ago

6 0

-4 degrees Fahreheit

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viva [34]

Answer and work is shown in picture :)

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6 0

2 years ago

The Johnson twins were born nine years after their older sister. This year, the product of the three siblings ages is exactly 18

KATRIN_1 [288]

Answer: The age of the twins is 10 years.

Step-by-step explanation:

Suppose the age of older sister be x

Let the age of twins sister be x-9, as they are born after 9 years.

Product of their ages be

$x(x-9)(x-9)\\\\=x(x^2-18x+81)\\\\=x^3-18x^2+81x$

Sum of their ages will be

$x+x-9+x-9\\\\=3x-18$

According to question,

$1861+3x-18=x^3-18x^2+81x\\\\x^3-18x^2+81x-3x+18-1861=0\\\\x^3-18x^2+78x-1843=0\\\\x=19$

So, Age of older sister will be 19 years.

Age of the twins will be

$19-9=10\ years$

Hence, the age of the twins is 10 years.

3 0

3 years ago

Solve for r. -49 = -7r

Nikolay [14]

R=7 because you would do -49 divided by -7

5 0

2 years ago

What is (2x^2+2x-6) times (x-4)?

andreev551 [17]

Answer:

2x^3-6x^2-14x+24

Step-by-step explanation:

7 0

3 years ago

A submarine starts at an elevation of -35 meters compared to sea level. It then makes 3 equal descents of 145 meters each is the

julia-pushkina [17]

Start at -35

three descents of 145m adds to a total descent of 435m

-35-435=-470. the final depth is not greater than 500m

8 0

3 years ago