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3 years ago

Multiplies to -4 Adds to o

Mathematics

1 answer:

nikklg [1K]3 years ago

4 0

-2 times 2 equals -4 and if you add them it equals 0

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An elephant needs to drink at least 40 gallons of water each day. A drinking tank contains 4 gallons of water. The elephant has

kirill115 [55]

Answer:

x≥4

Step-by-step explanation

24+4x≥40. Subtract 24 from both sides to get 4x≥16. Divide both sides by 4 to get x≥4.

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3 years ago

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Triangle ABC is reflected across the x-axis, and then across the y-axis. Which rotation is equivalent to this composition of tra

larisa [96]

Answer:

<em>C) 180 degree rotation </em>

Step-by-step explanation:

While reflecting a point, with coordinates as (x, y), over x axis the new co-ordinates become (x, -y)

⇒(x, y) → (x, -y)

While reflecting a point, with coordinates as (x, y), over y axis the new co-ordinates become (-x, y)

⇒(x, y) → (-x, y)

So, when these two operations are combined, they the rule followed is,

⇒(x, y) → (-x, -y)

We also know that while rotating a point, with coordinates as (x, y), 180° the new co-ordinates become (-x, -y)

⇒(x, y) → (-x, -y)

Therefore, reflecting a point over x axis and then over y axis will yield the same result as rotating a point 180°.

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3 years ago

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Find the missing side lengths

klemol [59]

4 because a 45-45-90 triangle has a side ratio of 1-1-sqrt2 with sqrt2 being the hypotenuse

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3 years ago

A survey questioned 1000 people regarding raising the legal drinking age from 18 to 21. Of the 540 who favored raising the age,

Maslowich

Answer:

If a person selected at random from this group is a man, there is a 31.25% probability that the person favors raising the drinking age.

Step-by-step explanation:

We have these following informations:

There are 1000 people in total.

540 favored raising the age. Of them 390 were female, and 540-390 = 150 were male.

460 were opposed. Of them, 130 were female and 460-130 = 330 were males.

If a person selected at random from this group is a man, what is the probability that the person favors raising the drinking age?

There are 150+330 = 480 males. Of them, 150 favors raising the drinking age.

$P = \frac{150}{480} = 0.3125$

If a person selected at random from this group is a man, there is a 31.25% probability that the person favors raising the drinking age.

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4 years ago

Estimate 5÷10/11 to the nearest whole number

4vir4ik [10]

Answer:

${ \tt{5 \div \frac{10}{11} }} \\ \\ \dashrightarrow \: { \tt{5 \times \frac{11}{10} }} \\ \\ \dashrightarrow \: { \tt{ \frac{55}{10} = 5.5}} \\ \\ \dashrightarrow \: { \boxed{ \tt{ 5 \div \frac{10}{11} \approx \: 6}}}$

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3 years ago

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