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3 years ago

Someone Help me ??plz

Mathematics

1 answer:

nevsk [136]3 years ago

7 0

The reflection across y axis of (x,y) would be (-x,y)

thus the answer is b

Please take the above picture for reference

hope it helps!

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Boxes that are 18 inches tall are being stacked next to boxes that are 24 inches tall.What is the shortest height at which the t

Juli2301 [7.4K]

The shortest height at which the two stacks will be same is 72 inches.

Step-by-step explanation:

Given,

Boxes that are 18 inches tall are being stacked next to boxes that are 24 inches tall.

It means that we will find least common factor of both the boxes;

18 = 2*3*3

24 = 2*2*2*3

LCM = 2*2*2*3*3 = 72

The least common multiple of 18 and 24 is 72, therefore,

The shortest height at which the two stacks will be same is 72 inches.

Keywords: LCM, multiplication

Learn more about LCM at:

#LearnwithBrainly

4 0

4 years ago

What is 2/5 - 1/4 in simplest form

Solnce55 [7]

2/5 - 1/4 would be 3/20, or .15 in decimal form

4 0

3 years ago

Read 2 more answers

Devon babysits x hours a week after school for 5$ an hour, and also has a job as a cashier y hours a week for $10 an hour. He wa

Papessa [141]

Answer:

The inequality expression are $5x + 10y\geq\$70 \ and \ x + y \leq 10 hours$

Step-by-step explanation:

Given:

Number of hours for babysitting for a week = $x \ hours$

Charge for baby sitting = 5$ an hour

Money earned for babysitting in x hours = $5x$

Number of hours for cashier for a week = $y \ hours$

Charge for Cashier = $10 an hour

Money earned for Cashier in y hours = $10y$

He wants to earn at least 70$.

Hence the expression becomes.

$5x + 10y \geq 70 \$$

Also,

He can’t work any more than 10 hours a week

Hence the expression becomes.

$x + y < 10 \ hours$

Inequality equation for the given statements are:

The inequality expression are $5x + 10y\geq\$70 \ and \ x + y \leq 10 hours$

8 0

4 years ago

I need to fill in the blanks for these

Slav-nsk [51]

Answer:

the median for A is 26 and the mean for B is 24

Step-by-step explanation:

since 24 and 28 are both in the middle we need to find the mean of 24 and 28 to find A's median.

18+19+21+25+29+32=144

144 divided by the # of terms 6 gives our mean 24 for B.

7 0

3 years ago

a cone has a volume of 1230.88 units cubed and a diameter of 14 units what is the height of the cone use 3.14 for pi

ANEK [815]

Answer:

h= 24

Step-by-step explanation:

$v = \pi {r}^{2} \frac{h}{3}$

$r = \frac{d}{2}$

$r = \frac{14}{2}$

r= 7

1230.88=3.14×7^2×h/3

1230.88= 153.86h/3

h=1230.88/153.86

h= 24

7 0

3 years ago