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denis-greek [22]

3 years ago

15

Gemma, a scuba diver, begins a dive on the side of a boat 4 feet above sea level. She descends 28 feet. Which integer represents

Gemma’s position with respect to sea level?

2 answers:

MrRa [10]3 years ago

8 0

Answer:

-24

Step-by-step explanation:

ANEK [815]3 years ago

4 0

-24

Step-by-step explanation:

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Erica knits 18 squares on Monday. She knits 7 more squares each day from Tuesday through Thursday. How may does Erica knit on Fr

Gelneren [198K]

18 ＋7 ＝ 25 ＋7 ＝ 32 ＋7 ＝39 + 7 ＝ 46 ＋ 7 ＝ 53

8 0

4 years ago

3. Use the relationship between 21 and 25 to decide whether the top and middle shelves are

kaheart [24]

Answer:

Angle between 21 and 25 are co interior angle

4 0

3 years ago

The admission fee at a small fair is $1.50 for children and $4.00 for adults. On Saturday, 1000 people entered the fair and $255

miss Akunina [59]

Answer:

Number of children tickets sol= 580

Number of adults tickets sol= 420

Step-by-step explanation:

<u>First, we establish a system of equations:</u>

1.5*x + 4*y= $2,550

x + y = 1,000

x= number of tickets for children sold

y= number of tickets for adults sold

<u>Now, we determine the value of x in one equation and substitute in the other:</u>

x= 1,000 - y

1.5*(1,000 - y) + 4y = 2,550

1,500 - 1.5y + 4y = 2,550

2.5y = 1,050

y= 420

x= 1,000 - 420

x= 580

Number of children tickets sol= 580

Number of adults tickets sol= 420

<u>Prove:</u>

1.5*580 + 4*420= $2,550

580 + 420 = 1,000

5 0

3 years ago

When jumping, a flea rapidly extends its legs, reaching a takeoff speed of 1.0 m/s over a distance of 0.50 mm . part a what is t

pshichka [43]

The flea's acceleration is 1,000 m/s².

<h3>Further explanation</h3>

The problem we overlook this time is about uniformly accelerated motion.

The list of variables to be considered is as follows.

$\boxed{u \ or \ v_i = initial \ velocity}$

$\boxed{u \ or \ v_t \ or \ v_i = terminal \ or \ final \ velocity}$

$\boxed{a = acceleration \ (constant)}$

$\boxed{d = distance \ travelled}$

Given that a take-off speed of 1.0 m/s over a distance of 0.50 mm.

The initial speed was zero from rest. It was asked about flea's acceleration when she extends her legs.

The formula we follow for this problem are as follows:

$\boxed{ \ v^2 = u^2 + 2ad \ }$

a = acceleration (in m/s²)
u = initial velocity = 0 m/s
v = take off speed = 1.0 m/s
d = distance travelled = 0.50 mm

Converted 0.50 mm to meters: $\boxed{0.50 \ mm = 0.50 \times 10^{-3} \ m = 5.0 \times 10^{-4} \ m}$

<u>Steps:</u>

We set the formula so that the acceleration becomes the subject.

$\boxed{ \ v^2 = u^2 + 2ad \ }$

$\boxed{ \ v^2 - u^2 = 2ad \ }$

$\boxed{ \ 2ad = v^2 - u^2 \ }$

$\boxed{ \ a = \frac{v^2 - u^2}{2d} \ }$

Substitute all data into equations.

$\boxed{ \ a = \frac{(1.0)^2 - (0)^2}{2(5.0 \times 10^{-4})} \ }$

$\boxed{ \ a = \frac{1}{10 \times 10^{-4}} \ }$

$\boxed{ \ a = \frac{1}{1 \times 10^{-3}} \ }$

$\boxed{ \ a = 1 \times 10^{3}\ = 1,000 \ m/s^2 \ }$

We get the flea's acceleration, i.e., 1,000 m/s².

<h3>Learn more</h3>

About scientific notation brainly.com/question/7263463
Finding the mass of substance brainly.com/question/4053884
Converting in cubic brainly.com/question/1446243

Keywords: flea, when jumping, rapidly extends its legs, take-off speed, initial velocity, distance, acceleration, uniformly accelerated motion, convert

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Flura [38]

Answer:

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Step-by-step explanation:

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