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marta [7]
3 years ago
13

Hamid's soccer game will start at 11:00 A.M., but the players must arrive at the field three-quarters of an hour early to warm u

p. The game must end by 1:15 P.M.
Hamid says he has to be at the field at 9:45 A.M. Is Hamid correct? Explain.

My brother doesn't understand things like this when I explain them to him.
Mathematics
1 answer:
Minchanka [31]3 years ago
4 0
If the game will start at 11:00 A.M., but the players must arrive at the field three-quarters of an hour early to warm up, it refers to 8:45 a.m. Why? If we start to count in 11 backward and start to trace the three-quarters, it shows that 10:45, 9:45, and 8:45 are the three-quarters. So Hamid statement that he has to be at the field at 9:45 A.M is not correct.  
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Find the solution of the system of equations shown on the graph.
svlad2 [7]

Answer:

no solution

Step-by-step explanation:

The solution to a system of equations given graphically is at the point of intersection of the 2 lines.

The 2 lines shown here are parallel and never intersect

Hence the system has no solution

8 0
3 years ago
Could someone explain why the value of x is (-2).​
irina [24]

Answer:

x=-2

Step-by-step explanation:

<u>Given equation</u>:

2x^3+16=0

To <u>solve</u> for the <u>unknown variable x</u>, apply <u>arithmetic operations</u> to <u>isolate the variable</u>.

Subtract 16 from both sides:

\implies 2x^3+16-16=0-16

\implies 2x^3=-16

Divide both sides by 2:

\implies \dfrac{2x^3}{2}=\dfrac{-16}{2}

\implies x^3=-8

Take the cube root of both sides:

\implies \sqrt[3]{x^3}=\sqrt[3]{-8}

\implies x=-2

When taking the <u>cube root of a negative number</u>, the result will be negative.  To understand why, examine what happens when we cube a negative number.

When a number is cubed, it is multiplied by itself, then by itself again.

When multiplying a <u>negative number</u> by another <u>negative number</u>, the result is always positive.

When multiplying a <u>positive number</u> by a <u>negative number</u>, the result is always negative.

Therefore:

\begin{aligned}\implies (-2)^3 &= -2 \cdot -2 \cdot -2\\ & = 4 \cdot -2\\& = -8\end{aligned}

So if -8 is cube rooted, the result is -2.

8 0
2 years ago
Read 2 more answers
Help please! I need it done
dmitriy555 [2]

Step-by-step explanation:

General equation of a line in slope intercept form is given by

y = mx+c

where m is slope and c is y-intercept

Here, y = 5x+9

4 0
3 years ago
A scale model of the statue of liberty is 8 inches tall. If the scale used is 1 in = 30yd. What is the actual height of the stat
zavuch27 [327]

Answer: 250 yd

Step-by-step explanation:

From the question, we are informed that the scale model of the statue of liberty is 8 inches tall and that the scale used is 1 in = 30yd.

Since the scale used was 1 in = 30 yd, the actual height of the statue of liberty will be:

= 8 × 30

= 240 yd

3 0
3 years ago
I don’t understand this. Please help
svlad2 [7]

Answer:

x = 150

Step-by-step explanation:

(n-2)180       (n = the amount of sides)

(12 - 2)180

(10)180

1800

1800/12 = 150

7 0
3 years ago
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