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2 years ago

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Mathematics

1 answer:

stellarik [79]2 years ago

6 0

Finding the X-intercept.

1.) Solve for x by substituting 0 in for y.

4x+(0)=5

4x/4+5/4

x=1.25 or 1 and 1/4.

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Here is a list of number 51 38 48 36 39 40 39 47

Angelina_Jolie [31]

Answer:

mode is 39

Step-by-step explanation:

6 0

2 years ago

A gold mine has two elevators, one for equipment and another for the miners. The equipment elevator descends 4 feet per second.

Ad libitum [116K]

Let $d_m,\ d_e$ represent the depth of the miner and equipments elevator, respectively. We know that equipment elevator descends with a velocity of $v_e = 4$ feet per second, and the miners one descends with a velocity of $v_m = 15$ feet per second.

If we start counting time ( $t=0$ ) when the equipment elevator begins to descend, after $t$ seconds its depth will be

$d_e(t) = v_et = 4t$

On the other hand, the miner elevator follows the same rule, but we have to use its velocity, and remember that it starts with a delay of thirty seconds:

$d_m(t) = v_m(t-30) = 15(t - 30)$

Now, we have to wait the 30 seconds of delay, and then another 14 seconds. This means that we want to know the positions of both elevators when $t = 44$ . Let's plug this value into the two equations:

$d_e(44) = 4\cdot 44 = 176$

$d_m(44) = 15(44-30) = 15\cdot 14 = 210$

So, the equipment elevator is 176 feet deep, and the miner elevator is 210 feet deep, and thus this is the deeper one.

7 0

2 years ago

Simplify the expression and combine like terms. 3(x-2)-2(x+1)3(x−2)−2(x+1)

Nady [450]

Answer:

6x^2+7x+4

Step-by-step explanation:

Explanation is in photo

6 0

1 year ago

Find the zeros of the function. Enter the solutions from least to greatest . h(x) = (- 4x - 3)(x - 3) lesser x = greater

icang [17]

9514 1404 393

Answer:

-3/4, 3

Step-by-step explanation:

The zeros are the values of x that make h(x)=0. Those are the values of x that make the factors of h(x) be zero.

-4x -3 = 0 ⇒ x = -3/4

x -3 = 0 ⇒ x = 3

The zeros of the function are -3/4 and 3.

3 0

2 years ago

Which expression is equivalent to (2^5)^-2

irinina [24]

1/1024 is the correct answer. First you had to apply exponent rule, and it gave us, $\frac{1}{(2^5)^2}$ , or $2^5^*^2$ . Then you can also refine, and it gave us, $2^10$ , or $\frac{1}{2^10}$ . And it gave us the answer is $2^1^0=2*2*2*2*2*2*2*2*2*2=1024$ , or 1/1024 is the correct answer. Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie

4 0

2 years ago