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3 years ago

I need help with this one.

1 answer:

8 0

Words per time=125/5
so words other is 500
$\frac{125}{5}= \frac{500}{x}$ or $\frac{5}{125}= \frac{x}{500}$

D is answer

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I need help it’s due soon and i need help please also i solved one but i need three solved thanksssss

mel-nik [20]

Answer:

6) b = -13.55

8) p = -1

9) x = 7

4 0

3 years ago

What's the negative reciprocal of 5? Question 12 options: A) 1∕5 B) –5 C) –1∕5 D) 5

levacccp [35]

Answer:

$\huge\boxed{C)\ -\dfrac{1}{5}}$

Step-by-step explanation:

The reciprocal of 5: $\dfrac{1}{5}$

The negative reciprocal of 5: $-\dfrac{1}{5}$

7 0

3 years ago

seven times a number is twelve more than three times the number. write an equation, this is urgent! pls hurry up!

egoroff_w [7]

Answer:

n=3

Step-by-step explanation:

7n=12+3n

7 0

3 years ago

Read 2 more answers

Please help! Thanks in advance.

alukav5142 [94]

In this problem, we need to plug in the given x values for $f(x)=0$ and find a and b.

When we plug in 1, we get: $2 \times {1}^{4} - 5 \times {1}^{3} - 14 \times {1}^{2} + a \times 1 + b = 0$

Simplify:
$2 - 5 - 14 + a + b = 0$
$- 17 + a + b = 0$
$a + b = 17$

We got our first statement about the values of the variables. If we find one more we can find those 2 variables.

We have another given root: 4.

Plug it in:
$2 \times {4}^{4} - 5 \times {4}^{3} - 14 \times {4}^{2} + a \times 4 + b = 0$
$512 - 320 - 224 + 4a + b = 0$
$- 32 + 4a + b = 0$
$4a + b = 32$

Now we have our second one. We can combine them:
$a + b = 17 \\ 4a + b = 32$

I use elimination method which is easier here.

Multiply the top equation by -1: $- a - b = - 17 \\ 4a + b = 32$

Add them up:
$3a = 15$

Simplify:
$a = 5$

Now we have a, we can plug in one of those equations to find b:
$5 + b = 17$
$b = 17 - 5$
$b = 12$

So, the answers are $a=5$ and $b=12$ .

6 0

4 years ago

The temperature was 8°C then the temperature feel 9°C what was the temperature after it fell?

Vladimir79 [104]

Answer:

-1°C

Step-by-step explanation:

8°C - 9°C = -1°C

Hope it helps

4 0

4 years ago