All categories

1 year ago

Subtract-3x - 8 from 4x² - 7x - 2.

Mathematics

1 answer:

allsm [11]1 year ago

3 0

$( {4x}^{2} - 7x - 2) - (3x - 8) \\ \\ {4x}^{2} - 7x - 2 - 3x + 8 \\ \\ {4x}^{2} - 10x + 4.$

You might be interested in

raj has 16 cups of flour he uses 3 1/2 cups to make bread and 4 3/4 cups to make muffins how many coups of flour does raj have l

DiKsa [7]

Answer:

31/4 cups of flour have left.

Step-by-step explanation:

3 1/2=7/2

4 3/4=19/4

--------------

16-7/2-19/4

64/4-14/4-19/4

31/4

6 0

3 years ago

Read 2 more answers

A fishing boat caught the following

xenn [34]

Wait what?? If you are talking about how much it could have caught it's 0 I guess

7 0

2 years ago

Why are and Iby 4<br>and - 1 zeroes of the polynomial p(x) <br>= 4² +3x-1?

Serggg [28]

Answer:

$- 1 = 16 + 3x - 1 \\ 3x = 16 - 1 + 1 \\ \frac{3x}{3} = \frac{16}{3} \\ x = 5.33$

7 0

3 years ago

A bag had 7 orange rocks , 6 green rock , 1 white rock ,7 black rocks , and 2 yellow you randomly pull a rock from the bag ,keep

daser333 [38]

Answer:

$Probability = \frac{7}{253}$

Step-by-step explanation:

Given

$Orange = 7$

$Green = 6$

$White = 1$

$Black = 7$

$Yellow = 2$

Required

Probability of selecting a yellow then orange rock

From the question, we understand that the probability is that of without replacement.

Since the yellow, is first picked.

We need to determine the probability of picking a yellow rock, first.

$P(Yellow) = \frac{n(Yellow)}{Total}$

$P(Yellow) = \frac{2}{7 + 6 + 1 + 7 + 2}$

$P(Yellow) = \frac{2}{23}$

The rock has reduced by 1;

Next is to determine the probability of picking an orange rock

$P(Orange) = \frac{n(Orange)}{Total - 1}$

$P(Orange) = \frac{7}{7 + 6 + 1 + 7 + 2- 1}$

$P(Orange) = \frac{7}{22}$

The required probability is calculated as thus:

$Probability = P(Yellow) * P(Orange)$

$Probability = \frac{2}{23} * \frac{7}{22}$

$Probability = \frac{14}{506}$

$Probability = \frac{7}{253}$

4 0

3 years ago

If anyone has seen my other post this is my last one, I just really need to bring up my grade and I’ll really appreciate your an

Ganezh [65]

Answer:

55 mph

Step-by-step explanation:

First hour: 40 mph

Second, Third, Fourth hours:

180 miles / 3 hours = 60 mph

Average: 40 (hour 1) + 60 (hour 2) + 60 (hour 3) + 60 (hour 4) = 220 / 4 hours = 55 mph average

I hope this helps!

6 0

3 years ago

Read 2 more answers