All categories

2 years ago

(-7x2 - 4x – 1) – (6x² + 4x)

Mathematics

1 answer:

marin [14]2 years ago

3 0

Answer:

Step-by-step explanation:

$-7x^{2} -4x -1 -6x^{2} -4x\\\\-13x^{2} - 8x - 1$

You might be interested in

The waiting time, in minutes, to see a teller at a large bank follows an exponential distribution. If the proportion of all cust

Arada [10]

Answer: 0.00067 minutes

Step-by-step explanation: if the proportion of customers who wait more than 15 minutes is 0.01, then the time interval between each waiting customer 15/0.01 = 1500 minutes.

The distribution that defines this question is that of an exponential.

An exponential distribution is dependent on the fixed time rate at which the event is occurring (λ)

For this question of ours, λ = 1500 minutes.

The mean of an exponential distribution is given as

u = 1/ λ = 1/1500 = 0.00067 minutes.

4 0

2 years ago

Mike was in charge of a special sports day at the Community Center. A company donated 50 boxes of ice cream bars, with 12 bars i

Anna007 [38]

The right answer is Option D.

Step-by-step explanation:

Boxes of ice cream received = 50

Ice-creams in each box = 12

Total ice-cream bars = No. of boxes * Ice cream bars in each box

Total ice-cream bars = $12*50=600$

No. of people who had ice cream bars = 520

Ice-cream bars left = Total ice cream bars - No. of people who had ice cream

Ice cream bars left = $600-520=80$

80 ice cream bars were left.

The right answer is Option D.

Keywords: multiplication, subtraction

Learn more about subtraction at:

#LearnwithBrainly

8 0

2 years ago

Line AB has endpoints A(3,4) and B(-2,8). What is AB to the nearest tenth

Nadya [2.5K]

Answer:

6.4

Step-by-step explanation:

To find the distance you have to do this formula.

$\sqrt{(x2 -x1)^{2}+(y2-y1)^{2}} \\\sqrt{(-2 -3)^{2} + (8-4)^{2}\\} \\\sqrt{(-5)^{2} + (4)^{2}} \\\sqrt{25 + 16} \\\sqrt{41} \\ \\\sqrt{41} = 6.40312\\6.4$

6.4 is the answer rounded to the nearest tenth.

Hope this helps!!

3 0

2 years ago

Cardinal Corporation, a calendar year taxpayer, receives dividend income of $250,000 from a corporation in which it holds a 10%

Nitella [24]

I think the answer is a but I’m not for sure

8 0

2 years ago

Please help nowww!!!

Vaselesa [24]

Answer:

Step-by-step explanation:

6*12=72

12*8=96

10*12=120

8*6*2/2=48

72+48+96+120=336

5 0

3 years ago

Read 2 more answers