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3 years ago

What is the answer to this question

Mathematics

2 answers:

ycow [4]3 years ago

8 0

X = 4 y = - 3

Substitute x for 4 and y for - 3

x² - 4y
 2

4² - 4 *(- 3)
 2

16 - ( - 12 )
2

16 + 12
2

28 = 14
2

Solution: 14

Yuri [45]3 years ago

4 0

$\frac{x^2-4y}{2} = \frac{4^2-4*(-3)}{2} = \frac{16+12}{2} = \frac{28}{2} =14$

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Answer:

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Step-by-step explanation:

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Find an equation for the linear function which has y-intercept -2 and x-intercept 9

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3 years ago

Eric works for an airline, and he needs to calculate the weight of passengers and luggage before takeoff. The number of

igomit [66]

Answer:

Step-by-step explanation:

To complete the question, here are the answer choices:

A) =A1*A2*A3*A4

B) =A1*A2+A3+A1*A4

C) =A1*(A2+A3+A1)*A4

D) =A1*A2+(A3+A1)*A4

We first need to multiply A1 and A2, this will give weight of passengers.

To get weight of luggage, we multiply A1 and A4.

We also need the checked weight to add to that, which is in A3. So then we add up A3 with those 2.

So we will get

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This is given in a different order in Option B. Hence, option B is right.

4 0

3 years ago

Read 2 more answers

A car travels at constant speed for 7 days and covers 1500 miles. What is the speed in centimeters/minute? You may use the (appr

zvonat [6]

Answer:

Speed = 23809.52 cm/min

Step-by-step explanation:

Given : A car travels at constant speed for 7 days and covers 1500 miles.

To find : What is the speed in centimeters/minute

Solution : Formula to find speed is

$\text{Speed}=\frac{\text{Distance}}{\text{Time}}$

Distance traveled = 1500 miles and time taken = 7 days

$\text{Speed}=\frac{\text{1500 miles}}{\text{7 days}}$

Now, we have to convert miles into centimeter and days into minutes.

1 day = 24 hours

1 hour= 60 minute

24 hr= 24×60 minute

1 day = 24×60 minute

7 days = 7×24×60 minute = 10,080 minute

Now, 1 mile = 8/5 km = 1.6 km

1 km= 100000 cm

1.6 km = 1.6 × 100000 cm

1 mile = 1.6 × 100000 cm

1500 miles = 1500×1.6 × 100000 cm = 240,000,000 cm

Put back the values into speed

$\text{Speed}=\frac{\text{1500 miles}}{\text{7 days}}$

$\text{Speed}=\frac{\text{240,000,000 cm}}{\text{10,080 minute}}$

$\text{Speed}=\text{23809.523 cm/minute}$

Therefore, speed = 23809.52 cm/min

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3 years ago

Read 2 more answers

Find EH. * Find DF. *

Mashcka [7]

Answer:

EH= 14

DF= 28

Step-by-step explanation:

8 0

4 years ago