3 years ago

Hey can you please help me posted picture of question

1 answer:

7 0

To find x- intercepts
y = 0
(x+4)(x-2)=0
x+4=0 or x-2 = 0
x = -4 or x = 2

And the vertex will be (-1,-9)

The correct option is (B)

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The United States is about the only country that still uses the units feet, miles, and gallons. However, you might see some car

Black_prince [1.1K]

Answer: $4.5 \text{ miles per gallon}$

Step-by-step explanation:

Given : The fuel efficiency of car = 7.6 km per kilogram

We also given that

1 mile = 1.609 km

Then, $\text{1 km}=\dfrac{1}{0.609}\text{ mile}$

1 gallon = 3.785 liters

$\text{1 liter}=\dfrac{1}{3.785}\text{ gallon}$

1 liter of gasoline = 0.729 kg

Then, $\text{1 kg}=\dfrac{1}{0.729}\text{ liter}$

$\Rightarrow\ \text{1 kg}=\dfrac{1}{0.729}\times\dfrac{1}{3.785}\text{gallon}$

Now, the fuel efficiency of car will be :

$7.6\times\dfrac{1}{0.729}\times\dfrac{1}{3.785}\times\dfrac{1}{0.609}\\\\=4.52275317827\approx4.5 \text{ miles per gallon}$

Hence, the car’s fuel efficiency in miles per gallon= 4.5

3 0

3 years ago

. The circumference of Earth’s moon is about 1,091,500,000 cm. Write this number in scientific notation. *

kondaur [170]

1.0915 x 10{9} <----Exponet

7 0

3 years ago

Find the slope of the line below . Enter your answer as a fraction or decimal. Use a slash mark ( / ) as the fraction bar if nec

natali 33 [55]

Answer:

1/5

Step-by-step explanation:

We can find the slope of a line given two points by using the following

m = ( y2-y1)/(x2-x1)

= ( 3-0)/(7 - -8)

= ( 3-0)/(7+8)

= 3/15

= 1/5

7 0

3 years ago

Read 2 more answers

The temperature was x° F. It increased by 24°F and is now 6°F. What was the original

Nesterboy [21]

Answer:

The original temperature was -18°F

Step-by-step explanation:

x°F + 24°F = 6°F

or, x°F = 6°F - 24°F

so, x°F = -18°F

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2 years ago

What must be added to 70 so it will divide exactly into five groups of 16

natulia [17]

Answer:

Step-by-step explanation:

$x+70=16(5)\\\\x+70=80\\\\x=10$

Therefore, the number is 10

5 0

2 years ago