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cupoosta [38]
4 years ago
10

Find the y-intercept for the parabola defined by this equation: y= 4x2 – 7x-2

Mathematics
2 answers:
Marina CMI [18]4 years ago
3 0

Answer:

(0,-2); The y-intercept is y=-2.

Step-by-step explanation:

Recall that the y-intercept is simply (0, y). In other words, we simply need to plug zero into the equation to acquire the y.

Thus:

y=4x^2-7x-2

y=4(0)^2-7(0)-2

y=-2

ivann1987 [24]4 years ago
3 0

Answer:

Step-by-step explanation:

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tom is 2 kg heavier than harry, who is 3 kg heavier than ben. when they add up all their weights, it comes to 65 kg. how many kg
lesya [120]

Answer:

Step-by-step explanation:

Let Harry = x

Tom = harry + 2

Tom = x + 2

Ben + 3 = harry

harry - 3 = ben

x - 3 = ben

Tom + harry + Ben = 65

x + 2 + x + x - 3 = 65

3x - 1 = 65                         Add 1 to both sides

3x = 65 + 1

3x = 66                             Divide by 3

x = 66/3

x = 22

So harry = 22 kg

7 0
3 years ago
Two automobiles start together at the same place and travel along the same route. the first averages 40 miles per hour, the seco
erastovalidia [21]

55 mph minus 40 mph = 15 miles distance for each hour


So 5 hours * 15 = 75 miles difference after 5 hours



3 0
4 years ago
Read 2 more answers
The label on the car's antifreeze container claims to protect the car between −30°C and 130°C. To convert Celsius temperature to
Sveta_85 [38]

we know that

C = \frac{5}{9}(F-32)\\ \\F=\frac{9}{5}C+32

Step 1

<u>Find the inequality</u>

we know that

C = \frac{5}{9}(F-32) --------> equation 1

and

-30\° < C < 130\°

substitute the equation 1 in the inequality

-30\° < \frac{5}{9}(F-32) < 130\°

Step 2

<u>Convert -30\°C to F</u>

substitute in the formula

F=\frac{9}{5}*(-30)+32\\ \\F= -22\°

Step 3

<u>Convert 130\°C to F</u>

substitute in the formula

F=\frac{9}{5}*(130)+32\\ \\F= 266\°

therefore

-22\° < F < 266\°

the answer is the option

B. −30 < 5 over 9 (F − 32) < 130; −22 < F < 266

6 0
3 years ago
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What is the answer for this question
devlian [24]

Answer: A

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5 0
3 years ago
Does anyone have any idea on how to do this? I have notes for it but i just don't understand how to get to the answer.. and if t
Igoryamba

yes, i know how to do it

3 0
3 years ago
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