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Aleks04 [339]
2 years ago
5

Let f (x)=x^2+2x-35 enter the x-intercepts of the quadratic function in the boxes __and___

Mathematics
2 answers:
valina [46]2 years ago
4 0
Hello :
<span>the x-intercepts of the quadratic  when : 
</span>x²-2x-35 =0
(x-7)(x+5) =0
x-7=0   or  x+5=0
x=7 or  x= -5
serious [3.7K]2 years ago
3 0

Answer:

The x-intercepts of the quadratic function are -7 and 5.

Step-by-step explanation:

The given function is

f(x)=x^2+2x-35

Equate f(x)=0, to find the x-intercepts of the function.

x^2+2x-35=0

x^2+7x-5x-35=0

x(x+7)-5(x+7)=0

(x+7)(x-5)=0

x+7=0\Rightarrow x=-7

x-5=0\Rightarrow x=5

Therefore the x-intercepts of the quadratic function are -7 and 5.

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A company tests the life of its rechargeable batteries over six months of use. They test how long a battery will last after a fu
jonny [76]

Answer:

18.6 months

Step-by-step explanation:

Given that :

Best fit line from scatterplot :

y=-12.05x +224.26

x = Number of month

y = charge on battery

Number of months a typical battery uses before being dead completely :

When battery is dead completely ; charge =0, y = 0

y = -12.05x + 224.26

0 = - 12.05x + 224.26

12.05x = 224.26

x = 224.26 / 12.05

x = 18.610788

Hence, 18.6 months before battery is completely dead.

4 0
2 years ago
While working at the drugstore, Grace earns $9.83 per hours. How many hours will it take grace to earn $49.15?
RoseWind [281]

Answer:

5

Step-by-step explanation:

all you have to do is divide 49.15 by 9.83.

7 0
2 years ago
I cant tell if i did this wrong
nordsb [41]

Answer:

d = 2*5 = 10

Step-by-step explanation:

7 0
2 years ago
What is the values of x and y
Korvikt [17]

Answer:

If you have given an equation, you see the x and y in it. Just taking second equation and think any common factor between x's variable. With common factor, multiply both and you will find the value of y and put it in any equation, you will find the value of X.

6 0
3 years ago
Read 2 more answers
A museum has 450 visitors each day. If they are open 5 hours, how many people do they see per hour?
lions [1.4K]

Answer: 90 visitors per hour

Explanation: "Per hour" means in 1 hour, so we can rewrite the given statement using fractions as <em>450 visitors/5 hours = __visitors/1 hour</em>.

To find out what goes in the bank, notice that we

have a 1 in the denominator of our second fraction.

So we want to find a fraction that is equivalent

to 450/5 that has a 1 in the denominator.

If we divide the numerator and denominator of 450/5 by 5,

we get the equivalent fraction 90/1 or <em>90 visitors/1 hour</em>.

So now we have <em>90 visitors/1 hour = __visitors/1 hour</em>.

So a 90 must go in the blank.

This means that the museum sees 90 visitors per hour.

3 0
2 years ago
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