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Karolina [17]
3 years ago
9

Can someone help me please !!

Mathematics
1 answer:
Anna11 [10]3 years ago
8 0

Answer:

X= -4 and X =2.

Step-by-step explanation:

use the graph .... and if you wanna be sure.

you use the quadratic formular.

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HELP ME WITH MATH HOMEWORK please 11points㋛㋛
Korvikt [17]

Answer:

7. Option B:40 is the correct answer.

8. Option D: y = 40x+75 is the correct answer.

Step-by-step explanation:

Given that:

Charges per hour = $40

Fee charged by repairman = $75

x = number of hours

y = total fee

According to given statement;

y = 40x+75

The standard equation is

y = mx + b

On comparing;

Slope of the line is given by m, therefore

Slope = m = 40

Hence,

7. Option B:40 is the correct answer.

8. Option D: y = 40x+75 is the correct answer.

5 0
3 years ago
Convert this fraction 12/111 into a decimal ?
lesya [120]

Answer:

Simply divide 12 by 111.

12/111 = 0.10810811       (you can round it to 0.11 though)

Hope this helps! :)


5 0
4 years ago
Find the line integral with respect to arc length ∫C(8x+5y)ds, where C is the line segment in the xy-plane with endpoints P=(7,0
puteri [66]

a. Parameterize C by

\vec r(t)=(1-t)(7,0)+t(0,5)=(7-7t,5t)

with 0\le t\le1

b. The integral is to be computed over the range of the parameter t.

c. The integral has a value of

\displaystyle\int_C(8x+5y)\,\mathrm dS=\int_0^1(8x(t)+5y(t))\|\vec r(t)\|\,\mathrm dt

\displaystyle=\int_0^1(8(7-7t)+5(5t))\|(-7,5)\|\,\mathrm dt

\displaystyle=\sqrt{74}\int_0^1(56-31t)\,\mathrm dt=\boxed{81\sqrt{\dfrac{37}2}}

4 0
3 years ago
List all the pairs of integers with a product of 30
Artist 52 [7]
The list of pairs of integers will be created by starting with the factor pairs for 30.

1 x 30
2 x 15
3 x 10 
5 x 6

Then multiply these with negative integers which will result in a positive answer. 

-1 x -30 (This means the opposite of one groups of negative 30, which is posiitve 30).
-2 x -15
-3 x -10
-5 x -6
6 0
3 years ago
Find the y-intercept for the parabola defined by
wolverine [178]

Answer:

12

Step-by-step explanation:

Set x=0

when you do that, you will find the point where y=12 since x^2+8x=0, but adding the 12 moves up the y-component by 12 units

4 0
3 years ago
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