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Harman [31]
3 years ago
5

Jeff walked 8.84 miles at an average speed of 3.4 miles per hour then he walked for an additional 1.6 hours at the same speed ho

w many hours did Jeff walk in all?
Mathematics
1 answer:
Sidana [21]3 years ago
6 0
Jeff walked 4.2 hours
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Find equation of a line through 5 -3 that is parallel to y=1/2x+3
xxTIMURxx [149]

Answer:

The equation of a line through (5 -3) that is parallel to y = 1/2 x+3 is

y = - 2 x  + 7

Step-by-step explanation:

Let us assume the slope of the line whose equation we need to find is m 1.

The line parallel to the needed line  is:   y=1/2x+3

Comparing it with the general form: y = m x + C

we get m 2 = 1/2

Now, as Line 1 is Perpendicular to Line 2.

⇒ m 1 x m 2  = -1

⇒ m 1 x ( 1/2)  = -1

⇒ m 1  = - 2

Also, the point son the line 1 is given as: (x,y)  = (5,-3)

Put the value of point and Slope in y = m x + C to find the value of Y- INTERCEPT.

we get: -3 = (-2) (5) +  C

or, C = -3 + 10 = 7

⇒ C = 7

The general line equation is given as:  y = m x + C

Substituting  the values of C and m, we get:

y = - 2 x  + 7

Hence, the equation of a line through 5 -3 that is parallel to y = 1/2 x+3 is

y = - 2 x  + 7

8 0
3 years ago
1. What number is 35% of 80?<br>​
Stella [2.4K]

Answer: 28

Step-by-step explanation: 80 x 0.35 = 28

6 0
1 year ago
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I need your help broskis
Ilia_Sergeevich [38]

a very fast way to do it:

Trivially 8.8*5>10, so the power of 10 is 6+2+1 = 9.

Therefore, the answer is \boxed{4.4 \text{ x }10^9}

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2 years ago
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I WILL GIVE BRAINLIEST
sammy [17]

Answer:

Tell whether the following equations represent a linear function.

<em><u>10x + 2y = 4--linear </u></em><em><u>equation✓</u></em>

−x² + 3y = 19--quadratic equation

<em><u>6x + 1/2y = 3--linear </u></em><em><u>equation✓</u></em>

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3 years ago
QUESTION 9<br> Write the expression by using exponents.<br> 2.2.2.2.2.2<br> moginio<br> QUESTION 10.
lozanna [386]

Answer:

2^6

Step-by-step explanation:

2*2*2*2*2*2

There are six 2's multiplied together so the base is 2 and the exponent is 6

2^6

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3 years ago
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