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3 years ago

What is f(5) for the function f(x)=2x+7

Mathematics

2 answers:

denis-greek [22]3 years ago

8 0

Answer:

Solution:

f(5)=2×5+7

=10+7

=17

vitfil [10]3 years ago

4 0

Answer:

$f(5)=17$

Step-by-step explanation:

$f(5)=2(5)+7\\f(5)=10+7\\f(5)=17$

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What is the equation, in slope-intercept form, for the line that passes through the point (2, −3) and is perpendicular to the li

diamong [38]

Answer:

The equation is;

y = (-x-23)/25

Step-by-step explanation:

The equation of a straight line can be given as y = mx + b

where m is the slope and b is the y-intercept

for y = 25x + 4

m is 25

Now, we need the slope of a line perpendicular to this,

If two lines are perpendicular, the result of the product of their slopes is -1

m1 * m2 = -1

25 * m2 = -1

m2 = -1/25

Mathematically, we have the slope in the point slope form as ;

y+3 = -1/25 (x - 2)

y = -x/25 + 2/25

y = -x/25 + 2/25 - 3

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6 0

3 years ago

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White raven [17]

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4 years ago

The equation of the line of best fit of a scatter plot is y = −5x − 2. What is the slope of the equation?

tatiyna

Answer:

-5

Step-by-step explanation:

Because y=Mx=b and m is the slope

4 0

3 years ago

Read 2 more answers

The area of a rectangle is 28square miles. The length is 7 miles.

Masja [62]

Area=length times width
area=28
length=7

28=7 times width
divide both sides by 7
4=width

the width is 4 miles
and perimiter is 22mi

6 0

3 years ago

Erin gets her exercise by running. The graph shows the distances she covers in a given amount of time. How many hours does it ta

soldi70 [24.7K]

The correct answer is c. 2 $\frac{1}{2}$ hours

Explanation:

The graphic shows the relationship between the distance Erin covers by running and the time this requires. Additionally, to know the specific time that takes for Erin to run a specific distance or vice versa it is necessary to observe at which point the two variables intersect in the line of the graph.

According to this, Erin runs 25 miles (y-axis) in 2.5 hours (x-axis), which you can know because in the line shown by the graph the distance 25 miles that is in the middle of 20 and 30 miles intersects with 2.5 hours or the middle between 2 and 3. Additionally, this number can be expressed as 2 and a half hours, 2.5 or even 2 $\frac{1}{2}$ hours because the fraction represents half. This makes option C the answer.

6 0

4 years ago