All categories

2 years ago

F (x) = -3x + 2x – 5 Whatisf (-1)?

Mathematics

1 answer:

eduard2 years ago

7 0

Answer:

f(-1) = -4

Step-by-step explanation:

f(-1) simply means that what is f(x) when x = -1?

Just plug in -1 for x to find your answer:

f(-1) = -3(-1) + 2(-1) - 5

f(-1) = 3 - 2 - 5

f(-1) = 1 - 5

f(-1) = -4

You might be interested in

The center of the circle is O. Find the measure of angle BDE *

lorasvet [3.4K]

Answer:

90 (angle in a semicircle)

7 0

3 years ago

Read 2 more answers

What is an equation of the line that passes through the points (-5,6) and (7,6)?

Tatiana [17]

The y values are not changing so y = 6 describes the line

3 0

3 years ago

Need help! Does anyone know how to do this type of math? (It's geometry)

mart [117]

Answer:

Step-by-step explanation:

refer the attachment

to solve the question we need to recall one of the most important theorem of circle known as two tangent theorem which states that tangents which meet at the same point are equal that is being said

FA=AI=17
CH=CG=2.5

since $\rm BA=FA+FB$ and it's given that FA and BA are 17 and 29 FB should be

$\rm 29=17+FB$

therefore,

$FB=29-17=\boxed{12}$

once again by two tangent theorem we acquire:

$FB=BH=\boxed{12}$

As BC=BH+CH,BC is

12+2.5
$\boxed{14.5}$

likewise,AD=AI+DI so,

21=17+DI [AD=21(given) and AI=17 (by the theorem)]

thus,

DI=21-17= $\boxed{4}$

By the theorem we obtain:

DI=DG=4

Similarly,DC=DG+CH therefore,

DC=4+2.5= $\boxed{6.5}$

Now finding the Perimeter of ABCD

$P_{\text{ABCD}}=\text{AB+AD+BC+DC}$

substitute what we have and got

$P_{\text{ABCD}}=\text{29+21+14.5+6.5}$

simplify addition:

$P_{\text{ABCD}}=\boxed{71}$

hence,

the Perimeter of ABCD is 71

4 0

2 years ago

There are three consecutive integers. The sum of the first two is 51 more than the third. Find the integers.

Sauron [17]

Answer:

52,53,54

Step-by-step explanation:

x, x+1, x+2

2x+1=x+53

x+1=53

x=52

x+1=53

x+2=54

3 0

2 years ago

Solve i give 28 point

SIZIF [17.4K]

the number is how many years

5 0

2 years ago

F (x) = -3x + 2x – 5 Whatisf (-1)?​

F (x) = -3x + 2x – 5 Whatisf (-1)?