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3 years ago

Fill in blanks to write the function when x=3 h(x)=-4-7, when x=3:h()=

Mathematics

2 answers:

Gemiola [76]3 years ago

7 0

Answer:

h(x)= -4x-7, when x=3

Answer= h(3)= -19

Step-by-step explanation:

Substitute 3 for x in the function and simplify:

h(x) = -4x – 7

h(3) = -4(3) – 7

= -12 – 7

= -19

Veseljchak [2.6K]3 years ago

6 0

Answer:

h(3) = -3

Step-by-step explanation:

h(3) = 4-7

h(3) = -3

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The battery on McKenzies old computer can last 4(1/5) hours. She bought a new computer that has a battery that can last 40% long

Solnce55 [7]

Answer:

$5\frac{22}{25}\ hours$

Step-by-step explanation:

we know that

$4\frac{1}{5}\ hours=\frac{4*5+1}{5}=\frac{21}{5}\ hours$

$100\%+40\%=140\%=\frac{140}{100}$

Let

x ------> new battery life

The equation that represent this situation is

$x=\frac{140}{100} (\frac{21}{5})=\frac{2,940}{500}\ hours$

convert to mixed number

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4 0

3 years ago

What is the solution to the system x-y=-5 and 7x+3y=-75

yan [13]

Answer:

x=-6

y=-11

Step-by-step explanation:

x-y=-5

7x+3y=-75

x=5+y plug that in to the second equation

7(5+y)+3y=-75

35+7y+3y=-75

10y=-75-35

10y=-110

y=-11

plug y into first equation

x+11=5

x=5-11

x=-6

4 0

3 years ago

a sprinter runs 400 meters in 54 seconds.What is the runners average running rate in meters per second?Round to the nearest tent

Novay_Z [31]

You want to find meters per second.
So meters goes over seconds
$400 meters/54 seconds$
Now pull out the calculator.
You should get ≈ $7.4 \frac{m}{s}$ , or 7.4 meters per second

8 0

3 years ago

Which of the following rational functions is graphed below?

Gwar [14]

The graph of the function f(x) = x(x + 5)(x - 2) have x intercepts at x = 0, -5 and 2

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Given the equation:

f(x) = x(x + 5)(x - 2)

x(x + 5)(x - 2) = 0

x = 0, x + 5 = 0, x - 2 = 0

x = 0, -5 and 2

The graph of the function f(x) = x(x + 5)(x - 2) have x intercepts at x = 0, -5 and 2

Find out more on equation at: brainly.com/question/2972832

#SPJ1

4 0

2 years ago

Set up a linear system and solve.

liubo4ka [24]

Answer:

The two integers are 23 and 12

Step-by-step explanation:

Let the two integers be f and g

Let f be the biggest and g the smallest integer

From the first statement, the sum of the two integers is 35 i.e

f + g = 35. (1)

From second statement, we were told that when the smaller integer is subtracted from twice the larger, the result is 34 i.e

2f — g = 34. (2)

Now we'll solve by elimination method as follows:

Add equation (2) and (1) together:

2f — g = 34

+ f + g = 35

3f = 69

Divide both side by the coefficient of f i.e 3

f = 69/3

f = 23

Substituting the value of f into equation(1)

f + g = 35

23 + g = 35

Collect like terms

g = 35 — 23

g = 12

The two integers are 23 and 12

4 0

3 years ago

Fill in blanks to write the function when x=3 h(x)=-4-7, when x=3:​h(__)=__​

Fill in blanks to write the function when x=3 h(x)=-4-7, when x=3:h()=