Evaluate the expression when x = 5 and z= 7.
5z +x
Simplify your answer as much as possible.

Evaluate The Expression When X = 5 And Z= 7.5z +xSimplify Your Answer As Much As Possible.

Answers

Answer 1
40
Reason 5(7)+(5)=40
Answer 2

Answer:

12

Step-by-step explanation:

We are given the expression:

[tex]\frac{5z+x^2}{x}[/tex]

and asked to evaluate when x= 5 and z=7. Therefore, we must substitute 5 for x and z for 7.

[tex]\frac{(5(7)+(5)^2)}{5}[/tex]

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.

First, evaluate the exponent.

(5)²= 5*5= 25

[tex]\frac{(5(7)+25)}{5}[/tex]

Next, multiply 5 and 7.

5*7=35

[tex]\frac{(35+25)}{5}[/tex]

Next, add 35 and 25.

25+25=60

[tex]\frac{60}{5}[/tex]

Finally, divide 60 by 5.

[tex]12[/tex]

The expression (5z+x²)/x when x=5 and z=7 is 12.


Related Questions

Two airplanes leave the airport. Plane A departs at a 41° angle from the runway, and plane B departs at a 43° from the runway. Which plane was farther away from the airport when it was 5 miles from the ground? Round the solutions to the nearest hundredth.

Plane A / 7.62 mi away

Plane A / 6.63 mi away

Plane B / 6.84 mi away

Plane B / 7.33 mi away

Answers

Answer:

Plane A / 7.62 mi away

Step-by-step explanation:

We have to calculate the distance of each plane from the airport.

In other to do this, we would use the trigonometric function of Sine

sin θ = Opposite/Hypotenuse

For Plane A

Plane A departs at a 41° angle from the runway

sin θ = Opposite/Hypotenuse

θ = 41°

Distance from the ground = Opposite = 5 miles

Hypotenuse = ???

sin 41° = 5 miles/Hypotenuse

sin 41° × Hypotenuse = 5 miles

Hypotenuse = 5 miles/sin 41°

Hypotenuse = 7.6212654335 miles

Approximately to the nearest hundredth ≈ 7.62 miles

For Plane B

Plane B departs at a 43° from the runway

sin θ = Opposite/Hypotenuse

θ = 43°

Distance from the ground = Opposite = 5 miles

Hypotenuse = ???

sin 43° = 5 miles/Hypotenuse

sin 43° × Hypotenuse = 5 miles

Hypotenuse = 5 miles/sin 43°

Hypotenuse = 7.3313959282 miles

Approximately to the nearest hundredth ≈ 7.33 miles

From the above calculation, we can see that Plane A what 7.62 miles away from the airport while Plane b was 7.33 miles away from the airport.

Therefore Plane A was farther away from the airport (7.62 miles away) when it was 5 miles from the ground.

Answer:

Plane A / 7.62 mi away

Step-by-step explanation:

I got it right on the test

A roulette wheel has 38 slots total, 36 of which are numbered 1 through 36, and 2 green slots labeled "0" and "00." For any spin of the wheel, what is the probability of the roulette ball NOT landing on red?

Answers

Answer:

Probability (Roulette ball not landing on red) = 10 / 19

Step-by-step explanation:

Given:

Number of total slots = 38

Number of red slots = 18

Number of black slots = 18

Number of green slots = 2

Find:

Probability (Roulette ball not landing on red)

Computation:

Probability (Roulette ball not landing on red) = 1 - Probability (Roulette ball landing on red)

Probability (Roulette ball not landing on red) = 1 - (18 / 38)

Probability (Roulette ball not landing on red) = 20 / 38

Probability (Roulette ball not landing on red) = 10 / 19

between which two consecutive integers is the negative square root of 5

Answers

Answer:  Between the numbers -2 and -3  

Step-by-step explanation:

The negative square root of 5 will be slightly greater than 2 because the square root of 4 is 2 and 5 is greater than 2. The negative square root of 5  will not be greater than -3 because 3 squared is 9. So it has to be between -2 and -3.

Answer:

-2 and -3

Step-by-step explanation:

So in a simple way we can look at it as what is square root of positive 5.

This is between 2 and 3 but since we are looking for Negative 3, our answer is between -2 and -3

Hope this helps!

what is the product of 45.and 15

Answers

Answer:

675 In other words, we find the product of 45 and 15 by simply calculating 45 times 15 which equals 675.

Answer:

The product of 45 and 15 is 675.

Step-by-step explanation:

You can do it mentally this way:

45 * 15 = 45(10 + 5) = 450 + 225 = 675.

Granola 6 cups rolled oats 2 cups mixed nuts 1 2 cup sesame seeds 1 cup dried cranberriesWhat is the ratio of cups of mixed nuts to the total number of cups of granola? The ratio of cups of mixed nuts to cups of granola is to . 1 cup dried unsweetened coconut 1 2 cup honey

Answers

Answer:

2:11

Step-by-step explanation:

6 cups rolled oats,  2 cups mixed nuts, 1 /2 cup sesame seeds, 1 cup dried cranberries, 1 cup dried unsweetened coconut, 1 /2 cup honey. What is the ratio of cups of mixed nuts to the total number of cups of granola? The ratio of cups of mixed nuts to cups of granola is to .

Solution

Rolled oats= 6 cups

Mixed nuts=2 cups

Sesame seeds=1/2 cup

Cranberries= 1 cup

Dried unsweetened coconuts=1

Honey =1/2 cup

The ingredients listed above are used to make granola

Total cups of granola= Rolled oats + Mixed nuts + Sesame seeds + Cranberries + Dried unsweetened coconuts + Honey

=6 + 2 + 1/2 + 1 + 1 + 1/2

=11 cups

The ratio of cups of mixed nuts to cups of granola= mixed nuts : granola

=2:11

Answer:

2 to 11

Step-by-step explanation:

What is f(6) for the function f(x)=3x-8

Answers

Answer:

10

Step-by-step explanation:

Plug in "6" for each x value.

3(6) - 8

18 - 8

10


Five times the sum of a number and 6 equals 8.

Answers

Answer:

Algebraic expression = 5(x+6)=8

x = -22/5

Step-by-step explanation:

Let the unknown number be x

Translate into Algebraic expression ;

[tex]5(x+6)=8[/tex]

Solve the equation

[tex]5\left(x+6\right)=8\\Divide\: both \:sides \:by \:5\\\frac{5\left(x+6\right)}{5}=\frac{8}{5}\\\\Simplify\\x+6=\frac{8}{5}\\\\\mathrm{Subtract\:}6\mathrm{\:from\:both\:sides}\\x+6-6=\frac{8}{5}-6\\\\\mathrm{Simplify}\\x=-\frac{22}{5}[/tex]

[tex]\rule[225]{225}{2}[/tex]

Answer:

[tex]\Huge \boxed{5(x+6)=8}[/tex]

[tex]\rule[225]{225}{2}[/tex]

Step-by-step explanation:

Let the number be x.

The sum is the result from adding two or more values together.

The sum is multiplied by 5. The result is equal to 8.

[tex]5* (x+6) =8[/tex]

[tex]5(x+6)=8[/tex]

[tex]\rule[225]{225}{2}[/tex]

please help:) which answer represents 4.72 times 10 to the 10th power? A. 472,000,000,000 B. 4,720,000,000 C. 47,200,000,000 D. 472,000,000

Answers

Answer:

C

Step-by-step explanation:

4.72×10^10

4.72×1000000000

move the point(.) ten times to your right. after first two movements

you'll have 472 remaining 8 digits to make

47200000000

In a High School, 60% of the boys play baseball and 24% of the boys play baseball and football. What is the percent of those that play football given that they
also play baseball? Record your answer and fill in the bubbles on the answer document (Enter only a number for your answer.)

Answers

Answer:

i play baseball mark me as brainliest thank my answer and rate me as a 5 because im white

Step-by-step explanation:

Find the distance d(P1, P2) between the points P1 and P2. P1 = (-4, -3); P2 = (2, 2)

Answers

Answer:

[tex]\sqrt{61}[/tex] ≈ 7.81

Step-by-step explanation:

Calculate the distance d using the distance formula

d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]

with (x₁, y₁ ) = P1(- 4, - 3) and (x₂, y₂ ) = P2(2, 2)

d = [tex]\sqrt{(2+4)^2+(2+3)^2}[/tex]

   = [tex]\sqrt{6^2+5^2}[/tex]

   = [tex]\sqrt{36+25}[/tex]

   = [tex]\sqrt{61}[/tex] ≈ 7.81 ( to 2 dec. places )

The distance between P₁ = (-4, -3) and P₂ = (2, 2) is 7.810

Distance between two points:

The distance between two points is the shortest length between two points.

Given P₁ = (-4, -3) and P₂ = (2, 2) are the two points

Formula: Distance between two points  (x₁, y₁) and  (x₂, y₂)

             is [tex]\sqrt({x_{2}-x_{1})^{2} )+({y_{2}-y_{1})^{2} }[/tex]

          Here,  (x₁, y₁) = (-4, -3) and (x₂, y₂) = (2, 2)    

The distance between P₁ and P₂ is

           [tex]\sqrt({2}-(-4_}))^{2} )+({2}-(-3)})^{2}[/tex]          

         =[tex]\sqrt({(2+4)^{2} } +(2+3)}^{2})}[/tex]        

         =  [tex]\sqrt({6^{2} } +5^{2})[/tex]

         =  [tex]\sqrt({36}+25)[/tex]

         =  [tex]\sqrt{61}[/tex]

         = 7.810                  

   

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Worksheet 1.3

Part 1: Write a math expression for each problem (model the problem).

1)

Lumpy drove for h hours at 50 mph. How far did he drive?

Answers

Answer:

  d = 50h

Step-by-step explanation:

  distance = speed × time

Lumpy's distance (d) in miles, after driving h hours at 50 miles per hour, is given by ...

  d = 50h

please help! thank you <33

Answers

Answer:

14

hope this helps!

solve for k k/6 = 4/3

Answers

Answer:

k = 8

Step-by-step explanation:

Given

[tex]\frac{k}{6}[/tex] = [tex]\frac{4}{3}[/tex] ( cross- multiply )

3k = 24 ( divide both sides by 3 )

k = 8

Use a graphing calculator, or another piece of technology, to find the zeros of the function f(x) = -2x3 + 5x2 +1.
What are the approximate zeros to the nearest tenth?
There may be more than one correct answer. Select all correct answers.

Answers

Answer:

x

2.57538512

Step-by-step explanation:

Find the mean distance (○` 3′○)

Answers

Answer:

10,724.3 mi

Step-by-step explanation:

The mean distance travelled daily by Ling is the sum of the distance travelled each day divided by the number of days travelled so far.

Mean distance = [tex] \frac{10,150 + 10,211 + 10,424 + 10,769 + 10,884 + 11,155 + 11,477}{7} [/tex]

Mean distance = [tex] \frac{75,070}{7} = 10,724.3 mi [/tex] (approximated to nearest tenth)

#6) Beth saved a total of $30 per month for her first car. Beth saved

money for 20 months and opened her account with $100. What is the

domain and range of the situation representing the amount of money

Beth saved in respect to time she saved? Write your answer in

interval notation.

D:




R:

Answers

Answer:

1) The domain In interval notation is [0, 20]

2) The range in interval notation is [100, 700]

Step-by-step explanation:

The given parameters are;

The amount Beth saved per month = $30

The number of months Beth saved = 20 months

The amount with which Beth opened her account = $100

Therefore, the amount of money Beth saved with respect to time is given as follows;

Y = $100 + $30 × X

Where;

Y = The amount of money Beth saved

X = The time (number of months) Beth saved

The domain is given as follows;

[tex]\{X | \ 0 \leq X \leq 20 \}[/tex]

The domain in interval notation is [0, 20]

For the range, when X = 0, Y = $100

When X = 20, Y = $100 + $30 × 20 = $700

Therefore, the range is given as follows;

[tex]\{Y | \ 100 \leq Y \leq 700 \}[/tex]

Which the range in interval notation is [100, 700].

PLEASE HURRY Pump it Up gym's daily revenue each can be modeled by R(x) = 5x where x represents the number of customers that visit the gym each day. The gym's daily costs can be modeled by the function C(x) = 2x + 150. Find the profit function P(x) if: P(x) = R(x) - C(x)

Answers

Answer:

P(x) = 3x - 150

Step-by-step explanation:

● P(x) = R(x) - C(x)

We khow that:

● R(x) = 5x

● C(x) = 2x + 150

● P(x) = 5x -(2x+150)

● P(x) = 5x - 2x -150

● P(x) = 3x - 150

The profit function of P(x)  is 3x - 150.

It is required to find profit function of P(x).

What is function?

A function is defined as a relation between a set of inputs having one output each. function is a relationship between inputs where each input is related to exactly one output. Every function has a domain and codomain or range. A function is generally denoted by f(x) where x is the input.

Given :

Daily revenue

R(x) = 5x where x represents the number of customers that visit the gym each day.

C(x) = 2x + 150

P(x) = R(x) - C(x)...(i)

Put the value of R(x) and C(x) in equation ..(i)

P(x) = 5x -(2x+150)

P(x) = 5x - 2x -150

P(x) = 3x - 150

Therefore, the profit function of P(x)  is 3x - 150.

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Tony buys a CD that is priced at $13.59. He has a coupon for $1.85 off. He pays with a $20 bill. Which is the best whole number estimate of how much change he gets? $8 $8.26 $9 $9.26

Answers

Answer:

$8

Step-by-step explanation:

13.59-1.85=11.74

20-11.74=8.26

8.26 rounded Is 8

Answer:

A

Step-by-step explanation:

4. Describe how you can tell by looking at the graph of a function
which variable is the input variable and which is the output variable.

Answers

Answer: The variable in the vertical axis (or y-axis) is the output

The variable in the horizontal axis (or x-axis) is the input.

Step-by-step explanation:

Usually, a graph of a function y = f(x) is represented in an X-Y coordinate axis.

An X-Y coordinate axis is conformed by two perpendicular lines, one vertical (y-axis) and one horizontal (x-axis)

The vertical axis (or the y-axis) is the output, and the horizontal axis (or the x-axis) is the input.

This method will work almost always, as is standardized that the x-axis corresponds to the input, and the y-axis corresponds to the output.

The height of the sail on a boat is 7 feet less than 3 times the length of its base. If the
The area of the sail is 68 square feet, find its height and the length of the base.

Answers

Answer:

Base=8 feet

Height=17 feet

Step-by-step explanation:

Let

Base=x

Height=3x-7

Area=68 square feet

Area of the sail boat=1/2 * base * height

68 = 1/2 * x * (3x-7)

Cross product

68 * 2 =(1) * (x) * (3x-7)

136 = 3x^2 - 7x

3x^2 - 7x - 136=0

Using quadratic formula

x= -b +or- √b^2 - 4ac / 2a

= -(-7) +or- √(-7)^2 - (4)(3)(-136) / 2(3)

= 7 +or- √49 - (-1632) / 6

= 7 +or- √49+1632) / 6

= 7 +or- √1681 / 6

=7 +or- 41 /6

x= 7+41 / 6 or 7-41 / 6

=48/6 or -34/6

=8 or -17/3

Answer:

Step-by-step explanation:

Let

Base=x

Height=3x-7

Area=68 square feet

Area of the sail boat=1/2 * base * height

68 = 1/2 * x * (3x-7)

Cross product

68 * 2 =(1) * (x) * (3x-7)

136 = 3x^2 - 7x

3x^2 - 7x - 136=0

Base of the boat can't be a negative value

Therefore,

Base = x = 8 feet

Height= 3x-7

=3(8)-7

=24-7

=17 feet

What is the perimeter of the given figure?

A.19pie inches
B. 24 + 5pie inches
C. 29pie inches
D. 14 + 5pie inches​

Answers

Answer:

D.

Step-by-step explanation:

The length of the unmarked side of the triangle is found by using Pythagoras:

x sqrt (10^2 - 6^2)

= sqrt 64

= 8.

The length of the curved part = 1/2 * pi * 10 = 5pi

Perimeter = 8 + 6 + 5pi

= 14 + 5pi

Answer:

D.  14 + 5π  inches

Step-by-step explanation:

1.  solve for the side of  a triangle using Pythagorean = [tex]\sqrt{(10^2 - 6^2)}[/tex] = 8 in.

2. circumference of a half circle = πd /2  = π*10 / 2 = 5π in.

3. total perimeter = (8 + 6) + 5π = 14 + 5π

therefore, the answer is D.  14 + 5π  inches

According to Nasa, when the International Space Station (ISS) is at an altitude of 385 kilometers, it travels at about 17,178 miles per hour. After how many hours of travel will the ISS reach a star that is 1.8 lightyears away? Recall that 1 light year = 9.5 ∙ 1012 kilometers and 1 kilometer = 0.62 miles. In your final answer, include all of your calculations.

Answers

Answer:

Supposing the ISS travels at a constant speed, then use the relation,

t=space/velocityt=space/velocity

Then you will obtain,

t=1.65\cdot 10^9\ hourst=1.65⋅109 hours

a child's toy train collection contains 5 engines, 5 red cars, 7 blue cars, and 2 cabooses. What is the probability of randomly selecting pieces to make a three-part train of engine, red car, caboose?

Answers

Answer:

25/2907

Step-by-step explanation:

Probability = Expected outcome/Total outcome of events

If a child's toy train collection contains 5 engines, 5 red cars, 7 blue cars, and 2 cabooses, the total collection will be 5+5+7+2 = 19 total collection

Note that if we are choosing this parts to make part engine, his car parts will no longer be replaced. Hence this is a problem of probability without replacement

If we randomly select pieces to make a three-part train of engine, red car and caboose, this can be chosen in that order and the following ways;

Probability of choosing  an engine = 5/19

Probability of choosing a red car = 5/18 (note that the total collection has reduced by 1 since we didn't replace the engine)

Probability of choosing  a carboose= 2/17 (the car chosen was not replaced as well)

Therefore the probability of randomly selecting pieces to make a three-part train of engine, red car, caboose is the product of the three probability calculated above i.e 5/19 * 5/18 * 2/17 = 50/5814

= 25/2907

I am really confused​

Answers

Answer:

GHC 33.50

Step-by-step explanation:

Pens: 6.50*.15=.975

.975*20=19.50

Pencils: 4.00*.10=.40

.40*35=14

Total=19.50+14=

33.50

A thread is wound 200 times round a reel of diameter 5cm. Use the value 3 for pie to find the approximate length of the thread in metres.

Answers

Answer:

L = 30 m

Step-by-step explanation:

lets make it simple and accurate

given

reel dia = 5 cm = 0.05 m

200 times round the reel

π = 3

reel O circumference = π d

Length of thread = Number of times round the reel x circumference

therefore,

L = 200 x (3 * 0.05)

L = 30 m

The approximate length of the thread wound around the reel is 30 meters.

Here, we have,

To find the approximate length of the thread wound around the reel, we can use the formula for the circumference of a circle.

Circumference = π * diameter

Given that

the diameter of the reel is 5 cm and we are using the value 3 for π, we can calculate the circumference:

Circumference = 3 * 5 cm

Circumference = 15 cm

Now, since the thread is wound 200 times around the reel, we need to calculate the total length of the thread:

Total length of thread = Circumference * Number of times wound

Total length of thread = 15 cm * 200

Total length of thread = 3000 cm

To convert the length from centimeters to meters, we divide by 100:

Total length of thread in meters = 3000 cm / 100

Total length of thread in meters = 30 meters

Therefore, the approximate length of the thread wound around the reel is 30 meters.

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How many pounds are in 2 tons 1, 920 ounces?
A.4, 240 pounds
B.5,920 pounds
C.4, 120 pounds
D.02, 120 pounds

Answers

Answer:

c. 4,120 pounds

Step-by-step explanation:

2 tons = 4000 pounds

1920 ounces = 120 pounds

The amount in pounds of 2 tons 1, 920 ounces by unit conversion will be 4,120 pounds thus, option (C) is correct.

What is unit conversion?

To convert any unit into another is called a unit conversion.

In order to convert units, we need to care about their dimensions their dimension should not be changed.

It is known that,

1 tone = 2000 pounds

2 tons = 4000 pounds

It is also known that,

1 ounce = 0.0625 pounds

1, 920 ounces = 120 pounds.

Total = 4000 + 120 = 4, 120 pounds

Hence "The amount in pounds of 2 tons 1, 920 ounces by unit conversion will be 4,120 pounds".

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What is the value of the expression below?
72 ÷ 4.5x3+8

Answers

Answer:

56

Step-by-step explanation:

Apply PEMDAS:

[tex]72 / 4.5*3+8\\\\16*3+8\\\\48+8\\\\\boxed{56}[/tex]

Add or subtract.
1.-5+ (-2)

Answers

negative 5 plus negative 2

mathematically ,-5-2=-7

-5+ (-2)
=-5- 2
= -7
NOTE: Negative sign and a positive one gives a negative sign (-)

Work out the value of v when u = 4 and t = 3 v=u+10t

Answers

Answer:

v=u+10t

u=4

t=3

v=4+10*3

v=4+30

v=43

(58-x)-(x)=12 in one variable​

Answers

Answer:

x = 23

Step-by-step explanation:

Step 1: Write out equation

(58 - x) - (x) = 12

Step 2: Distribute negative

58 - x - x = 12

Step 3: Combine like terms

58 - 2x = 12

Step 4: Subtract 58 on both sides

-2x = -46

Step 5: Isolate x (divide both sides by -2)

x = 23

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