The value of the expression 2x² + x(100- 15 x) when x = 5 is X

a 119
b 129
c 135
d 145​

Answers

Answer 1

[tex]\text{x}=5\\\\2\text{x}^2+\text{x}(100-15\text{x})=2\cdot5^2+5\cdot(100-15\cdot5)=\\\\=2\cdot25+5\cdot(100-75)=50+5\cdot25=\\\\=50+125=\boxed{175}[/tex]

Answer 2
Answer :

[tex] \boxed{ \boxed{ \mathrm{ \: \: \: \: \: \: \: \: \: 175 \: \: \: \: \: \: \: \: \: }}}[/tex]

Solution :

Plugging the value of x as 5 in the given expression we get,

[tex] \hookrightarrow \: 2 {x}^{2} +x (100 - 15x)[/tex]

[tex] \hookrightarrow \: 2(5) {}^{2} + 5(100 - (15 \times 5))[/tex]

[tex] \hookrightarrow \: (2 \times 25) + 5(100 - 75)[/tex]

[tex] \hookrightarrow \: 50 + 5(25)[/tex]

[tex] \hookrightarrow \: 50 + 125[/tex]

[tex] \hookrightarrow \: 175[/tex]


Related Questions

Determine the value of x
A. 13.95
B. 15
C. 4.375
D. 4.59

Answers

Answer:

A. 13.95

Step-by-step explanation:

By using the sine rule:

is 6.224398 rational or irrational?

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Answer:

Technically, it's rational because it is definite and has an end

Step-by-step explanation:

write a equation for the nth term: 20, 13, 6, -1, -8

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Step-by-step explanation:

t-7

is the equation....

When Melissa was 8 years old, her mother was 32 Now, Melissa's mother is three times as old as Melissa. How old is Melissa now?​

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Answer:

24

Step-by-step explanation:

Answer:

I think 96

Step-by-step explanation:

???????????????



I’m stuck on this question if someone could help me I would highly appreciate:)

Answers

Answer:

8 is the answer...

Hope it helps

Answer:

AB = 8

Step-by-step explanation:

Given B is the midpoint of AC , then

AB = AC , that is

7x - 6 = 12 - 2x ( add 2x to both sides )

9x - 6 = 12 ( add 6 to both sides )

9x = 18 ( divide both sides by 9 )

x = 2

Then

AB = 7x - 6 = 7(2) - 6 = 14 - 6 = 8

The sum of three consecutive integers is 147. Find the integers.
The integers are
(Use a comma to separate answers.)

(Answer quickly)

Answers

First, let's declare our variables.

x = variable 1

x + 1 = variable 2

x + 2 = variable 3

Now, let's create our expression.

x + x+1 + x+2 = 147

Let's add like terms

3x + 3 = 147

Subtract 3 from both sides

3x = 144

Divide both sides by 3

x = 48

x + 1 = 48 + 1 = 49

x + 2 = 48 + 2 = 50

My digits are consecutive numbers.
The sum of my digits is 15.
I am an even number.
My hundreds digit is less than my tens digit.

Answers

Answer:

456 is the number you are looking for.

Step-by-step explanation:

Consecutive numbers are numbers which continuously follow each other in the order from smallest to largest.

Have a nice day!

The sum of two-fifths of y and one-sixth of h, minus 2

Answers

hi <3

i'm assuming you want the expression written out

it would be:

(2/5y + 1/6h) - 2

hope this helps :)

Evaluate the expression when y=-4.
y²-7y+2

Answers

Answer:

Here is your answer

Hope it helps

What is 2x+y=8 in a linear equation

Answers

Answer: y = -2x + 8

Step-by-step explanation: Subtract 2x from both sides to get (y) by itself. 2x is the slope and 8 is the y-intercept. Brainliest please?

Subtract -1 3/5 - ( -2 7/8) Enter your answer as a simplified fraction by filling in the boxes

Answers

The answer is 51/40=1 and 11/40

The simplified fraction of the subtraction -1 3/5 - (-2 7/8) is 51/40.

To subtract -1 3/5 from -2 7/8, we first need to find a common denominator for the fractions.

The common denominator for 5 and 8 is 40.

Converting the mixed numbers to improper fractions:

-1 3/5 = -8/5

-2 7/8 = -23/8

Now,

-8/5 - (-23/8)

To simplify,

-8/5 + 23/8

Now, we can rewrite the fractions with the common denominator:

(-8/5) × (8/8) + (23/8) × (5/5)

Simplifying:

-64/40 + 115/40  = 51/40

Therefore, the simplified fraction of -1 3/5 - (-2 7/8) is 51/40.

Learn more about fraction;

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#SPJ3

Combine Like Terms −5+2xy+3y 2 +y 2

Answers

Answer:

-5 + 2xy + 4y 2. hope this helps

Step-by-step explanation:

- Zombie

Answer:

2xy+4y^{2} -5

Step-by-step explanation:

Step 1: ((2xy - 5) +  3y2) +  y2

Step 2:  Factorize 2xy + 4y2 - 5

<may i have brainliest please>

Evaluate
8y + 12 -22 when y=4 and z=2

Answers

Answer:

22

Step-by-step explanation:

8y + 12 -22

8(4) + 12 - 22

32 + 12 - 22

44 - 22

22

Answer:

22

Step-by-step explanation:

[48-(19+3)/11]-[36/(9-3)]

Answers

Answer:

40

Step-by-step explanation:

Using PEMDAS, we get:

[48 - (19 + 3) ÷ 11] - [36 ÷ (9 - 3)] =

[48 - 22 ÷ 11] - [36 ÷ 6] =

[48 - 2] - [36 ÷ 6] =

46 - 6 =

40

Remmy establishes a loan for an $8000 vacation package to Transylvania. The vacation company charges 5.5% simple interest. Remy plans to pay back the loan over 1.5 years.

How much interest will Remmy pay?

A) $660

B) $600

C) $390

D) $400

Answers

the correct answer is $660

Trying to solve this probelm i keep getting -10 -2(4x+4)-3x-2=34

Answers

Answer:

x= -4

Step-by-step explanation:

−2(4x+4)−3x−2=34

(−2)(4x)+(−2)(4)+−3x+−2=34(Distribute)

−8x+−8+−3x+−2=34

(−8x+−3x)+(−8+−2)=34(Combine Like Terms)

−11x+−10=34

−11x−10=34

−11x−10+10=34+10

−11x=44

−11x /−11  =  44 /−11

x=−4

Find the value of x if PQ = QR.

Answers

Answer:

11

Step-by-step explanation:

if pq = qr, x+1 = 11+1=12

thus x = 1

Write an addition equation or a subtraction equation (your choice!)

Answers

Answer:

4-4=1

Step-by-step explanation:

Why can’t one of the names be PNM, or MPN for the plane? But MNP can? What’s the difference, and why?

Answers

The names PNM and MPN are perfectly valid. The order of the letters doesn't matter. In fact, there are 6 ways to name this plane if we just use the 3 letters. If we include "plane Z", then there are 7 total ways to name the plane.

For some reason, your teacher wants P to be the third letter as s/he mentioned MNP and NMP. But again, the order doesn't matter.

Please help! I’ll give brainliest also! Thank you!

Answers

9514 1404 393

Answer:

  The principal was right. The numbers don't add up.

Step-by-step explanation:

Based on the categorization, the total number of students polled is ...

  290 +300 +270 -80 -70 -60 -2(50) = 550

The number reportedly polled is 500, so the numbers given are inconsistent.

____

Here's how we understand the categorization.

  N(laptop) = N(all three) +N(laptop & tablet) +N(laptop & desktop) +N(laptop only)

  N(tablet) = N(all three) +N(laptop & tablet) +N(desktop & tablet) +N(tablet only)

  N(desktop) = N(all three) +N(laptop & desktop) +N(desktop & tablet) +N(desktop only)

Then the sum N(laptop) +N(tablet) +N(desktop) is ...

  N(L) +N(T) +N(D) = 3N(ltd) +2N(lt) +2N(ld) +2N(td) +N(l) +N(t) +N(d)

where N(L) = number owning a laptop, and N(l) = number owning a laptop only.

If the area of the blue square is 25 in2 and the area of the green square is 15 points
169 in2, what is the area of the yellow square?

1.) 12 in2
2.) 144 in2
3.)194 in 2
4.) 13.9 in2

Answers

Answer:

144 in²

Step-by-step explanation:

8/26 - Equation Review
Which is the solution that makes the equation - 8x = true?

Answers

Answer:

-3/16 makes the equation true

Answer:

-3/16

Step-by-step explanation:

Hope it helps you!

f(x) = x² + 3x – 4
find the difference quotient hurry!!!

Answers

Answer:

2x + h + 3

Step-by-step explanation:

2x + h + 3

The diagonal braces in a fire tower are 20ft long and span a horizontal distance of 12ft. How high does each brace reach​ vertically?

Answers

Answer:

The vertical span or the height which the brace will reach vertically is 16 ft.

Step-by-step explanation:

The diagonal braces in a fire tower will form a right triangle with the horizontal span and height which it will reach vertically.

It is given that,

the length of the brace is [tex]l=20\rm{ft}[/tex]

the horizontal span of the brace is [tex]b=12\rm{ft}[/tex]

Let the height which the brace will reach is [tex]h[/tex].

Now, the brace length will be the hypotenuse of the right triangle and horizontal and vertical span (height) will be the other two sides of the triangle.

So, by using Pythagoras theorem, the vertical span h of the braces will be,

[tex]h^{2}+b^{2}=l^{2}\\h^{2}+12^{2}=20^{2}\\h^{2}=256\\h=16\rm{ft}[/tex]

Therefore, the vertical span or the height which the brace will reach vertically is 16 ft.

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Jenna bought a gallon of milk at the store for $3.58. About how much change did she receive from a $20 bill?​

Answers

Hi! I'm happy to help!

When Jenna bought the milk, it deducted (subtracted) $3.58 from her $20. So, let's subtract that here:

20.00

- 3.58

We have to borrow:

19.9(10)

- 3.58

10-8=2

19.9(10)

- 3.58

    .  2

9-5=4

19.9(10)

- 3.58

    .42

9-3=6

19.9(10)

- 3.58

    6.42

and 1-0=1

19.9(10)

- 3.58

$16.42

So, Jenna would receive $16.42 in change for her $20 bill.

I hope this was helpful, keep learning!

Which of the following is an arithmetic sequence?

Answers

Answer:

please mark me brainliest please

The figure shows the depths of a submarine.

Find the vertical difference traveled by the submarine

Find the mean hourly vertical distance traveled by the submarine

Answers

Answers:

Vertical distance traveled = 410.7 feet

Mean hourly vertical distance = 136.9 feet per hour

=============================================================

Explanation:

We'll subtract the positive versions of the two numbers (large - small) to get

725.6 - 314.9 = 410.7

This tells us that the distance between those depth markers is 410.7 feet

In other words, the submarine has risen 410.7 feet in vertical distance over those 3 hours.

The mean hourly distance, aka the speed, is

speed = distance/time

speed = (410.7 feet)/(3 hours)

speed = (410.7/3) feet per hour

speed = 136.9 feet per hour

This is another way of saying "each hour, the submarine goes up by exactly 136.9 feet".

Need with help this question anyone takers

Answers

Answer:

1) domain = { 0,1,2,8}

range = { 3,4,5,7}

2)

a. function because each element of set A is associated with unique element of set B

b. function because each element of set A is associated with unique element of set B

c. not function because same elements are repetated

Answer:

1. Domain: {2,1,0,8}

Range: {5,3,7,4}

2. A

Step-by-step explanation:

Given the graph of the polynomial function

Answers

Step-by-step explanation:

according to the graph, the correct answer is:

possitive : (-1, 2) and (6, oo)

negative : (-oo, -1) and (2, 6)

Is this Valid, or false?
5 less than is the difference of twice k and 12 when k equals 4.

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The answer is valid.
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