please help!!!!!!!!!!!!!

7x(4x-5)

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28x^2-35x

Ans : 28x^2-35x

Answer:

28x - 5

Step-by-step explanation:

coeffecients with the same variable can be multiplied added subtracted divided so i multiplied 7 and 4 because they have the same variable which is X so it would be 28x and you can't multiply 7x by 5 because it doesnt have a variable consider multiplying if it has the same variable when it has a variable. so it would just be 28x - 5

Answer:

Since stress is greater than ultimate strength, the wire will break.

Step-by-step explanation:

The titanium wire is experimenting an axial load. Ultimate strength equals [tex]2.20\times 10^{8}\,Pa[/tex]. The wire shall break if and only if stress is at least equal to ultimate strength. The equation for axial stress ([tex]\sigma[/tex]), measured in pascals, in the wire with circular cross-section is:

[tex]\sigma = \frac{4\cdot F}{\pi\cdot D^{2}}[/tex] (1)

Where:

[tex]F[/tex] - Axial force, measured in newtons.

[tex]D[/tex] - Cross-section diameter, measured in meters.

Please notice that axial force is the weight of the man hanging from wire.

If we know that [tex]F = 800\,N[/tex] and [tex]D = 0.002\,m[/tex], then the axial stress experimented by the titanium wire is:

[tex]\sigma = \frac{4\cdot (800\,N)}{\pi\cdot (0.002\,m)^{2}}[/tex]

[tex]\sigma \approx 2.546\times 10^{8}\,Pa[/tex]

Since stress is greater than ultimate strength, the wire will break.

Answer:

375

Step-by-step explanation:

If we say there were a adult tickets sold, we know that there were a + 68 student tickets sold.

a + a + 68 = 2a + 68

818 tickets were sold in total so

2a + 68 = 818

2a = 750

a = 750/2 = 375 adult tickets sold

Answer:

443

Step-by-step explanation:

So, what we basically know is the total number of tickets for adults and students altogether. In order to start this problem itself, it will require a subtraction.

So,

That's gonna be,

818 - 68= 750

For me, personally, I have a method that works for every question similar to this one. The concept is kinda weird ,yeah but it applies to all types of questions like this one.

It is

More than= Sub-add or Subadd

So, it's gonna be

this,

818 - 68= 750

750÷ 2 = 375

Number of tickets for adults will be= 375 + 68= 443

Answer: D. (2,0) and (2,5) have the same x-value by different y-values

In other words, the input x = 2 leads to multiple outputs y = 0 and y = 5 at the same time. A function is where any input leads to exactly one output only (assuming that input is in the domain). So whenever x repeats itself like this is when we don't have a function.

Answer:

Step-by-step explanation:

Amount paid for first 100 watches = (65% of 80) *100

                                                        [tex]=\frac{65}{100}*80*100\\\\= 65*80\\= 5200[/tex]

Amount paid for next 50 watches = (55% of 80) * 50

                                                        [tex]= \frac{55}{100}*80*50\\\\= 55 * 8 * 5\\\\= 2200[/tex]

Remaining watches = 280 -(100+ 55)

                                 = 280 - 155 = 125

Amount paid for 125 watches = (45% of 80) *125

                                                  [tex]= \frac{45}{100}*80*125\\\\= 45 * 20 * 5\\\\= 4500[/tex]

Amount received by the watch maker = 5200 + 2200 + 4500

                                                               = £ 11900

Answer:

The slope of the line is 4.

Step-by-step explanation:

[tex]slope=\frac{y_2-y_1}{x_2-x_1}[/tex] when the points given are [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]

Plug the given points (1,12) and (2,16) into the equation

[tex]slope = \frac{16-12}{2-1}\\slope =\frac{4}{1} \\slope=4[/tex]

I hope this helps!

Answer:

1.44 lbs is from the oats

Step-by-step explanation:

Answer:

27

Step-by-step explanation:

To find out how many people do something OTHER than running, you have to take the total amount of students participating and subtract the number of runners. 45 - 18 = 27.

Answer:

40%

Step-by-step explanation:

18÷45 = 0.4 × 100 = 40%

Answer:

$5.75

Step-by-step explanation:

I hope you get it right!

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

Explanation:

We're told that Dmitri and Adam do not like red. So that must mean that Ken likes red. This immediately leads to choice C as the answer. This is assuming that each boy picks one of the three colors (and no colors can be repeated).

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Extra info:

Answer:

24

Step-by-step explanation:

x * 5 - 17 = 103

x * 5 = 120

x = 24

Answer:

s=24

103+17=120

120÷5=24

making the answer 24

Please mark brainliest

Answer:

-5.3

Step-by-step explanation:

-2.8+(-2.5)=-2.8-2.5=-5.3

Answer:

-5.3

Step-by-step explanation:

Answer:

Step-by-step explanation:

Your answer

303.45 $

Mark it as Brainlist. Follow me for more answer.

Answer:

C

Step-by-step explanation:

In a 45-45-90 triangle, two of the sides are congruent because the angles are congruent. Choice C is the only answer in which the sides are congruent.

Answer:

8ab

Step-by-step explanation:

Answer:

8/9

Step-by-step explanation:

your adding 1/18 each time

Answer:

since triangle AED similar to ACB

CE=19cm mid point bisect it

BD=32Cm mid point bisect it

Step-by-step explanation:

BC=2DE=2×39=78Cm

Answer:

20/29

Step-by-step explanation:

Since 20inches is the opposite side size to the angle. Opposite = 20.

[tex] \cos( \alpha ) = \frac{adj}{hyp} [/tex]

Note: Hypothenus is the longest side of a right angle triangle which is 29inches.

Thus,

[tex] \cos( \alpha ) = \frac{20}{29} [/tex]

Answer:

4 x c = 2,528

c = 632

Step-by-step explanation:

Answer:

The bottom one

Step-by-step explanation:

The question is saying they spent $2528 on 4 laptop computers that each cost the same amount so the equation is 4c=2528 .Divide 2528 by 4 to get 632.

P.S. can I get brainlist please?

Answer:

GCF=1  

Add=13

Multiply=30

Step-by-step explanation:

GCF:

   Factors of Ten= 10, 5, 2, 1

   Factors of Three= 3, 1

   Common factors = 1

Add:

   10+3 = 13

Multiply:

   10x3 = 30

Answer: 9/20

Step-by-step explanation:

[tex]2 \frac{1}{4}=2.25\\\\1 \frac{4}{5}=1.8\\\\2.25-1.8=0.45=\frac{9}{20}[/tex]

Answer:

4.5 miles

Step-by-step explanation:

2 times as far as last week

last week was 2.25 miles

2* 2.25 = 4.5 miles

Answer:

One solution

Step-by-step explanation:

since the graph formed by them has interesting lines, it will just have one solution

Answer:

y = 4x-13

Step-by-step explanation:

The standard equation of the line is y = mx+c

m is the slope

c is the intercept

Given the equation y = 4x+2

The slope m = 4

Substitute m = 4  and the given point into the formula y = mx+c

1 = 4(4)+c

1 = 14+c

c = -13

Get the equation

Recall that y = mx+c

y = 4x + (-13)

y = 4x-13

Hence the required equation is y = 4x-13

Answer:

32

Step-by-step explanation:

The number that has the same value as [tex](4^{-1})(2^3 \div 4^{-2})[/tex] is 32

The numeric expression is given as:

[tex](4^{-1})(2^3 \div 4^{-2})[/tex]

Evaluate the exponents

[tex](4^{-1})(2^3 \div 4^{-2}) = \frac 14 * 8 \div \frac 1{16}[/tex]

Express as products

[tex](4^{-1})(2^3 \div 4^{-2}) = \frac 14 * 8 * 16[/tex]

Evaluate the products

[tex](4^{-1})(2^3 \div 4^{-2}) =32[/tex]

Hence, the number that has the same value as [tex](4^{-1})(2^3 \div 4^{-2})[/tex] is 32

Read more about equivalent expressions at:

https://brainly.com/question/2972832

Answer:

Four possible values of x: 10, 3, 20, 31

Writing it in ascending order : 3, 10, 20, 31, 33

Step-by-step explanation:

Because x is a positive integers it means that x could be any number that goes from zero to infinity.

The possible values of x such that 33/x remains a positive integer in ascending order are 1,3,11 and 33.

An integer is a whole number irrespective of the sign that the integer is all whole numbers that are going from 0 to infinite or 0 to minus infinite.

Integer ; ....-2 , -1 , 0 , 1 , 2 , .....

Given the expression, 33/x

Now positive integers are whole numbers ( 1,2,3,...)

To 33/x be the whole number and x is also a positive integer.

33/1 = 33 (1,3 Positive integer)

33/3 = 11 (3,11 Positive integer)

33/11 = 3 (11,3 Positive integer)

33/33 = 1 (33,1 Positive integer)

Hence "The possible values of x such that 33/x remains a positive integer in ascending order are 1,3,11 and 33".

To learn more about integers,

brainly.com/question/1768254

#SPJ2

Given question is incorrect the correct question follows ;

33 / x is a positive integer. Work out the four possible values of x, writing your values in ascending order.