Can someone please help me!!!

»(4x - 2y)(3x + 5y)

»4x(3x + 5y) + (-2y)(3x + 5y)

»12x² + 15xy - 6xy - 10y²

»12x² + 9xy - 10y²

so, ABC is :

Answer:

we need the figure, where is it

Answer:

A parallelogram is a four sided shape, so this means that the total sum of interior angles is equal to 360 degrees.

It also has two sets of matching angles, therfore if it says one is 155 degrees it must have one more that is also 155 degrees.

This means 2 x 155= 310, 360 - 310 = 50 degrees remaining. This 50 degrees would be shared between the remaining two angles as they must be a matching pair also. 50 / 2=25.

This parallelogram has two angles of 155 and two of 25. Degrees.

Answer:

2x+4 or 2(x+2)

Step-by-step explanation:

I'm not very confident that I can give you a clear explanation while typing, but you can factor the equation which is one way how to do this.

2x^2 + 10x+12 = 2(x^2+5x+6)

                       = 2(x(x+3) + 2(x+3))

                       = 2(x+3)(x+2)

With that answer, you divide it by x+3 and get 2(x+2) or 2x+4

Answer:

It is Right angle triangle.

Also it shows 90 degree angle at E.

I think it will help you.

Answer:

y-intercept mean the line going through

Step-by-step explanation:

it means the line going threw

Answer:

7 1/7

Step-by-step explanation:

24 hours  = 1 day

7 days = 1 week

⇒ number of hours in 1 week = 24 x 7 = 168

⇒ number of weeks in 1200 hrs = 1200 ÷ 168 = 7 1/7

Answer:

the sum of all angles in triangle is equal to 180°

Step-by-step explanation:

1 = 2 = 3 = 4 = 90° (360° / 4)

9 = 180° - 21° - 90° = 69°

10 = 180° - 59° - 90° = 31°

5 = 59°

6 = 21°

7 = 9 = 69°

8 = 10 = 31°

Answer:

{x,y}={-4,-1}

Step-by-step explanation:

Solve by Substitution :

// Solve equation [2] for the variable x

[2] 3x = 4y - 8

[2] x = 4y/3 - 8/3

// Plug this in for variable x in equation [1]

[1] 2•(4y/3-8/3) + 5y = -13

[1] 23y/3 = -23/3

[1] 23y = -23

// Solve equation [1] for the variable y

[1] 23y = - 23

[1] y = - 1

// By now we know this much :

x = 4y/3-8/3

y = -1

// Use the y value to solve for x

x = (4/3)(-1)-8/3 = -4

Solution :

{x,y} = {-4,-1}

Step-by-step explanation:

sin 2b = -.5

2b =-30°

b = -15°

cot ^2(3π/4 +15)

=cot^2(3π/4+ π/12)

=cot ^2(10π/12)

=cot^2(150°)

=2.99

Answer:

-3/5

Step-by-step explanation:

I used the KCF, or keep, change, flip, method for this.

The original problem is -2/5 divided by -2/3

We keep the first fraction - -2/5

change the sign to multiplication

and flip the second fraction - 3/2

so, -2/5 x 3/2

and then check for where we can simplify, we can in this instance:

-1/5 x 3/1

and then multiply across

-3/5

Answer:

Step-by-step explanation:

Sum of interior angles of a triangle is 180°.

Find the missing angle:

[tex]\small\bold\green{[Sum \: of \: interior \: angles \: of \: a \: triangle \: is \: 180°]}[/tex]

Lets , Find the missing angle :

↪ m∠A + m∠B + m∠C = 180°

↪ 33° +102° + m² = 180°

↪ 135° + m∠C = 180°

↪ m∠C = 180° - 135°

↪ m∠C = 45°

Answer:

7.21 units

Step-by-step explanation:

Given points are: (-6, 6) and (-10, 0)

[tex]distance = \sqrt{ {( - 6 + 10)}^{2} + {(6 - 0)}^{2} } \\ \\ = \sqrt{ {(4)}^{2} + {(6)}^{2} } \\ \\ = \sqrt{ 16 + 36 } \\ \\ = \sqrt{ 52 } \\ \\ = 7.21 \: units[/tex]

The equation that represents the linear function is y = 2x.

A linear equation is in the form:

y = mx + b

Where y, x are variables, m is the rate of change and b is the y intercept.

Let us assume that from the table, we get the data with points (0, 0) and (2, 4). Hence:

[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)\\\\y-0=\frac{4-0}{2-0} (x-0)\\\\y=2x[/tex]

The equation that represents the linear function is y = 2x.

Find out more on Linear equation at: https://brainly.com/question/13763238

Answer:

Step-by-step explanation:

answer is -10

Taking into account the definition of a system of linear equations, the solution t=14 represents a viable time that the trains are side by side.

A system of linear equations is a set of two or more equations of the first degree, in which two or more unknowns are related.

Solving a system of equations consists of finding the value of each unknown so that all the equations of the system are satisfied. That is to say, the values ​​of the unknowns must be sought, with which when replacing, they must give the solution proposed in both equations.

The system of equations to be solved is

[tex]\left \{ {{y=14t^{2} } \atop {y=96t+1400}} \right.[/tex]

There are several methods to solve a system of equations, it is decided to solve it using the substitution method, which consists of clearing one of the two variables in one of the equations of the system and substituting its value in the other equation.

In this case, substituting the first equation in the second you get:

14t²= 96t +1400

Solving:

14t²- 96t -1400=  0

Being this a quadratic function of the form ax² + by +c, then it can be solved by: [tex]x1,x2=\frac{-b+-\sqrt{b^{2} -4ac} }{2a}[/tex]

In this case, being a=14, b=-96 and c=-1400, the equation is solved by:

[tex]t1=\frac{-(-96)+\sqrt{(-96)^{2} -4x14x(-1400)} }{2x14}[/tex]

[tex]t1=\frac{96+\sqrt{9216 +78400} }{28}[/tex]

[tex]t1=\frac{96+\sqrt{87616} }{28}[/tex]

[tex]t1=\frac{96+296}{28}[/tex]

[tex]t1=\frac{392}{28}[/tex]

t1=14

and

[tex]t2=\frac{-(-96)-\sqrt{(-96)^{2} -4x14x(-1400)} }{2x14}[/tex]

[tex]t2=\frac{96-\sqrt{9216 +78400} }{28}[/tex]

[tex]t2=\frac{96-\sqrt{87616} }{28}[/tex]

[tex]t2=\frac{96-296}{28}[/tex]

[tex]t2=\frac{-200}{28}[/tex]

t2= -7.14

Since time cannot be a negative value, the solution t=14 represents a viable time that the trains are side by side.

Learn more about system of equations:

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Answer:

134

Step-by-step explanation:

938÷7=134

Answer:

-2.964

Step-by-step explanation:

Using the z-distribution, as we are working with a proportion, it is found that:

A. Yes, the data provides convincing statistical evidence that Swedish men who would be classified into group A have a lower probability of stroke than Swedish men who would be classified into group B.

B. Considering that the data provides statistical evidence, the conclusion was appropriate.

At the null hypothesis, it is tested if the proportions are the same, that is:

[tex]H_0: p_A - p_B = 0[/tex]

At the alternative hypothesis, it is tested proportion A is less than proportion B, that is:

[tex]H_1: p_A - p_B < 0[/tex]

For each sample, they are given by:

[tex]p_A = \frac{458}{9250} = 0.0495, s_A = \sqrt{\frac{0.0495(0.9505)}{9250}} = 0.0023[/tex]

[tex]p_B = \frac{543}{9250} = 0.0587, s_B = \sqrt{\frac{0.0587(0.9413)}{9250}} = 0.0024[/tex]

Hence, for the distribution of differences, we have that:

[tex]\overline{p} = p_A - p_B = 0.0495 - 0.0587 = -0.0092[/tex]

[tex]s = \sqrt{s_A^2 + s_B^2} = \sqrt{0.0023^2 + 0.0024^2} = 0.0033[/tex]

It is given by:

[tex]z = \frac{\overline{p} - p}{s}[/tex]

In which p = 0 is the value tested at the null hypothesis.

Hence:

[tex]z = \frac{\overline{p} - p}{s}[/tex]

[tex]z = \frac{-0.0092 - 0}{0.0033}[/tex]

[tex]z = -2.77[/tex]

Item a:

Considering a left-tailed test, as we are testing if the proportion is less than a value, with the standard significance level of 0.05, the critical value is of [tex]z^{\ast} = -1.645[/tex].

Since the test statistic is less than the critical value, it is found that yes, the data provides convincing statistical evidence that Swedish men who would be classified into group A have a lower probability of stroke than Swedish men who would be classified into group B.

Item b:

Considering that the data provides statistical evidence, the conclusion was appropriate.

More can be learned about the z-distribution at https://brainly.com/question/26454209

Answer:

it is so hard it's optional math bro I tried much

Step-by-step explanation:

hope others can give answers

Answer:

34 degrees

Step-by-step explanation:

sin(x) = opp/hyp = 9/16

So, x = 34.22 degrees

After rounding to the nearest degree, x = 34 degrees

Answer:

All of them except A

B: 10 meters in 4 seconds

C: 7.5 meters in 3 seconds

D: 5 meters in 2 seconds

Step-by-step explanation:

divided the number meters by the number seconds to get meters per second

Answer:

[tex]\frac{5a^4b^5}{9}[/tex]

Step-by-step explanation:

[tex]\frac{15a^1^6b^1^1}{(3a^4b^2)^3}[/tex]

[tex]=\frac{15a^1^6b^1^1}{27a^1^2b^6}[/tex]

[tex]=\frac{15a^4b^5}{27}[/tex]

[tex]=\frac{5a^4b^5}{9}[/tex]

Answer = [tex]=\frac{5a^4b^5}{9}[/tex]  

(

x

)

=

x

3

+

2

x

2

−

3

x

Explanation:

given zeros

x

=

−

3

,

x

=

0

,

x

=

1

then factors are

(

x

+

3

)

,

(

x

−

0

)

,

(

x

−

1

)

⇒

f

(

x

)

=

x

(

x

+

3

)

(

x

−

1

)

⇒

f

(

x

)

=

x

(

x

2

+

2

x

−

3

)

⇒

f

(

x

)

=

x

3

+

2

x

2

−

3

x

is a possible function

graph{x^3+2x^2-3x [-10, 10, -5, 5]}

Answer:

a = 70°

b = 80°

Step-by-step explanation:

Angles on a straight line add up to 180°

⇒ a + 110 = 180

⇒ a = 180 - 110

⇒ a = 70°

The sum of the interior angles of a quadrilateral is 360°

⇒ a + b + 130 + 80 = 360

⇒ 70 + b + 130 + 80 = 360

⇒ b + 280 = 360

⇒ b = 360 - 280

⇒ b = 80°

Answer:

y=x-1

Step-by-step explanation:

Do the math. Just plug in x and y trust me it’s easy

Answer: y= x-1

Step-by-step explanation: y is always x minus 1 because -4 is one less than -3, 1 is one less than 2, and 4 is one less than 5.

Answer:

pick all 3 of the bottom row

Answer:

we can do it again and again and again and again and again and again and again and again and again on Monday morning baby I'm a fan for the rest are the only way we do to help me to get to see this

Answer:

f(x)=-5x+1x=−5x+1, find f(6)

f(6)= -5(6)+1(6)=-5(6)+1

F(6)=-24,-29