I will mark you as BRANLIEST and I will give you 55 points if you answer correctly.

~Solve each system of equations using elimination. SHOW YOUR WORK

1) -4x+3y=-5
4x-5y=3

2) 2x+3y=36
10x-6y=12

Answer:

1. area = 1/2bh = (1/2)(21)(18) = 189 yd²

2. 3x2x3x2 = 36 different ways

3. area of kite = (1/2)(18)(24) = 216 units²

4. 8:52  or reduced,   2:13

5. Sorry, this is not my strong point

Step-by-step explanation:

Answer:

Mikhail's age is 48

Step-by-step explanation:

Answer:

107-11=96

96÷2=48

so Mikhail is 48 years old

Answer:

B. 1.618

Step-by-step explanation:

I calculated it logically

Answer:

y-intercept=2

Step-by-step explanation:

2y=-3x+4

divide both sides by 2

y=-1.5x+2

y=mx+c

'c' is the y-intercept so '2' is the answer.

Answer:

= -3/2

Step-by-step explanation:

The equation of the line = 2y = -3x + 4

2y = -3x + 4

2y = -3x + 4

2 2 2

y intercept of the line = -3/2.

Answer:

18

Step-by-step explanation:

3x2x3=18

,,,,,,,,,,,,,,,,,,

Answer:

4.1

Step-by-step explanation:

cos 63° = WX/9

WX = 9 × cos 63°

WX = 4.1

If Triangle SRTs angle R is 59° angle T is 79°  the length of ST to the nearest 10th of a yard is 6.1

Since we have given that

ΔSRT is a triangle with measures :

SR = 7 yd

∠T = 79°

∠R = 59°

We need to find the side ST .

To find the length of ST, we can use the Law of Sines, which states:

sin(T) / SR = sin(R) / ST

sin(79°) / 7 = sin(59°) / ST

0.14 = sin(59°) / ST

ST =  sin(59°)/0.14 ⇒ 0.8572 / 0.14 ≈ 6.1229

Therefore, the length of ST is approximately 6.1 yards to the nearest tenth of a yard

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When proving the properties of logarithms when exponents must be used, the property that is used in all of these is D. \(log_{b} (b^y) = y\)

When proving any property of logarithms that have to do with exponents, one property that should always be used is  \(log_{b} (b^y) = y\).

Expressing y as a product of \(log_{b} (b^y)\) is the most basic property of using exponents on logs because it has both product, quotient, and power rules of logarithms.

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Check the picture below.

Answer:

∠ U = 12°

Step-by-step explanation:

the inscribed angle RST is half the measure of its intercepted arc RT , then

arc RT = 2 × ∠ RST = 2 × 30° = 60°

the secant- tangent angle U is equal to half the difference of its intercepted arcs, that is

∠ U = \(\frac{1}{2}\) ( RS - RT ) = \(\frac{1}{2}\) × (84 - 60)° = \(\frac{1}{2}\) × 24° = 12°

Answer:

x=3

Step-by-step explanation:

That is your answer

The correct answer is option A which is x = 3.

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.

here, we have,

given that,

The expression will be solved as:-

(8x-8)^3/2 = 64

We can write 64 as  16^(3/2)

( 8x - 8 )^(3/2) = 16^(3/2)  

8x - 8 = 16

8x = 24

x = 3

Therefore the correct answer is option A which is x = 3.

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Answer:

2646

Step-by-step explanation:

is the correct answer for This question

The required equivalent expression is (216 x 16).

The correct is D.

In mathematics, an expression is a phrase that has at least two numbers or variables and at least one maths operation. Addition, subtraction, multiplication, or division are all examples of maths operations. An expression's structure is as follows:

(Number/variable, Math Operator, Number/variable) is an expression.

We have the Expression as,

6³ x 4²

Now, expand the exponents as

6³

= 6 x 6 x 6

= 216

and, 4² = 4 x 4 = 16

Thus, the required equivalent expression is (216 x 16).

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The probability that the sum of the pips selected that is at least 11 would be = 1/12.

To determine the probability of the selected events, the formula for problem should be used which is given below;

Probability = possible outcome/sample space

Possible outcome = at least 11 = (5,6),(6,5),(6,6)

= 3

Sample space = 36

Probability = 3/36 = 1/12

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Answer:

5/2 13/6 80/21

Step-by-step explanation:

the reciprocal is just flipping the fraction over, if they asked you to simplify its

4 1/2, 2 1/6, and 3 4/5  

Answer:

0

Step-by-step explanation:

Using the slope formula

m = (y2-y1)/(x2-x1)

    = (4-4)/(3-4)

     = 0/-1

   = 0

9514 1404 393

Answer:

  49.5 ft

Step-by-step explanation:

The diagonal of a square is √2 times its side length. This means the length of the walkway will be ...

  (35 ft)√2 ≈ 49.5 ft . . . walkway length

The most appropriate choice for Similar and congruent triangles will be given by

Third Option dilation is correct.

What are Similar and congruent triangles?

Two triangles are similar if their angles are equal but their sides are proportional

The different axioms of similarity are SAS, SSS, AA

Two triangles are congruent if their sides and angles are both equal

The different axioms of congruency are ASA, SAS, AAS, RHS, SSS

Here, A stands for angle, S stands for side R stands for right angle, H stands for hypotenuse.

Here,

Two Similar triangle means corrosponding sides are proportional and two congruent triangle means corrosponding sides and angles and angles are same

The triangle after rotation and reflection do not change any length of side or angle. So the triangles will be same after reflection or rotation. So congruency will not be disturbed here.

Now, in case of dilation, length of each side will change but in same proportion.

So dilation can make two similar triangles but not congruent triangles

So third option is correct.

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Complete Question

Triangle P undergoes a sequence of tranformations resultig in triangle Q which sequence of transformations could be used to show that triangle Q is similar but not congruent to triangle P

a) Rotation

b) Reflection

c) Dilation

d) Any of these could be the transformation

Answer:

Step-by-step explanation:

I attached the work and answer below, take a look!

Answer:  \(y=\frac{13}{2} x+3\)

Step-by-step explanation:

Remember the point-slope equation which is \(y-y_{1} = m(x-x_{1} )\)  where\((x_{1} , y_{1} )\) is your point and \(m\) is your slope.

Given that we substitute what you have:

\(y-(-10) =\frac{13}{2} (x - (-2))\)

Minus and minus give us positive:

\(y+10 =\frac{13}{2} (x +2)\)

Multiply slope into the parenthesis:

\(y+10= \frac{13}{2}x + \frac{13}{2}*2\\\)

Calculate it:

\(y+10= \frac{13}{2}x +13\)

Isolate the \(y\) by subtracting 10 from both sides:

\(y=\frac{13}{2} x + 13 -10\)

Your final equation is:

\(y=\frac{13}{2} x +3\)

Hope this makes sense!

And here's the graph to prove that the line actually goes through the point \((-2,-10)\):

Answer:

x = -4, -5, -6, -7...

Step-by-step explanation:

x = all negative integers less than -3

The solution to the system of equations is (x, y) = (-261/47, 44/47) as an ordered pair.

To solve the given system of equations:

Equation 1: 8x + 9y = -36

Equation 2: x + 7y = 1

We can use the method of substitution or elimination to find the values of x and y. Let's use the method of substitution:

From Equation 2, we can solve for x:

x = 1 - 7y

Substituting this value of x into Equation 1:

8(1 - 7y) + 9y = -36

8 - 56y + 9y = -36

-47y = -44

y = 44/47

Substituting the value of y back into Equation 2 to find x:

x + 7(44/47) = 1

x + 308/47 = 1

x = 1 - 308/47

x = (47 - 308)/47

x = -261/47

Therefore, as an ordered pair, the solution to the system of equations is (x, y) = (-261/47, 44/47).

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Answer:

27 stuffed bears

Step-by-step explanation:

Erin: 55   Su: 15

Erin: 55-7=48 ( 7 will be kept for herself)

Erin and her sisters: 48/4= 12

Each sister besides Erin and Su have 12

Su: 15+12=27

Thus, Su will have 27 stuffed bears

Answer:

31 Stuffed Bears

Step-by-step explanation:

55 - 7 = 48

48 / 3 = 16

16 + 15 = 31

Sue has 31 stuffed bears

If outcome O₁ has a frequency 4/a, outcome O₂ has a frequency 12/a, and outcome O₃ has frequency 3/a, then the value of a is 19

Frequency of outcome O₁ = 4/a

Frequency of outcome O₂ = 12/a

Frequency of outcome O₃ = 3/a

Let's say 1/a = x

Now, the Frequency of outcome O₁ = 4x

Frequency of outcome O₂ = 12x

Frequency of outcome O₃ = 3x

The sum of the respective frequencies must equal 1.

So, 4x + 12x + 3x = 1

                      19x = 1

x = 1/19

That means that the “a” in the problem is 19.

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Answer:

11x+6

Step-by-step explanation:

Using FOIL

(x+1)-(-2x-5)-original

F-first=(x+2x)=3x

O-outside=(x+5)=5x

I-inside=(1+2x)=3x

L-last=(1+5)=6

11x+6

Step-by-step explanation:

0.00046 kiloseconds =46CS

4096 MB=4.000002 GB

Answer:

75,000km  (kilometres)  converted from given 0.075 giga meters  gm

gm to km multiplies by 1 million

46 cs (centisecond) converted from given  0.00046 kilo second ks

ks x cs multiplies by 100,000

4.096 GB (Gigabyte)  converted from given 4096 Mega Byte MB

MB to GB divides by 1000

KB to GB divides by 1000

GB to MB multiplies by 1000

MB to KB multiplies by 1000  so that GB, MB, KB are all 1000 x each other.

0.0000002 mg (milligram) converted from 0.0002 Microgram ug

ug  microgram to mg milligram divides by 1000

Explanation of cs : seconds. siemens.

Language useful fact to know is the German name of kiloseconds and centiseconds is kilosiemens and centisiemens.

Which means Siemens means seconds.

The siemens (symbol: S) is the derived unit of electric conductance, electric susceptance, and electric admittance in the International System of Units (SI). Conductance, susceptance, and admittance are the reciprocals of resistance, reactance, and impedance respectively; hence one siemens is redundantly equal to the reciprocal of one ohm (Ω−1) and is also referred to as the mho. The 14th General Conference on Weights and Measures approved the addition of the siemens as a derived unit in 1971.[1]

The unit is named after Ernst Werner von Siemens. In English, the same word siemens is used both for the singular and plural

The unit siemens for the conductance G is defined by

{\displaystyle \mathrm {[S]} =[\Omega ^{-1}]=[\mathrm {A} /\mathrm {V} ]}{\displaystyle \mathrm {[S]} =[\Omega ^{-1}]=[\mathrm {A} /\mathrm {V} ]}

where Ω is the ohm, A is the ampere, and V is the volt.

For a device with a conductance of one siemens, the electric current through the device will increase by one ampere for every increase of one volt of electric potential difference across the device.

The conductance of a resistor with a resistance of five ohms, for example, is (5 Ω)−1, which is equal to 200 mS.

Another name for the siemens is the mho (/ˈmoʊ/). As the reciprocal of one ohm, it is the word ohm spelled backwards, at the suggestion of Sir William Thomson (Lord Kelvin) in 1883.[3] Its symbol is an inverted capital Greek letter omega: U+2127 ℧ INVERTED OHM SIGN.

NIST's Guide for the Use of the International System of Units (SI) refers to the mho as an "unaccepted special name for an SI unit", and indicates that it should be strictly avoided.[4]

The SI term siemens is used universally in science and often in electrical applications, while mho is still used in some electronic contexts.

The inverted capital omega symbol (℧), while not an official SI abbreviation, is less likely to be confused with a variable than the letter 'S' when writing on a blackboard or doing algebraic calculations by hand. The usual typographical distinctions (such as italic for variables and roman for units) are difficult to maintain. Likewise, it is difficult to distinguish the symbol 'S' (siemens) from the lower-case 's' (seconds), potentially causing confusion.[5] So, for example, a pentode’s transconductance of 2.2 mS might alternatively be written as 2.2 m℧ or 2200 μ℧ (most common in the 1930s) or 2.2 mA/V.

A handwritten 'S' can also be misread as the frequency-space variable 's', commonly used in transfer functions.

The ohm had officially replaced the old "siemens unit", a unit of resistance, at an international conference in 1881.[6]

Based on the information, there are 25 cars with good brakes and good tires.

Total cars = 50

Cars with faulty brakes = 10

Cars with faulty tires = 15

Cars with faulty brakes and good tires = 2

Let's calculate the number of cars with good brakes and good tires:

Cars with faulty brakes or faulty tires = Cars with faulty brakes + Cars with faulty tires - Cars with faulty brakes and good tires

= 10 + 15 - 2

= 25

Cars with good brakes and good tires = Total cars - Cars with faulty brakes or faulty tires

= 50 - 25

= 25

Therefore, there are 25 cars with good brakes and good tires.

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We want to find the motion equation for the two horses and then use these equations to find how far would run each horse in 12 minutes.

The motion equations are:

And in 12 minutes horse A moves 3 miles while horse B moves 4.8 miles

We can see that both equations pass through the point (0, 0), thus both equations are proportional equations of the form:

y = k*x

Then to get the equations we just need one point on each line, for example for horse A we can use the point (8 min, 2 mi)

Replacing that in the general equation we get:

2 mi = k*8min

Now we can solve that for k

(2 mi)/(8 min) = k

(1/4) mi/min = k

Notice that this is a speed.

For horse B we can use the point (5 min, 2 mi), in the same way than above we will get:

2 mi = k*5 min

(2mi/ 5 min) = k

(2/5) mi/min = k

Then the two equations are:

Now we want to see how far would each horse run in 12 minutes, we get this by evaluating bot equations in x = 12 min

For horse A we get:

y = (1/4) mi/min*12min = 3mi

For hose B we get:

y = (2/5) mi/min*12min = 4.8 mi

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The area of the triangle for which the perimeter is 36 centimeters and the length of the sides are 8 cm and 12 cm, found using the Heron's formula is 12·√(15) square centimeters.

Heron's formula is a formula for finding the area of a triangle which is credited to Heron of Alexandra.

The length of the third side is therefore;

36 cm - 8 cm - 12 cm = 16 cm

Heron's formula for finding the area of a triangle can be presented as follows;

Area = √(s·(s - a)·(s - b)·(s - c))

Where;

s = The semi–perimeter of the triangle = P/2

Therefore, s = (36 cm)/2 = 18 cm

a, b, and c = The lengths of the sides of the triangle

Let a represent the 8 cm side, b represent the 12 cm side and let c represent the 16 cm side, we get;

Area = √(18×(18 - 8)×(18 - 12)×(18 - 16)) = √(18 × 10 × 6 × 2) = 12·√(15)

The area of the triangle = 12·√(15) cm²

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Answer:

Hello! answer: 175 cm2

Step-by-step explanation:

9 × 7 = 63 63 ÷ 2 = 31.5 31.5 × 4 = 126

7 × 7 = 49 126 + 49 = 175 therefore the area is 175 Hope that helps! And I believe the unuts would be cm2 but don't quote me on it

Answer: 8.32462851 × 10-5 m4

Step-by-step explanation: I multiplied them and got this. Hope this helps :)