P is the point of intersection of the lines with equations 5x+3y=9 and 7x -2y= 25. write down the coordinates of P

Step-by-step explanation:

2n =20

n=10

but 2n is greater than 20 and 5n less than 60 so n is 11

The value of number n from the equation is 11

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the number be n

The number n is a whole number

The number 2n is greater than 20

So ,

2n > 20

Divide by 2 on both sides , we get

n > 10

And , the number 5n < 60

Divide by 5 on both sides , we get

n < 12

So , 10 < n < 12

Therefore , the number is greater than 10 but less than 12 , so the whole number is 11

Hence , the number n is 11

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Answer:Use the formula

(b2)2 in order to create a new term in order to find the perfect square trinomial.

y2+8y+32

Step-by-step explanation:

Step-by-step explanation:

y² + 8y + 16

let's just think in general, what is (y + c)² ?

(y + c)² = y² + 2cy + c²

now compare with the original expression.

then c² = 16, and c = ±4

and 2c = 8

c = +4

so, the answer is

y² + 8y + 16 = (y + 4)² = (y + 4)(y + 4)

Answer:

The value of x = 13cm and y = 12cm.

Step-by-step explanation:

P is the exterior point to the circle with centre O

Radius = 5cm

Length of the tangent = 12 cm

Distance between the point and centre of the circle = x cm

We know that

The angle between the radius of the circle and the tangent at the point of contact is 90°

By Pythagoras Theorem

Hypotenuse² = Side²+Side²

⇛x² = 12²+5²

⇛x² = 144+25

⇛x² = 169

⇛x² = 13²

We know that

The lengths of tangents drawn from the exterior point to the circle are equal.

Answer: The value of x=13cm and y = 12cm.

also read similar questions: in the given figure, O and O' are centre of two circles and the circles intersect each other at points B and c. If AOCD is a straight line and /_ AOB =110, find...

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Answer:

a10=3,814.7

Step-by-step explanation:

Use the formula an = a1(r)^n-1 and solve.

the 10th term of the given geometric Sequence is 3814.69.

A geometric sequence is a sequence of numbers that follows a pattern where the next term is found by multiplying by a constant called the common ratio, r.

Given A geometric sequence where first-term = 1 and the ratio is 2.5

From the general formula of the nth term of the geometric sequence:

aₙ = a₁rⁿ⁻¹

In our case,

a₁₀ = 1 * 2.5¹⁰⁻¹

a₁₀ = 2.5⁹

a₁₀ = 3814.69

therefore, the 10th term of the given Sequence is 3814.69.

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You can use the definition of logarithms and some basic properties to find out the solution to the given equation.

The solution for Tenisha's system of equations is given approximately by  x = -4.805

When you raise a number with an exponent, there comes a result.

Lets say you get

[tex]a^b = c[/tex]

Then, you can write 'b' in terms of 'a' and 'c' using logarithm as follows

[tex]b = log_a(c)[/tex]

Some properties of logarithm are:

[tex]log_a(b) = log_a(c) \implies b = c\\\\\log_a(b) + log_a(c) = log_a(b \times c)\\\\log_a(b) - log_a(c) = log_a(\frac{b}{c})\\\\log_a(b) + log_b(c) = log_a(c)[/tex]

The given equation is

[tex]log_3(5x) = log_5(2x + 8)[/tex]

Simplifying and using above properties, we get:

[tex]log_3(5x) = log_5(2x + 8)\\\\log_3(5) + log_3(x) = log_5(2) + log_5(x+4)\\\\\text{Adding}\: \rm log_5(3) \text{ on both the sides}\\\\log_5(3) + log_3(x) + log_3(5) = log_5(2) + log_5(x+4) + log_5(3)\\\\log_5(x) + log_3(5) - log_5(2) - log_5(3) = log_5(x+4)\\\\\text{Using the values of constant logs from calculator}\\\\\log_5(x) - log_5(x+4) = 1.11\\\\log_5(\dfrac{x}{x+4}) = 1.11\\\\\dfrac{x}{x+4} = 5^{1.11}\\\\x = 5.968 \times (x+4)\\4.968x = -23.872\\\\x \approx -4.805[/tex]

Thus,

The solution for Tenisha's system of equations is given approximately by  x = -4.805

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B) (1.0, 1.4)

I got it right on the quiz on Ed2020

Some other questions from the quiz and their answers (people will get different questions even on ed, but may have some in common if not all of them so im hoping this will help someone. )

Which system of equations could be graphed to solve the equation below? log Subscript 0.5 Baseline x = log Subscript 3 Baseline 2 + x

Answer: D

What is the approximate value of q in the equation below?

q+log26=2q+2

Answer: C (0.585)

Devonte used the change of base formula to approximate log Subscript 8 Baseline 25. Which expression did Devonte use?

Answer: D

Which system of equations could be graphed to solve the equation below? log (2 x + 1) = 3 x minus 2

Answer: B

Which expression can be used to approximate the expression below, for all positive numbers a, b, and x, where a Not-equals 1 and b Not-equals 1?

log Subscript x Baseline x

Answer: Not B lol I got it wrong

Which is equivalent to log Subscript 2 Baseline n = 4?

Answer: D

Tenisha solved the equation below by graphing a system of equations.

log Subscript 3 Baseline 5 x = log Subscript 5 Baseline (2 x + 8)

Answer: B

Consider the equation below.

log Subscript 4 Baseline (x + 3) = log Subscript 2 Baseline (2 + x) Which system of equations can represent the equation?

Answer: A

Which expression results when the change of base formula is applied to log Subscript 4 Baseline (x + 2)?

Answer: A

What is the approximate value of x in the equation below?

log Subscript 5 Baseline 15 = x + 3

Answer: B

Answer:

A screenshot of the graph is attached. :)

Answer:

They keep removing my answer but it’s -6

Step-by-step explanation:

Answer:

$7

Step-by-step explanation:

Let x be the cost of the turkey sandwiches and y be the cost of delivery:

4x+y=33

8x+y=61

Subtract the two equations to cancel out y:

-4x=-28

x=7

Each turkey sandwich costs $7

13 is the answer for it

20

Answer:

the first answer is maybe correct

Answer:

102

Step-by-step explanation:

50×2+2

100+2

give brilliant answer

[tex]2+2 \times 5 \times 10 \\ =2+(10)(10) \\ =2+100 \\ =102 \\ [/tex]

Answer:

50%

Step-by-step explanation:

50/100 x 275 = 137.5

137.5 = 275

Answer:

Step-by-step explanation:

Let length = x and width =y

Area of rectangle = 20 square inches

x*y = 20

xy = 20 -------------(I)

Perimeter = 18 cm

2*length + 2*width = 18

2x + 2y = 18

Divide the entire equation by 2

x + y = 9

x = 9 -y -----------------(II)

Substitute x = 9 - y  in equation (I)

(9 - y)*y = 20

9y - y² = 20

0 = 20 +y² - 9y

y² - 9y + 20 = 0

y² - 4y - 5y + 20 = 0

y(y - 4) - 5(y - 4) = 0

(y -4)(y -5) = 0

y - 4 = 0    ; y- 5 = 0

y = 4         ; y = 5

Length = 4 cm and width = 5 cm

Answer:

Step-by-step explanation:

5√15 × -5√15

=-25×(√15)²

=-25×15

=-375

Answer:

(5, 6)

Step-by-step explanation:

First, get both equations into slope-intercept form so they are easier to graph:

[tex]y=mx+b[/tex]

The first equation is already in this form, so only do the second equation:

[tex]x-y=-1[/tex]

To do this, just solve for y and that should almost always get it in the correct form.

[tex]\rightarrow x-y=-1\\\rightarrow -y=-x-1\\\rightarrow y=x+1[/tex]

That equation is also now in slope-intercept form.

Now, using the slope and y-intercept in both equations, you can graph them. Using the graph, you can see the solution of this system of equations at (5, 6).

Answer:

299 miles per hour

Step-by-step explanation:

[tex]v=\frac{234}{\sqrt[3]{\frac{p}{w}}}[/tex]

[tex]v=\frac{234}{\sqrt[3]{\frac{1311}{2744}}}[/tex]

[tex]v\approx299[/tex]

Therefore, the velocity of the car at the end of a drag race is 299 miles per hour

Answer:

x=8-5

Step-by-step explanation:

since we are not given the answer, we write it as x. so we write this expression as x is equal to 8-5

x=8-5

Answer:

x ≈ 64.2

Step-by-step explanation:

tan x° = [tex]\frac{29}{14}[/tex]

x° = arctan [tex]\frac{29}{14}[/tex] ≈ 64.2°

Answer:

[tex]3y + 3y - 12[/tex]

Step-by-step explanation:

This is because if you were to combine like terms, the two beginning values would add up to 6y since adding two y's is just y & 3+3 is 6. & 12 is common sense lol.

Answer:

m<X = 94°

m<Y = 90°

Hope this helps!

Answer:

Still 20

Step-by-step explanation:

Just because 6 of the fish drown (which, for the record, I don't know how they would) doesn't mean they aren't still in the tank. The question asks How many fishes are there in all?. There are still 20 fish total in the tank, even if 6 of them have drowned.

Thanks!

Still 20

See 20 fishes were present at tank.

But they are not out from tank .

They are still present inside the tank.

So they are still 20

Systems of equations that have the same solution are called equivalent systems. We can produce an equivalent system by replacing one equation by the sum of the two equations, or by replacing an equation by a multiple of itself.

1/3x+y=5/4

and

2x-4y=5

Now we use elimination

y=-1/3x+5/4

-4y=4/3x-5

4/3x+4y=5

and

2x-4y=5

Eliminate the y's,

10/3x=10

10x=30

x=3

Plug into other equation

2x-4y=5

2(3)-4y=5

6-4y=5

1=4y

y=1/4

Answer (3,1/4)

Brainliest/Heart would help

Answer:

A: 17/4^2 - s - 5/2

Step-by-step explanation:

For the first chunk:

3s^2 = 12/4s^2

12/4s^2 + 5/4s^2 = 17/4s^2
For the second chunk:
-4s + 3s = -1s or -s

Add the last chunk of account 2 to the equation and you get:

17/4s^2 - s - 5/2

Answer:

A: 17/4^2 - s - 5/2

Step-by-step explanation:

Answer:

80 miles

Step-by-step explanation:

if you look at it 40% = 20 miles

so 60%=40

     80%=60

      then you get to 100%=80 miles so 80 miles is your answer