hey! please help i’ll give brainliest

Answer:

9

Step-by-step explanation:

Answer:

The ordered pair associated with a t-value of -1 is (-3, 1).

Step-by-step explanation:

Substitute the t-value, or -1, into both of the equations to find the pairs.

x = t - 2

x = (-1) - 2

x = -3

y = t^2

y = (-1)^2

y = 1

The ordered pair associated with a t-value of -1 is (-3, 1).

Answer:

3/14=6/28

Step-by-step explanation:

Answer:

14

Step-by-step explanation:

3/x = 6/28

Two ways to solve.

3 * 2 = 6

x * 2 = 28

x= 14

3/x = 6/28

3(28)=6(x)

84=6x

x=14

Answer:

31

Step-by-step explanation:

x+y = 57

x = y+5

=>

y + 5 + y = 57

=> 2×y + 5 = 57

=> 2×y = 52

=> y = 26

=> x = 26 + 5 = 31

Answer: (a)  {a, ar, ar², ar³, ar⁴, ar⁵...}, (b)  arⁿ⁻¹

For part (a), the question gives us the first term a, and then asks us to apply the common ratio r six times.

In order for ar = a, the nth term of r will have to equal 0 (this implies that n is an exponent; thus giving us the first term a, as r = 1).

Since we use this method on the first term, we must use it for the next five, in which r gains an additional exponent for every consecutive value (nth term) thereafter.  

Ultimately getting: {a, ar, ar², ar³, ar⁴, ar⁵...}

For part (b), we first have to understand that the sequence does not start at 0, but at 1 for n. In order for ar = a, with n = 1, there needs to be subtraction of -1 within the exponent. So that arⁿ⁻¹

If we check and apply this, we can see that:

{ar¹⁻¹, ar²⁻¹, ar³⁻¹, ar⁴⁻¹, ar⁵⁻¹, ar⁶⁻¹...} = {a, ar, ar², ar³, ar⁴, ar⁵...} = arⁿ⁻¹ = Tn

Answer: Grand Canyon

Step-by-step explanation: Grand Canyon is a proper noun that should be capitalized. The other options are just nouns that don't need to be capitalized.

Answer:

C. Ben is incorrect. Since the equations have the same slope and different y-intercepts, the system has no solution

Step-by-step explanation:

From the given options the parameters of the equations are;

The slope of the equations are the same

The y-intercept of the equations are different

Therefore, the lines of the two equations ae parallel and there are no points of intersection of the two equations and therefore no solutions

The best correct option is therefore option C.;

C. Ben is incorrect. Since the equations have the same slope and different y-intercepts, the system has no solution.

Answer:

square root -91/3

Step-by-step explanation:

just took the test

The right option is missing. The correct answer is tan(0) = -(√91)/3.

The trigonometric expression tan(0) has a value of -(√91)/3 when cos(0) = -3/10.

The values of all trigonometric functions dependent on the value of the ratio of sides of a right-angled triangle are known as trigonometric ratios. The trigonometric ratios of a right-angled triangle's sides about any of its acute angles are known as that angle's trigonometric ratios.

The three sides of the right-angled triangle are:

Hypotenuse (the longest side)

Perpendicular (opposite side to the angle)

Base (Adjacent side to the angle)

The six trigonometric ratios are sine (sin), cosine (cos), tangent (tan), cotangent (cot), cosecant (cosec), and secant (sec).

The trigonometry ratios for a specific angle ‘θ’ is given below:

Trigonometric Ratios:

Sin θ =  Perpendicular/Hypotenuse

Cos θ = Base/Hypotenuse

Tan θ = Perpendicular/Base or Sin θ/Cos θ

Cot θ = Base/Perpendicular or 1/tan θ

Sec θ = Hypotenuse/Base or 1/cos θ

Cosec θ = Hypotenuse/Perpendicular or 1/sin θ

According to the Pythagoras theorem, we can say that in a right-angled triangle:

Hypotenuese² = Base² + Perpendicular²

We are given cos(0) = -3/10, 0 being an obtuse angle (90° < 0 < 180°, since 0 is an angle in quadrant II)

We need to remember that in quadrant II, sine is always positive, cosine is negative, and tangent is also negative.

We are asked to find the value of tan(0).

We know cos(0) = Base/Hypotenuse.

So we let the hypotenuse be 10k, and let the base be 3k. Let the perpendicular be p.

By Pythagoras' Theorem,

Hypotenuese² = Base² + Perpendicular²

or, (10k)² = (3k)² + p²

or, 100k² = p² + 9k²

or, p² = 100k² - 9k² = 91k² = (k√91)²

or, p = k√91

Now, we can find the value of tan(0):

tan(0) = Perpendicular/Base = -(k√91)/3k = -(√91)/3

(Negative value taken as tan is negative in quadrant II)

∴ The trigonometric expression tan(0) has a value of -(√91)/3 when cos(0) = -3/10.

Learn more about trigonometric expressions at

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Answer:

Did you find It because I need it so can you reply please

Step-by-step explanation:

Answer:

w = 36 centimeters

y = 24 centimeters

Step-by-step explanation:

The exact question is as follows :

Given - Janelle drew KL in isosceles trapezoid FGHJ to create similar trapezoids FKLJ and KGHL.

To find - Based on the given information, what are the values of y and w in centimeters?

Solution -

We can see that from the diagram,

Trapezoid FKLJ is 3 times bigger than Trapezoid KGHL

So,

The side KL = 3 times side GH

⇒12 = 3×4

⇒12 = 12 centimeters

So,

side FJ = 3 times side KL

⇒w = 3×12

⇒w = 36 centimeters

Now,

The side KF = 3 times side KG

⇒KF = 3×8

⇒KF = 24

Now,

We know,

In  isosceles trapezoid  two opposite sides (the bases) are parallel, and the two other sides (the legs) are of equal length

So,

Side LJ = side KF

⇒y = 24 centimeters

∴ we get

w = 36 centimeters

y = 24 centimeters

Answer:

The correct answer to the problem is 9

Step-by-step explanation:

3 x- 1 = 26

3 x = 27

x = 9

Answer:

a = 2[tex]\sqrt{3}[/tex] , c = 4[tex]\sqrt{3}[/tex]

Step-by-step explanation:

Using the tangent ratio in the right triangle and the exact value

tan30° = [tex]\frac{\sqrt{3} }{3}[/tex] , then

tan30° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{a}{b}[/tex] = [tex]\frac{a}{6}[/tex] = [tex]\frac{\sqrt{3} }{3}[/tex] ( cross- multiply )

3a = 6[tex]\sqrt{3}[/tex] ( divide both sides by 3 )

a = 2[tex]\sqrt{3}[/tex]

Using Pythagoras' identity in the right triangle

c² = 6² + (2[tex]\sqrt{3}[/tex] )² = 36 + 12 = 48 ( take square root of both sides )

c = [tex]\sqrt{48}[/tex] = [tex]\sqrt{16(3)}[/tex] = 4[tex]\sqrt{3}[/tex]

Step-by-step explanation:

30-60-90 triangle is a special right triangle whose angles are 30º, 60º, and 90º. The triangle is special because its side lengths are always in the ratio of 1: √3:2.

Answer:2/5

Step-by-step explanation: because 6 people in total like strawberry or vanilla so you get the probabliluty of 6/15 and when you simplify it you get 2/5

Answer:

Slope is 4/3 and y intercept is (0,0)

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

tan30°=P/B

tan30°=P/10√3

1/√3=P/10√3

1/√3×10√3=P

.:P=10

j = 10

Step-by-step explanation:

use the definition of tangent of an angle:

tan 60 = opp/hyp = (10√3)/j

Solving for j,

j = (10√3)/tan 60

But tan 60 = √3 so we can write j as

j = (10√3)/√3

= 10

Answer: 50.27 m

Step-by-step explanation:

[tex]A=\pi r^2\\A=\pi 4^2\\A=50.27[/tex]

Hope this helped! ;)

The circumferance of the given circle is C = 8π.

        x² + y² + 2gx + 2fy + c = 0.

        (x - x₁)² + (y - y₁)² = r²

        x² + y² + 2hx + 2ky + C = 0 where x = - h + rcosθ and y =  - k + rsinθ.

Given is a circle that has a diameter of 8 meters.

We can write the circumferance of the circle as -

C = 2πr

C = 2π (d/2)

C = 2π (8/2)

C = 8π

Therefore, the circumferance of the given circle is C = 8π.

To solve more questions on circle, visit the link below -

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Answer:

-16x-7

Step-by-step explanation:

you distribute the -4, then combine like terms, that is about it, here is a picture of everything i did

Answer:

The discriminant is 0

There is 1 real solution

Step-by-step explanation:

Use the discriminant formula, D = b² - 4ac

In the equation y = x² - 4x + 4, a is 1, b is -4, and c is 4.

Plug in these values into the formula:

D = b² - 4ac

D = (-4)² - 4(1)(4)

D = 16 - 4(4)

D = 16 - 16

D = 0

So, the discriminant is 0.

With a discriminant of zero, there is one real solution.

So, the number of real solutions is 1.

Answer:

Its D!

Step-by-step explanation:

all you have to do for the triangles  to  be simialr is  they have to add up to the same  number.

In triangle abc ma=70  and mb=35  add those  gives you 105

and  in  triangle mnp and M<N =70   which  also gives you 105

since u get the same answer    their similar!

Hope this helps!

Answer:

X less than 10

Step-by-step explanation:

The problem is set up 2x - 8 < 12

So add 8 to both sides to get 2x <20, and then divide by 2 to get x < 10

Answer:

x< or = 9

Step-by-step explanation:

if you try to fill in the equation, the highest you can go without equaling or surpassing 12 would be 9.

2(10)-8=12 but

2(9)-8=10

I really hope this helps, i am sorry if i misunderstood the question....

Answer:

0.009......sushhd

Step-by-step explanation:

14.991.....djdjsj

Answer:

4 ft

Step-by-step explanation:

Since the shape is a square, the bottom part of the orange triangle would be equal to half of a side or 6/2, 3. Now, we can use the pythagorean theorem to find the height:

a^2 + b^2 = c^2

We are already given the hypotenuse or c as 5. We are also given a leg or a, as 3. We can plug those numbers in:

3^2 + b^2 = 5^2

9 + b^2 = 25

b^2 = 16

b = 4 ft

Answer:

B

Step-by-step explanation:

Answer:

y-3=2x * (x-2)

Step-by-step explanation:

hope this helps

Answer:

a

Step-by-step explanation:

Answer:

The answer would be A .......

Answer:

4

Step-by-step explanation:

the formula for radius is

[tex]r=\sqrt{\frac{v}{\pi h } }[/tex]

so. 500 divided by pi times 10. then square root your final answer. cool. let's get started.

3.14*10 is 31.4, you can do that without thinking.

500/31.4=15.92

[tex]\sqrt{}[/tex]15.92= 3.99, or just 4

the radius is four.

Answer:

You would divide it into shapes that you already know, like squares, rectangles and triangles. Find the area of each shape and add them together.

Its pretty simple once you understand it

dont be afraid to ask me if you need some help.

Have a wonderfull day