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12345 [234]
3 years ago
14

What ratio is equivalent to 2:9

Mathematics
1 answer:
Lorico [155]3 years ago
6 0

Answer:

8:36

Step-by-step explanation:

Factors: 1 , 2 , 3 , 4 , 6 , 9 , 12 , 18 , 36

GCF: 4

8 ÷ 4 = 2 36 ÷ 4 = 9

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Help me please..........
aleksklad [387]

Answer:

66.4°

Step-by-step explanation:

→ Find the side which is not given

Hypotenuse = 15 cm

Opposite = ?

Adjacent = 6 cm

→ Utilise the formula triangle with out opposite in it

Cos⁻¹ = Adjacent ÷ Hypotenuse

→ Substitute in the terms

Cos⁻¹ = 6 ÷ 15 ⇔ 66.4°

3 0
3 years ago
Those 2 questions I need help with . find sec θ and tanθ
Zielflug [23.3K]

STEP - BY - STEP EXPLANATION

What to find?

The the value of secθ.

Given:

(4, 3)

⇒(x, y) = (4, 3)

Step 1

Draw a sketch.

Step 2

Substitute the values into the trig. ratio formula below.

tan\theta=\frac{opposite}{adjacent}

From the sketch above, opposite = 3 and adjacent = 4

tan\theta=\frac{3}{4}

Step 3

Find the value of the hypotenuse side using Pythagoras theorem.

let h be the hypotenuse side.

\begin{gathered} h^2=4^2+3^2 \\  \\ =16+9 \\  \\ =25 \\  \\ h=5 \end{gathered}

Hence, hypotenuse = 5

Step 4

Substitute the values into the formula below:

\begin{gathered} cos\theta=\frac{adjacent}{hypotenuse} \\  \\ =\frac{4}{5} \end{gathered}

But,

sec\theta=\frac{1}{cos\theta}=\frac{1}{\frac{4}{5}}=\frac{5}{4}

ANSWER

secθ= 5/4

tanθ=3/4

7 0
1 year ago
Whats the center and the radius of the circle(x+4)²+(y+6)²=64
inessss [21]

Answer:

The center is (-4,-6) and the radius is 8

Step-by-step explanation:

(x+4)²+(y+6)²=64

The equation of a circle can be written in the form

(x-h)²+(y-k)²=r^2

Where (h,k) is the center and r is the radius

Rewriting the equation

(x - -4)²+(y- -6)²=8^2

The center is (-4,-6) and the radius is 8

5 0
3 years ago
Which of the following sets shows all the numbers from the set {1, 2, 3, 4} that are part of the solution to the inequality 7x +
gtnhenbr [62]
3 and 4 would both be corrent because one is smaller is 2 would make it equal
3 0
3 years ago
Find the equation of a line that passes through points A and B.
mars1129 [50]

Answer:

y = 2x - 1

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = A(4, 7) and (x₂, y₂ ) = B(2, 3)

m =  =  = 2, thus

y = 2x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation.

Using B(2, 3), then

3 = 4 + c ⇒ c = 3 - 4 = - 1

y = 2x - 1 ← equation of line

6 0
2 years ago
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