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Amiraneli [1.4K]

3 years ago

5

Given that a x b = 70, work out the value of 3b/a

1 answer:

dangina [55]3 years ago

6 0

Answer:

this question has many answer like 210,3/70,6/35 etc

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Look at the figure and answer

andreyandreev [35.5K]

Answer:

$\cos x=\dfrac{8}{f}$

Step-by-step explanation:

Given that,

$\tan x=\dfrac{e}{8}\\\\\sin x=\dfrac{e}{f}$

We need to find the value of cos x.

We know that,

$\tan\theta=\dfrac{\sin\theta}{\cos\theta}$

Using the above relation,

$\dfrac{e}{8}=\dfrac{\dfrac{e}{f}}{\cos x}\\\\\cos x=\dfrac{\dfrac{e}{f}}{\dfrac{e}{8}}\\\\=\dfrac{e}{f}\times \dfrac{8}{e}\\\\=\dfrac{8}{f}$

So, the value of cos x is equal to $\dfrac{8}{f}$ .

7 0

3 years ago

X=8 units and h=5 units what is the area of the triangle

kykrilka [37]

Area=20. Ur welcome!

4 0

4 years ago

Circle O, with center (x, y) passes through the points A(0, 0), B(-3, 0), and C(1, 2). Find the coordinates of the center of the

KonstantinChe [14]

Answer:

The center of the circle is

$(-\frac{3}{2},2)$

Step-by-step explanation:

Let the equation of the circle be

$x^2+y^2+2ax+2by+c=0$ , where (-a,-b) is the center of this circle.

The points lying the circle must satisfy the equation of this circle.

A(0,0)

We substitute this point to get;

$0^2+0^2+2a(0)+2b(0)+c=0$

$\implies c=0$

B(-3,0)

$(-3)^2+0^2+2a(-3)+2b(0)+c=0$

$\implies 9+0-6a+0+c=0$

$\implies -6a+c=-9$

But c=0

$\implies -6a=-9$

$\implies a=\frac{3}{2}$

C(1,2)

$1^2+2^2+2a(1)+2b(2)+c=0$

$1+4+2a+4b+c=0$

$2a+4b+c=-5$

Put the value of 'a' and 'c' to find 'b'

$2(\frac{3}{2})+4b+0=-5$

$3+4b+0=-5$

$4b=-5-3$

$4b=-8$

b=-2

Hence the center of the circle is

$(-\frac{3}{2},2)$

8 0

3 years ago

PLZ HELP ASAP I don’t know the answer and I keep getting it wrong

Nuetrik [128]

I believe the Slope- intercept formula is y = mx + b

Slope is your m = -4
Point: (2, -4)
x = 2
b is your y-intercept = -4

Answer: y = -4(2)+ -4 or -4(2)-4?

So sorry if it’s wrong but I hope this helps

4 0

3 years ago

Find the scale factor for the dilation shown.

Morgarella [4.7K]

Answer:

the scale factor is 3

Step-by-step explanation:

5 0

3 years ago