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3 years ago

-9.2. Divided by 7.9.

Mathematics

1 answer:

Wittaler [7]3 years ago

7 0

Answer:

Step-by-step explanation:

44w55

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What is the value of y in the equation 4x +3 y= 23 when x=2 , x=6

balandron [24]

Answer:

5, -⅓

Step-by-step explanation:

x = 2:

4x + 3y = 23

3y = 23 - 4(2)

3y = 15

y = 5

x = 6:

4x + 3y = 23

3y = 23 - 4(6)

3y = -1

y = -⅓

8 0

3 years ago

What triangle congruence theorem is needed?

slava [35]

Side side side
**************************************************************

3 0

3 years ago

Recall the equation for a circle with center ( h , k ) and radius r . At what point in the first quadrant does the line with equ

astraxan [27]

Answer:

The Point in the first quadrant is $(\sqrt[2]{2.0268} ,6.559)$ .

Step-by-step explanation:

Since

we know the general equation of the circle whose center is at (h,k) and radius is r that is

$(x-h)^2+(y-k)^2 =r^2$

we have given center is (0,3) and radius is r= 4

substituting in the general equation of the circle we get

$x^2 +(y-3)^2 = 16$

Now substituting the y= 2.5x + 3 in the above equation we get

$x^2 +(2.5x + 3-3)^2 = 4^2$

$x^2 +6.25x^2 = 16$

here subtracting 16 from both sides and also perform addition

we get

$7.25x^2 = 16$

dividing both sides by 7.25 we get

$x^2 =2.2068$

taking square root both sides we get

$x= \frac{+}{-}\sqrt[2]{2.0268}$

but we need positive value of x because both x and y are positive in the first quadrant

that is

$x= \sqrt[2]{2.0268}$

substituting this into the given equation of the line we get

y = 2.5( $\sqrt[2]{2.0268}$ )+3

y = 6.559

so the point in the first quadrant is ( $\sqrt[2]{2.0268}$ ,6.559)

that is required

6 0

4 years ago

Read 2 more answers

Completely factor

Oksi-84 [34.3K]

Your answer is

4) -x(3x+2)(2x-5)

6 0

3 years ago

Two more than 16 times a number is the same as 21 less than the product of -7 and the number

erastova [34]

16x+2=-7x-21

x = -1

So yeah

6 0

4 years ago