4 years ago

HELP!! Can anyone answer this?

Mathematics

1 answer:

olya-2409 [2.1K]4 years ago

5 0

I think that it is d

You might be interested in

Write and solve an equation to find the value of the variable 104,137,154,131,x; mean=130

Damm [24]

(104+137+154+131+x) / 5 = 130

The calculation part I would like to leave it for you. It's a good practice.

3 0

4 years ago

Use the Quadratic Formula to find the exact solutions of x2 + 7x - 4 = 0.

sladkih [1.3K]

Answer:

The solution of equation $x^2+7x-4=0$ is 0.53,-7.53.

Step-by-step explanation:

Given : Quadratic equation $x^2+7x-4=0$

To find : The solution of equation ?

Solution :

The solution of the quadratic equation $ax^2+bx+c=0$ is $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

Here, a=1, b=7 and c=-4.

Substitute the values,

$x=\frac{-7\pm\sqrt{7^2-4(1)(-4)}}{2(1)}$

$x=\frac{-7\pm\sqrt{65}}{2}$

$x=\frac{-7+\sqrt{65}}{2},\frac{-7-\sqrt{65}}{2}$

$x=0.53,-7.53$

Therefore, the solution of equation $x^2+7x-4=0$ is 0.53,-7.53.

3 0

3 years ago

How do you solve this

djverab [1.8K]

You can use photo math

8 0

3 years ago

Hello I would like some help with this problem if possible

alexdok [17]

Answer: fifty four degrees (54)

Step-by-step explanation: Using the law of sines you'd multiply both sides by b then plug in the known values... sin(B)= 9/11xsin(80degrees). Then, you'd evaluate to find B and after solving you'd reach 54

5 0

3 years ago

Ricky and Becca are going hiking. they start at (-3.6., -2.6). they hike four units to the east and six units to the north. what

QveST [7]

The answer should be (0.4, 4.6)

6 0

4 years ago