3 years ago

What value of k will make this expression equal to 0? b×3.8×2.72×(k-4)

Mathematics

1 answer:

Nana76 [90]3 years ago

6 0

It would be 4 because if all the rest of the equation is multiplied by 0, then the equation will equal 0.

You might be interested in

A study published in Health Magazine in 2010 suggested that a combination of high blood pressure and binge drinking have an incr

nekit [7.7K]

Answer:

This is a Retrospective study

Step-by-step explanation:

Retrospective study is a study that compares two groups of people; those with disease or condition under study and a very similar group of people who do not have the disease or condition.

Here they are compring those men with high blood pressure who drank and those with no high blood pressure and don't drink.

6 0

2 years ago

Verify the pythagorean identity 1 + c o t ^2 θ = c s c ^2 θ

Grace [21]

Answer: The identity is verified. See the explanation.

Step-by-step explanation:

You must keep on mind the following identities:

$csc\theta=\frac{cos\theta}{sin\theta}\\\\csc\theta=\frac{1}{sin\theta}\\\\sin^2\theta+cos^2\theta=1$

Therefore, by substitution, you can rewrite the identity as shown below:

$1+cot^2\theta=csc^2\theta\\\\1+\frac{cos^2\theta}{sin^2\theta}=csc^2\theta$

Simpliying, you obtain:

$\frac{sin^2\theta+cos^2\theta}{sin^2\theta}=csc^2\theta\\\\\frac{1}{sin^2\theta}=csc^2\theta\\\\csc^2\theta=csc^2\theta$

The identity is verified.

6 0

3 years ago

An airplane is traveling in the direction 20 degrees west of north at 700 km/hr. Find the component form of the velocity of the

OLga [1]

Answer:

(-239.4, 657.8) km/h

Step-by-step explanation:

Measured CCW from the +x axis, the angle at which the airplane is traveling is 110°. Then the (x, y) components of the velocity vector are ...

(700 km/h)(cos(110°), sin(110°)) ≈ (-239.4, 657.8) km/h

4 0

3 years ago

More help with math guys, I need all the help i can get

Fiesta28 [93]

I think it’s A pretty sire

5 0

3 years ago

I don’t know how to divide 3 and 2 digits

Varvara68 [4.7K]

3.5 think of it as 3.0
C. ——
2.0

8 0

3 years ago