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3 years ago

Need help really fast will mark brainliest

Mathematics

2 answers:

Volgvan3 years ago

6 0

I’m pretty sure it’s a

bekas [8.4K]3 years ago

3 0

A. Lengths of comedies have greater variability than lengths of documentaries

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AlexFokin [52]

Answer:

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Step-by-step explanation:

5 0

2 years ago

Given that g(x) = x^5 - 5x^4 + 10x^3 - 10x^2 + 5x - 1, find g^-1(x).

Ivan

First Factor.

$(x-1)^5 = x^5 -5x^4+10x^3 -10x^2+5x-1$

$g(x) = y = (x-1)^5$

Find inverse by solving for 'x'

$x-1 = y^{1/5} \\ \\ x = y^{1/5} +1 \\ \\ g^{-1} (x) = x^{1/5} + 1$

7 0

3 years ago

Find the missing angle.

cestrela7 [59]

Answer:

85 degrees

Step-by-step explanation:

The angles in a quadrilateral add to 360 degrees, so x+109+96+70=360.

This means that x=360-109-96-70=85 degrees

5 0

2 years ago

Help me in this pls

Komok [63]

Answer:

A, F, and C are the correct options.

Step-by-step explanation:

4 0

3 years ago

A contractor requires a cement mix that is 70% sand and 30% cement. He has 1400 kg of a cement mix that is 80% sand and 20% ceme

aleksandr82 [10.1K]

Answer:

added cement = 200 kg

Step-by-step explanation:

Sand = 0.8*1400

Sand = 1120 kg

If 1120 kg of sand represents the total sand in the 8:2 mixture.

We have to create the equation of the 7:3 mixture as follows.

The sand amount continues the same but the total amount of the mixture and cement will change.

0.7*mixture_mass + 0.3*mixture_mass = mixture_mass

By replacing values, we have:

1120 kg + 0.3*(1400 kg + added cement)= 1400 kg + added cement

added cement = 200kg

8 0

3 years ago