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3 years ago

Plss help for brainlist !!!!!!!!!!!! view the images to answer

Mathematics

1 answer:

GalinKa [24]3 years ago

5 0

Answer: The answer is b 2nd one

Step-by-step explanation:

Explanation - 2a + 2a = 4a + a + a = 6a and 4 + 4 = 8 so 6a + 8

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Which linear function is directly proportional?

spayn [35]

Answer:

y=3*2+2

Step-by-step explanation:

y=3*2+2

=3*2=6

=6+2=7

y=7

8 0

3 years ago

The unbalanced wheel has a mass of 15 kg and rolls without slipping on the flat horizontal surface. The wheel has a radius of gy

miv72 [106K]

Answer:

a) $a_w=4.331m/s^2$

b) $F=53.7N$

c) $\mu=96.5N$

Step-by-step explanation:

From the question we are told that

mass of unbalanced wheel $M=15kg$

Radius of gyration $G=64m$

Mass center $M_c =40mm=$ $4*10^{-2} m$

Angular velocity $\omega=4rads/s$

Generally the equation for moment at point A is mathematically given as

$\sum M_a=I \alpha+\sum M \=ad$

Where $a_w=wheel\ accelaration$

$15*9.81*(0.04)=0.06144*\frac{a_w}{0.1}+15(0.04)(0.04)\frac{a_w}{0.1}+(15a_w-15(0.04)(4^2)0.1)$

$5,87=(a_w*0.8544+15a_0-0.96)$

$a_w=4.331m/s^2$

Generally the equation for equilibrium of system on the horizontal axis is mathematically given as

$\sum f_x=ma_w$

$F=ma_w-m \=r w^2$

$F=(25*4.221)-(15*0.04*4^2)$

$F=63.3-9.6$

$F=53.7N$

Generally the equation for equilibrium of system on the vertical axis is mathematically given as

$\sum f_y=ma_w$

Where

$F=\mu-mg+m \=r \alpha$

$\alpha=\frac{a_0}{0.1}$

$\mu-mg+m \=r \alpha=0$

$\mu-15*9.81+15*0.04*\frac{4.221}{0.1}$

$\mu-96.5N=0$

$\mu=96.5$

3 0

3 years ago

Find the area of the following figure..

Marina86 [1]

Answer:

456 $cm^{2}$

Step-by-step explanation:

Find the height of the trapezoid first (QR):

$\sqrt{37^{2} -35^{2} }$ = 12

QR = 12

Area:

$\frac{a+b}{2}$ × h = $\frac{35+41}{2}$ × 12

= 456 $cm^{2}$

5 0

2 years ago

. There are 10 beads in a bag. 5 beads are black; 3 beads are white and the rest are red. A bead is picked at random. Find the p

Bingel [31]

Part A

P(white) = (3 white)/(10 total) = 3/10

<h3>Answer: 3/10</h3>

==============================================

Part B

10 total, 3 are white

10-3 = 7 are not white so they are either black or red

P(black or red) = 7/10

<h3>Answer: 7/10</h3>

==============================================

Part C

Earlier in part B we calculated 7 beads that weren't white

This means P(not white) = P(black or red) = 7/10

They are the same probability just phrased slightly different ways.

<h3>Answer: 7/10</h3>

==============================================

Part D

There aren't any blue beads (unless there's a typo somewhere). So the probability of picking not blue is 100% or we represent this as the value 1.

<h3>Answer: 1</h3>

3 0

2 years ago

The Federal Communication Commission (FCC) has which of the following goals to address opportunities and challenges in facilitat

masya89 [10]

Answer:

a. Federal agencies should increase collaboration to promote positive outcomes.

Step-by-step explanation:

Federal agencies should increase collaboration to promote positive outcomes in the healthcare sector. To make healthcare more efficient and effective the Federal Communication Commission (FCC) should collaborate with the health care sector in providing and facilitating excellent connectivity and communication, and also address the opportunities and challenges that might be encountered during the process.

7 0

3 years ago