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3 years ago

Help meeeeeeeeeee Help meee

Mathematics

2 answers:

Alinara [238K]3 years ago

5 0

Answer:

Step-by-step explanation:

mariarad [96]3 years ago

5 0

Answer:

Sorry I don't know how to do

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Point G is the centroid of triangle ABC. AG = (5x+4) units and GF= (3x-1) units. What is A F?

Vika [28.1K]

Because G is the centroid of the triangle, therefore AG = 2GF
That is, 5x + 4 = 2(3x - 1)
5x + 4 = 6x - 2
4 + 2 = 6x - 5x
6 = x
Therefore AG = 5*6 + 4 = 34
GF = 3*6 - 1 = 17
A.F = AG + GF = 34 + 17 = 51
Answer: 51

6 0

3 years ago

Read 2 more answers

Angle 2 is 2x+10 angle 4 is 4x+80 solve for x

Airida [17]

Answer:

Step-by-step explanation:

Angle 2 is 2x+10

angle 4 is 4x+80

and from the figure we can understand that when we add these 2 equations

We get

6x+ 90= 180

6x = 180 - 90= 90

6x= 90

x = 90 ÷ 6 = 15

answer = 15

7 0

2 years ago

Can anyone tell me what x equals in this scenario. 3/4x=2x-5

Dvinal [7]

Hey There!

The answer to your problem is $x=4$

Subtract 2x from both sides

$3/4x-2x=2x-5-2x$

$-5/4x=-5$

Multiply both sides by 4/(-5)

$(4/-5)*(-5/4)$ x $=(4/-5)*(-5)$

3 0

3 years ago

A professor at a local university noted that the exam grades of her students were normally distributed with a mean of 73 and a s

Umnica [9.8K]

Answer:

88.51 is the minimum score needed to receive a grade of A.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 73

Standard Deviation, σ = 11

We are given that the distribution of exam grades is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.0793.

$P( X \geq x) = P( z \geq \displaystyle\frac{x - 73}{11})=0.0793$

$= 1 -P( z \leq \displaystyle\frac{x - 73}{11})=0.0793$

$=P( z \leq \displaystyle\frac{x - 73}{11})=0.9207$

Calculation the value from standard normal z table, we have,

$P(z \leq 1.410) = 0.9207$

$\displaystyle\frac{x - 73}{11} = 1.410\\x =88.51$

Hence, 88.51 is the minimum score needed to receive a grade of A.

3 0

3 years ago

evaluate the impact of risky behaviour on your personal expectations in relation to your career help with maths too

timofeeve [1]

Step-by-step explanation:

In triangle ADE:

sum of all angles is 180.

3x-10+58+42=180

3x+90=180

3x=180-90

3x=90

x=90/3

x=30

As line DA and CB are parallel:

angle D=angle C

angle y=58

In angle BCE, sum of angles is 180.

z+58+42=180

z+100=180

z=180-100

z=80

4 0

3 years ago