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2 years ago

The letter tiles shown below are in a bag. Without looking I am going to draw one tile.

Mathematics

1 answer:

PilotLPTM [1.2K]2 years ago

3 0

Answer:D

Step-by-step explanation:

8 in total. 2 are Blue A

Not drawing blue A

6/8

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Enter the appropriate value to answer the question or solve the problem.

Licemer1 [7]

Answer:

slope 2.500

x intercept 1.80000

m intercept 4.50000

Step-by-step explanation:

step 1:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

5*(x+4)-(-2*(-4-m)+3)=0

step 2:

-4 - m = -1 • (m + 4)

(5•(x+4))-((0--2•(m+4))+3) = 0

step 3:

5 • (x + 4) - (2m + 11) = 0

step 4:

5x - 2m + 9 = 0

step 5:

Solve 5x-2m+9 = 0

3 0

2 years ago

As with simple linear regression, we desire the residuals to (select all that apply) have large variance. have constant variance

dimulka [17.4K]

As with simple linear regression, we desire the residuals to:

Have constant variance.
Have a mean close to 0.

<h3>What is a simple linear regression?</h3>

It should be noted that a simple linear regression simply means a model that describes the relationship between a dependent variable and an independent variable.

In this case, as with simple linear regression, we desire the residuals to have constant variance and have a mean close to 0.

Learn more about regression on:

brainly.com/question/25987747

5 0

1 year ago

Use an algebraic approach to solve the problem.

qaws [65]

Answer:

Her first exam score was a 78, her second exam score was a 89, and his third exam score was a 94.

Step-by-step explanation:

Use the formula for the mean: sum of elements / number of elements

Let x represent her first exam score.

Her second exam score can be represented by x + 11, since it was 11 points better than her first.

Her third exam score can be represented by (x + 11) + 5, since it was 5 points better than her second.

Plug in all of these expressions into the mean formula. Plug in 87 as the mean, and plug in 3 as the number of elements (since there are 3 scores):

mean = sum of elements / number of elements

87 = ( (x) + (x + 11) + (x + 11) + 5 ) / 3

Add like terms and solve for x:

87 = (3x + 27) / 3

261 = 3x + 27

234 = 3x

78 = x

So, her first score was a 78.

Find her second score by adding 11 to this:

78 + 11 = 89

Find her third score by adding 5 to the second score:

89 + 5 = 94

Her first exam score was a 78, her second exam score was a 89, and his third exam score was a 94.

6 0

2 years ago

Pythagoras question plz help

motikmotik

From the two right triangles, you can write the following equations using the Pythagorean theorem. Let's call that shared leg in the middle "y"

y^2 + b^2 = a^2
y^2 + c^2 = x^2

y^2 + b^2 = a^2
re-write this to get "y" alone for substitution.
y^2 = a^2 - b^2
substitute (a^2 - b^2) for y^2 in the other equation. y^2 + c^2 = x^2

a^2 - b^2 + c^2 = x^2

Now put in the values given for a,b,c to solve for x

(7.1)^2 - (5.6)^2 + (5.7)^2 = x^2
51.54 = x^2
square root
7.2 = x

6 0

2 years ago

How do i convert 91/10 to a mixed number

geniusboy [140]

The fraction 91/10 is equivalent1 to 9 1/10.
This fraction is a IMPROPER FRACTION once the absolute value of the top number or numerator (91) is greater than the absolute value of the bottom number or denomintor (10). So, the equivalent fraction is a MIXED NUMBER which is made up of a whole number (9) and proper fraction (1/10).
The fraction 91/10 is equal to 91÷10 and can also be expressed in decimal form as 9.1.

7 0

2 years ago