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Korolek [52]
2 years ago
7

A line passes through the points (- 4, 7) and (5, - 8) . What is the slope of the line?

Mathematics
2 answers:
Fofino [41]2 years ago
7 0
C is the correct answer. -5/3 Correct. Step by step explain
Nitella [24]2 years ago
4 0

Answer:

c is the right answer ok....

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For 3x2 - 4x+ 1, match the following:
Usimov [2.4K]

Constant: 1

Degree: 2

Coefficient : 3 and -4

Algebraic expression: 3x^2-4x + 1

Variable : x

<em><u>Solution:</u></em>

<em><u>Given expression is:</u></em>

3x^2-4x + 1

We have to find the constant, degree, coefficient , algebraic expression and varibale

<h3><u>Constant:</u></h3>

In Algebra, a constant is a number on its own, or sometimes a letter such as a, b or c to stand for a fixed number like 1, 2

In the given expression, constant is 1

<h3><u>Degree:</u></h3>

The largest exponent the variable has in a polynomial with one variable

In the given expression, largest exponent is 2

Thus degree of polynomial is 2

<h3><u>Coefficient:</u></h3>

The coefficients are the numbers that multiply the variables or letters

In 3x^2-4x + 1 , coefficients are 3 and -4

<h3><u>Algebraic expression:</u></h3>

An algebraic expression is a mathematical expression that consists of variables, numbers and operations.

Here the algebraic expression is:

3x^2-4x + 1

<h3><u>Variable:</u></h3>

The letters x, y, and z are common generic symbols used for variables.

Thus the variable in given expression is x

3 0
2 years ago
Two samples each of size 25 are taken from independent populations assumed to be normally distributed with equal variances. the
NeTakaya

n_1=25, n_2=25\\ \bar{X_1}=35.5, \bar{X_2}=33\\ s_1=3, s_2=4

Pooled Combined Variance s_p=12.5

Test Statistic:

t=\frac{\left(\bar{X_1}-\bar{X_2}\right)}{s_p\sqrt{\frac{1}{n_1}+\frac{1}{n_2}}}

t=\frac{\left(35.5-33\right)}{12.5\sqrt{\frac{1}{25}+\frac{1}{25}}}

\left|t\right|=0.01414

Degrees of freedom = n_1+n_2-2=25+25-2=48

\alpha =0.05

t-Critical =t_{\alpha /2, n_1+n_2-2}=t_{0.025, 48}=-2.0206 \\Table value=|t|=2.0206\\|t|=2.0206

The table value is greater than the calculated value.

Thus we accept H0.

8 0
3 years ago
Ebony uses unit cubes to build the rectangular prism below.
exis [7]

Answer:

24

Step-by-step explanation:

The length is 4, the width is 2, and the height is 3.

V=lwh=(2)(3)(4)=24

7 0
1 year ago
Math question, please help!
valkas [14]
The answer is a

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a
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a
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8 0
2 years ago
Find the slope of the line (-1,-4) , (-4,2)
Feliz [49]
Rise = -6
Run = 3

-6/3 = -2

Slope = -2

4 0
3 years ago
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