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3 years ago

Use the commutative property to find the unknown number in the equation 35x70=mx35

Mathematics

2 answers:

VashaNatasha [74]3 years ago

8 0

- 35 and 70 ........................

artcher [175]3 years ago

4 0

You have to subtract 35 and 70 and you will get the answer

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Can someone help please?

DedPeter [7]

Answer:

h>9/2

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Find the slope between the points (-3, -2) and (5, 4) (type in integer or reduced fraction you found only)

DiKsa [7]

Answer:

The slope is: $\frac{3}{4}$

Step-by-step explanation:

The equation for slope is:

$m=\frac{y_{2}- y_{1} }{x_{2} -x_{1} }$

Point 1: -3= $x_{1}$ , -2= $y_{1}$

Point 2: 5= $x_{2}$ , 4= $y_{2}$

4-(-2)=6

5- (-3)=8

6/8=3/4

4 0

3 years ago

Data accumulated by the National Climatic Data Center shows that the average wind speed in miles per hour for St. Louis,Missouri

Marat540 [252]

Answer:

The value is $\sigma = 8.5$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 9.7$

The proportion is $P(X >x) = 0.2245$

The value considered is $x = 11.6$

Generally given that the speed measurement is normally distributed we have that

$P(X > 11.6) = P(\frac{ X - \mu }{ \sigma } > \frac{11.6 - 9.7}{ \sigma } ) = 0.2245$

Generally

$\frac{X - \mu}{ \sigma } = Z(The \ z -score \ of \ X )$

$P(X > 11.6) = P(Z> \frac{11.6 - 9.7}{ \sigma } ) = 0.2245$

Hence

$\frac{ 11.6 - 9.7}{ \sigma} = 0.2245$

$\sigma = 8.5$

6 0

3 years ago

Find a solution to the following system of equations. -3x+3y=-9 -3x+y=7

V125BC [204]

Answer:

(-5, -8)

Step-by-step explanation:

-3x+3y=-9

-3x+y=7

----------------

simplify -3x+3y=-9 into x-y=3

----------------------------------------

y=x-3

-3x+y=7

------------

-3x+(x-3)=7

-3x+x-3=7

-2x-3=7

-2x=7+3

-2x=10

x=10/-2=-5

y=-5-3=-8

x=-5, y=-8

3 0

3 years ago

What is the equation of a line in slope intercept form that is perpendicular to y=2/3x+2 and passes through the points (-2,2)? H

JulijaS [17]

Answer:

$y = -\frac{3}{2}x -1$

Step-by-step explanation:

Given

Perpendicular to $y = \frac{2}{3}x + 2$

Pass through $(-2,2)$

Required

Determine the line equation

First, we need to determine the slope of $y = \frac{2}{3}x + 2$

An equation is of the form:

$y = mx + b$

Where

$m = slope$

In this case:

$m = \frac{2}{3}$

Next, we determine the slope of the second line.

Since both lines are perpendicular, the second line has a slope of:

$m_1 = \frac{-1}{m}$

$m_1 = \frac{-1}{2/3}$

$m_1 = -\frac{3}{2}$

Since this line passes through (-2,2); The equation is calculated as thus:

$y - y_1 = m_1(x - x_1)$

Where

$(x_1,y_1) = (-2,2)$

This gives:

$y - 2 = -\frac{3}{2}(x - (-2))$

$y - 2 = -\frac{3}{2}(x +2)$

$y - 2 = -\frac{3}{2}x -3$

Add 2 to both sides

$y - 2+2 = -\frac{3}{2}x -3 + 2$

$y = -\frac{3}{2}x -1$

8 0

3 years ago