Part A
In the boxes provided, write three equations that can be solved to
find h, the number of hours it takes James to mow each of the
three lawns. Use h and = in each equation.
Equation for Mrs. Chavez's lawn:
Equation for Mr. Ortiz's lawn:
Equation for Mrs. White's lawn:

Answer:

B

Step-by-step explanation:

Answer:

There isn't enough evidence to reject H0

Step-by-step explanation:

Null hypothesis :

H0: μ = 150

H1 : μ > 150

Decision region :

Reject Null if ;

Pvalue < α

Zstatistic = (x - μ) / (s/sqrt(n))

Zstatistic = (158 - 150) / (65/sqrt(85))

Zstatistic = 0.1135

Using the P value calculator from Zstatistic at 90% ; α = 0.10 confidence interval ; one tailed test = 0.128

Pvalue = 0.128

Since ; 0.128 > 0.10

Pvalue > α

We cannot reject H0:

Answer:

basicly the -6 is the x and the 5 is the y

but the h is 7.8

Step-by-step explanation:

Answer:

[tex]a = 0.008 * 150[/tex]

Step-by-step explanation:

Given

[tex]0.8\% * 150[/tex]

Required

Represent as an equation

Let a be the result of the equation.

So, we have:

[tex]0.8\% * 150 = a[/tex]

Express 0.8% as decimal

[tex]0.008 * 150 = a[/tex]

Rewrite

[tex]a = 0.008 * 150[/tex]

Answer:

The last one

Step-by-step explanation:

The fast reason why - all the other scenarios require 3 lines: 2 lines both parallel to a 3rd, or 2 lines cut by a transversal line, etc. The diagram only shows 2 lines. So the right answer must be the one that doesn't require a third line to be present.  :)

The longer answer why - See how angles 2 & 3 have the same style of arc? That is telling you they are of equal measure. So together they are a straight angle, 180°. And they are equal to each other, so 2x = 180° --> each one must be a 90° angle.

Wherever two lines cross, if one angle is a right angle, all 4 angles at the intersection also must be right angles, so everything is perpendicular.

Answer: Josie starts working out at 3:09

Step-by-step explanation: I found this answer by adding the workout time together.

Answer:

3:09

Step-by-step explanation:

First add the total time of the workout

20+9+7=36

then subtract the end time 3:45 with the workout time:

3:45-00:36=3:09

Check work:

3:09+00:36=3:45

Answer:

The corresponding side is JG

Step-by-step explanation:

Given

JGH similar to PMO

Required

Determine the similar side to PM

To do this, we follow the naming convention of both triangle name, since there is no attachment to support the given parameters.

So:

By comparison: The corresponding side is JG

Answer:

B aka JG

Step-by-step explanation:

right on edge

Answer:

9 + 9 + 3 + 3 = 24

P = 24 cm

9 x 3 = 27

A = 27 square cm

(I think those are the answers, hope it helps <3 )

Answer:

5:6 is greater than 3:4.

Answer:

Step-by-step explanation:

Rearrange x+2y=-6 to solve for x:

x = -2y-6

substitute -2y-6 for x into the second equation:

6x + 2y = 4

6(-2y-6) + 2y = 4

-12y-36 + 2y = 4

-10y  = 40

y  = -4

x = -2y-6 = 2

(x,y) = (2,-4)

The solution for the system of equations is (2,-4).

The given system of equations are x + 2y = -6-----(1) and 6x + 2y = 4-----(2).

To solve a system of equations using substitution:

Now, rearrange x+2y=-6 to solve for x:

So, x = -2y-6

Substitute -2y-6 for x into the second equation 6x + 2y = 4.

That is, 6(-2y-6) + 2y = 4

⇒-12y-36 + 2y = 4

⇒-10y = 40

⇒y = -4

By substituting y = -4 in x = -2y-6 we get x=2.

Therefore, the solution for the system of equations is (2,-4).

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Answer:

-4+7h

Step-by-step explanation:

Answer:

9h-4

Step-by-step explanation:

8+5h-2+h-10+3h

-4+5h+h+3h

Answer:

[tex]Mean = 48.6364[/tex]

[tex]s^2 = 331.8545[/tex] -- Sample Variance

[tex]s = 18.2169[/tex] --- Sample Standard Deviation

Step-by-step explanation:

Given

[tex]n = 11[/tex]

[tex]Data: 24, 41 ,25 ,68 ,53 ,83 ,43 ,63 ,56 ,34 ,45[/tex]

Solving (a): The sample mean

[tex]Mean = \frac{\sum x}{n}[/tex]

So:

[tex]Mean = \frac{24 +41 +25 +68 +53 +83 +43 +63 +56 +34+ 45}{11}[/tex]

[tex]Mean = \frac{535}{11}[/tex]

[tex]Mean = 48.6364[/tex]

Solving (b): Sample variance (s^2)

This is calculated as:

[tex]s^2 = \frac{\sum (x - \bar x_i)^2}{n - 1}[/tex]

Where:

[tex]\bar x = 48.6364[/tex]

So:

[tex]s^2 = \frac{(24 -48.6364)^2 +(41 -48.6364)^2 +......................+( 45 -48.6364)^2}{11-1}[/tex]

[tex]s^2 = \frac{3318.54545456}{10}[/tex]

[tex]s^2 = 331.8545[/tex]

Solving (c): Sample Standard Deviation (s)

This is calculated as:

[tex]s = \sqrt {s^2[/tex]

[tex]s = \sqrt{331.8545[/tex]

[tex]s = 18.2169[/tex]

Answer: 25.0

Step-by-step explanation:

25

Answer:

25

Step-by-step explanation:

0.06 rounds up into the .9 which is now a 1

Answer:

? = 1.5 miles

Step-by-step explanation:

?^2 + 1.2^2 = 1.9^2

? = 1.473

The distance of bird from the ground is 1.47 miles.

A right-angled triangle is a triangle, that has one of its interior angles equal to 90 degrees or any angle is a right angle.

In the given diagram,

The distance between observer and bird = 1.9 miles,

And the distance from observer to the ground = 1.2 miles.

Let the distance of bird from ground is h miles.

To find the distance of bird from ground,

Use Pythagoreans theorem,

(1.9)² = (1.2)² + h²

3.61 = 1.44 + h²

3.61 - 1.44 = h²

2.17 = h²

h = 1.473 miles

The distance of bird from the ground is 1.47 miles.

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Answer:

2,800

Step-by-step explanation:

Just add 1,600 and 1,200 I think. I could be wrong good luck :)

Answer:false

Step-by-step explanation:because jaya is not giving her opinion she is asking for others opinions.

Answer:

She is using fame and GO TO HELL.

Step-by-step explanation:

Answer:

answer is 3 1/8

Step-by-step explanation:

In the picture is what my teacher did.

Answer:

54 word per minute

Step-by-step explanation:

yes it is true I have send u photo plz have a look

Answer:

n-20 is your answer ☺️☺️☺️

Answer:

N-20 is the answer if your trying to simplify it, if not comment on this answer and ill try to help

Step-by-step explanation:

Answer: -2/5

Step-by-step explanation:

To find the slope, we set the function use y = mx + b forms.

2x + 5y = 10

        5y = -2x + 10              Minus 2x in both side

           y = -2/5x + 10/5       Divide 5 from both side

           y = -2/5x + 2

In the y = mx + b, the m before variable x is always the slope, so -2/5 is the slope for 2x + 5y = 10.

Answer: The answer is ONE Solution

Step-by-step explanation:

A system of equations have no solution when their slopes are the same but they have different y-intercepts. When graphed, the lines cannot intersect for there to be a solution. Looking at both equations, they have different slopes and different y intercepts so you can rule "NO solution" out.

Secondly a system of equations have infinitely many solution if they both share the same slopes and y-intercepts.

Looking at both lines, they have different slopes and different y-intercepts, so you can also rule that out.

A system of equations have one solution if their slopes are different and y intercepts are also different. Looking at the two lines, we can notice that the slope and y-intercepts are all different.