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3 years ago

50 POINTS. PLEASE HELP!!! NEED THIS DINE BY 4:00 PM!!!!

Mathematics

2 answers:

malfutka [58]3 years ago

4 0

Hey fellow Army.

So because JKLM=PQRS, that means that all the line segments are equal.

JK=PQ=6.4

KL=QR=13

LM=RS=9

MJ=SP=18

Okay now for the graph.

It was first reflected over the y axis, and then shifted over vertically by 9 .

Hope this helps. Have a good day!

Aleksandr [31]3 years ago

3 0

Answer:

for WADE part it was reflected over y axis and a vertical shift of 9

Answer:

PQ= 6.4 m

QR= 13 m

RS= 9 m

PS= 18m

because if it is congruent it means identical in form in the same order as the original

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16 gallons

Step-by-step explanation:

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3 years ago

Jacob Lee is a frequent traveler between Los Angeles and San Diego. For the past month, he wrote down the flight times in minute

valkas [14]

Solution :

We know that

$H_0: \mu_1 = \mu_2=\mu_3$

$H_1 :$ At least one mean is different form the others (claim)

We need to find the critical values.

We know k = 3 , N = 35, α = 0.05

d.f.N = k - 1

= 3 - 1 = 2

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= 35 - 3 = 32

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$\overline X_1 =50.5$ $\overline X_2 =50.07143$ $\overline X_3 =55.71429$

$s_1^2=19.96154$ $s_2^2=14.68681$ $s_3^2=36.57143$

The grand mean or the overall mean is(GM) :

$\overline X_{GM}=\frac{\sum \overline X}{N}$

$=\frac{51+51+...+49+49}{35}$

= 52.1714

The variance between the groups

$s_B^2=\frac{\sum n_i\left( \overline X_i - \overline X_{GM}\right)^2}{k-1}$

$=\frac{\left[14(50.5-52.1714)^2+14(52.07143-52.1714)^2+7(55.71426-52.1714)^2\right]}{3-1}$

$=\frac{127.1143}{2}$

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The Variance within the groups

$s_W^2=\frac{\sum(n_i-1)s_i^2}{\sum(n_i-1)}$

$=\frac{(14-1)19.96154+(14-1)14.68681+(7-1)36.57143}{(14-1)+(14-1)+(7-1)}$

$=\frac{669.8571}{32}$

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The F-test statistics value is :

$F=\frac{s_B^2}{s_W^2}$

$=\frac{63.55714}{20.93304}$

= 3.036212

Now since the 3.036 < 3.295, we do not reject the null hypothesis.

So there is no sufficient evidence to support the claim that there is a difference among the means.

The ANOVA table is :

Source Sum of squares d.f Mean square F

Between 127.1143 2 63.55714 3.036212

Within 669.8571 32 20.93304

Total 796.9714 34

3 0

3 years ago

Look at the picture for the question please show work.

lukranit [14]

$A=\dfrac{1}{2}ah\\
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h=14 \text{ mm}\\\\
A=\dfrac{1}{2}\cdot25\cdot14\\
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