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3 years ago

Another geometry question again!

Mathematics

2 answers:

ziro4ka [17]3 years ago

6 0

M<YZW = 63 because in an isosceles triangle, the base angles are congruent. (<X and <YZW are both base angles)

Goshia [24]3 years ago

6 0

XWZ is an isosceles triangle, so m(angle X) = m(angle Z)= 63⁰
So, m(angle Y<em>Z</em>W) = 63⁰

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The marketing manager of a large supermarket chain would like to use shelf space to predict the sales of pet food. For a random

Pavlova-9 [17]

Answer:

$m=\frac{27.75}{375}=0.074$

Nowe we can find the means for x and y like this:

$\bar x= \frac{\sum x_i}{n}=\frac{150}{12}=12.5$

$\bar y= \frac{\sum y_i}{n}=\frac{28.5}{12}=2.375$

And we can find the intercept using this:

$b=\bar y -m \bar x=2.375-(0.074*12.5)=1.45$

So the line would be given by:

$y=0.074 x +1.45$

C. = 1.45 + 0.074x

Step-by-step explanation:

The data given is:

x: 5,5,510,10,10, 15,15,15, 20,20,20

y: 1.6,2.2,1.4, 1.9, 2.4,2.6, 2.3,2.7, 2.8,2.6, 2.9, 3.1

For this case we need to calculate the slope with the following formula:

$m=\frac{S_{xy}}{S_{xx}}$

Where:

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}$

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}$

So we can find the sums like this:

$\sum_{i=1}^n x_i = 150$

$\sum_{i=1}^n y_i =28.5$

$\sum_{i=1}^n x^2_i =2250$

$\sum_{i=1}^n y^2_i =70.69$

$\sum_{i=1}^n x_i y_i =384$

With these we can find the sums:

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}=2250-\frac{150^2}{12}=375$

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}=384-\frac{150*28.5}{12}=27.75$

And the slope would be:

$m=\frac{27.75}{375}=0.074$

Nowe we can find the means for x and y like this:

$\bar x= \frac{\sum x_i}{n}=\frac{150}{12}=12.5$

$\bar y= \frac{\sum y_i}{n}=\frac{28.5}{12}=2.375$

And we can find the intercept using this:

$b=\bar y -m \bar x=2.375-(0.074*12.5)=1.45$

So the line would be given by:

$y=0.074 x +1.45$

C. = 1.45 + 0.074x

8 0

3 years ago

Ally and Anne went to the movies. They each purchased a drink. They also bought one popcorn and one veggie cup to share. Each wo

nadezda [96]

Jew and own downnejfnej

8 0

4 years ago

Read 2 more answers

Jayden bought 24 juice packs for $7.20 tia bought 6 juice packs for $2.70 which statement describes the difference in uint price

netineya [11]

Answer:

The difference in unit prices of Jayden and Tia’s pack is $0.15

Step-by-step explanation:

Here in this question, we are interested in writing a statement describing the unit prices of both purchases.

For Jayden, 24 pack cost $7.20, thus one pack will cost 7.20/24 = $0.30

For Tia, the united price will be 2.70/6 = $0.45

So the difference in the unit prices of both will be $0.45-$0.30 = $0.15

8 0

3 years ago

(b)

Olenka [21]

Answer:

46student did not pass

Step-by-step explanation:

because did not pass on the lower grade

6 0

3 years ago

Help me plzzzzzz!!!!

marissa [1.9K]

5^-3 = 1/125
-5^-3 = -1/125
(-5^-3)^-1 = -125
(-5^-3)^0 = 1

8 0

4 years ago

Read 2 more answers