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3 years ago

Please help (geometry) number 11

Mathematics

2 answers:

dexar [7]3 years ago

4 0

Answer:

In the image below

Step-by-step explanation:

vampirchik [111]3 years ago

3 0

ADC=ABC by SAS fact

ADC=ABC corresponding angles of congurrent triangle

May be ot will help.

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The average mother's, father's, and son's age is 28 years. The average mother's and son's age is 23 years. The average father's

Grace [21]

Answer: son is 12 years old

Step-by-step explanation:

Let m be the age of mother, f be the age of father, and s be the age of son.

m + f + s = 28 x 3 = 84

m + son = 23 x 2 = 46

f + s = 25 x 2 = 50

m = 46 - s

f = 50 - s

we plug in m and f to the functions.

we get 46 - s + 50 - s + s = 84

96 - s = 84

-s = -12

s = 12 years old

3 0

3 years ago

Abigail is driving on a long road trip she currently has 13 gallons of gas in her car each hour that she drives her car is up 1

Damm [24]

Step-by-step explanation:

Well, if 1 gallon of gas = 1 hour then

2 hours would be 2 gallons so only 11 gallons of gas would be left in the tank and

13 hours would be 13 gallons, so 0 gallons of gas would be left in the tank

7 0

4 years ago

(TIME SENSITIVE PLEASE HELP) Use matrices to determine the coordinates of the vertices of the reflected figure. Then graph the p

Len [333]

The matrix R represents the reflection matrix for the provided vertices, and graph A represents the pre-image and the image on the same coordinate grid.

<h3>What is the matrix?</h3>

It is defined as the group of numerical data, functions, and complex numbers in a specific way such that the representation array looks like a square, rectangle shape.

We have vertices shown in the picture.

Form a matrix using the vertices:

$= \left[\begin{array}{ccc}-3&5&6\\7&3&-5\\\end{array}\right]$

To reflect over the x-axis, multiply by the reflection matrix:

$= \left[\begin{array}{ccc}1&0\\0&-1\\\end{array}\right]\left[\begin{array}{ccc}-3&5&6\\7&3&-5\\\end{array}\right]$

$\rm R= \left[\begin{array}{ccc}-3&5&6\\-7&-3&5\\\end{array}\right]$

The above matrix represent the reflection matrix.

Thus, the matrices R represents the reflection matrix for the provided vertices, and graph A represents the pre-image and the image on the same coordinate grid.

Learn more about the matrix here:

brainly.com/question/9967572

#SPJ1

4 0

2 years ago

Convert the rational number below to a decimal. Round to the

masha68 [24]

Answer:

10.33

Step-by-step explanation:

$\frac{31}{3}$ is equal to 31 divided by 3, which is 10.33333333333333333...

Rounded to the nearest hundredth we get 10.33.

Hope this helps!

5 0

4 years ago

A soccer ball is kicked into the air from the ground. If the ball reaches a maximum height of 25 ft and spends a total of 2.5 s

OLga [1]

Hello,

g=9.81m/s²= 9.81/0.3048 =32.18.. ft/s² rounded to 32

h=-g/2*t²+vt+h0
if t=0,h=0 ==>h0=0

==>h=-16*t²+vt
50 ft in 2.5s ==> 25 ft in 1.25s

25=-16*1.25²+v*1.25
==>v=50/1.25=40

Equation h=-16t²+40*t

4 0

3 years ago

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