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3 years ago

Consider these two triangles. Triangle A'B'C' is the dilated figure with a scale factor of 3.

Mathematics

2 answers:

Sergio [31]3 years ago

6 0

Answer: answers r 1,2,4 or a,b,d

Step-by-step explanation: i got it right on e d g e n u i t y

RUDIKE [14]3 years ago

3 0

Answer:

the correct answer is abd

Step-by-step explanation:

got it rt on edge

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A line passes through the points (2, –2) and (–6, 2). The point (a, –4) is also on the line. What is the value of a?

Minchanka [31]

First, we need to find the slope:
m=rise/run OR
$m= \frac{y_2-y_1}{x_2-x_1}$
m=(2+2)/(-6-2)
m=4/-8
m=-1/2

second we need to find the equation for the line using point-slope form:
$y-y_1=m(x-x_1)$

y-(-2)=-(1/2)(x-2)
$y+2= -\frac{1}{2}x+1$
$y=- \frac{1}{2}x-1$

to find "a" we plug in the given y value and solve for x (in this case x=a):

$-4=- \frac{1}{2}x-1$
$-3=- \frac{1}{2} x$
$-3(-2)=(- \frac{1}{2} x)( -2)$
$6=x$

so, a=6 and the point becomes (6,-4)

8 0

3 years ago

In hopes of encouraging healthier snacks at school, Leah brought in a tray of carrot sticks

aleksandr82 [10.1K]

Answer:

40 % of the snacks were carrot sticks.

Step-by-step explanation:

Total number of carrot sticks in lunch = 18

Total number of apple slices in lunch = 27

So, Total Snacks in the Lunch = Carrot Sticks + Apple Slices

= 18 + 27 = 45

Now, $\textrm{Percentage of Carrot Sticks} = \frac{\textrm{The number of Carrot sticks in lunch}}{\textrm{Total snacks in the lunch}} \times 100$

= $\frac{18}{45} \times100 = 40$

⇒Percentage of Carrot Sticks = 40%

Hence, 40 % of the snacks were carrot sticks.

6 0

3 years ago

5. At a classroom costume party,

Alenkasestr [34]

The required simplified value of b + g is 21.

Given that,

At a classroom costume party, the average age of the b-boys is g, and the average age of the g girls is b.
The average age of everyone at the party (all these boys and girls, plus their 42- year-old teacher) is b+g,

<h3>What is average?</h3>

The average of the values is the ratio of the total sum of values to the number of values.

Here,

The average age of the b-boys is g.
The average age of the g-girls is b.
The average age of everyone at the party (all these boys and girls, plus their 42-year-old teacher) is b+g,

Now,
average of n = 3 (b , g , b+g)
Average = g + b + 42 / 3
b + g = (b + g + 42 ) / 3
3b + 3g = b + g + 42
3b - b + 3g - g = 42
2b + 2g = 42
2 (b + g) = 42
b + g = 21

Thus, the required simplified value of b + g is 21.

Learn more about average here:

brainly.com/question/24057012

#SPJ2

6 0

2 years ago

Read 2 more answers

Use multiplication to check 3 divided by 1/4

pochemuha

Answer:

Step-by-step explanation:

Dividing by a fraction is equivalent to multiplying by its reciprocal.

$\frac{3}{\frac{1}{4}}=3(4)=12$

6 0

2 years ago

I need help on the last part!

stellarik [79]

Answer:

0; (0, 0); 144; (3, 144)

Step-by-step explanation:

Y = distance (m)

X = time (hr)

X = 48x

If a car travels for 0 hours, it will travel __ mile(s).

y = 48x

Plug in 0 hours for x (time in hours)

y = 48(0)

Any number mutliplied by 0 equals 0

y = 0

If a car travels for 0 hours, it will travel 0 miles. This means it will pass through the point (0, 0).

(0, 0) limits our options to graphs B and D

Car travels 144 miles in 3 hours

To find how many miles it travels in 1 hour, divide 144 miles by 3 hours

144 ÷ 3 = 48

In 1 hour, a car travels 48 miles

If 48 × 3 = 144, then 48 × 4 = ?

48 × 4 = 192

When looking at graph D, there are 4 lines above 0

Counting by 48, it perfectly fits 192 by the fourth line

From (0, 0), if we move 3 units to the right we can find the third vertical line intersecting

Since the lines are counted by 48 and we are looking at the third line: 48 × 3 = 144

Use the slope to move 3 units to the right of the origin and 144 unit(s) up to the find the point (3, 144) that can be used to graph the relationship

7 0

3 years ago

Read 2 more answers