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3 years ago

Someone please answer my question if you know the answer

Mathematics

1 answer:

lawyer [7]3 years ago

3 0

Answer:

8+6=14

Step-by-step explanation:

2+2+2 (the 3 angles on bottom)+ 2 (the bottom)=8

3+3=6

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Question 27: Please help, which rigid motion could be used to show that triangle ABC is congruent to triangle BAD?

m_a_m_a [10]

Answer:

i think is B

explanation:

reflection across a vertical line

3 0

4 years ago

Read 2 more answers

If f(x)=2x^2+2 and g(×)=x^2-1 find (f-g)(x)

Elza [17]

$f(x)=2x^2+2\qquad\qquad g(x)=x^2-1\\\\\\
\big(f-g\big)(x)=f(x)-g(x)=(2x^2+2)-(x^2-1)=2x^2+2-x^2+1=\\\\=\boxed{x^2+3}$

Answer B)

8 0

3 years ago

The width of a rectangle is 6 kilometers less than twice its length. if its area is 108 square kilometers, find the dimensions

Art [367]

Hi there!

Answer:
length = 9 kilometres
Width = 12 kilometres

Let's solve this problem step by step!
To find our answer we need to set up and solve an equation.

Let the length of the rectangle be represented by x.
The width of the rectangle can therefore be expressed by 2x - 6.

The area of a rectangle can be found by using the formula:
A = width × length

Plug in the data from the formula
A = x (2x - 6).

Simplify using rainbow technique.
$x(2x - 6) = 2 {x}^{2} - 6x$

Now we've found the simplified expression that expresses the area of the rectangle. Therefore, we can now set up and start solve the equation.

$2 {x}^{2} - 6x = 108$
Subtract 108

$2 {x}^{2} - 6x - 108 = 0$
Divide by 2.

${x}^{2} - 3x - 54$
$(x - 9)(x + 6) = 0$
Rule AB = 0, gives A is 0 or B is 0.

$x - 9 = 0 \\ x = 9 \\ \\ x + 6 = 0 \\ x = - 6$

The length of the rectangle, which was represented by x, must be 9 (since it cannot be a negative number).

Length
$x = 9$
Width
$2x - 6 = 2 \times 9- 6 = 18 - 6 = 12$

Answer:
length = 9 kilometres
Width = 12 kilometres

~ Hope this helps you!

6 0

3 years ago

Please help!

s344n2d4d5 [400]

Find the scale of the known sides:

RT is similar to UW

5.4 /9 = 0.6

The smaller triangle is 0.6 times the larger one.

Multiply the length of RS to find UV:

6 x 0.6 = 3.6

The answer is A. 3.6 inches.

6 0

3 years ago

Find the x- and y-intercepts 3x+y=5

vlada-n [284]

The x - intercept is $(\frac{5}{3}, 0)$ and y - intercept is (0, 5)

<h3><u>Solution:</u></h3>

Given that : 3x + y = 5

<em><u>To find: x - intercept and y -intercept</u></em>

The x-intercept is where a line crosses the x-axis, and the y-intercept is the point where the line crosses the y-axis.

To find the x intercept using the equation of the line, plug in 0 for the y variable and solve for x

3x + 0 = 5

3x = 5

$x = \frac{5}{3}$

Therefore the x - intercept is $(\frac{5}{3}, 0)$

To find the y intercept using the equation of the line, plug in 0 for the x variable and solve for y

3(0) + y = 5

y = 5

Therefore y - intercept is (0, 5)

6 0

3 years ago