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2 years ago

PLSSSS HELP!!!!

Mathematics

2 answers:

Taya2010 [7]2 years ago

7 0

Answer:

The dilation is an enlargement by 3

Step-by-step explanation:

I took geometry lasy yr

sammy [17]2 years ago

3 0

Answer:

-2/-6 = 1/3 = 3

Step-by-step explanation:

The solid triangle has the points A(-6,0) B(6,5) and C(6,-6).

The dashed triangle has the points A1(-2,0) B1(2,1) and C1(2,-2)

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What are the values of a and b?

ivann1987 [24]

Answer:

Step-by-step explanation:

Small triangles are similar. Therefore, the sides are proportional

$\dfrac{a}{20}=\dfrac{20}{21}$ <em>cross multiply</em>

$21a=(20)(20)$ <em>divide both sides by 21</em>

$a=\dfrac{400}{21}$

For b, we can use the Pythagorean theorem:

$b^2=\left(\dfrac{400}{21}\right)^2+20^2\\\\b^2=\dfrac{160000}{441}+400\\\\b^2=\dfrac{160000}{441}+\dfrac{176400}{441}\\\\b^2=\dfrac{336400}{441}\to b=\sqrt{\dfrac{336400}{441}}\\\\b=\dfrac{\sqrt{336400}}{\sqrt{441}}\\\\b=\dfrac{580}{21}$

3 0

3 years ago

In the first quadrant, you start at (8, 11)

Anestetic [448]

Answer:

(11,2)

Step-by-step explanation:

(8+3,11-9)

(11,2)

8 0

3 years ago

What is the product of this binomial (2x + 4y)(x + 2y)

Anon25 [30]

2x^2+8xy+8y^2
2(x^2+4xy+4y^2)

4 0

2 years ago

If A = (10, 4) and B= (2, 19), what is the length of AB

Contact [7]

Answer:

The length of AB = 17

Step-by-step explanation:

AB = √[(10-2)^2 + (4-19)^2]

AB = √(64 + 225)

AB = √289

AB = 17

8 0

3 years ago

HELP ASAP PLZ PLZ PLZ I GIVE BRAINLIEST

Yuki888 [10]

Answer:

Step-by-step explanation:

We can see that the base TA is 4, and the second base RS is 2. We can see that the height is 4. The area of a trapezoid is:

$A=\frac{h(b_1+b_2)}{2}$

Using this, we can substitute, and get:

$A=\frac{4\cdot(2+4)}{2} = \frac{24}{2} = 12$

Hope it helps!!

5 0

3 years ago