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3 years ago

Which transformations result in a congruent figure

Mathematics

2 answers:

fgiga [73]3 years ago

4 0

Rotations, translations and reflections all result in congruent figures. Dilations DO NOT result in congruent figures.

VMariaS [17]3 years ago

4 0

Turn, Flip, and Slide or glide

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Use any method to solve the equation. If necessary, round to the nearest hundredth.7x2 − 16x = 8

Semmy [17]

7x^2 - 16x - 8 = 0

using the quadratic formula x = [ -(-16)+/- sqrt((-16^2 - 4*7-8] / 2*7

= (16 +/1 sqrt 480) / 14

= 2.71, -0.42 to nearest hundredth

4 0

3 years ago

(3x-4y)^2-(3x-4y)(3x+4y)

zheka24 [161]

Answer:

$-24xy + 32y^2$

Step-by-step explanation:

Hello!

We can use the special binomial product formulas:

$(a + b)^2 = a^2 + 2ab + b^2$
$(a + b)(a - b) = a^2 - b^2$

<h3>Simplify</h3>

$(3x - 4y)^2 - (3x - 4y)(3x + 4y)$
$(9x^2-24xy+16y^2) - (9x^2 - 16y^2)$
$9x^2 - 9x^2 - 24xy + 16y^2 + 16y^2$
$-24xy + 32y^2$

The simplified form is $-24xy + 32y^2$

6 0

1 year ago

It is 20 minutes before 8:00 am in the morning. What time is this?

Masja [62]

It is 7:40am in the morning

5 0

3 years ago

At oceanside middle school 110 students tried out for the football team only 80% of the students that tryout make the team how m

Olenka [21]

Step-by-step explanation:

answer is 22 students in the team

how do u get it? 

you know it is 80% of the students went for try out so you do 100% - 80% give you 20% students the number of students in the team already. so you do 20 / 100 x 110 students which already in the whole school over 1 which would give it 22

3 0

2 years ago

The PTO is selling raffle tickets to raise money for classroom supplies. A raffle ticket costs $3. There is 1 winning ticket out

matrenka [14]

Answer:

A) 0.54

B) 4.32

C) 2.4

D) 336

Step-by-step explanation:

A)Expected value (you) = (84 × 3) × $\frac{1}{140}$ × (0.3)× $\frac{139}{140}$

= 0.54

B) Expected value (you) 8 tickets = 0.54 × 8

= 4.32

C) Expected value ( for PTO) = ( 3 - 84) × $\frac{1}{140}$ + ( 3 - 0 ) × $\frac{139}{140}$

= 2.4

D) For 140 raffle tickets = 2.4 × 140

= 336

4 0

2 years ago