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3 years ago

15

(02.01 MC)

1 answer:

ELEN [110]3 years ago

8 0

Answer:

Step-by-step explanation:

The size does not change because the shape is only moving to new coordinates not growing or shrinking.

This means the shape also does not change.

When you translate a shape in geometry it means you are changing the position. But the shape will remain the same, meaning the angles remain congruent.

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Polly surveyed 850 teenagers to find out their favorite type of music. She found that 32% of the teenagers surveyed like hard ro

frosja888 [35]

Answer:

In explanation

Step-by-step explanation:

272 for part A because say you took a test out of 850 and you got a total of 272 of them right then you would of gotten a 32%

200 for 2 because if 75% of them liked pop music and 150 teenagers what the number of teenagers surveyed then that means 200 of them were surveyed because 150 out of 200 is 75%

I don't know the last one because if you had anything there only could get a 100%(im sorry for this one it's a little confusing.

Hope this helps have a great afternoon:)

7 0

2 years ago

Jika garis 4x+ay = 8 dan ay=9x + 5 saling tegak lurus,maka nilai a

barxatty [35]

We are given equations as

$4x+ay=8$

Firstly, we will write in slope intercept form of line

y=mx+b

$4x+ay=8$

Subtract both sides by 4x

$4x+ay-4x=-4x+8$

$ay=-4x+8$

now, we can divide both sides by a

$y=-\frac{4}{a} x+\frac{8}{a}$

we can find slope

so, we get

$m_1=-\frac{4}{a}$

we are given second equation as

$ay=9x+5$

Firstly, we will write in slope intercept form of line

y=mx+b

divide both sides by a

$y=\frac{9}{a} +\frac{5}{a}$

we can find slope

$m_2=\frac{9}{a}$

we are given both lines are perpendicular

so, the multiplication of their slopes must be -1

$m_1\times m_2=-1$

we can plug values

$-\frac{4}{a}\times \frac{9}{a}=-1$

now, we can solve for a

$\frac{36}{a^2}=-1$

Multiply both sides by a

$\frac{36}{a^2}\times a^2=1\times a^2$

$36= a^2$

now, we can solve for a

we get

$a=-6,a=6$ ...............Answer

4 0

4 years ago

There are 26 3rd graders in 32 4th graders going on a field trip each van can carry 10 students how many students will be in eac

Katen [24]

Answer:

There will be 10 students in each van, and only 8 in one van

Step-by-step explanation:

26 + 32 = 58

4 0

3 years ago

8. Video games are on sale this week for 20% off. The video game originally costs $42.

Phoenix [80]

Answer:

$8.4
$33.6
I= $384

Step-by-step explanation

Amount of discount: 20%= 0.20; 0.20×42= $8.4
Sale price: $42-$8.4= $33.6

For interest question, plug in the values:

P= $3200

r= 3%÷100 = 0.03

t= 4 years

Calculate:

I=Prt

= 3200×0.03×4

=$384

3 0

3 years ago

What is the greatest common factor of 20 and 12

pishuonlain [190]

Answer:

4

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers