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2 years ago

Which shapes are similar?

Mathematics

1 answer:

shtirl [24]2 years ago

4 0

Answer:

Step-by-step explanation:

Since the shapes are similar this means they are equal.

If the ratio is 2:1 that would mean divide each number by 2.

6/2 reduced equals 3/1 = 3

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QUICKK ANSWERR (will mark brainlist)

atroni [7]

Answer:

Jessie sold x DVDs for $3 each and then sold a board game for $12. Jessie made (select) $27 in her sales. How many DVDs did she sell?

She sold 5 DVDs

Step-by-step explanation:

3x+12=27

3x=15

x=5

5 DVDS

4 0

3 years ago

Give the discriminant of the equation 0 = −x2+6x−9 please answer

Brut [27]

Answer:

x = 3

Steps:

$- ( {x}^{2} - 6x + 9) = 0$

$- {(x - 3)}^{2} = 0$

${(x - 3)}^{2} = 0$

$x - 3 = 0$

There you go!

8 0

3 years ago

Draw and label a tape diagram to subtract 10, 20, 30

Svet_ta [14]

This isnt something I can do... But draw and label a tape diagram that goes from 0 to 30.

8 0

3 years ago

Find the average rate of change of f(x)=2x^2-7x from x=2 to x=5

m_a_m_a [10]

Answer:

Step-by-step explanation:

The average rate of change of f(x) in the close interval [ a, b ] is

$\frac{f(b)-f(a)}{b-a}$

Here [ a, b ] = [2, 5 ]

f(b) = f(5) = 2(5)² - 7(5) = 50 - 35 = 15

f(a) = f(2) = 2(2)² - 7(2) = 8 - 14 = - 6, thus

average rate of change = $\frac{15-(-6)}{5-2}$ = $\frac{21}{3}$ = 7

3 0

3 years ago

Question 2

cluponka [151]

Answer:

4:5

Step-by-step explanation:

28:35

28/7:35/7

4:5

hopefully this helps :)

4 0

2 years ago