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eduard
3 years ago
8

Please help me out thank you.

Mathematics
1 answer:
frozen [14]3 years ago
6 0

Answer:

A'-4

Step-by-step explanation:

why does it turn 90

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Write three ratios equivalent to the ratio described in each situation. A collecter has 120 movie posters and 100 band posters.
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96 of then to get a ratio of 120 to 100
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If y varies directly as x, find the constant of variation if y = 5 when x = -0.1.
lisabon 2012 [21]
Y=kx......5=0.1k....k=5/0.1.....k=50
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3 years ago
Find the vertex of the graph and the axis of symmetry
ale4655 [162]
How to do the vertex is using the formula -b/2a

your a=-9 and b is -18 but it going to become +18 because you are multiplying the -(-18) which there a 1 in front the neg. you going to multiply the -9 by 2 and do 18/18 so your x= -1. You got your x, you going to put in the equation as y=-9(-1)^2-18(-1)-1 then you got your y... hope this is helpful :)
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3 years ago
K=5/9(F-32) + 273.15. Solve for F. If you have an answer please leave an explanion, but you Don't have to.
Sveta_85 [38]

K = \frac{5}{9}(F - 32) + 273.15

To cancel out the 5/9, you can either multiply everything by the denominator and divide it down, or multiply everything by the reciprocal of the fraction (\frac{9}{5}. Multiplying by the reciprocal is definitely easier if you can use a calculator:

\frac{9}{5}K = (F - 32) + 491.67

Subtract 491.67 from both sides:

\frac{9}{5}K - 491.67 = F - 32

Finish off by adding 32 to both sides:

\frac{9}{5}K - 459.67 = F

Therefore, F = \frac{9}{5}K - 459.67.

Hope this helps! :)

8 0
3 years ago
Rebecca is given two triangles, AABC and A DEF. At first glance, she thinks
vitfil [10]

Answer:

A. She can rotate AABC 90° and then compare the angles and sides.

She will see that the triangles are congruent by the Angle Side Angle theorem.

Step-by-step explanation:

Congruent is a term that implies that a thing is identical to another (having the same shape and size). For congruent triangles, they have the same shape and size; they can be tilted or rotated to be at different angles but they have the same shape and size irrespective.

The following information were given:

D - 30°, 3 cm, 65°

B - 30°, 3 cm, 65°

From this information, we can conclude that <u>the triangles are congruent based on the Angle Side Angle theorem</u>. However, because the diagram was not included, we cannot conclusively say which is the more accurate answer between Options A & B.

5 0
3 years ago
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