1 year ago

54 equals 9 more than a number t .

Mathematics

1 answer:

aleksandr82 [10.1K]1 year ago

6 0

Answer:

t=45

Step-by-step explanation:

54=t+9

54-9=t

t=45

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butalik [34]

ANSWER

The correct answer is option B

EXPLANATION

When we analyse carefully we can see that PQR is mapped on to P'Q'R' by the rule

$(x,y)\rightarrow (-x,y)$

$P(1,4)\rightarrow P'(-1,4)$

$Q(2,2)\rightarrow Q'(-2,2)$

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That is to say the x-coordinates are negated. Hence y-axis is the mirror line.

Since reflection is a rigid motion, the two triangles are congruent. That means the two triangles PQR and P'Q'R' are equal in all respect.

See graph in attachment.

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IRINA_888 [86]

For this case we have the following equation:
$7.4x + 4.1 (2x - 4) = -2.3 (x - 6) - 21.6
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Step 1 of the solution is to make the distributive property.
We have then:
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The step is to combine similar terms. Caleb wrote: $7.4x + 8.2x - 16.4 = -2.3x + 35.4
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He wrongly combined the similar terms on the right side of the equation.
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