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3 years ago

Find a value of k for which the following system has only one solution:

Mathematics

1 answer:

densk [106]3 years ago

4 0

K(cannot equal (the = sign with the line through it) -2
k(=/)-2

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When solving the equation, which is the best first step to begin to simplify the equation?

olasank [31]

Answer:

hope that helps!

Step-by-step explanation:

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3 years ago

Find the sum and express it in simplest form. (ab+4a-6)+(ab+6)

riadik2000 [5.3K]

= 2ab + 4a + 6 - 6

= 2ab + 4a

you can factor this to 2a(b + 2)

3 0

4 years ago

Read 2 more answers

Which expression is equivalent to 5y^3/(5y)^-2

Serggg [28]

Answer:

5^3 y^5

125 y^5

Step-by-step explanation:

5y^3/(5y)^-2

Distribute the exponent in the denominator

5y^3/(5 ^-2 y^-2)

A negative exponent in the denominator brings it to the numerator

5y^3 5 ^2 y^2

Combine like terms

5 * 5^2 * y^3 5^2

We know that a^b * a^c = a^(b+c)

5^(1+2) * y^( 3+2)

5^3 y^5

125 y^5

6 0

3 years ago

The area of a square rug is 169ft^2. How long is each side of the rug?

jek_recluse [69]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{13 \: ft}}}}}$

Step-by-step explanation:

$\star{ \sf{ \: Area \: of \: a \: square \: rug \: ( \: A \: ) \: = \: 169 \: {ft}^{2} }}$

$\sf{ \underline{Finding \: the \: length \: of \: a \: square \: ( \: l \: )}}$

$\boxed{ \sf{Area \: of \: a \: square \: = \: {l}^{2} }}$

$\hookrightarrow{ \sf{169 = {l}^{2} }}$

$\hookrightarrow{ \sf{ {l}^{2} = 169}}$

$\hookrightarrow{ \sf{ \sqrt{ {(l)}^{2} } = \sqrt{169} }}$

$\hookrightarrow{ \text{length \: = \: 13 \: ft}}$

$\text{Hope \: I \: helped!}$

$\text{Best \: wishes !!}$

~ $\text{TheAnimeGirl}$

6 0

3 years ago

Which expression is equivalent to the expression (7×2)^7

ddd [48]

Answer:

9^7

Step-by-step explanation:

7*2=9

7 0

3 years ago