4 years ago

Find A ∩ (B C).

Mathematics

1 answer:

Mekhanik [1.2K]4 years ago

3 0

I believe it's c. (2,3,4,5,7,8

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<img src="https://tex.z-dn.net/?f=45%3D9%5E%7B%5Csqrt%7Bx%7D%20%7D" id="TexFormula1" title="45=9^{\sqrt{x} }" alt="45=9^{\sqrt{x

timama [110]

Answer:

Step-by-step explanation:

a= b^c << === >> logb(a) = c

a b c

Convert 45 = 9^√x << === >> log9 (45) = √x

1.7324867604 = √x

3.0 = x squared both sides

I used a log calculator on the internet when a Gaggled log calculators

8 0

3 years ago

Simplify 49 to the negative 1 half power . (1 point)

tangare [24]

Anything to a negative power makes it inverse and 1/2 power is just square root.
Therefore 49^-1/2 is 1 divided by the square root of 49. The square root of 49 is 7 so the answer is 1/7.

7 0

3 years ago

Read 2 more answers

Solve the system of equations using the substitution method.

Delicious77 [7]

Answer:

$x = 14$

$y = -3$

Step-by-step explanation:

Given

$2x + 8y =4$

$x = -3y + 5$

Required

Solve

Substitute $x = -3y + 5$ in $2x + 8y =4$

$2(-3y + 5) + 8y =4$

Open bracket

$-6y + 10 + 8y =4$

Collect like terms

$-6y + 8y =4-10$

$2y =-6$

Divide both sides by 2

$y = -3$

Substitute $y = -3$ in $x = -3y + 5$

$x = -3 * -3 + 5$

$x = 9+ 5$

$x = 14$

8 0

3 years ago

I NEED HELP <br>PLEASE HELP<br>I HAVE BEEN TRYING TO FIGURE IT OUT FOR 30 MINUTES<br><br>

Ksju [112]

Answer:

Beacuse it is negative AND positve carges combined together.

Step-by-step explanation:

6 0

3 years ago

What is 18×0×12? I think it's 0.

Alex73 [517]

Answer:

Step-by-step explanation:

Anything multiplied by 0 is ALWAYS going to equal 0

3 0

3 years ago

Read 2 more answers