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Sauron [17]
3 years ago
12

Explain these questions, please

Mathematics
1 answer:
harina [27]3 years ago
3 0
How I was taught: Make sure both numbers are a fraction. If not put "1" as the denominator. Multiply straight across. Simplify if you can.
You might be interested in
Help QUICKLY, will offer brainliest for correct answer
FromTheMoon [43]

Answer:

48

Step-by-step explanation:

-2(1)^2(3(1)^2 – 7(1) + 10)

-2^2(3^2 – 7 + 10)

4(9 - 7 + 10)

4(12)

48

4 0
3 years ago
Solve for k.<br> 6k - 8 = 4K + 15
Brut [27]

Hi,

Answer:

k = \frac{23}{2}

Step-by-step explanation:

Subtract 4k from both sides

6k - 4k = 2k

2k - 8 = 15

Add 8 on both sides (you want to get rid of the 8 in order to leave the k alone)

2k = 23

k = 23/2

Have a good day!

4 0
3 years ago
Read 2 more answers
What is the y-intercept of y=4x?
Vera_Pavlovna [14]

Answer:

y intercept= 0

Step-by-step explanation:

in the formula y=mx+b, m is the slope and b is the y intercept. here we are not given "b" so the y intercept it 0

3 0
3 years ago
Considera um quadrado de lado 2x e um rectângulo de comprimento x e largura x  2 . Qual é o valor de x para o qual as duas figu
ki77a [65]

Answer:

3 unidades de comprimento

Step-by-step explanation:

O perímetro é definido como a soma de todos os lados.

O perímetro de um quadrado de lado 2x é dado por:

Q=4*2x=8x

O perímetro de um retângulo de comprimento x e largura x² é dado por:

R=2x+2x^2

Para que ambos os perímetros sejam iguais:

R=Q\\8x=2x+2x^2\\x^2=\frac{6}{2}x\\ x=3

O valor de x é igual a 3 unidades de comprimento.

4 0
3 years ago
27w^2-12 how do factor this in special cases
JulsSmile [24]

Answer:

Take out the greatest common factor

The GCF is 3

3(9w^2-4)

6 0
3 years ago
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