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2 years ago

If x = 2 and y = -3, what is the value of 2x^2−3xy−2y^2 HELPPP

Mathematics

1 answer:

oksano4ka [1.4K]2 years ago

8 0

Answer:

Step-by-step explanation:

2(2)^2‒3(2*‒3)‒2(‒3)^2

2*4‒3(‒6)‒2(9)

8‒(‒18)‒18

8+18‒18

26‒18

i think it is easy to understand &i hope it will helps you

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A rectangle has the

SVEN [57.7K]

Answer:

15.5 inches

Step-by-step explanation:

Length of rectangle = 22 inches
Perimeter = 75 inches

To calculate : Width of the rectangle.

★ Perimeter of rectangle = 2( l + w )

→ 75 = 2(22 + w)

→ 75 = 44 + 2w

→ 75 – 44 = 2w

→ 31 = 2w

→ 31 ÷ 2 = w

→ 15.5 inches = Width

Therefore, width of the rectangle is 15.5 inches.

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3 years ago

Find the equation of the line Use exact numbers y= x+

guapka [62]

Answer:

I can't you didn't give the names of points on the line

Step-by-step explanation:

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3 years ago

I need help please.

lorasvet [3.4K]

Answer:

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3 years ago

A person of height 1.6m up to the eye level is standing at a point 2m away from the bank of the river and found an angle of elev

natima [27]

Step-by-step explanation:

tan30° = Height of person / (Distance away from river bank + river's width) = 1/√3.

Therefore 1.6m / (2m + x) = 1/√3

By cross multiplication, 1.6√3 = 2 + x.

Hence, x ≈ 0.77m.

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3 years ago

Jake has five cats and then he finds ten more cats how many does jake have after he loses 11 cats

AleksandrR [38]

jake has 5 cats

then he finds 10 cats

jake now has 5+10 = 15 cats

now he loses 11 cats

15 -11 =4

jake now has 4 cats

8 0

3 years ago

Read 2 more answers