All categories

3 years ago

I need help fast thanks

Mathematics

1 answer:

Galina-37 [17]3 years ago

7 0

Answer:

In the explanation

Step-by-step explanation:

a) Multiply the second equation by 2, subtract both lines. You get x = -3. Plug this in to get y, y = -2

b) Multiply the first equation by 2, add both lines. You get x = 8. Plug this in to get y, y = -3

c) Multiply the first equation by 5, subtract both lines. You get y = 1. Plug this in to get x, x = -3

d) Multiply the first equation by 2 and the second one by 3, add both lines. You get x = 1. Plug this in to get y, y = 4

Hope this helps!

You might be interested in

A particle is moving along a projectile path where the initial height is 96 feet with an initial speed of 16 feet per second. Wh

leonid [27]

Answer:

The maximum height of the particle is 100 ft

A is correct

Step-by-step explanation:

A particle is moving along a projectile path where the initial height is 96 feet with an initial speed of 16 feet per second.

The standard equation of parabolic projectile.

$h(t)=-16t^2+v_0t+h_0$

where,

$v_0=16\ ft/s$

$h_0=96\ ft$

$h(t)=-16t^2+16t+96$

So, we get the parabolic equation of path.

The maximum value at vertex.

$t=-\dfrac{b}{2a}$

$t=-\dfrac{16}{-32}=\dfrac{1}{2}$

Maximum at t=0.5

$h(0.5)=-16(0.5)^2+16(0.5)+96$

$h(0.5)=100$

Hence, The maximum height of the particle is 100 ft

4 0

3 years ago

Read 2 more answers

Please help, really don’t know

Rama09 [41]

Answer:

2 hours and 45 minutes

Step-by-step explanation:

5 0

3 years ago

Multiply (apex)

Anni [7]

Answer: D

(2x)^2 + 2(3•2x) + 3^2

4x^2 + 2(6x) + 9

4x^2 + 12x + 9

3 0

3 years ago

35 km 21 km b What is the length of the missing leg? b = kilometers

marta [7]

Answer:

28 km

Step-by-step explanation:

One leg = 35 km

Second leg = 21 km

We need to find the length of the missing leg. Using Pythagoras theorem, we can find it.

Hypotenuse² = base² + perpendicular²

$x=\sqrt{35^{2}-21^{2}}\\\\x=28\ km$

So, the length of the missing leg is equal to 28 km.

3 0

3 years ago

Q(x)=12x−3; q(x)=−4 What is the value of x.

Contact [7]

Answer:

12x=-1

Step-by-step explanation:

if q(x)=4, plug -4 because that equals -4.

-4=12x-3

add -3 to each side

-1=12x

7 0

3 years ago