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3 years ago

Solve the equation -6 = -9 - 3x for x

Mathematics

1 answer:

Xelga [282]3 years ago

3 0

Answer:

-6= - 9 - 3x

3x = -9 + 6

3x = - 3

Therefore x = -1

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Paige launched a ball using a catapult she built. The height of the ball (in meters above the ground) ttt seconds after launch i

agasfer [191]

Answer:

1) Factor form : $h(t)=-5t(t-8)$

2) 8 second after launch.

Step-by-step explanation:

The height of the ball (in meters above the ground) t seconds after launch is modeled by

$h(t)=-5t^2+40t$

To find the time when ball hit the ground, we need to find the factor form of the given function.

$h(t)=-5t(t-8)$

When ball hi the ground, then height of the ball from the ground is 0.

$h(t)=0$

$-5t(t-8)=0$

Using zero product property, we get

$-5t=0\Rightarrow t=0$

$t-8=0\Rightarrow t=8$

Ball hit the ground at t=0 and t=8. It means ball hit the ground in starting and 8 second after launch.

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3 years ago

ABCD is a parallelogram. Determine the length of AD. ANSWERS: A) 2.5 units B) 10 units C) 11 units D) 5 units

noname [10]

Answer:

D) 5

Step-by-step explanation:

Since 2x = x+5, we have x = 5.

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3 years ago

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Nitella [24]

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3 years ago

There are 37 cans of pinapple on each shelf at foodmart. if there are 7 shelves of pineapple, estimate the number of cans of pin

SIZIF [17.4K]

Answer:

259

Step-by-step explanation:

37x7=259 Multiply pinapple can by shelf that EZ.

5 0

3 years ago

Read 2 more answers

From her window, Carmella looks up to the top of a neighboring building at an angle of 46°. Her

Vinil7 [7]

Answer:

$270.3\ ft$

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

In the right triangle ADE

Find the value of h1

See the attached figure

h1=AD

$tan(25\°)=\frac{h_1}{180}$

Solve for h1

$h_1=(180)tan(25\°)\\h_1=83.94\ ft$

step 2

In the right triangle ABC

Find the value of h2

See the attached figure

h2=BC

$tan(46\°)=\frac{h_2}{180}$

Solve for h2

$h_2=(180)tan(46\°)\\h_2=186.40\ ft$

step 3

Find the height of the neighboring building

we know that

The height of the neighboring building is equal to

$h=h_1+h_2$

substitute the values

$h=83.94+186.40=270.34\ ft$

Round to the nearest tenth of a foot

$h=270.3\ ft$

7 0

3 years ago