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3 years ago

I think im right can anyone confirm that but if im not please tell me

Mathematics

2 answers:

EleoNora [17]3 years ago

6 0

Answer:

Step-by-step explanation:

f(x) = x²-8x-20

a= 1

a >0 so...

-parabola opens up

-vertex is a minumum

Minimum because parabola opens up !

____ [38]3 years ago

4 0

Answer:

Your answer is incorrect. Answer choice is B: Minimum because the parabola opens up.

Step-by-step explanation:

You almost got it right, it is minimum, but the parabola opens up.

A you can see the minimum is plotted at the spaces (4, -36)

The parabola is opening upwards.

Hope this helps please mark brainliest :)

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It took a submarine 30 seconds to sink 225 feet, moving at a constant speed. The captain wants to know the submarine's speed.

Vladimir [108]

Answer:

Speed per second= 7.5 feet per second

Step-by-step explanation:

Giving the following information:

We have a distance (225 feet), and a time (30 seconds). Also, we know that the speed was constant.

All we have to do is divide the distance by the time and determine the speed per second:

Speed per second= distance / time

Speed per second= 225 / 30

Speed per second= 7.5 feet per second

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3 years ago

Which fraction does not belong with the other three explain 1/12 2/12 3/12 or 4/12

MakcuM [25]

1/12 does not belong with the other three fractions.

2/12, 3/12, and 4/12 can all be simplified to 1/6, 1/4/, and 1/3. However, 1/12 can't be simplified.

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3 years ago

An engineering scale model shows a church that is 2 inches tall. if the scale is 1 inch = 256 feet, how tall is the actual churc

SVETLANKA909090 [29]

Answer:

Actual height of church = 512 feet

Step-by-step explanation:

Given:

Scale model;

1 inch = 256 feet

Height of church (Scale model) = 2 inches

Find:

Actual height of church

Computation:

Actual height of church = Height of church (Scale model) x scale length

Actual height of church = 2 inches x 256 feet/inches

Actual height of church = 2 x 256 feet

Actual height of church = 512 feet

8 0

3 years ago

What is the area of the triangle shown below? 5 5 8 units2

natima [27]

Answer:

your answer is 12 units

Step-by-step explanation:

I hope it helps

3 0

3 years ago

Amir stands on a balcony and throws a ball to his dog, who is at ground level. The ball's height (in meters above the ground), x

Y_Kistochka [10]

When the ball hit the ground, the height of the ball will be zero. So using the value of h(x) as zero in the given equation, we can find the time in which the ball will hit the ground.

$0=-(x-2)^{2}+16 \\ \\ 
(x-2)^{2}=16 \\ \\ 
x-2= \sqrt{16} \\ \\ 
x-2=4 \\ \\ 
x=6$

This means the ball will hit the ground 6 seconds after Amir threw it

6 0

3 years ago

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