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3 years ago

Number 8 please divide 12/340

Mathematics

1 answer:

luda_lava [24]3 years ago

5 0

The answer is A you can check in the calculator. 12/340 = 0.035 and 340/12 = 28.33 . 28.33 isn’t a option so the answer is A

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NEED ANSWER ASPA.... PLS HURRY

a_sh-v [17]

We have that
$y=- x^{2} +36$

we know that
Is the equation of a vertical parabola open down
so
the vertex is a maximum

step 1
convert the equation of the parabola in the vertex form
$y=- x^{2} +36 \\ y-36=- x^{2}$

the vertex (h,k) is the point (0,36)

Part a) The point on the graph where the height of the tunnel is a maximum is (0,36)

Part b) The points on the graph where the height of the tunnel is zero feet is when y=0
so
for y=0
$- x^{2} +36=0 \\ x^{2} =36 \\ x= (+/-) 6$

the points are (-6,0) and (6,0)

see the attached figure

5 0

3 years ago

write the standard form of the equation of the circle with the given center and radius (6,4), r= square root of 7

REY [17]

The standard form of the equation of a circle is $(x-6)^{2}+(y-4)^{2}=7$ .

Solution:

Center of the circle = (6, 4)

Radius of the circle = $\sqrt{7}$

<u>To find the equation of the circle:</u>

General formula for the equation of a circle

$(x-h)^{2}+(y-k)^{2}=r^{2}$

where (h, k) is the center of the circle and r is the radius of the circle.

Here, h = 6, k = 4 and r = $\sqrt{7}$

$(x-6)^{2}+(y-4)^{2}=(\sqrt{7}) ^{2}$

$(x-6)^{2}+(y-4)^{2}=7$

Hence the standard form of the equation of a circle is $(x-6)^{2}+(y-4)^{2}=7$ .

3 0

3 years ago

A block is pulled 0.9 m to the right in 2.5 seconds. What is the blocks average speed?

inysia [295]

Answer:

Step-by-step explanation:

speed=distance /time=0.9/2.5=90/25=3.6 m/s

8 0

3 years ago

TIMEREN

IgorC [24]

Answer:

C Might be the best answer

Step-by-step explanation:

Sorry If I am wrong but I am sure it's right.

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2 years ago

Solving systems of linear inequalities

Liono4ka [1.6K]

Answer:

To solve a system of of linear inequalities, you could do the elimination method or substitution method.

Step-by-step explanation:

For elimination method, you can add the same value to each side of an equation. So if you have a system: x – 6 = −6 and x + y = 8, you can add x + y to the left side of the first equation and add 8 to the right side of the equation.

For substitution method, you have to:

Step 1 : First, solve one linear equation for y in terms of x.

Step 2 : Then substitute that expression for y in the other linear equation.

Step 3 : Solve this, and you have the x -coordinate of the intersection.

Step 4 : Then plug in x to either equation to find the corresponding y -coordinate.

4 0

3 years ago