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3 years ago

10

BRAINLIEST ANWER + 5 STAR RATING + 20 POINTS ITS MIDTERM GUYS HELP ME!!! Complete the given ordered pairs for the equation. Y=5X

+5 (2, ) (0, ) (-3, )

1 answer:

MakcuM [25]3 years ago

4 0

Answer:

y=5(2)+5 so (2,15)

y=5(0)+5 so (0,5)

-3=5x+5 so (-3, -1.6)

Step-by-step explanation:

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Talisa plans a 6-foot deep pond. While digging, she hits rock 5 feet down. How can Talisa modify the radius to maintain the orig

iogann1982 [59]

Answer:

The new radius r' should be 1.1 times the original planned radius ( rp ).

Step-by-step explanation:

Solution:-

- We will assume the geometry of the pond is modeled as a cylinder with base modeled as a circle with radius ( r ) and the planned height of the ( hp = 6 feet ).

- The volume V of a cylindrical pond is given by:

V = π*r^2*h

- Talisa had planned a depth hp = 6 feet, The planned volume with planned radius ( rp ) was:

Vp = π*rp^2*6

- However, she hit a rock at h' = 5 feet, So what change must he make to the radius of the pond such that she achieves the planned volume of the pond.

V = π*r'^2*h'

Where, r' is the new radius of the pond:

Vp = V

π*rp^2*6 = π*r'^2*5

( r' / rp )^2 = 6 / 5

r' / rp = √6 / 5

r' / rp = 1.09544

r' = 1.1*rp

- The new radius r' should be 1.1 times the original planned radius ( rp ).

8 0

3 years ago

Write 1/3 x 1/4 in lowest terms

grandymaker [24]

1/3 x 1/4 is (1x1) / (4x3) = 1/12 which is in its lowest terms

6 0

3 years ago

What's the area of a square whose perimeter is 20 cm

Agata [3.3K]

The area is 25, because the length and width are both 5.

5× 5 = 25 (area)

5 + 5 + 5 + 5 = 20 (perimeter)

You're welcome :)

4 0

3 years ago

Read 2 more answers

Right Triangle Trig question. Please respond with a legitimate answer and with a thorough explanation.

Pepsi [2]

I can think of three ways. I'll try them all.

This is the construction for the geometric mean of $a$ and $b$ , so $EG=\sqrt{ab}$ . That's no fun, but I suppose it's nice to know the answer going in.

We have three similar triangles, because the two little ones have a common angle and a right angle, so same angles as the big one.

$\dfrac{a}{DE} = \dfrac{EG}{EF} = \dfrac{DE}{a+b}$

$\dfrac{EG}{DE} = \dfrac{b}{EF} = \dfrac{EF}{a+b}$

So

$EF^2 = b(a+b)$

$DE^2 = a(a+b)$

$EG = \dfrac{b \ DE}{EF}$

$EG^2 = \dfrac{b^2 DE^2}{EF^2} = \dfrac{ab^2(a+b)}{b(a+b)}=ab$

There it is again.

I guess the way they really want you to do it is to write the Pythagorean Theorem a few times. Let's abbreviate $d=ED, f=EF, g=EG$

$g^2 + a^2 = d^2$

$g^2 + b^2 = f^2$

$d^2 + f^2 = (a+b)^2$

$g$ is our unknown. Adding all three equations,

$g^2 + a^2 + g^2 + b^2+ d^2 + f^2= d^2 + f^2 + a^2 + b^2 + 2ab$

$2g^2=2ab$

$g^2=ab$

That's three different ways. Plugging in the numbers,

$\sqrt{2(16)}=4\sqrt{2} \approx 5.657 \quad$ fourth choice.

I hate it when they ruin a nice exact answer with an approximation.

7 0

3 years ago

What is the slope of the line that contains the point (-3,4) and (-1,8)?

Semmy [17]

formula of a slope of a line when 2 points are given:

delta y/ delta x= slope -> y2-y1 / x2-x1= slope so:

8-4 / -1 +3

= 4/ 2

= 1/2

4 0

3 years ago