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3 years ago

Pls help me on this 6th grade math question and I will need an explanation thank you :)

Mathematics

1 answer:

asambeis [7]3 years ago

3 0

Answer:

I believe the answer is 88ft^3 because I took 176 and divide by 2 to get 88ft^3 because I flip 1/2 to2/1.

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Please help I will give you brainless fide the volume and round to the nearest tenth

Inessa05 [86]

Answer:

11.5 ft

Step-by-step explanation:

Take the cone formula:

V = 3.14 * 1^2 * 11/3 = 11.5 ft

4 0

3 years ago

A circle is centered at the point (-7, -1) and passes through the point (8, 7).

Lisa [10]

Answer:

Part 1) The radius of the circle is 17 units

Part 2) The point (-15,14) and (-15,-16) lies on this circle

Step-by-step explanation:

step 1

Find the radius of the circle

we know that

The distance from a circle's center to any point on the circle is called the radius of the circle

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

Find the distance (radius) between the points (-7,-1) and (8,7)

substitute in the formula

$r=\sqrt{(7+1)^{2}+(8+7)^{2}}$

$r=\sqrt{(8)^{2}+(15)^{2}}$

$r=\sqrt{(289}\ units$

$r=17\ units$

step 2

Find the equation of the circle in center radius form

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

where

(h,k) is the center of the circle

r is the radius of the circle

we have

$(h,k)=(-7,-1)\\r=17\ units$

substitute

$(x+7)^2+(y+1)^2=17^2$

$(x+7)^2+(y+1)^2=289$

Remember that

If the point (-15,y) lie on the circle, then the ordered pair must satisfy the equation of the circle

substitute the value of x=-15 in the equation

$(-15+7)^2+(y+1)^2=289$

solve for y

$(-8)^2+(y+1)^2=289$

$64+(y+1)^2=289$

$(y+1)^2=225$

take square root both sides

$y+1=(+/-)15\\y=-1(+/-)15$

$y=-1+15=14\\y=-1-15=-16$

therefore

The point (-15,14) and (-15,-16) lies on this circle

see the attached figure to better understand the problem

8 0

4 years ago

Calculate the value of x, given line segment FM = 3x and line segment MN = x + 40.

asambeis [7]

Given that arcs NM and FM are equal, the chords will be equal too

so , NM = FM

NM = x + 40
FM = 3x

x + 40 = 3x
40 = 2x

x = 20

Hope this helps

3 0

3 years ago

Read 2 more answers

Hey people how are y’all?

Rainbow [258]

Answer:

bored and wanting to go swimming :(

Step-by-step explanation:

hb you guys?

8 0

3 years ago

Read 2 more answers

Jarrod walked 3 miles due north before turning left and walking 3.5 miles due west. He turned again and returned to his starting

Ganezh [65]

See the attached figure

t<span>he angle of the last turn was angle alfa in the point C
tan(alfa)=3/3.5=0.8571
alfa=arctan(0.8581)=40.60</span>°
<span>Round to the nearest degree---------> alfa=41</span>°

the answer is 41°

4 0

3 years ago