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ivolga24 [154]
3 years ago
8

PLEASE HELP ME 15 POINTS what is the value of a what is the value of b

Mathematics
1 answer:
jeyben [28]3 years ago
6 0

Answer:

1st shape: a=60, b=120

Step-by-step explanation:

in the center of the shape, you can draw a circle. 1/6 of a circle is 60. so a is 60. to find b, add the 2 a’s (60+60) and you will get 120. the total amount of a quadrilateral is 360. so 360-120 is 240. u need to divide that by 2 and u will get 120.

i don’t know the second one :(

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I need help urgent plz someone help me solved this problem! Can someone plz help I’m giving you 10 points! I need help plz help
poizon [28]

Answer: Delete the point (0, 4)

<u>Step-by-step explanation:</u>

Your line for y = (1/3)x + 4 is correct.

                             m=1/3   b=4

Start at (0, 4) and draw a line through a point up 1 and 3 to the right (3, 5).

Your line for x = 6 is correct.

A vertical line through (6, 0), (6, 1), (6, 2), ...

Your point for (6, 6) is correct.

                    x=6, y=6

Your error is that you used the dot tool to plot a point for (0, 4). You DO need this point to create the line y = (1/3)x + 4, however the instructions do not state to mark this coordinate with a dot.

6 0
3 years ago
HELP I NEED HELP ASAP
My name is Ann [436]

Answer: is C

Step-by-step explanation:

7 0
3 years ago
Water is leaking out of an inverted conical tank at a rate of 6800.0 cubic centimeters per min at the same time that water is be
m_a_m_a [10]

Answer:

6.82 mt^3/min

Step-by-step explanation:

By congruence of triangles, the radius r of the cone base when its height is 1 meter satisfies the relation

r/1 = 2.5/6

(See picture attached)

So, r = 0.4166 meters when the water is 1 meter high.

The volume of a cone with radius of the base = R is given by

V=\frac{\pi R^2h}{3}

So, the volume of water when it is 1 meter high is

V=\frac{\pi* 0.(4166)^2}{3}=0.1817\;mt^3

One minute later, the height of the water is 1 meter + 30 centimeters = 1.30 mt

The radius now satisfies

r/1.3 = 2.5/6

and now the radius of the base is

r = 0.5416 mt

and the new volume of water is 0.3071\;mt^3

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This speed equals the difference between the water being pumped and the water leaking,

So,  

<em>0.12 = Speed of water being pumped -6.8  </em>

and

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8 0
3 years ago
1. Find the value of x in the equation √ x + 5 = √ x + 45.<br> A. 16<br> B. 4<br> C. 1<br> D. 2
Korvikt [17]
I think you mean
sqrt x + 5 = sqrt (x+45)


if you plug in x = 4,
left side = sqrt 4 + 5 = 2+ 5 = 7

right side = sqrt (4+45) = sqrt 49 = 7

so the answer is x = 4 :)
7 0
3 years ago
Read 2 more answers
Khan academy Find the median of the data in the dot plot below. chocolate chips
Helga [31]

Answer:

Where's the picture?

Step-by-step explanation:

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3 years ago
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