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cluponka [151]
2 years ago
9

Find the values of x and y in the figure below:

Mathematics
2 answers:
LenKa [72]2 years ago
8 0
B to get my phone taken away I
kenny6666 [7]2 years ago
5 0

Answer:

B

Step-by-step explanation:

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Question 9: You have 2/3 of a pumpkin pie left over from Thanksgiving. You want to give 1/2 of it to your sister. How
Sophie [7]

Answer:

1/3

Step-by-step explanation:

1/2 of 2/3 = 1/3

5 0
3 years ago
Use the slope or distance formula to determine the most precise name for the figure A(-3,-7) B(2,-3) C(9,4) D(4,0)
Kamila [148]
If u just give me my fricking points its 91
7 0
2 years ago
100 PTS!! PLEASE HELP! OVER DUE
Reika [66]

Answer:

-\frac{1}{2} \vec {c}

Step-by-step explanation:

Look at the component form of each vector.

Note that vector c is <4,4> and vector d is <-2,-2>

If one imagined the line that contained each vector, the line for both would have a slope of 1, because \frac{4}{4}=1=\frac{-2}{-2}

Since they have the same slope they are parallel, but since they are in opposite directions, we often call them "anti-parallel" (simply meaning parallel, but in opposite directions).

If two vectors are parallel, one vector can be multiplied by a scalar to result in the other vector.  This means that there is some number "k", such that k \vec{c} = \vec {d}, or equivalently, kc_x=d_x and kc_y=d_y.

If kc_x=d_x and kc_y=d_y, we just need to substitute known values and solve for k:

kc_x=d_x\\k(4)=(-2)\\k=\dfrac{-2}{4}\\k=-\frac{1}{2}

Double checking that k works for the y-coordinates as well:

kc_y=d_y

(-\frac{1}{2}) (4)    ?    (-2)

-2=-2 \text{ } \checkmark

So, -\frac{1}{2} \vec {c} = \vec {d}

6 0
1 year ago
Keep answers as exact as possible (NOT IN TERMS OF PI). <br><br>​
Andreyy89

Answer:

121.9

Step-by-step explanation:

I will use pi but not in the answer

use formula V=πr²h

(π)(3.5²)(5.5)

12.25 × 5.5=67.375 × π=211.6648...

1/2(4/3(π(3.5³))

4/3(42.875)=57.166...× π = 179.59438...

1/2(179.59438...) = 89.79719...

211.6648... - 89.79719...  = 121.86761... ≈ 121.9

6 0
3 years ago
A 90% confidence interval for the mean age, in weeks, at which a baby first crawls was reported to be (32, 46). The margin of er
charle [14.2K]

Answer:

The margin of error for this confidence interval is of 7.

Step-by-step explanation:

Confidence interval concepts:

A confidence interval has two bounds, a lower bound and an upper bound.

A confidence interval is symmetric, which means that the point estimate used is the mid point between these two bounds, that is, the mean of the two bounds.

The margin of error is the subtraction between these bounds, divided by 2.

In this question:

The bounds are 32 and 46.

(46 - 32)/2 = 14/2 = 7

The margin of error for this confidence interval is of 7.

6 0
2 years ago
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