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4 years ago

PLEASE HELP IMAGE ATTACHED!! can u explain how to do it

Mathematics

1 answer:

aalyn [17]4 years ago

6 0

Answer: x = 10

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The two blue chords are equally distant from the center. This is shown by the segments with single tick marks. These segments are 3.5 units long.

The bottom blue chord is 10 units long because half of it is 5 units.

Since the chords are the same distance away from the center, this means that the blue chords are equal in length. Both blue chords are 10 units long.

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Solve the following system of equations for y: y = 2x + 6 3x – 4y = -19

padilas [110]

Answer:

x = -1 ; y=4

Step-by-step explanation:

1. Use the substitution method and replace the y on the second equation with the first equation,

2. Solve for x (x=-1)

3. Plug x into the first equation to get y

ANS: y=4

7 0

3 years ago

a.Two 7-sided fair dice are tossed simultaneously. What is the probability of getting two sevens? b.Two 7-sided fair dice are to

Brrunno [24]

A).
The first cube can land in any one of 7 ways. For each of those . . .
The second cube can land in any one of 7 ways.

Total number of possible results = (7 x 7) = 49 .

Number of successful results (both land on 7s) = 1

Probability = 1/49 = 2.04% .

B).
This is a trick question.
Two dice can only show 2 numbers at a time.
The probability of any combination of 3 numbers is zero.

3 0

3 years ago

3. Which number is not written in scientific notation? A. 1.12 x 10^13 B. 1.45 x 9^8 C. 1.47 x 10^-10

rjkz [21]

Answer:

Step-by-step explanation:

Because usually scientific notation ends with a 10 and then an exponent

8 0

3 years ago

Answer correctly pls lol kk

Annette [7]

Answer: y= -4x-2

Step-by-step explanation:

glad i could help!

7 0

3 years ago

Maureen owns three bagel shops. Each shop sells 500 bagels per day. Maureen asks her store managers to use a random sample to se

Elodia [21]

Answer:

In complete questions, the completed question is in ask details

Step-by-step explanation:

Maureen has 3shops

Each sells 500bagels per day

shop A

Total bagels sample is 50 and 10 whole wheat bagels

Shop B

Total bagels sample is 100 and 23 Whole-wheat bagels

Shop C:

Total bagels sample is 25 and 7 Whole-wheat bagels.

It is noticed that the simple space of shop B is more than shop A, notice that shop B sample space is small and it can not give a reasonable valid inference.

Then, Both shop A and shop B sample space is large enough to give a reasonable valid inference

5 0

4 years ago