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4vir4ik [10]
3 years ago
12

Please help! I do not understand. Letter b) cannot be the answer

Mathematics
1 answer:
ivanzaharov [21]3 years ago
3 0
If he has 1/4 of a cup, that means he must fill it up 4 times to equal 1 cup (1/4*4). if he wants 2 cups he must fill it up 8 times.
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1. Points A and B are to be mapped onto a number line according to two equations. The solution to the equation 2/3 A= -24 is the
OleMash [197]
<span>The solution to the equation 2/3 A= -24 is the coordinate of point A.

2/3 A = -24
A = -24 / 2/3
A = -24 * 3/2
A = -72/2
A = -36

The solution to the equation 20=-b/0.5 is the coordinate of point B

20 = -b/0.5
20 * 0.5 = -b
10 = -b
10/-1 = -b/-1
-10 = b

A = -36 and B = -10

The distance between the two letters is 26 units. </span>
4 0
3 years ago
Help!
svet-max [94.6K]
Question 1. 7:11
Question 2. 27 units of K

How to solve the questions-
1. 14/22 divide the numerator and the denominator by 2. This would give you 7/11

2. If the ratio is 12/9 and the amount of N is 36, you’re basically multiplying 12 *3, so then you have to multiply 9 *3=27.
6 0
3 years ago
A survey was conducted that asked 1002 people how many books they had read in the past year. results indicated that x overbar eq
Shalnov [3]
The confidence interval would be (10.44, 12.16).  This means that if we take repeated samples, the true mean lies in 90% of these intervals.

To find the confidence interval, we use:
\overline{x} \pm z*(\frac{\sigma}{\sqrt{n}})

We first find the z-value associated with this.  To do this:
Convert 90% to a decimal:  90% = 90/100 = 0.9
Subtract from 1:  1-0.9 = 0.1
Divide by 2:  0.1/2 = 0.05
Subtract from 1:  1-0.05 = 0.95

Using a z-table (http://www.z-table.com) we see that this is directly between two z-scores, 1.64 and 1.65; we will use 1.645:

11.3 \pm 1.645*(\frac{16.6}{\sqrt{1002}})&#10;\\&#10;\\11.3 \pm 0.86&#10;\\(11.3-0.86, 11.3+0.86)&#10;\\(10.44, 12.16)
3 0
4 years ago
If we transform the parabola y = (x + 1)2 + 2 by shifting 7 units to the right and 5 units down, what is the vertex of the resul
ss7ja [257]
The answer would be (6,-3)
6 0
3 years ago
Read 2 more answers
a group of students surveyed chose baseballand soccer as there favorite sport in th ratio 3:8 if 132 students were surveyed , fi
makkiz [27]

132/11= 12

12 times 8 = 96

96 students chose soccer.

8 0
3 years ago
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