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bija089 [108]
2 years ago
14

In which equation does x = 15?

Mathematics
2 answers:
S_A_V [24]2 years ago
8 0
To help you with it, plug-in 15 in each equation and see what you get!
Eva8 [605]2 years ago
3 0

Answer:

i still need help with the lesson myself i already learned this im thinking it's B or D only cz for D when i did it i got 16 which was pretty close n for B im not sure sorry:/

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How many possible outcomes are there when spinning a spinner numbered from 1 to 8 and tossing a coin?
guajiro [1.7K]
There is 16 possible outcomes when spinning a spinner numbered from 1 to 8 and tossing coin.
7 0
3 years ago
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The area of a rectangle is 490490 in squaredin2. the ratio of the length to the width is 5 : 25:2. find the length and the width
Arlecino [84]
Let the width be 2w. Then the lenght is 5w. So:
(2w)(5w)=490
10w²=490
w²=49
w=±7
So, 2w=width=14 in; and 5w=length=35 in
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6 0
3 years ago
Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate
Leviafan [203]

Answer:

Probability of having student's score between 505 and 515 is 0.36

Given that z-scores are rounded to two decimals using Standard Normal Distribution Table

Step-by-step explanation:

As we know from normal distribution: z(x) = (x - Mu)/SD

where x = targeted value; Mu = Mean of Normal Distribution; SD = Standard Deviation of Normal Distribution

Therefore using given data: Mu (Mean) = 510, SD = 10.4 we have z(x) by using z(x) = (x - Mu)/SD as under:

In our case, we have x = 505 & 515

Approach 1 using Standard Normal Distribution Table:

z for x=505: z(505) = (505-510)/10.4 gives us z(505) = -0.48

z for x=515: z(515) = (515-510)/10.4 gives us z(515) = 0.48

Afterwards using Normal Distribution Tables and rounding the values to two decimals we find the probabilities as under:

P(505) using z(505) = 0.32

Similarly we have:

P(515) using z(515) = 0.68

Now we may find the probability of student's score between 505 and 515 using:

P(505 < x < 515) = P(515)-P(505) = 0.68 - 0.32 = 0.36

PS: The standard normal distribution table is being attached for reference.

Approach 2 using Excel or Google Sheets:

P(x) = norm.dist(x,Mean,SD,Commutative)

P(505) = norm.dist(505,510,10.4,1)

P(515) = norm.dist(515,510,10.4,1)

Probability of student's score between 505 and 515= P(515) - P(505) = 0.36

Download pdf
6 0
3 years ago
HELP! I will mark you the brainiest!
Ymorist [56]
#5: cost: y
Number of beads: x
y=0.48*x
So for 4 beads: 1.92
for 5 beads: 2.4

#6: the x th term in the sequence is y
y=17-2x
The 10th term is -3
6 0
3 years ago
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What inverse operation should be used to isolate the variable in the equation p − 20 = 50?
shutvik [7]

addition since inverse means opposite

3 0
3 years ago
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