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Mashutka [201]
3 years ago
12

How can you rewrite this equation in terms of 'x'?

Mathematics
2 answers:
Alja [10]3 years ago
5 0
2x + 5 = x + cos(90°)
Hope it helps
WINSTONCH [101]3 years ago
5 0
Its easy, x + 5 = cos(90deg)
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A little help please
Dominik [7]

Answer: it’s 2, x = 2

Step-by-step explanation:

Hopes this helps !!!!

6 0
3 years ago
A bullet travels at 850m/s. How long will it take a bullet to go 1km
gregori [183]
<span>(1 km x 1,000m) </span>÷ 850 m/s = 1.18 s
6 0
3 years ago
find the value of q for which point p(q,2) is the midpoint of the line segment joining the points q(-5,0) and r(-1,4)​
Elza [17]

Answer:

step by step solution:

q=(-1+(-5))/2

q=-3

6 0
3 years ago
Draw a diagram for this fraction<br><br>2 2/3​
LiRa [457]

Answer:

OOO

OOO

OO

Step-by-step explanation:

Where OOO is == 1.

OO is 2/3 of OOO.

7 0
2 years ago
In a recent contest, the mean score was 210 and the standard deviation was 25. a) Find the z-score of John who scored 190 b) Fin
denpristay [2]

Answer:

a) Z = -0.8

b) Z = 2.4

c) Mary's score was 241.25.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 210, \sigma = 25

a) Find the z-score of John who scored 190

Z = \frac{X - \mu}{\sigma}

Z = \frac{190 - 210}{25}

Z = -0.8

b) Find the z-score of Bill who scored 270

Z = \frac{X - \mu}{\sigma}

Z = \frac{270 - 210}{25}

Z = 2.4

c) If Mary had a score of 1.25, what was Mary’s score?

Z = \frac{X - \mu}{\sigma}

1.25 = \frac{X - 210}{25}

X - 210 = 25*1.25

X = 241.25

Mary's score was 241.25.

3 0
3 years ago
Read 2 more answers
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