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OLga [1]
2 years ago
7

9. Solve for x: Please explain

Mathematics
2 answers:
aleksklad [387]2 years ago
8 0

Answer:

since the triangle has a line on 2 sides, it means that it is equal. Also, every triangle has 180 degrees so the missing degree is 70

Step-by-step explanation:

Figured it out

IrinaK [193]2 years ago
6 0

Answer:

x = 70°

Step-by-step explanation:

Since 2 sides are marked as congruent then the triangle is isosceles with 2 base angles being congruent , both 55°

the sum of the 3 angles in the triangle = 180° , so

x + 55° + 55° = 180°

x + 110° = 180° ( subtract 110° from both sides )

x = 70°

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A ball is dropped from a certain height. The function below represents the height f(n), in feet, to which the ball bounces at th
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The answer is C hope I helped
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3 years ago
If IQ scores are normally distributed with a mean of 100 and a standard deviation of 5, what is the probability that a person se
notsponge [240]

Answer:

2.28% probability that a person selected at random will have an IQ of 110 or higher

Step-by-step explanation:

Problems of normally distributed samples are 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 = 100, \sigma = 5

What is the probability that a person selected at random will have an IQ of 110 or higher?

This is 1 subtracted by the pvalue of Z when X = 110. So

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

Z = \frac{110 - 100}{5}

Z = 2

Z = 2 has a pvalue of 0.0228

2.28% probability that a person selected at random will have an IQ of 110 or higher

5 0
2 years ago
Ms Durham buys a metre of fabric. She cuts off 30) cm. The amount of fabric left in<br> cm is?
oksian1 [2.3K]
70 cm

ex:
100 cm in a meter
so you’d do 100-30 cm
and that equals 70 centimeters
6 0
3 years ago
PLZ HELP I NEED THIS WILL GIVE BRAINEST
SCORPION-xisa [38]
(x,y) –> (x+9, y+8)
5 0
3 years ago
The lengths of the sides of a triangle are x, 2x + 1, 5x + 4 inches. If the perimeter is 53 inches, what is thevalue of x?
satela [25.4K]
Answer: 6


Explanation:

x + 2x + 1 + 5x + 4 = 53
8x + 5 = 53
8x = 48
x = 6
5 0
3 years ago
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