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3 years ago

Plz help with algebra! 50 POINTS + BRAINLIEST! random answers will be reported.

Mathematics

2 answers:

KonstantinChe [14]3 years ago

7 0

Answer:

I have made it in above pic hope it helps

kotykmax [81]3 years ago

6 0

Answer:

1. 2.4

2. -8

3. -5-3 = -8

4.10+12+14 = 36

5.-10-3 = -13

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Arabella's password consists of 1 letter followed by two digits. What is the probability of correctly guessing Arabella's passwo

djyliett [7]

1/260 I believe because there are 26 letters and 10 numbers from 0-9 so 26x10=260.

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3 years ago

The rectangular prism shown has a length of 5 cm, a height of 3 cm, and the width of 4 cm. What is the surface area of this pris

PilotLPTM [1.2K]

Answer:20

Step-by-step explanation:

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3 years ago

AREA ADDITION AND SUBTRACTION ASSISTANCE?

Tom [10]

The shaded area is a segment. The area of a segment is

$A_{segment}=A_{sector}-A_{triangle}$ .

You know radius that is the side of isosceles triangle and measure of angle between two equal triangle sides, then

$A_{triangle} =\dfrac{1}{2} a\cdot a \sin \alpha=\dfrac{1}{2} 18.6\cdot 18.6 \cdot \sin 123^{\circ}=172.98\cdot \sin 123^{\circ}=145.07$ sq. m..

The area of sector is $A_{sector}=\dfrac{r^2\cdot \alpha}{2}= \dfrac{(18.6)^2\cdot 0.68\pi}{2}=117.63\pi=369.53$ sq. m..

Then $A_{segment}=369.53-145.07=224.46$ sq. m.

Answer: $A_{segment}=224.46$ sq. m.

7 0

4 years ago

Find the value of x.

Lesechka [4]

Answer: 59

Step-by-step explanation:

$296+29+x-24=360\\\\301+x=360\\\\x=59$

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2 years ago

The percentage of data values that must be within one, two, and three standard deviations of the mean for data having a bell-sha

xxMikexx [17]

Answer:

a. The empirical rule.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed(bell-shaped) random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

So the correct answer is:

a. The empirical rule.

3 0

4 years ago