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3 years ago

WILL GIVE BRAINLIEST TO THE BEST ANSWER

Mathematics

2 answers:

Nimfa-mama [501]3 years ago

6 0

Answer:

Step-by-step explanation:

vladimir1956 [14]3 years ago

3 0

Answer:

The best awnser I believe would be A. Dialect

You might be interested in

Problem 5

hjlf

Answer:

Acute Angled Triangle.

Right-Angled Triangle.

Obtuse Angled Triangle

Step-by-step explanation:

a right angle would be 90° angle

obtuse would be over 90°

acute would be smaller than 90°

hope this helps!

8 0

3 years ago

Suppose the force acting on a column that helps to support a building is a normally distributed random variable X with mean valu

Sauron [17]

Answer:

(1) 0.4207

(2) 0.7799

Step-by-step explanation:

Given,

Mean value,

$\mu = 15.0$

Standard deviation,

$\sigma = 1.25$

(1) P(X ≥ 17.5) = 1 - P( X ≤ 17.5)

$= 1- P(\frac{x-\mu}{\sigma} \leq \frac{17.5-\mu}{\sigma})$

$=1-P(z\leq \frac{17.5 - 15}{1.25})$

$=1-P(z\leq \frac{2.5}{1.25})$

$=1-P(z\leq 2)$

$=1- 0.5793$ ( By using z-score table )

= 0.4207

(2) P(14 ≤ X ≤ 18) = P(X ≤ 18) - P(X ≤ 14)

$=P(z\leq \frac{18 - 15}{1.25}) - P(z\leq \frac{14 - 15}{1.25})$

$=P(z\leq \frac{3}{1.25}) - P(z\leq -\frac{1}{1.25})$

$=P(z\leq 2.4) - P(z\leq -0.8)$

= 0.9918 - 0.2119

= 0.7799

8 0

3 years ago

Ricardo has 2 cases of video games Edith the same number of games in each case. He gives 4 games to his brother. Ricardo has 10

alisha [4.7K]

Answer:

7 games

Step-by-step explanation:

Ricardo has 2 cases with x number of games in each. This means 2x is the amount of video games in both. He gives away 4. He now has 2x-4 and has 10 left. This is 2x-4=10. Solve for x.

2x - 4 = 10

2x = 14

x=7

7 0

3 years ago

What is 4 2/7 ⋅ 2 1/5 ?

Vikki [24]

Answer: 9 and 3/7

Step-by-step explanation: To multiply a mixed number by a mixed number, we first want to write each mixed number as an improper fraction.

We can write a mixed number as an improper fraction by multiplying the denominator by the whole number and adding the numerator.

We can change $4\frac{2}{7}$ to the improper fraction 30/7.

We can also change $2\frac{1}{5}$ to the improper fraction 11/5.

Now, we are simply multiplying fractions. To multiply fractions, we multiply across the numerators and multiply across the denominators. When we multiply these fractions, we will end up with the fraction 330/35. Since 330/35 is not in lowest terms, we need to divide both the numerator and denominator by the greatest common factor of 330 and 35 which is 5 and we will get the improper fraction 66/7.

Notice however that 66/7 can be changed into a mixed number by dividing the denominator which is 7 into the numerator which is 66.

66 divided by 7 equals 9 with a remainder of 3 so we can write 66/7 as the mixed number 9 and 3/7.

Therefore, 4 and 2/7 × 2 and 1/5 = 9 and 3/7

3 0

4 years ago

Read 2 more answers

On our first quiz Juan scored 82. Use a compound inequality to show the possible score x he got on his second test, if the avera

bogdanovich [222]

We determine the minimum and maximum scores that Juan needs to get in order to be within the strict average range. We let x be his score.

minimum:
74 = (82 + x) / 2
The value of x from the equation is equal to 66.

maximum:
80 = (82 + x )/2
The value of x from the equation is equal to 78.

Hence, Juan's score should fall between 66 and 78, inclusive.

Answer: <em> 66 ≤ x ≤ 78</em>

5 0

3 years ago

Read 2 more answers