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2 years ago

Neeeeeeed helpppppppppppppp

Mathematics

2 answers:

r-ruslan [8.4K]2 years ago

5 0

Step-by-step explanation:

Simplify the expressions

$2 {}^{3} - 2 {}^{1} = 2 {}^{3} - 2 = 8 - 2 = 6$

$2 + 3 = 5$

${3}^{2} = 9$

So the expressions from least to greatest is

$2 {}^{1} + 3 {}^{1} < 2 {}^{3} - 2 {}^{1} < 3 {}^{2}$

8_murik_8 [283]2 years ago

3 0

Answer:

$2^{1} + 3^{1}$ , $2^{3} - 2^{1}$ , $3^{2}$

Step-by-step explanation:

$3^{2}$ = 9

$2^{3} - 2^{1}$ = 6

$2^{1} + 3^{1}$ = 5

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A number cube is rolled three times. What is the probability of rolling three even numbers?

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3 years ago

If the correlation between height and weight of a large group of people is 0.75, find the coefficient of determination (as a

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Independent variable is the predictor variable which is the height and dependent variable is the response variable which is weight in this scenario.

The square of correlation coefficient gives the coefficient of determination. It is denoted by R² (R squared).

We are given:
R = 0.75

So,
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4 0

2 years ago

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Clare went to a concession stand that sells pretzels for $3.25, drinks for $1.85, and bags of popcorn for $0.99 each. She bought

djyliett [7]

Answer:

No.

Step-by-step explanation:

Price of each pretzel = $3.25

Price of each drink = $1.85

Price of each bag of popcorn = $0.99

Maximum money to be spent = $10

Price of two pretzels = $3.25 $\times$ 2 = $6.5

Price of two drink = $1.85 $\times$ 2 = $3.70

Price of two bags of popcorn = $0.99 $\times$ 2 = $1.98

Total money spent for buying two items of each type = $6.5 + $3.70 + $1.98 = $12.18

The money spent when 2 pretzels, 2 drinks and 2 bags of popcorn are bought is $12.18.

But maximum money available is $10.

Therefore, Clare would not be able to buy 2 pretzels, 2 drinks and 2 bags of popcorn with the amount of money available.

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2 years ago

Help pls Use the substitution method to solve the system of equations. Choose the

AURORKA [14]

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3 years ago

In ΔPQR, the measure of ∠R=90°, the measure of ∠P=26°, and PQ = 8.5 feet. Find the length of QR to the nearest tenth of a foot.

Vitek1552 [10]

Answer:

3.7feet

Step-by-step explanations

Using the sin rule

A/sin a = B/sin b

Let A = PQ = 8.5feet

B = QR = x feet

a = R = 90°

b = P = 26°

Substitute the values into the Sin rule

8.5/sin90 = x/sin26

8.5×sin 26 = x × sin 90

8.5×0.4383 = x× 1

3.7255 = x

Hence the length of QR to the nearest tenth 3.7feet

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2 years ago

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