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2 years ago

Find the value of a²+b if... a=-2 and b=5

Mathematics

2 answers:

Rainbow [258]2 years ago

6 0

Answer:

Step-by-step explanation:

a^2 +b

Let a = -2 and b = 5

(-2)^2 +5

Exponents first

4 +5

Then add

Darya [45]2 years ago

3 0

Answer:

Step-by-step explanation:

Here, we have to observe that a^2 = a×a =-2 × -2 = 4

hence, a^2 + b = 4 + 5 = 9.

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Use the given values of n= 93 and p= 0.24 to find the minimum value that is not significantly low, μ- 2σ , and the maximum val

allsm [11]

Answer:

The answer is "Option a".

Step-by-step explanation:

$n= 93 \\\\p= 0.24\\\\\mu=?\\\\ \sigma=?\\\\$

Using the binomial distribution: $\mu = n\times p = 93 \times 0.24 = 22.32\\\\\sigma = \sqrt{n \times p \times (1-p)}=\sqrt{93 \times 0.24 \times (1-0.24)}=4.1186$

In this the maximum value which is significantly low, $\mu-2\sigma$ , and the minimum value which is significantly high, $\mu+2\sigma$ , that is equal to:

$\mu-2\sigma = 22.32 - 2(4.1186) = 14.0828 \approx 14.08\\\\\mu+2\sigma = 22.32 + 2(4.1186) = 30.5572 \approx 30.56$

3 0

3 years ago

Does anyone know the answer?

meriva

Answer:

2/6

Step-by-step explanation:

there is only two fives with two dice, the dice only have six sides therefore the chances would be two out of five

6 0

3 years ago

What are the solutions to the quadratic equation x2 - 16 = 0?

enot [183]

X=4 x=-4 Due to the difference in squares theorem

7 0

3 years ago

Make x the subject of the formula x − 3 = q

lakkis [162]

Answer:

x = q + 3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define Equation

x - 3 = q

Step 2: Solve for x

Add 3 to both sides: x = q + 3

8 0

3 years ago

How many different numbers can be made by multiplying 1 by some,all,or none of the prime numbers below?

bekas [8.4K]

How many different numbers can be made by multiplying 1 by some,all,or none of the prime numbers below?

2,5,5,7,7,7,11

the answer

only 1 answer will remain the same b/c one multiply by a number is just one

brainlest plz

4 0

4 years ago