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4 years ago

What is 3 3/4 divided by 1 1/2? a. 1 1/2 b. 2 1/2 c. 3 1/2 d. 4 1/2

Mathematics

2 answers:

Lerok [7]4 years ago

3 0

Answer:

c i took the test

Step-by-step explanation:

Elena-2011 [213]4 years ago

3 0

Answer:

B. $2\frac{1}{2}$

Step-by-step explanation:

$3\frac{3}{4} = \frac{15}{4}$
$1\frac{1}{2} = \frac{3}{2}$
Re-write the expression: 15/4 ÷ 3/2
15/4 ÷ 3/2 = 15/4 × 2/3
15/4 × 2/3 = 30/12
30/12 = 2.5
2.5 = $2\frac{1}{2}$

I hope this helps!

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3a+4+b+2a+5+b Simplify the expression?

MissTica

Answer:

$5a+2b+9$

Step-by-step explanation:

Given expression:

$3a+4+b+2a+5+b$

In order to simplify the given expression, we will first group the like terms.

$3a+2a+b+b+4+5$

Then we combine the like terms,

$3a+2a=5a\\b+b=2b\\5+4=9$

The terms combined can be written as:

$5a+2b+9$ (Answer)

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4 years ago

Use Euler's formula to derive the identity. (Note that if a, b, c, d are real numbers, a + bi = c + di means that a = c and b =

storchak [24]

Answer with Step-by-step explanation:

We have to prove that

$sin 2\theta=2sin\theta cos\theta$ by using Euler's formula

Euler's formula : $e^{i\theta}=cos\theta+isin\theta$

$e^{i(2\theta)}=(e^{i\theta})^2$

By using Euler's identity, we get

$cos2\theta+isin2\theta=(cos\theta+isin\theta)^2$

$cos2\theta+isin2\theta=(cos^2\theta-sin^2\theta+2isin\theta cos\theta)$

$(a+b)^2=a^2+b^2+2ab, i^2=-1$

$cos2\theta+isin2\theta=cos2\theta+i(2sin\theta cos\theta)$

$cos2\theta=cos^2\theta-sin^2\theta$

Comparing imaginary part on both sides

Then, we get

$sin2\theta=2sin\theta cos\theta$

Hence, proved.

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4 years ago

Johnny wants to invest $10,000 at 4.5% interest rate compounded quarterly, How much will he have after 38 years?

Ganezh [65]

Answer:

a= $54764.26

Step-by-step explanation:

r=R/100

r=4.5/100

r=0.045 rate per year

A = P(1 + r/n)nt

A = 10,000.00(1 + 0.045/4)(4)(38)

A = 10,000.00(1 + 0.01125)(152)

A = $54,764.26

3 0

3 years ago

60 is 12% of what number <br> A. 5 <br> B. 7.2 <br> C. 500 <br> D. 720

EleoNora [17]

The Answer is C: 500

Explanation:
60/12*100=500

8 0

3 years ago

What equals 22 cubed

Dennis_Churaev [7]

Answer:

10648

Step-by-step explanation:

22 x 22 x 22

6 0

3 years ago