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3 years ago

Select the expression that represents the following statement: add 3 and 22, and then divide by 5.

Mathematics

1 answer:

disa [49]3 years ago

3 0

Answer:

Step-by-step explanation:

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Solve the equation 4y-1.9=6.3

Liono4ka [1.6K]

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3 years ago

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Find the value of x in the isosceles triangle shown below

levacccp [35]

Answer:

x=10

Step-by-step explanation:

$\frac{x}{2}=\sqrt{13^2-12^2} \\x=2\sqrt{169-144} \\x=2\sqrt{25} \\x=2 \times 5=10$

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3 years ago

Translate the verbal statements into a system of linear equations: Fatima invested a total of $1000 in two simple-interest bank

mixas84 [53]

Answer:

Step-by-step explanation:

Translate the verbal statements into a system of linear equations: Fatima invested a total of $1000 in two simple-interest bank accounts. One account paid 5% annual interest; the other paid 6% annual interest. The total amount of interest she earned after 1 year was $56

Simple interest formula =

I = PRT

We are to find the Amount = Principal invested

For Account 1

I1 = P × 5% × 1

= 0.05P

Account 2

I2 = P × 6% × 1

= 0.06P

Therefore:

0.05P + 0.06P = $56

6 0

3 years ago

Find cos ⁡ ( 2 ⋅ ∠ A B C ) cos(2⋅∠ABC)

Pavlova-9 [17]

The value of the cosine function is -0.385

<h3>How to determine the measure of the cosine function?</h3>

The figure that completes the question is added as an attachment

From the figure, we have the following sides

AB = √13

AC = 3

BC = 2

The triangle is a right triangle.

The angle B is calculated as:

cos(B) = 2/√13

Evaluate

cos(B) = 0.5547

Take the arccos of both sides

B = 56.31

This means that:

cos(ABC) = cos(56.31)

Multiply ABC by 2.

So, we have:

cos(ABC * 2) = cos(56.31 * 2)

Evaluate the product

cos(ABC * 2) = cos(112.62)

Evaluate the cosine

cos(ABC * 2) = -0.385

Hence, the value of the cosine function is -0.385