2 years ago

After substituting, what is the first step when evaluating (4y+9)/7 when Y = 8

Mathematics

1 answer:

frozen [14]2 years ago

5 0

Answer:

B. Multiply 8 by 4 is the answer

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What is measure of angle A?

Goryan [66]

Answer:

$A=53.13\°$

Step-by-step explanation:

The figure shows a right triangle.

To calculate the measure of the angle A, you can use the inverse trigonometric function arctangent:

$\alpha=arctan(\frac{opposite}{adjacent})$

Identify the angle $\alpha$ , the opposite side and the adjacent side:

$\alpha=A\\opposite=4cm\\adjacent=3cm$

Substitute into $\alpha=arctan(\frac{opposite}{adjacent})$ .

The measure of the angle A is:

$A=arctan(\frac{4}{3})\\\\A=53.130\°$

Rounded to the nerarest hundreth:

$A=53.13\°$

4 0

2 years ago

Solve the system of equations. <br> 3x-4y=8 <br> 18x-5y=10

ipn [44]

Answer:

y = -2 x = 0

Step-by-step explanation:

1. 3x-4y = 8

2. 18-5y = 10

Multiply equation 1 by 6

3. 18x-24y = 48

Subtract equation 2 from equation 3

4. -19y = 38

y = 38/-19

y = -2

Sub y = -2 back into equation 1

3x-4(-2) = 8

3x + 8 = 8

3x = 0

x = 0/3

x = 0

7 0

2 years ago

The cost of one apple and one banana at the school canteen is $1 and the cost of 3 apples and 2 bananas is $2.40. Find the cost

Anastaziya [24]

Answer:

I don't know

8 0

2 years ago

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Write 77^1/10 in the form <br> n√77 where n is a whole number.

Sedaia [141]

Answer:

$\sqrt[10]{77}$

Step-by-step explanation:

$77^\frac{1}{10}$ is the same as $\sqrt[10]{77^1} ,$ or simply $\sqrt[10]{77}$

4 0

1 year ago

2. Use (<, >, =) to compare 23 and 34.

lara31 [8.8K]

Answer:

Step--step explanation:

2/3 = 0.67

3/4= 0.75

So 2/3 < 3/4

8 0

2 years ago

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