What is the value? 3/4 + 7/12 - (-4)

Answers

Answer 1

Answer:

Answer: 3/4 + 7/12 - (-4) = 3/4 + 7/12 + 4 (two minuses make a plus)

3/4 + 7/12 + 4/1 = 9/12 + 7/12 + 48/12 (4 = 4/1 or 4 divided by 1)

(to add the fractions the denominators need to be the same. Multiply both the denominator and numerator by the same number)

(9+7+48)/12 = 64/12 = 5 and 1/3 or 16/3

We can also get this answer by leaving the 4 as a whole number:

9/12 + 7/12 +4 = 16/12 + 4 = 1 and 1/3 + 4 = 5 and 1/3

If you put the sum in a calclator you also get 5 and 1/3.

Hope this helps :)

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Given g(x) = -X – 1, solve for x when g(x) = 3.
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A rectangular prism has a base 3 cm by 4 cm and is 5 cm in height.What is the surface area of the rectangular prism?
A. 94 cm2
C. 60 cm
B. 70 cm2
D. 47 cm

Answers

Answer:

94 cm2

Step-by-step explanation:

Base x Width x height

4 x 5 x 3

Answer:

A: 94 cm2

Step-by-step explanation:

the surface area is 94 cm2

B) In a sunny day, the length of the shadow of a pole 30m long is equal to theof the pole. After a while, it is found to be 51.96m long, find the altitude of the sun in both cases.

Answers

When the shadow is 30 meters long, the angle of the sun is 45°.

When the shadow is 51.96 meters long, the angle of the sun is arctan(30/51.96) = 30°

f(2) 42 g(x) = 2x +3 Find 4) (. Include any restrictions on the domain. O A. 2.2---3 417 2 > 0 B. 47 2 2 r--3, (1) (a) = (4) (a) x A 을 c. (5) (r) = 1,2*0 OD (1) (a= + 2

Answers

Answer:

Option D

Step-by-step explanation:

Given f(x) = $\sqrt[3]{4x}$

g(x) = 2x + 3

Since, $((f)/(g))(x)=(f(x))/(g(x))$

$=\frac{\sqrt[3]{4x}}{2x+3}$

This function is defined for the denominator is not equal to zero.

(2x + 3) ≠ 0

x ≠ $-(3)/(2)$

Therefore, Option D will be the correct option.

Which of the following is equivalent to 2 2/5

Answers

Answer:

0.4 - 0.40 - 4/10 -

Step-by-step explanation:

Use the "mixed partials" check to see if the following differential equation is exact.(3x^3 − 3y) dx + (−3x + 2y1) dy = 0
If it is exact find a function F(x,y) whose differential, dF(xy) is the left hand side of the differential equation. That is, level curves F(xy)=C are solutions to the differential equation.

Answers

Answer:

The equation is exact

F(x,y) = 3x4/4 - 3xy -y2

Step-by-step explanation:

The step by step explanation and to ascertain the exactness of the differential equation is as shown in the attached file.

Brandon uses the steps below to solve the equation 15 x + 6 = 14 x + 5 using algebra tiles.Step 1 Add 14 negative x-tiles to both sides.
Step 2 Add 5 negative unit tiles to both sides
Step 3 The solution is x = 1.

Which explains whether Brandon is correct?
Brandon is correct because he has the correct solution in step 3.
Brandon is correct because he forms zero pairs to isolate the variable by using the lowest coefficient each time.
Brandon is not correct because he should have performed step 2 before performing step 1.
Brandon is not correct because he should have added 6 negative unit tiles to isolate the variable in step 2.

Answers

The correct option is Option D: Brandon is not correct because he should add -6 on both sides to isolate the variable in step 2.

What is the linear equation?

The linear equation is an equation where the highest degree of the variable used in the equation is 1.

For example 2x+5=25

Given the equation is 15x +6= 14x+ 5

In order to the linear equation first, try to keep the constant and the variable part to one side by adding or subtracting the constant term.

Then divide the coefficient of the variable (if the coefficient is not equal to 1) on both sides.

Here the given equation is 15x +6= 14x+ 5

Step-1: adding -14x on both sides

⇒15x +6 -14x= 14x+ 5 -14x

⇒x+ 6= 5

Step-2: adding -6 on both side

⇒x+ 6-6 = 5-6

Step-3: solution will be -1

⇒x= -1

Therefore the correct option is Option D: Brandon is not correct because he should add -6 on both sides to isolate the variable in step 2.

Learn more about linear equation

here: brainly.com/question/13728326

#SPJ2

Answer:

Brandon is not correct because he should have added 6 negative unit tiles to isolate the variable in step 2.

Step-by-step explanation:

edge 2020

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