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2 years ago

What is the answer of 42 / 4 = ?

Mathematics

2 answers:

Marizza181 [45]2 years ago

5 0

2 divided by 42 is 10.5 also just an FYI the “/” normally means division between two numbers; hence my answer :)

Yakvenalex [24]2 years ago

4 0

Answer:

42/4=10.5

Step-by-step explanation:

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If ∠A and ∠B are supplementary and m∠A = 37°45', then m∠B = ______.

xenn [34]

Answer: 142°15'

Explanation:

Supplementary angles are angles that add up to make a straight angle ( $180^{\circ}$ ).

Therefore, we must find the angle ∠B such that

∠A + ∠B = 180° (1)

We know that ∠A = 37°45', so we can re-arrange equation (1) to find the magnitude of ∠B:

∠B = 180° - ∠A = 180° - 37°45' = 142°15'

So, the correct answer is

142°15'

6 0

3 years ago

Read 2 more answers

Solve the system of equations algebraically.

andrew11 [14]

Answer: d. (17, 20)

Step-by-step explanation:

We have the following system of equations:

$x-3y=8$ (1)

$5x-4y=5$ (2)

Isolating $x$ from (1):

$x=\frac{8+3y}{4}$ (3)

Substituting (3) in (2):

$5(\frac{8+3y}{4})-4y=5$ (4)

Isolating $y$ :

$\frac{40}{4}+\frac{15 y}{4}-4y=5$ (5)

$10-5=4y-\frac{15 y}{4}$ (6)

$y=20$ (7)

Substituting (7) in (1):

$x-3(20)=8$ (8)

Isolating $x$ :

$x=17$ (9)

Hence, the correct option is d. (17, 20)

8 0

2 years ago

Describe how you could use algebraic operations to solve the equation 1 = -3x + 4

Anna11 [10]

Answer:

x=1

Step-by-step explanation:

3x=4-1

3x=3

x=1

3 0

2 years ago

Rewrite f(x)=2(2-1)^2+3 from vertex form to standard

Ostrovityanka [42]

F(x)=3^2+3
F(x)=6+3
F(x)=9

6 0

3 years ago

Titus is asked to prove hexagon FEDCBA is congruent to hexagon

Goshia [24]

Answer:

(x, y) -------> ( - x , y - 10 )

Step-by-step explanation:

Titus is not correct.

There are two transformations will correctly prove FEDCBA ≅ F'E'D'C'B'A'

First transformation is Reflection over y-axis , then translation 10 units down.

The final formula is ( - x , y - 10 )

5 0

2 years ago