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viktelen [127]
3 years ago
9

Uh need a bit of help with this question

Mathematics
2 answers:
ioda3 years ago
5 0

When we multiply two powers of a common base, we add the exponents.  That's the familiar rule

a^m a^n = a^{m+n}

So here

13^8 \times 13 ^{-4} = 13^{8+ -4}= 13^4

Answer: C


Evgen [1.6K]3 years ago
4 0

a^m a^n = a^{m+n}

So here

13^8 \times 13 ^{-4} = 13^{8+ -4}= 13^4

Answer: C


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Find angles b,c and d
Mazyrski [523]

Answer:

B = 73°, c = 107°, d= 107°

Step-by-step explanation:

b + 107 \degree = 180 \degree..(straight \: line \:  \angle s) \\ b = 180 \degree - 107 \degree \\  \huge \red{ \boxed{b = 73 \degree}} \\  \\ \huge \purple{ \boxed{c = 107 \degree }}\\..(vertical \:  \angle s) \\  \\ \huge \orange{ \boxed{d = 107 \degree }}\\..(corresponding \:  \angle s) \\  \\

8 0
3 years ago
The incorrect work of a student to solve an equation 2(y + 6) = 4y is shown below.
Lina20 [59]

Answer:

<h3>⇒ A. 2 should be distributed as 2y + 12, y = 6</h3>

Step-by-step explanation:

Here are the steps to solve this equation:

<u>Given:</u>

First step: 2(y+6)-4y

Use the distributive property.

<u>Distributive property:</u>

<h3>⇒ A(B+C)=AB+AC</h3>

2(y+6)

2*y=2y

2*6=12

2y+12

Isolate the term of y from one side of the equations.

2y+12=4y

Subtract by 12 from both sides.

2y+12-12=4y-12

Solve.

2y=4y-12

Then, you subtract by 4y from both sides.

2y-4y=4y-12-4y

Solve.

2y-4y=-2y

-2y=-12

Divide by -2 from both sides.

\sf{\dfrac{-2y}{-2}=\dfrac{-12}{-2}}

Solve.

Divide the numbers from left to right.

<u>Solutions:</u>

-12/-2=6

\Longrightarrow: \boxed{\sf{y=6}}

  • <u>Therefore, the correct answer is A. "2 should be distributed as 2y+12, y=6".</u>

I hope this helps. Let me know if you have any questions.

4 0
2 years ago
I need help on this please
tresset_1 [31]

Answer:

The y-intercept is (0, 8)

The x-intercepts are (2, 0) and (4, 0)

The axis of symmetry is a vertical line at x = 3

The vertex is (3, -1)

The graph has a minimum value -1 at x = 3

The domain is {x: x ∈ R} ⇒ (-∞, ∞)

The range is {y: y ≥ -1} ⇒ [-1, ∞)

Step-by-step explanation:

By using the given figure

The figure represents a parabola (the graph of a quadratic function

∵ The parabola intersects the y-axis at point (0, 8)

∴ The y-intercept is (0, 8)

∵ The parabola intersects the x-axis at point (2, 0) and (4, 0)

∴ The x-intercepts are (2, 0) and (4, 0)

∵ The axis of symmetry of the parabola is a vertical line that passes

  through the vertex of it

∵ The x-coordinate of the vertex point is 3

∴ The axis of symmetry is a vertical line at x = 3

∵ The vertex of the parabola is the lowest point on the graph

∵ The lowest point is (3, -1)

∴ The vertex is (3, -1)

∵ The vertex point of the graph is the lowest

∴ The graph has a minimum value -1 at x = 3

∵ The domain is all values of x belong to the parabola

∵ x could be any real number

∴ The domain is {x: x ∈ R} ⇒ (-∞, ∞)

∵ The range is all the values of y from the lowest point

∵ The y-coordinate of the lowest point is -1

∴ The range is {y: y ≥ -1} ⇒ [-1, ∞)

7 0
3 years ago
Use distributive property to simplify -7 (- 4x + 8 )
ddd [48]

Answer:

you answer is going to be 17

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Can somebody help me asap correct answer gets brainliest
Dima020 [189]

Answer:

u are correct, 0.5/2 = 0.25 and etc

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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