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labwork [276]
3 years ago
6

If the equation of a function is y=x2-5, what is the output when the input is -1? А) -6 B) -5 O -4 D) - 3​

Mathematics
1 answer:
Tatiana [17]3 years ago
8 0

Answer:

- 4

Step-by-step explanation:

If the equation of a function is y=x2-5, the output when the input is -1 is

y = (-1)² - 5

= - 4

Hope it will help :)

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Which values of a and b make the following equation true? (5x7y2)(-4x4y5)=-20xayb
Kaylis [27]

Answer:

The values of a and b are a = 11 , b = 7

Step-by-step explanation:

* Lets explain how to solve the problem

* In the exponential functions we have some rules

1-  In multiplication if they have same base we add  the power

# Ex: b^m  ×  b^n  =  b^(m + n) ⇒ b is the base , m and n are the powers

2- In division if they have same base we subtract  the power

# Ex: b^m  ÷  b^n =  b^(m – n) ⇒ b is the base , m and n are the powers

3- If we have power over power we multiply them

# Ex: (b^m)^n = b^(mn) ⇒ b is the base , m and n are the powers

* Lets solve the problem

∵ The equation is (5x^{7}y^{2})(-4x^{4}y^{5})=-20x^{a}y^{2} ⇒ (1)

- At first multiply the coefficients

∵ -4 × 5 = -20

- Multiply the base x

∵ (x^{7})(x^{4})=x^{7+4}=x^{11}

- Multiply the base y

∵ (y^{2})(y^{5})=y^{2+5}=y^{7}

∴ (5x^{7}y^{2})(-4x^{4}y^{5})=-20x^{11}y^{7} ⇒ (2)

- By comparing (1) and (2)

∴ a = 11 and b = 7

* The values of a and b are a = 11 , b = 7

5 0
3 years ago
Read 2 more answers
What’s A Translation
ehidna [41]

Answer:

Step-by-step explanation:

the process of translating words or text from one language into another.

"Constantine's translation of Arabic texts into Latin"

2.

FORMAL•TECHNICAL

the process of moving something from one place to another.

"the translation of the relics of St. Thomas of Canterbury"

7 0
4 years ago
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I NEED HELP PLEASE IT WOULD REALLY MEAN AOT !!!!<br><br> NO ZOOMS OR LINKS!!!!
Reika [66]

Answer:

20.78

Step-by-step explanation:

sin a = perpendicular/ hypotenuse

where a is the base angle

here a = 60

sin 60 = 18/ x

since,

\sin(60)   =  \ \frac{ \sqrt{3} }{2}

\frac{ \sqrt{3} }{2}  =  \frac{18}{x}

√3 x = 36

x = 36/ √3

x = 36/ 1.732

x = 20.78

5 0
3 years ago
Can someone please help
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Answer:

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Step-by-step explanation:

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3 years ago
How do you find the y-intercept in a equation?
Ksivusya [100]
If you look at any graph, you'll notice that at the point where the graph crosses
the y-axis, the x-value of the graph is <em><u>zero</u></em>.  Does that give you any ideas ?

Just take the equation, call 'x' zero, then solve whatever is left for 'y'.
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3 years ago
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