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julia-pushkina [17]
4 years ago
9

Find the value of ax 4 ; a = 2, x = 1. Select one: a. 2 b. 4 c. 1 d. 8

Mathematics
2 answers:
alexgriva [62]4 years ago
8 0

For this case we have the following expression:

ax ^ 4

We must find the value of the expression when:

a = 2\\x = 1

Substituting the values in the expression we have:

2 (1) ^ 4 = 2 * 1 = 2

Thus, the value of the expression is 2.

Answer:

The value of the expression is 2

Option A

Rzqust [24]4 years ago
5 0

Answer:

The correct answer is A

Step-by-step explanation:

The given expression is ax^4.

We want to evaluate this expression for: a=2,x=1.

We just have to substitute a=2 wherever we see 'a' in the expression ax^4 and x=1 wherever see x in the same expression.

We perform the substitution to get:

2(1)^4

We evaluate the exponent to get:

 2(1)

We now multiply to get:

 2

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From Midnight to 6 am the temperature rose 8 degrees C. At 6 am the temperature was -21 degrees C. What was the temperature at m
Alika [10]
Hello!

We know that from midnight to 6am the temperature went up 8° and at 6am it was -21°

To find what it was at midnight we have to work backwards

Since it went up we have to subtract 8 from -21

-21 - 8 = -29

The answer is -29°C

Hope this helps!
7 0
3 years ago
Read 2 more answers
Please help!<br><br> If sin(xº)=cos(yº) find k if x=2k+3 and y=6k+7
USPshnik [31]

answer

10

step-by-step explanation

the equation given is sin(x) = cos(y) with x = 2k + 3 and y = 6k + 7

substitute in 2k+ 3 for x in sin(x) and substitute in 6k + 7 for y in cos(y)

sin(x) = cos(y)

sin(2k + 3) = cos(6k + 7)

we know that sin(x) = cos(90 -x)

sin(2k + 3)

= cos(90 - (2k + 3) )

= cos(90 - 2k - 3)

= cos(87 - 2k)

substitute this into the equation sin(2k + 3) = cos(6k + 7)

sin(2k + 3) = cos(6k + 7)

cos(87 - 2k) = cos(6k + 7)

87 - 2k = 6k +7

80 = 8k

k = 10

7 0
3 years ago
Describe the differences between a parabola that has a horizontal directrix and a parabola that has a vertical directrix.
Readme [11.4K]
 <span>A parabola that has a horizontal directrix is a parabola that opens up or down. 

Here are some of its components: 
1) Standard equation of a parabola with a horizontal directrix: (x-h)^2 = 4a(y-k), 
a = distance from vertex to focus 
2) Vertex at (h,k) 
3) Focus(h,k+a) 
4) Directrix: y = k-a 
5) Axis of symmetry: x = h 

A parabola that has a vertical directrix opens to the right or left and is on its side. 

Here are some components 
1) Standard equation of a parabola with a vertical directrix: (y-k)^2 = 4a(x-h) 
2) vertex (h,k) 
3) focus (h+a,k) 
4) directrix: x = h-a 
5) Axis of symmetry: y = k

Hopes this helps :)</span>
4 0
3 years ago
the price of bread went from 1.50 per loaf to 2.50 per loaf in four years. find the rate of change of the price of bread
Talja [164]

Answer:

I think the answer is 1 I really hope this helps

Step-by-step explanation:


3 0
4 years ago
I NEED HELP ASAP PLEASE!!!
Artemon [7]

Answer:

-3x+1y=-1

or

3x-1y=1

or

by multiplying with 1/3 the first equation we get

-1x+1/3y=-1/3

or from second equation

1x-1/3y=1/3

Step-by-step explanation:

y-y1=m(x-x1)

y1=-7

x1=-2

m=3

so

y-(-7)=3(x-(-2))

y+7=3(x+2)

y+7=3x+6

-3x+y=6-7

-3x+ 1y= -1

8 0
3 years ago
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