Math I NEED HELP LOOK AT THE IMAGE ALGEBRA IS KILLING ME

Answer:

B

Step-by-step explanation:

because that means they always intersect since they're the same ;)

Answer: The answers are: 4.21,4.22,4.23, and 4.24

Step-by-step explanation:

4 1/5 is 4.2 as a decimal and the numbers between 4.2 and 4.5 as numbers with 2 places past the decimal place are the ones above.

11.45

Answer:

y = (-2/125)(x - 50)² + 40

Step-by-step explanation:

The total length of the bridge is 100 meters.

Maximum height always occurs at midpoint of x.

So for x=50 meters , y = 40 meters.

As the vertex is given at the maximum height,  Vertex can be defined at the point (50,40)

We know that the general equation for vertical parabola is:

y = a(x - h)² + k

Where (h,k) = Vertex = (50,40)

Substitute in the equation:

y = a(x - 50)² + 40 ⇒ Equation (i)

We know 2 more points on the parabola. We know that when x=0 , y=0 and we also know that when x=100m, y=0 meters.

Substitute any point in the above equation

Substituting (100,0) in the equation

0 = a(100 - 50)² +40

Solve the equation for a:

a = - 2/125

Substitute a in Equation (i)

y = (-2/125)(x - 50)² + 40

Answer:

[tex]m\angle BOC=54^\circ[/tex]

Step-by-step explanation:

First, we establish the following:

Therefore:

[tex]\angle BAC$ is the angle subtended by arc BC on the circumference.\\\angle BOC$ is the angle subtended by arc BC at the centre.[/tex]

The inscribed angle theorem states that an angle inscribed in a circle is half of the central angle that subtends the same arc on the circle.

Therefore:

[tex]\angle BOC =2\angle BAC\\\angle BOC=2 \times 27\\m\angle BOC=54^\circ[/tex]

Answer:

B. 13

Step-by-step explanation:

[tex]10+(\frac{1}{2}) ^{4} *48=\\\\10+\frac{1}{2}*\frac{1}{2}*\frac{1}{2}*\frac{1}{2}*48=\\\\10+\frac{1}{16}*48=\\\\10+\frac{48}{16}=\\\\10+3=\\\\13[/tex]

Answer:

Step-by-step explanation:

First, use PEMDAS

Parenthesis, Exponents, multiplication, division, addition, subtraction

1/2 * 1/2 * 1/2 * 1/2 = 1/16 = Parenthesis and Exponents

1/16*48 = 48/16 = 3 = Multiplication and Division

3+10 = 13 = Addition

This can conclude that 13 is the answer.

Answer:

10 units

Step-by-step explanation:

Use the distance formula. Substitute the values, (1-9)²+(12-18)²=100. The square root of 100 is 10.

Answer:

gºf(x)​ = [tex]3x^2 -1[/tex]

Step-by-step explanation:

Given

f(x) = x2

g(x) = 3x - 1

To find

gºf(x)​

To find  gºf(x)​ we will use value of f(x) = [tex]x^2[/tex] in place of in g(x)

lets do that

g(x) = 3x - 1

gºf(x)​ = 3(f(x)) -1

gºf(x)​ = [tex]3x^2 -1[/tex]

Thus, value of  gºf(x)​ is   [tex]3x^2 -1[/tex].

Answer:

x<12

Step-by-step explanation:

Divide both sides by 5

5(x+5) < 85

   5         5      

then simply

Answer:

x < 12

Step-by-step explanation:

[tex]5(x+5)<85\\\\5 * x = 5x\\\\5 * 5 = 25\\\\5x+25<85\\\\5x+25-25<85-25\\\\5x<60\\\\\frac{5x}{5}<\frac{60}{5}\\ \boxed{x<12}[/tex]

Answer:

It's (B) [tex]\frac{3}{2}[/tex]

Step-by-step explanation:

Hope this helped you!

Answer:

f^-1(8) = 3/2

Step-by-step explanation:

f(x) = 2x + 5

y = 2x + 5

x = 2y + 5

2y = x - 5

y = (x - 5)/2

f^-1(x) = (x - 5)/2

f^-1(8) = (8 - 5)/2

f^-1(8) = 3/2

Answer:

1/5

Step-by-step explanation:

3 is one out of the total of 5 possibilities.

1/5

Answer:

[tex] \frac{1}{5} [/tex]

Step-by-step explanation:

probability of getting 3 is 1

total probability is 5

so, probability of getting 3 is

[tex] \frac{1}{5} [/tex]

hope it helps .

Answer:

The expression is: air(n) = air(0)*0.88^n

The amount of original air in our lungs after 50 breaths if the initial amount was 500 ml is equal to 0.83775 ml.

Step-by-step explanation:

Since the original air that was in my lung leaves at a rate of 12%, this means that for each breath the volume of original air in my lung is the prior - 12%, in other words it is the same as 88% from the last breath. Therefore we can create an expression that models this decay by doing the following:

Originally:

air(0) = 500 ml

After the first breath we lose 12%, so:

air(1) = air(0)*0.88

This happens again for the second breath:

air(2) = air(1)*0.88 = air(0)*0.88*0.88 = air(0)*(0.88)²

This will repeat as many times as we breath, therefore the expression that models this decay is:

air(n) = air(0)*0.88^n

Applying the data from the problem, we have:

air(n) = 500*0.88^n

To find out the amount of air after 50 breaths, we need to make n = 50 and solve the equation.

air(50) = 500*0.88^(50) = 500*0.0016755 = 0.83775 ml

Answer:

x=4, 3/2

Step-by-step explanation:

3(x-4)(2x - 3) = 0

Using the zero product property

x-4 = 0    2x-3 =0

x=4           2x = 3

                    x = 3/2

Answer:

Step-by-step explanation:

write the expression:

(104x^(2)*y+14y^(2)*z+56x*y^(2)+26x*y*z)/(8*x*y+2y*z)

factor the numerator:

104x^(2)*y+14y^(2)*z+56x*y^(2)+26x*y*z  ⇒  2y(13x+7y)(4x+z)

factor the denominator:

8*x*y+2y*z   ⇒   2y(4x+z)

write the expression with the factored numerator and denominator:

2y(13x+7y)(4x+z)/2y(4x+z)

cancel out like terms:

2y(13x+7y)(4x+z)/2y(4x+z) ⇒ 13x+7y

Answer:

B is the correct answer, hope this helps lmk if u need a deep explanation

Step-by-step explanation:

Answer:

The total current drawn is 6.05 amps

Step-by-step explanation:

Simply add the current that each appliance draws, to get the total current required. Notice that they are all given in the same units (amps), so there is no units conversion needed:

Electric iron  :  4.12 amps

Clock;    0.02  amps

light bulb :  0.91 amps

motor :  1 amp

Total current : 4.12  amps + 0.02 amps + 0.91 amps + 1 amp = 6.05 amps

Answer:

44.6

Step-by-step explanation:

Since the sides with the two tick marks are equal to 7.4, and there are three of these sides, they are equal to 7.4 times 3, which is 22.2. The remaining sides have 1 tick, meaning they are 11.2, meaning this is 11.2 * 2, which is 22.4. The combined perimeter is 44.6 cm.

Answer:

1/4m²-1

let m be the number.

Answer:

Reflection in the line x=3

Step-by-step explanation:

Trust me, I’ve done that one before.

Answer:

56

Step-by-step explanation:

Answer:56

Step-by-step explanation:

Answer:

x=5

Step-by-step explanation:

log2^32=x

log2^2^5=x

5 log 2^2=x

5(1)=x

x=5

Answer:

answer A. next=now •3

Step-by-step explanation:

Looking at the sequence 3, 9, 27, 81, you "see" a that each next number is formed by multiplying the current

number by 3. This is exactly what is stated in answer A. next=now •3

EXTRA:

Mathematically, the function llooks ike f(x) = 3"

Answer:

A

Step-by-step explanation:

3,9,27,81......

This  is geometric sequence.

Common ratio = 2nd term / 1st term = 27/9 = 3

So, the next term is obtained by multiplying the current number by 3

Next = now * 3

Answer:

Step-by-step explanation:

x = 0 is the way to indicate a zero probability:  the probability that some even will happen

Answer:

Step-by-step explanation:

a) x 4 −16⋅x 3 +96⋅x 2 −256⋅x+256

b)

-216  x  y^{3}-96 x^{3}  y+216x^{2}  y^{2}+16 x^{4}+81  y^{4}−216⋅x⋅y

Answer:

(3, -3)

Step-by-step explanation:

If a point is dilated about the origin rule to be followed,

(x, y) → (kx, ky)

where k is a scale factor by which the point is being dilated.

If a point R having coordinates (1, -1) is dilated by scale factor of 3, coordinates of the image will be [3×1, 3(-1)]

Therefore, coordinates of the image R' will be (3, -3)

Answer:

x = 13 deg

Step-by-step explanation:

As shown in the picture, you have:

CF and CD are perpendicular

=> angle BCF = 90 deg

=> angle BCE + angle ECF = angle BCF = 90 deg

or angle BCE + 64 = 90

=> angle BCE = 90 - 64 = 26 deg

Point A, B, and C are collinear

=> (angle ABE) + angle CBE = 180 deg  (1)

Otherwise, as the property of the sum of 3 angles in a triangle:

(angle BEC + angle BCE) + angle CBE = 180 deg  (2)

From (1) and (2) you would have:

angle ABE = angle BEC + angle BCE

or

3x = 26 + x

<=> 3x -  x = 26

<=> 2x = 26

<=> x = 26/2

<=> x = 13

=> angle BEC = x = 13 deg

=> angle ABE = 3x = 3(13) = 39 deg

Hope this helps!

Answer:

The answer would be D

Step-by-step explanation:

Well its clear,

the Y-axis would be the frequency and the X-axis would be the Batting Average

whereas all of them do not correspond correctly to the graph rather than answer choice D.

Hope it helps a little

Answer:

D. Graph C

Verified on a p e x

Answer:

The answer is B.

Step-by-step explanation:

There are three 20 second time periods in 1 minute. Three times eight is equal to 24.  

Answer:

x = -4

Step-by-step explanation:

Make x variable on one side.

(x - 2)/3 = (2x + 4)/2

Simplify.

x/3 - 2/3 = 2x/2 + 2

x/3 - 2/3 = x + 2

Add 2/3 and -x on both sides.

x/3 - x = 2 + 2/3

-2/3x = 8/3

Multiply -3/2 on both sides.

x = -4

Answer:

x=-4

Step-by-step explanation:

(x-2)/3 = (2x+4)/2

We can use cross products

(x-2) *2 = 3(2x+4)

Distribute

2x-4 = 6x+12

Subtract 2x from each side

2x-4-2x = 6x-2x+12

-4 = 4x+12

Subtract 12

-4-12 = 4x+12-12

-16 = 4x

Divide by 4

-16/4 = 4x/4

-4 =x

Answer:

y = -7

Step-by-step explanation:

There is no slope in the line information given. However, we are given the point of (5, -7).

So, we can use the equation [tex]y=-7[/tex] as our line's equation.  The line, when graphed, will go through every point who's y-value is '-7', including (5, -7).

Answer:

y = -7

Step-by-step explanation:

The slope is 0.

y = mx + b

m is the slope.

b is the y-intercept.

y = (0)x + b

The line passes through the points (5, -7).

Put x as 5 and y as -7.

y = (0)(5) + (-7)

y = 0 + -7

y = -7