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3 years ago

Which number,when substituted for x ,makes the equation 4x+8=16 true??

Mathematics

1 answer:

Tom [10]3 years ago

3 0

X= 2 the answer would be 2 because 4x2 = 8 and 8+8= 16

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Please answer this quickly!

kari74 [83]

54/1,000

just do Length x Width x Height

7 0

3 years ago

At 12 noon, leslie recorded the temperature as 56 degrees f. The temperature had increased by 8 degrees f from 10am. The tempera

Marat540 [252]

Let the temperature at 10am be x, then
x + 8 = 56
x = 56 - 8 = 48 degrees F

Let y be the temperature at 8am, then
y - 2 = 48
y = 48 + 2 = 50 degrees.

4 0

3 years ago

Read 2 more answers

What is equivalent to 4x-2=38

Tom [10]

2x4 is the answer to 4x-2=38

7 0

2 years ago

Determine the equation of the graph shown y = a(x - h)^2 + k

LUCKY_DIMON [66]

Answer:

$y=-(x+1)^2+4$

Step-by-step explanation:

we know that

$y=a(x-h)^2+k$

Is the equation of a vertical parabola written in vertex form

where

(h,k) is the vertex

a is the leading coefficient

In this problem we have

The vertex is the point (-1,4)

$(h,k)=(-1,4)$

substitute

$y=a(x+1)^2+4$

Find the value of a

we have the ordered pair (0,3)

substitute the value of x and the value of y in the quadratic equation and solve for a

$3=a(0+1)^2+4$

$3=a+4\\a=3-4\\a=-1$

therefore

$y=-(x+1)^2+4$

4 0

3 years ago

Find the distance between the points (6,5√5) and (4,3√2).<br> 2, 2√2, 2√3

FromTheMoon [43]

Answer:

D= $\sqrt{(147-30\sqrt{10}}$

Step-by-step explanation:

Here we are required to find the distance between two coordinates. We will use the distance formula to find the distance

The distance formula is given as

$D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Here we are given two coordinates as

$(6,5\sqrt{5} ) , (4,3\sqrt{2} )$

Substituting these values in the Distance formula given above we get

$D=\sqrt{(6-4)^2+(5\sqrt{5} -3\sqrt{2}) ^2}$

$D=\sqrt{(2)^2+(5\sqrt{5})^2+(3\sqrt{2})^2-2*5\sqrt{5}*3\sqrt{2}}\\$

$D=\sqrt{4+125+18-2*15\sqrt{10}}\\D=\sqrt{147-30\sqrt{10}}\\$

Hence this is our answer

6 0

2 years ago