Reflect the following over the y-axis and find the coordinates of A':

Please I need help with this question. No 22. Is very important. Thank you.

kvv77 [185]

Answer:

C. $132m^3$

Step-by-step explanation:

Height = 4

Length = 6

Breadth = 7

Note : We were asked to find volume of the cuboid

Since, it has a base in the shape of a right angle triangle , we need to find the Area of the trapezium before calculating the total volume.

Step 1

Find the area of the trapezium

Area of a trapezium = $\frac{1}{2} (a+b)h$

$\frac{1}{2} (4+7)*4$

$\frac{1}{2} (11)4\\$

$\frac{1}{2} *44\\= 22$

Step 2

Calculate the volume of the cuboid

Volume of a cuboid =length× breadth × height

In this case , the volume will be our length × Area of a trapezium

V= 6 × 22

V = $132m^3$

6 0

4 years ago

Simplify the radical expression. √45 + √20 - √5

viva [34]

√45 = √9√5 = 3√5
√20 = √4√5 = 2√5

3√5+2√5-√5=4√5

answer = 4√5
:)

5 0

3 years ago

C Solve for m: 3/4m - 3 = 9 May I please have help!

MAVERICK [17]

Answer:

m=16

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : 3/4*m-3-(9)=0

Step 1: Simplify 3/4

Equation at the end of step 1: ((3/4 x m) - 3) - 9 = 0

Step2: Subtracting a whole from a fraction

Rewrite the whole as a fraction using 4 as the denominator :

3 3 • 4

3 = — = —————

1 4

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

3m - (3 • 4) 3m - 12

—————4——————— = ———4————

When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

3•(m-16)

———————— • 4 = 0 • 4

4

Now, on the left hand side, the 4 cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

3 • (m-16) = 0

6.2 Solve : 3 = 0

This equation has no solution.

A a non-zero constant never equals zero.

Solve : m-16 = 0

Add 16 to both sides of the equation :

m = 16

6 0

3 years ago

Factor −5x2 + 10x. −5x(x + 2) 5(−x2 + 10x) 5x(−x + 2) x(5x + 10)

Hitman42 [59]

${ \red{ \bold{option \: (c)}}}$

Step-by-step explanation:

${ \purple{ \tt{ { - 5x}^{2} + 10x}}}$

Take ${ \purple{ \tt{5x}}}$ as common. Then,

${ \purple{ \tt{5x( - x + 2)}}}$

4 0

2 years ago

I’m putting the right answer which is “6” but the computer keeps telling me I’m wrong, I don’t understand, what else is there to

iragen [17]

You may have have forgotten to find the measure of A. Which would by using your 6 that you got would be 19.

16X-6=90

96=16X

X=6

8X6-29

48-29

19

3 0

3 years ago