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4 years ago

THIS IS URGENT PLZ HELP ME!!!!!!!

Mathematics

1 answer:

levacccp [35]4 years ago

7 0

This is what it should look like. Compare it with yours and see where yours is wrong.
hope this helps!

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I need help answering these on multiplying and dividing fractions

Natali5045456 [20]

For multiplying fractions keep the fractions the way they are then times both numerators together then the denominators which should make a fraction then you usually simplify.

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3 years ago

Write an exponential function in the form y=ab^xy=ab

ivanzaharov [21]

Answer:

Step-by-step explanation:

let y=ab^x

x=0,y=18

18=ab^0=a

a=18

y=18b^x

when x=2,y=1152

$1152=18b^{2}\\b^{2}=\frac{1152}{18}=64=8^2\\b=8\\so~y=18(8)^x$

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3 years ago

Complete the steps in solving 4/9=x/36

Whitepunk [10]

Isolate the x. Note the equal sign. What you do to one side, you do to the other.

Cross multiply

(4/9)(9)(36) = (x/36)(36)(9)

(4)(36) = (x)(9)

Simplify

144 = 9x

Isolate the x. Divide 9 from both sides

144/9 = 9x/9

x = 144/9

x = 16

16 is your answer

hope this helps

3 0

3 years ago

Find the area of the triangle with vertices: q(3,-4,-5), r(4,-1,-4), s(3,-5,-6).

maw [93]

Answer:

(√6)/2 square units

Step-by-step explanation:

The area of a triangle is half the magnitude of the cross product of the vectors representing adjacent sides.

QR = (4-3, -1-(-4), -4-(-5)) = (1, 3, 1)

QS = (3 -3, -5-(-4), -6-(-5)) = (0, -1, -1)

The cross product is the determinant ...

$\text{det}\left|\begin{array}{ccc}i&j&k\\1&3&1\\0&-1&-1\end{array}\right|=-2i+j-k$

The magnitude of this is ...

|QR × QS| = √((-2)² +1² +(-1)²) = √6

The area of the triangle is half this value:

Area = (1/2)√6 . . . . square units

3 0

3 years ago

A little girl throws her jackstone ball horizontally out of the window with a velocity of 30 m/s. if the window is 3 m above the

Colt1911 [192]

Distance (d) is 23.46 meters
Workup in the photo below.
Good luck.

6 0

3 years ago