3 years ago

Which equation can be simplified to find the inverse of y = x2 – 7?

Mathematics

1 answer:

iragen [17]3 years ago

3 0

The last one is right

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This graph relates the volumes of triangular pyramids with a base area of 12 square inches and their heights.

Nikolay [14]

Answer:

$V=40\ in^3$

Step-by-step explanation:

The graph is not attached, however we know that, the volume of a triangular pyramid is given by the formula

$V=\frac{1}{3}Bh$

where

B is the area of the triangular face

h is the height of the pyramid

we have

$B=12\ in^2\\h=10\ in$

substitute the given values

$V=\frac{1}{3}(12)(10)=40\ in^3$

3 0

3 years ago

A big cruise ship dropped anchor off the Caribbean island of Barbuda. The heavy anchor was released from a height of

WINSTONCH [101]

54+9= 63 m = distance and time=35 sec hence, speed= 63/35=9/5=1.8 m/s

time taken to reach water surface= distance/speed=54/1.8=30 sec

5 0

2 years ago

HURYYYYYYYYYYYYYYYYYYYYYY

Crazy boy [7]

Answer:

The answer is C.

Step-by-step explanation:

Hope this helps!

5 0

2 years ago

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4x+11y=7 4x+3y=-1 what are the steps

andreev551 [17]

Answer:

x = -1, y = 1

Step-by-step explanation:

Given that:

$\begin{bmatrix}4x+11y=7\\ 4x+3y=-1\end{bmatrix}$

Isolate x for 4x + 11y = 7 which ⇒ $x=\frac{7-11y}{4}$

Substitute $x=\frac{7-11y}{4}$ into the equation: which is:

$\begin{bmatrix}4\cdot \frac{7-11y}{4}+3y=-1\end{bmatrix}$

Drop Down to:

$\begin{bmatrix}7-8y=-1\end{bmatrix}$

Isolate y for 7-8y = -1: y = 1

Thus, $x=\frac{7-11y}{4}$

Substitute y = 1

Hence,

$x=\frac{7-11\cdot \:1}{4}=-1$

Solution ⇒ x = -1 and y = 1

~learn with lenvy~

6 0

1 year ago

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How can I determine whether fractions are considered decimals

ArbitrLikvidat [17]

Yes they are but just in a different form. Fractions can be converted to a decimal. 3/5 can be shown as .6. Hope I helped!

3 0

2 years ago