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2 years ago

16

Mathematics

2 answers:

daser333 [38]2 years ago

8 0

Answer:

Step-by-step explanation:

around 60 miles an hour.. you just divide 240 by 4

alexdok [17]2 years ago

5 0

Answer:

60 miles per hour

Step-by-step explanation:

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Why is -9an acceptable answer to the equation x2=81 ?

Arte-miy333 [17]

Answer:

X=9 or x=-9

Step-by-step explanation:

X^2=81

Can be written as

x^2-81=0

Factorize by the property:

a^2-b^2=(a-b)(a+b)

So the expression becomes:

(x-9)(x+9)=0

Therefore, either x-9=0or x+9=0

Then the solutions are x=9 or x=-9

8 0

3 years ago

Read 2 more answers

A solid oblique pyramid has a regular hexagon base with an area of 54_/3 cm^2 and an edge length of 6cm. Angle BAC measures 60 d

Lady_Fox [76]

Answer: The answer is (C) 324 cubic cm.

Step-by-step explanation: As given in the question, given a solid oblique pyramid with a regular hexagonal base and area 54√3 cm². Also, the edge length of the base is 6cm and ∠BAC = 60°.

We are to find the volume of the pyramid.

The formula for finding the volume of a pyramid is given by

$V=\dfrac{1}{3}b\times h,$

where, 'b' is the base area and 'h' is the perpendicular height of the pyramid.

Here, b = 54√3 cm², h = ?

Now, from the right-angled triangle ABC, we have

$\dfrac{\textup{BC}}{\textup{AC}}=\tan 60^\circ\\\\\Rightarrow \dfrac{h}{6}=\sqrt 3\\\\\Rightarrow h=6\sqrt 3.$

Therefore, the volume of the pyramid is

$V=\dfrac{1}{3}b\times h=\dfrac{1}{3}\times 54\sqrt 3\times 6\sqrt 3=324.$

Thus, the required volume is $V=324~\textup{cm}^3.$ This makes (C) as the correct option.

5 0

3 years ago

What is 0.95 rounded off to the nearest whole number

mihalych1998 [28]

1.00 would be your answer because 95 rounded up is 100. So, 0.95 is closest to 1.00

8 0

2 years ago

Can someone please help me with this question?

xz_007 [3.2K]

Uh oh speggego's im telling teacher lol

3 0

2 years ago

Select the correct answer from the drop-down menu.<br> Fill in the missing number in the equation.

kramer

Answer:

what equation

Step-by-step explanation:

what equation

5 0

3 years ago