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3 years ago

PLEASE HELP ME OUT IM FAILING MATH‍♂️ Thx

Mathematics

1 answer:

VashaNatasha [74]3 years ago

5 0

Ok I gotta I’ll help you right now

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What is the surface area of this triangular pyramid?

noname [10]

I believe it would be 44.75 sq yards

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2 years ago

A motorboat left a harbor and traveled to an island at an average rate of 10 knots. The average speed on the return trip was 10

Illusion [34]

Answer:

A on edu2020

Step-by-step explanation:

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3 years ago

Answer to this??? Need help

bekas [8.4K]

A) 2 and 7
B) 2 and 6
C)6 and 3

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3 years ago

Solve this question. a/7-3<0

valkas [14]

Answer:

$\boxed{\sf{a$

Step-by-step explanation:

You only need to isolate the term a to solve this problem.

Add by 3 from both sides.

$\sf{\dfrac{a}{7}-3+3$

Solve.

0+3=3

a/7<3

Multiply by 7 from both sides.

$\sf{\dfrac{7a}{7}$

Solve.

3*7=21

As a result, the solution is a<21, which is our answer.

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2 years ago

Determine the zeroes of 10x2−5=35

OLEGan [10]

Answer:

x = +2, x = -2

Step-by-step explanation:

The equation to solve in this problem is

$10x^2-5=35$

The first step we do is to subtract 35 on both sides of the equation, so we get:

$10x^2-5-35=0\\10x^2-40=0$

Now we simplify the equation by dividing both terms by 10:

$\frac{10x^2-40}{10}=0\\x^2-4=0$

Now we observe that the term on the left is the difference between two squares, so it can be rewritten using the property:

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

Where here,

a = x

b = 2

So we can rewrite the equation as:

$x^2-4=0\\(x+2)(x-2)=0$

And this equation is zero when either one of the two factors is zero, so the two solutions are:

$x+2=0\rightarrow x=-2\\x-2=0 \rightarrow x=+2$

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3 years ago