3 years ago

-3x + 10 = -5 What is the hypothesis?

Mathematics

1 answer:

Ierofanga [76]3 years ago

5 0

Answer:

Step-by-step explanation:

-3x = -5-10

-x=-15

therefore, x=15

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Pls Simplify the following. 81x 3-9x3" 81x3-3x3: asap

Ivahew [28]

Answer:

this is thenanswer of first question

243-3×3

243-9

234

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3 years ago

Cristina describes her shape.she says it has 3 equal sides that are 4 centimeters in lengths.it has no right angels.do your best

Snowcat [4.5K]

Three equal sides and no right angels is a triangle, since the sides are all the same it is an equilateral triangle.

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3 years ago

A2 + 42 = 52 i’ve done this equation over and over and can’t get it correct

Dominik [7]

Answer:

umm, a=3 I believe?

Step-by-step explanation:

4²=16, and 5²=25 so 25-16=9 and the square root of 9 is 3

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3 years ago

Read 2 more answers

How would 3 over 5 be Classified

kari74 [83]

Answer:

3/5 is expressed as 60% in terms of Percentage.

Let's convert the fraction 3/5 into percent. Now, 60/100 is expressed as 65% in terms of percentage.

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3 years ago

It’s been a while since I did Math but, in most scenarios, when you solve for an equation with only 1 x variable and you substit

patriot [66]

Let's replace every copy of x with 7 and simplify.

$\sqrt{5x+1}+9 = 3\\\\\sqrt{5*7+1}+9 = 3\\\\\sqrt{35+1}+9 = 3\\\\\sqrt{36}+9 = 3\\\\6+9 = 3 \ \text{ .... note the 6 on the left isn't negative}\\\\15 = 3\\\\$

Which is clearly false. This is probably the set of steps you followed to get "no solution".

Why is there no solution? Well let's subtract 9 from both sides to isolate the square root

$\sqrt{5x+1}+9 = 3\\\\\sqrt{5x+1}+9-9 = 3-9\\\\\sqrt{5x+1} = -6\\\\$

Recall that the result of a square root operation is never negative. The range of $y = \sqrt{x}$ and $y = \sqrt{5x+1}$ is the set of nonnegative numbers. There is no way we can have the left hand side result in -6

If there was a negative sign out front the square root and we have this instead

$-\sqrt{5x+1}+9 = 3\\\\$

then the answer would be x = 7

Unfortunately, there isn't such a negative sign, so we stick with "no solutions".

8 0

2 years ago