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3 years ago

Which of the following are solutions to the quadratic equation? x^2+3x-10=0

Mathematics

1 answer:

Nadusha1986 [10]3 years ago

7 0

Answer:

-5 and 2

Step-by-step explanation:

That is where it intersects on the x-axis, so therefore it is the solution.

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Help and explain explain !!!!!!!!!!

tigry1 [53]

Answer:

$x=-1\text{ or }x=11$

Step-by-step explanation:

For $a=|b|$ , we have two cases:

$\begin{cases}a=b,\\a=-b\end{cases}$

Therefore, for $18=|15-3x|$ , we have the following cases:

$\begin{cases}18=15-3x,\\18=-(15-3x)\end{cases}$

Solving, we have:

$\begin{cases}18=15-3x, -3x=3, x=\boxed{-1},\\18=-(15-3x), 18=-15+3x, 33=3x, x=\boxed{11}\end{cases}$ .

Therefore,

$\implies \boxed{x=-1\text{ or }x=11}$

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3 years ago

Can you draw a trapoziod with three right angels

artcher [175]

Yes. A trapezoid is defined as a quadrilateral with two sides parallel, so a trapezoid with three right angles is just a square!

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4 years ago

Find the value of x.

HACTEHA [7]

Answer:

what

Step-by-step explanation:

sure?

5 0

3 years ago

Please help me with geometry !! Been stuck a while

Nataly [62]

Answer:

area of circle having radius 3

is πr²=π*3²=9π square units

area of circle having radius 2

=πr²=π×2²=4π square units

again

area of big circle having radius [3+2]=5 units

=πr²=π×5²=25π square units

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4 0

3 years ago

Read 2 more answers

Can u help solve this W-5=5

leonid [27]

W-5=5
W= 5+5 (bringing -5 to the other side, it becomes +5)
At last, W=10.

8 0

4 years ago