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Phantasy [73]
3 years ago
13

Without using a calculator, determine the number of real zeros of the function f(x) = x3 + 4x2 + x − 6.

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
5 0
I am pretty sure x= -0.5
mariarad [96]3 years ago
4 0

Answer:

ON PLATO in the empty box the type: 3

Step-by-step explanation:

(x-1) (x+3) (x+2) these are the factors which means there three of them :)

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4 0
2 years ago
What is V125 in simplest form?
kvv77 [185]

Answer:

5\sqrt{5}

Step-by-step explanation:

Using the rule of radicals

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab} , then

\sqrt{125}

= \sqrt{25(5)}

= \sqrt{25} × \sqrt{5}

= 5\sqrt{5}

6 0
3 years ago
What is the solution to the given system of equations?<br><br> y=4x-3<br><br> y=-x-13
Paraphin [41]
4x - 3 = -x - 13
4x + x = -13 + 3
5x = -10
x = -10/5
x = -2

y = 4x - 3
y = 4(-2) - 3
y = -8 - 3
y = -11

solution is (-2,-11)

4 0
2 years ago
Which relationship in the triangle must be true ?
Ivan

Answer:

Choice B. sin(B)=cos(90-B)

Step-by-step explanation:

That cofunction identity is the one you looking for...choice B.

If you aren't convinced or don't know that identity, then maybe this will help:

90-B is actually the same thing as saying A for this right triangle since A+B=90.

So choice B basically says sin(B)=cos(A)

Well let's find both sin(B) and cos(A)

sin(B)=b/c

cos(A)=b/c

Those are the same ratios!

So they are equal!

3 0
2 years ago
Read 2 more answers
If sales tax is 6% and you buy a shirt for $25 how much do you owe?
Leona [35]

Answer:

26.50

Step-by-step explanation:

First we need to calculate the sales tax

25 * 6%

Changing to decimal from

25 * .06

1.50

Then we add the tax to the cost of the shirt

25+1.50

26.50

We owe 26.50

7 0
2 years ago
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