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3 years ago

I need help can yall help me with math

Mathematics

1 answer:

joja [24]3 years ago

7 0

Answer:

2, 4 by plugging in the answer choices

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Number 65 please. Show work. Thanks in advance.

iris [78.8K]

No worries. Perimeter = 2x width + 2x height 66 x 2 = 132 338 - 132 = 206 206 / 2 = 103 The length is 103 meters.

3 0

3 years ago

Meghan's dog spray eats 4 ¹/4 cups of food each day. Explain how megan can determine how much food to give sparky if she needs t

Alexxandr [17]

Answer:

$\frac{17}{6}\ cups$

Step-by-step explanation:

$Total\ required\ food\ for\ sparky=4\frac{1}{4}\ cups\\\\Total\ required\ food\ for\ sparky=\frac{17}{4}\ cups\\\\Megan\ needs\ to\ feed\ him\ only\ \frac{2}{3}\ as\ much\\\\Food\ given\ by\ Megan=\frac{2}{3}\times Total\ required\ food\ for\ sparky\\\\Food\ given\ by\ Megan=\frac{2}{3}\times \frac{17}{4}\\\\Food\ given\ by\ Megan=\frac{17}{6}\ cups$

6 0

4 years ago

Eight boys and fifteen girls are in a classroom. What is the probability of choosing a boy or a girl from the

yarga [219]

Answer:

it would be 8 to 15

Step-by-step explanation:

you would write it as a fraction 8/15. then, you would try and simplify it. because you cant simplify 8/15 anymore, your answer would be 8/15! hope this helps :)

5 0

3 years ago

Solve the equation x^6+3x^5+x^4-5x^3-6x^2-2x=0 in the real number system

koban [17]

First, pull out a factor of $x$ .

$x^6+3x^5+x^4-5x^3-6x^2-2x=x(x^5+3x^4+x^3-5x^2-6x-2)$

Notice that when $x=-1$ (which you can arrive at via the rational root theorem), you have

$(-1)^5+3(-1)^4+(-1)^3-5(-1)^2-6(-1)-2=-1+3-1-5+6-2=0$

which means you can pull out a factor of $x+1$ . Upon dividing you get

$\dfrac{x^5+3x^4+x^3-5x^2-6x-2}{x+1}=x^4+2x^3-x^2-4x-2$

The rational root theorem will come in handy again, suggesting that $x=-1$ appears a second time as a root, which means

$\dfrac{x^4+2x^3-x^2-4x-2}{x+1}=x^3+x^2-2x-2$

Now this is more readily factored without having to resort to the rational root theorem. You have

$x^3+x^2-2x-2=x^2(x+1)-2(x+1)=(x^2-2)(x+1)$

so in fact, $x=-1$ shows up as a root for a third time.

So, you have

$x^6+3x^5+x^4-5x^3-6x^2-2x=x(x+1)^3(x^2-2)=0$

Two roots are obvious, $x=0$ and $x=-1$ (with multiplicity 3). The remaining two are given by

$x^2-2=0\implies x^2=2\implies x=\pm\sqrt2$

3 0

4 years ago

A triangular prism has a base area of 120 square centimeters and a height of 4 centmeters

Anastaziya [24]

If you're looking for the area, it is 480 cm squared.

6 0

4 years ago

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