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3 years ago

Can someone please answer ASAP!

Mathematics

2 answers:

Alik [6]3 years ago

8 0

Answer:

I want to answer but their is no question

katrin [286]3 years ago

4 0

Answer:

well, where's the question tho?

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Can you solve for a, b and c? 2a – 3b = -5 4a + 3b = 17 5c - 2a = 1

MaRussiya [10]

Pills abs poisoned by a girl with you a

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4 years ago

Help please I need 5 points total. i need 2 to left of vertex. i need vertex. i need 2 to right of vertex. Please, quickly, I am

zlopas [31]

We are given with a quadratic equation which represents a Parabola , we need to find the vertex of the parabola , But let's recall that , For any quadratic equation of the form ax² + bx + c = 0 , the vertex of the parabola is given by ;

${\quad \qquad \boxed{\bf{Vertex = \left(\dfrac{-b}{2a},\dfrac{-D}{4a}\right)}}}$

Where , D = b² - 4ac (Discriminant)

Now , On comparing the given equation with ax² + bx + c , we have

⇢⇢⇢ a = 1 , b = - 10 , c = 27

Now , Calculating D ;

${:\implies \quad \sf D=(-10)^{2}-4\times 1\times 27}$

${:\implies \quad \sf D=100-108}$

${:\implies \quad \bf \therefore \quad D=-8}$

Now , Calculating the vertex ;

${:\implies \quad \sf Vertex =\bigg\{\dfrac{-(-10)}{2\times 1},\dfrac{-(-8)}{4\times 1}\bigg\}}$

${:\implies \quad \sf Vertex = \left(\dfrac{10}{2},\dfrac{8}{2}\right)}$

${:\implies \quad \bf \therefore \quad Vertex = (5,2)}$

Hence , The vertex of the parabola is at (5,2)

Note :- As the Discriminant < 0 . So , the equation will have imaginary roots .

Refer to the attachment for the graph as well .

5 0

3 years ago

In a basket, there are 7 male kittens and 5 female kittens. Donna randomly selects one, puts it back, and then randomly selects

andre [41]

We are given that

number of male kittens =7

number of female kittens =5

total number of kittens = number of male kittens + number of female kittens

total number of kittens = 7+5

total number of kittens = 12

now, we can find probability of selecting female kittens

P(female kittens)=(number of female kittens)/( total number of kittens)

P(female kittens) is

$=\frac{5}{12}$

now, we are given that

Donna randomly selects one, puts it back, and then randomly selects another

so, both probability are independent

so,

the probability that both selections were female kittens is

=P(female kittens)*P(female kittens)

now, we can plug values

the probability that both selections were female kittens is

$=\frac{5}{12}\times \frac{5}{12}$

$=\frac{25}{144}$ ...............Answer

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3 years ago

Choose an equivalent ratio. 4:9 A) 27:40 B) 27:18 C) 12:27 D) 16:27

jek_recluse [69]

Answer:

The answer is C.

Step-by-step explanation:

The answer is C because both numbers in 4:9 can be multiplied by the same factor (3) to get 12:27, the answer. No other choice works because they require two different number factors, not just one, which means they aren't equivalent ratios to 4:9.

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3 years ago

A rectangular prism has a length of 2 1/2 cm, a width of 2 1/2 cm, and a height of 5 cm. Justin has a storage container for the

julsineya [31]

The volume of the prism is 31.25 cm cubed.
Therefore the container has a higher volume.
35 - 31.25 is 3.75.
The difference is 3.75

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4 years ago