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2 years ago

Need help plzzzzz helpppp 20 points and if right I will mark brainlest

Mathematics

1 answer:

shtirl [24]2 years ago

8 0

Answer:

Hi! Okay so i tried to find all the x and y intercepts that matched with (-4,7) and the closest one is C I'm not 100% sure its correct but its the only one that makes the most sense, its coordonated are (-8,4) i'm so sorry if u get it wrong

Step-by-step explanation:

☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆

☆Don't worry i wont ask for brainliest this time☆

Have a nice day!!!!!!!

- Brooklynn Deka

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Un prisma cuadrangular regular tiene 4 m de arista de la base y 6m de altura Calcula el area y el volumen

mario62 [17]

Answer:

El área y volumen del prisma cuadrangular mencionado son respectivamente:

<em>Área =</em> $16m^{2}$
<em>Volumen =</em> $96m^{3}$

Step-by-step explanation:

Para solucionar este ejercicio debes recordar que un prisma cuadrangular tiene como base y como superficie cuadrados, por lo tanto, para calcular el área de dicho cuadrado puedes utilizar la siguiente fórmula:

<em>Área de un cuadrado = </em> $arista^{2}$

Ya que el ejercicio nos da el valor de la arista (4 metros), podemos reemplazarla en la ecuación y calcular:

Área de un cuadrado = $(4m)^{2}$
Área de un cuadrado = $16m^{2}$

Por último, para calcular el volumen debes multiplicar el área superficial, el área del cuadrado calculado, por la altura del prisma, cuyo valor dentro del enunciado es de 6 metros, de esta forma:

<em>Volumen de un prisma cuadrangular = área superficial * altura</em>
Volumen de un prisma cuadrangular = $16m^{2}$ * $6 m$
Volumen de un prisma cuadrangular = $96m^{3}$

Como puedes ver tras los cálculos, <u><em>el área superficial del prisma es de </em></u> $16m^{2}$ <u><em> y su volumen es </em></u> $96m^{3}$ .

7 0

2 years ago

A local little league has a total of 85 players, of whom 20% are left-handed. How many left-handed players are there?

tankabanditka [31]

Answer:

68 i think

Step-by-step explanation:

7 0

2 years ago

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John has 12 pounds of dog food and is going to separate it into 3/4 pound portions. How many portions of dog food will he have?

NNADVOKAT [17]

16 portions

explanation:

12 / 3/4

= 12 * 4/3

= 4*4 = 16

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2 years ago

Margie is standing on a bridge looking at the river below. She throws a rock over the bridge with an initial

Marina CMI [18]

<h2>Explanation:</h2><h2></h2>

Here we know that Margie is standing on a bridge looking at the river. She throws a rock over the bridge with an initial velocity of 60 ft/sec. The height, h, of the rock at the rime t seconds after it was thrown can be modeled by the equation:

$h(t) = -16t^2+60t+72$

To calculate how long will it take for the rock to reach the surface of the water, we need to set $h(t)=0$ . So:

$0 = -16t^2+60t+72 \\ \\ \\ \text{Using quadratic formula}: \\ \\ t=\frac{-b \pm \sqrt{b^2-4ac}}{2a} \\ \\ \\ a=-16 \\ \\ b=60 \\ \\ c=72 \\ \\ \\ t=\frac{-60 \pm \sqrt{60^2-4(-16)(72)}}{2(-16)} \\ \\ t=\frac{-60 \pm \sqrt{60^2-4(-16)(72)}}{2(-16)} \\ \\ t=\frac{-60 \pm \sqrt{8208}}{-32} \\ \\ t_{1}=4.70 \\ \\ t_{2}=-0.95$

Given that time can't be negative, we just choose the positive value. Therefore, <em>it will take 4.70 seconds for the rock to reach the surface water.</em>

6 0

3 years ago

A recipe of pasta makes enough for eight servings. How many servings can be made using 4/8 of each ingredient in the recipe?

Sedaia [141]

You could only make 4, as that is half of the amount of materials needed to make 8.

4 0

3 years ago

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