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3 years ago

20pts!!! PLS HELP!!!

Mathematics

1 answer:

vodka [1.7K]3 years ago

5 0

Answer:

(x - 1) x (5x + 4)

Step-by-step explanation:

5 x 2 – 4 = 6

5 x 4 – 4 = 16

6 x 2 – 11x – 4 = 56

5 x 2 – x – 4 = (x - 1) x (5x + 4)

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Find the surface area and the volume of the figure. Round to the nearest tenth.

natima [27]

The answer is the circled number in the box hope this helps sss

7 0

3 years ago

A survey of households in a small town showed that in 500 of 1,200 sampled households, at least one member attended a town meeti

andre [41]

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Step-by-step explanation:

4 0

3 years ago

X² - 8x - 33=0<br> complete the square

Andreas93 [3]

<h2>Answer:</h2><h2></h2><h2> $\boxed{x_{1}=-3} \\ \\ \boxed{x_{2}=11}$ </h2>

<h2>Explanation:</h2>

Step 1. Write $x^2 - 8x - 33=0$ in the form $x^2+2ax+a^2=0$

$2a=-8\quad :\quad a=-4$

Step 2. Add and subtract $(-4)^2$ to the left side of the equation

$x^2-8x-33+\left(-4\right)^2-\left(-4\right)^2=0 \\ \\ \\ But: \\ \\ x^2+2ax+a^2=\left(x+a\right)^2 \\ \\ x^2-8x+\left(-4\right)^2=\left(x-4\right)^2$

Step 3. Complete square

$\left(x-4\right)^2-33-\left(-4\right)^2=0 \\ \\ \left(x-4\right)^2-49=0 \\ \\ (x-4)=\pm \sqrt{49} \\ \\ x-4=\pm 7 \\ \\ \boxed{x_{1}=-3} \\ \\ \boxed{x_{2}=11}$

8 0

3 years ago

Evelyn is using her grandmother's pancake recipe, but she wants to make 40% more pancakes than the recipe usually prepares. If h

Aleks04 [339]

(C) 7/10 cup is the correct answer

Step-by-step explanation:

First of all we will calculate the 40% of grandmother's recipe then add it to the given flour in grandma's recipe

So,

The amount of flour in grandma's recipe = F_g = 1/2 cups

Calculating percentage

$=40\%\ of\ \frac{1}{2}\\=\frac{40}{100}*\frac{1}{2}\\=\frac{2}{10}$

So Evelyn needs to add 2/10 cups more to the original quantity.

So,

Flour used by Evelyn:

$=\frac{1}{2}+\frac{2}{10}\\\\=\frac{5+2}{10}\\\\=\frac{7}{10}\ cups$

Hence,

(C) 7/10 cup is the correct answer

Keywords: Percentage, Quantity

Learn more about percentage at:

#LearnwithBrainly

3 0

4 years ago

What is the slip of the line through (-2, 5) and (4,9)

alexgriva [62]

Hey there! :)

I think you mean "slope".

Slope = <u>y₂ - y</u>₁ = <u>difference in y</u>
x₂ - x₁ difference in x
<u>
y</u>₂ = 9
y₁ = 5

9 - 5 = 4

x₂ = 4
x₁ = -2

4 - (-2) = 6

Difference in y ⇒ <u>4</u>
Difference in x ⇒ 6

Slope = <u>4</u> ⇒ <u>2</u>
6 ⇒ 3

2/3 is the slope

Hope this helps :)

3 0

3 years ago