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3 years ago

I need help plzzz

Mathematics

1 answer:

PSYCHO15rus [73]3 years ago

3 0

Answer: I only know 6 but it's something right? They're parallelograms.

Step-by-step explanation:

They're parallelograms because the sides of the shapes are across from one another and the sides will never touch and create an angle

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A student received an 82% on an exam. If there were 50 questions on the exam, which ratio would show the number of questions ans

cluponka [151]

Easy

82% correct
82 out of 100 correct
82/100 of ttoal correct
total=50
82/100 times 50=
41/50 times 50=41 correct

ratio is 41:50

B is answer

5 0

3 years ago

Read 2 more answers

Please help^^i will reward welllll

VladimirAG [237]

Answer:

1.7362

Step-by-step explanation Factor the expression

Use Radical Rules

Calculate the product

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3 years ago

Please help will mark Brainly!

MakcuM [25]

Answer:

The table doesn't display a linear relationship because the slope doesn't stay constant throughout the whole table.

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3 years ago

The data set represents a month-to-month progression of gasoline prices over the course of several months in an unspecified city

Tresset [83]

The quadratic regression equation for this data set is $\rm y=-0.143x^2+0.59x+2.82\\$ .

<h3>What is the general form of a quadratic equation?</h3>

The general form of the quadratic equation is given by;

$\rm ax^2+bx+c=0$

Where; a, b, and c are the constants.

x; 0 1 2 3 4 5

y; 2.82 3. 29 3. 46 3. 33 2. 88 2. 24

From the table when the value of x = 0 the value of y is 2.82.

Then,

$\rm y=ax^2+bx+c\\\\x=0\\\\2.82=a0^2+b(0)+c\\\\c=2.82$

From the table when the value of x = 3 the value of y is 3.33.

$\rm y=ax^2+bx+c\\\\x=3\\\\2.82=a(3)^2+b(3)+c\\\\9a+3b+2.82=2.82\\\\9a=-3b\\\\b=-3a\\\\$

From the table when the value of x = 5 the value of y is 2.24.

$\rm y=ax^2+bx+c\\\\x=3\\\\2.24=a(5)^2+(-3a)(5)+c\\\\25a-15a+2.82=2.24\\\\40a=2.24-2.82\\\\10a=-0.68\\\\a= \dfrac{-0.68}{10}\\\\a=-0.143$

And the value of b is;

$\rm b=3a\\\\b=3(-0.14)\\\\b=0.59$

Therefore,

The quadratic regression equation for this data set is;

$\rm y=ax^2+bx+c\\\\y=-0.143x^2+0.59x+2.82\\\\$

Hence, the quadratic regression equation for this data set is $\rm y=-0.143x^2+0.59x+2.82\\$ .

To know more about the Quadratic equation click the link given below.

brainly.com/question/14935613

8 0

2 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!<br><br> What is (98 - 2n) equal to?

Vladimir79 [104]

Answer: 946

<u>Step-by-step explanation:</u>

$\sum^{11}_{1}(98-2n)\\\\a_1=98-2(1)\\.\quad=98-2\\.\quad=96\\\\a_{11}=98-2(11)\\.\quad=98-22\\.\quad=76\\\\\\S_n=\dfrac{a_1+a_{11}}{2}\cdot 11\\\\.\quad=\dfrac{96+76}{2}\cdot11\\\\.\quad=\dfrac{172}{2}\cdot11\\\\.\quad=86\cdot11\\\\.\quad=946$

8 0

3 years ago