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2 years ago

PLZ HURRY IT'S URGENT!!!!

Mathematics

1 answer:

garri49 [273]2 years ago

4 0

i think the answer is B, hope this helped.

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Can bbn I please have help

Sveta_85 [38]

Answer:

question 9

= –12

while question 11=, x= –72

Step-by-step explanation:

question 9=

u= –16+4= –12

question 11=

cross multiplication

x = -36 multiplied by 2 =

-72

I HOPE THIS HELPED IF WRONG IM SORRY

3 0

2 years ago

Please simplify 7-2(3-8x)

aliya0001 [1]

The answer is 1+16x,

:))

4 0

3 years ago

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If 2x⁴ + 2y⁴ + 2z⁴ = 144, what is the mean of x⁴, y⁴ and z⁴

Margarita [4]

Answer: 24

Step-by-step explanation:

Given

$2x^4+2y^4+2z^4=144$

dividing whole equation by 2, we get

$\Rightarrow x^4+y^4+z^4=72$

Mean is given by the sum of the value of entities divided by the total no of entities

$\Rightarrow \text{Mean}=\dfrac{x^4+y^4+z^4}{3}\\\\\Rightarrow \text{Mean}=\dfrac{72}{3}\\\\\Rightarrow \text{Mean}=24$

5 0

2 years ago

What is the equation of the line (in slope-intercept form) that passes through the point (5,−1) and is parallel to the line y=2x

tatyana61 [14]

Answer:

Step-by-step explanation:

$\text{Let}\\\\k:y=m_1x+b_1\\\\l:y=m_2x+b_2\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\l\ \parallel\ k\iff m_1=m_2\\\\===============================$

$\text{The slope-intercept form of an equation of a line:}\\\\y=mx+b\\\\m-slope\\b-y-intercept\\\\==========================$

$\text{We have the equation of a line:}\ y=2x-7\to m_1=2.\\\\\text{The slope of a parallel line:}\ m_2=m_1=2.\\\\\text{We have the equation:}\\\\y=2x+b\\\\\text{Put the coordinates of the point (5, -1) o the equation:}\\\\-1=2(5)+b\\-1=10+b\qquad\tex\text{subtract 10 from both sides}\\-11=b\to b=-11\\\\\text{Finally:}\\\\y=2x-11$

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2 years ago

a shopkeeper blends3 types of tea A,B,C in a ratio 6:4:7. if the mass ofv tea C in the mixture is 28kg find the difference in th

VladimirAG [237]

<span>A would be 6/7 x 28kg = 24 kg B would be 4/7 x 28kg = 16 kg so the difference of the masses is 24 - 16 = 8kg</span>

7 0

2 years ago

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