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2 years ago

Please help me I need it it is my last question

Mathematics

2 answers:

d1i1m1o1n [39]2 years ago

7 0

Answer:

Step-by-step explanation:

anastassius [24]2 years ago

6 0

Answer:

The best deal is c. 5 pints of oil for $8

Step-by-step explanation:

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I am very confused, please help!

mojhsa [17]

Answer:

Step-by-step explanation:

Consider the equation:

$\dfrac{3}{4}(24-16x)=-\dfrac{2}{3}(18x-27)$

Use distributive property in both sides:

$\dfrac{3}{4}\cdot 24-\dfrac{3}{4}\cdot 16x=-\dfrac{2}{3}\cdot 18x+\dfrac{2}{3}\cdot 27\\ \\3\cdot 6-3\cdot 4x=-2\cdot 6x+2\cdot 9\\ \\18-12x=-12x+18$

Separate terms with x into the left part and terms without x into the right part:

$-12x+12x=18-18\\ \\0=0$

Since you get true equality 0 = 0, the equation is true for all real values of x. So, the equation has infinitely many solutions.

6 0

2 years ago

(5/10)^4 in exponential form

Whitepunk [10]

Answer:

$6.25 \times {10}^{ - 2}$

Step-by-step explanation:

${ \bigg( \frac{5}{10} \bigg) }^{4} \\ \\ = {(0.5)}^{4} \\ \\ = 0.0625 \\ \\ = 6.25 \times {10}^{ - 2}$

6 0

3 years ago

Read 2 more answers

. If α and β are the roots of

Lostsunrise [7]

Answer:

$18x^2+85x+18 = 0$

Step-by-step explanation:

Given Equation is

=> $2x^2+7x-9=0$

Comparing it with $ax^2+bx+c = 0$ , we get

=> a = 2, b = 7 and c = -9

So,

Sum of roots = α+β = $-\frac{b}{a}$

α+β = -7/2

Product of roots = αβ = c/a

αβ = -9/2

Now, Finding the equation whose roots are:

α/β ,β/α

Sum of Roots = $\frac{\alpha }{\beta } + \frac{\beta }{\alpha }$

Sum of Roots = $\frac{\alpha^2+\beta^2 }{\alpha \beta }$

Sum of Roots = $\frac{(\alpha+\beta )^2-2\alpha\beta }{\alpha\beta }$

Sum of roots = $(\frac{-7}{2} )^2-2(\frac{-9}{2} ) / \frac{-9}{2}$

Sum of roots = $\frac{49}{4} + 9 /\frac{-9}{2}$

Sum of Roots = $\frac{49+36}{4} / \frac{-9}{2}$

Sum of roots = $\frac{85}{4} * \frac{2}{-9}$

Sum of roots = S = $-\frac{85}{18}$

Product of Roots = $\frac{\alpha }{\beta } \frac{\beta }{\alpha }$

Product of Roots = P = 1

The Quadratic Equation is:

=> $x^2-Sx+P = 0$

=> $x^2 - (-\frac{85}{18} )x+1 = 0$

=> $x^2 + \frac{85}{18}x + 1 = 0$

=> $18x^2+85x+18 = 0$

This is the required quadratic equation.

5 0

2 years ago

Read 2 more answers

The cube of twice a number

raketka [301]

Answer:

The cube of twice a number.

Twice a quantity usually indicates to take two of the things in question; usually this indicates to multiply by 2. Thus "twice a number x" can be written symbolically as 2x. If this is part of a problem, say twice a number x is 6, then we can rewrite algebraically as 2x=6; dividing both sides by 2 yields x=3.

Step-by-step explanation:

have a nice day, please give me brainliest

3 0

3 years ago

Write the verbal sentence as an equation or an inequality: Four is greater than six times a number t. really need help can't rea

maw [93]

4 > 6*t

Number t refers to an unknown. In this case, t can only be 0, because 6*0 = 0, and 4 > 0 or four is greater than 0.

5 0

2 years ago