All categories

4 years ago

What is x squared - v = w squared making x the subject?

Mathematics

1 answer:

Verdich [7]4 years ago

3 0

$x^2-v=w^2\\
x^2=w^2+v\\
x=-\sqrt{w^2+v} \vee x=\sqrt{w^2+v}$

You might be interested in

If (2x^ay^b)^3 = 8x^12y^27, find the value of “a” and “b”.

ad-work [718]

a = 4, b= 9. Explanation: Since all of it is to the power of 3, we can divide the exponents to of the results (right side of the equation). 12/3=4, 27/3=9. Hope this helps.

7 0

2 years ago

PLEASEEEE HELPPP MEEE <br> 6 and 7 PLEASE

Nitella [24]

Answer:

Question 6

$\left(5a+2\right)\left(a+4\right)=\:5a^2+22a+8$

Question 7

The width is 2x.

Step-by-step explanation:

Question 6)

Expand

$(5a+2)(a+4)$

solving to the expand

$(5a+2)(a+4)$

$\mathrm{Apply\:FOIL\:method}:\quad \left(a+b\right)\left(c+d\right)=ac+ad+bc+bd$

$a=5a,\:b=2,\:c=a,\:d=4$

so the expression becomes

$=5aa+5a\cdot \:4+2a+2\cdot \:4$

$=5aa+5\cdot \:4a+2a+2\cdot \:4$

$=5a^2+20a+2a+8$

adding similar elements: 20a+2a=22a

$=5a^2+22a+8$

Hence,

$\left(5a+2\right)\left(a+4\right)=\:5a^2+22a+8$

Question 7)

Given

$A\:=\:8x^2$

$l=4x$

Using the formula

width = Area/Length

$=\:\frac{8x^2}{4x}$

$=2x$ ∵ $\mathrm{Divide\:the\:numbers:}\:\frac{8}{4}=2$

Therefore, the width is 2x.

5 0

3 years ago

there are 110 calories per 28.4 grams of cereal X.find how many calories are in 45.44 grams of this cereal

Fittoniya [83]

Calorie : Cereal
110 : 28.4
x : 45.44
Cross multiply.
it will give you
<span>x=1.6</span>

5 0

4 years ago

Jonathan spins the spinner 10 times. What is the theoretical probability that it stops on the black sector on the last spin?

gayaneshka [121]

1 over 4. It asks for the last spin only.

7 0

4 years ago

567 children eating lunch. 323 children milk and 136 drinking orange juice. The rest we're drinking apple juice. How many childr

Elza [17]

Answer:

108 students were drinking apple juice

Step-by-step explanation:

1. Add 323 + 136

2. Whatever that number is subtract it by 567

3. Whatever that is will be the number of students drinking apple juice

4. THE END!!!

7 0

3 years ago

Read 2 more answers