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3 years ago

What is the value of x

Mathematics

1 answer:

Likurg_2 [28]3 years ago

5 0

Answer:

x=55⁰

Step-by-step explanation:

the line js supplementary so 180-125= 55

pls vote brainliest

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What kind of sequence? 8,4,2,1.... A geometric B arithmetic C neither

Zolol [24]

Answer:

A. geometric

Step-by-step explanation:

The rule is to divide by 2: if you are dividing or multiplying between each term, then the sequence is geometric.

Arithmetic sequences add or subtract the same number between each term.

Hope this helps.

8 0

3 years ago

Which expression could be substituted for y in the second equation to find the value of x?

EastWind [94]

value of x is $x=-\frac{29}{4}$ and value of y is $y=-\frac{9}{2}$

Step-by-step explanation:

We need to find Which expression could be substituted for y in the second equation to find the value of x

The given equations are:

$2x-y=-10\,\,\,(1)2x - 3y= -1\,\,\,\,(2)$

For putting value of y in second equation, we will find from equation 1

From equation 1:

$2x-y=-10\\-y=-10-2x\\y=10+2x$

Putting value of y i.e y=10+2x in equation (2) to find value of x

$2x-3y=-1\\2x-3(10+2x)=-1\\2x-30-6x=-1\\-4x=-1+30\\-4x=29\\x=\frac{29}{-4}\\x=-\frac{29}{4}$

So, now finding value of y by putting value of x= -29/4 in eq(1)

$2x-y=-10\\2(-\frac{29}{4})-y=-10\\-\frac{29}{2}-y=-10\\-y=-10+\frac{29}{2}\\ -y=\frac{-20+29}{2}\\ -y=\frac{9}{2}\\ y=-\frac{9}{2}$

So, value of x is $x=-\frac{29}{4}$ and value of y is $y=-\frac{9}{2}$

Keywords: System of equations

Learn more about System of equations at:

#learnwithBrainly

6 0

4 years ago

Simplify the expression and rationalize the denominator. 36a8b4 7c

il63 [147K]

6a^4b^2(square root)7c
7c

8 0

1 year ago

3^-3 x 10^-3 what is the value?

Semenov [28]

Answer:

$\frac{1}{27000}$ or $3.703$ × $10^{-5} \\$

Step-by-step explanation:

$3^{-3} \\$ is the same as $\frac{1}{3}^{3}$ or $\frac{1}{27}$ .

$10^{-3}$ is the same as $\frac{1}{10}^3$ or $\frac{1}{1000}$ .

So, $3^{-3}$ × $10^{-3}$ is basically $\frac{1}{3}^{3}$ × $\frac{1}{10}^3$ or $\frac{1}{27}$ × $\frac{1}{1000}$ , which both are simplified to $\frac{1}{27000}$ .

$\frac{1}{27000}$ can also be written as $3.703$ × $10^{-5} \\$ in scientific notation in decimal form.

7 0

2 years ago

Please explain how to do this.

damaskus [11]

Step-by-step explanation:

let the eqn be y = mx + b.

m = 200/(900 - 700) = 1

sub (700, 0):

0 = 700 + b

b = -700

therefore eqn is y = x - 700

Topic: coordinate geometry

If you like to venture further, do check out my insta (learntionary) where I regularly post useful math tips! Thank you!

5 0

3 years ago