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frozen [14]
3 years ago
14

Please help me with this will give Brain

Mathematics
1 answer:
blondinia [14]3 years ago
3 0
38.4 that’s the answer
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How do I do this?? I’m very confused
Novay_Z [31]
Y=((square root of 2)+1)
c = 2.2403703492
e = 5.71307488659

1) (y-1)^2 =2
so we can concludes that y-1 = squareroot of 2
so ((squareeroot of 2+1) - 1)^2 = 2

2)First we can convert 21÷2 fraction to decmial form which is 10.5
so our equation would be (c+1)^2= 10.5
so c+1 is the sqaureroot root of 10.5
so c would be the (square root of 10.5)-1

3)We can again convert those fractions to decimals so 3/2=1.5 and 71/4 =17.75
so our equation would be (e-1.5)^2=17.75
so (e-1.5) is the square root of 17.75
so e=((square root of 17.75)+1)
8 0
3 years ago
4. Simplify the expression:
zmey [24]

Answer:

A) 2x^2+5x+1

Step-by-step explanation:

7x^2-6+4x+7-5x^2+x

7x^2-5x^2+4x+x-6+7

2x^2+5x-6+7

2x^2+5x+1

7 0
3 years ago
If the expression ax(4x − 2y − 3) simplifies to 24x2− 12xy − 18, what must be the value of a? i need help
Sedaia [141]

Answer:

6

Step-by-step explanation:

so simply look at the x^{2} you know that (ax)(4x)=4a*x^{2} = 24x^{2},

4a = 24  =>  a = 6

Done.

8 0
3 years ago
I’m confused on this one
Ghella [55]

In a parallelogram, the opposite angles will be congruent to each other.


In this parallelogram, angles B and C are congruent, and angles A and D are congruent.


We will work on angles B and C first. Set the two angles to equal each other:


12x + 6 = 6x + 66


Subtract 6 from both sides:


12x = 6x + 60


Subtract 6x from both sides:


6x = 60


Divide both sides by 6 to get x by itself:


\boxed{x = 10}


x will equal 10.


Set angles A and D to equal each other:


54 = 3y


Divide both sides by 3 to get y by itself:


\boxed{y = 18}


y will equal 18.


The x and y values that make this quadrilateral a parallelogram will be x = 10, and y = 18.

3 0
4 years ago
Spends at most 30, buys boxes of crayons that cost 2 per box, also buys a poster for 5. Wants to know how many boxes of crayons
My name is Ann [436]

Answer:

for 15 crayons box she can spend

Step-by-step explanation:

The computation of the number of crayons for which she can spend is shown below:

Given that

She can spend $30

And, the cost is 2 per box

So, for the number of crayons for which she can spend is

= $30 ÷ 2

= 15 crayons box

Hence, for 15 crayons box she can spend

The same would be relevant

4 0
3 years ago
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