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3 years ago

7

Find the value of x.

1 answer:

spin [16.1K]3 years ago

8 0

Answer: x=138

Step-by-step explanation: I did 180-45=135

so I did 138-3=135

sorry if you don't understand anything I said

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4x^2 - 24x + 7 = 3<br> I don't understand how to get to the final answer of <br> x= 3 ± 2sqrt2

sergey [27]

4x² - 24x +7-3 =0
4x² - 24x + 4=0 /:4
x² - 6x +1=0
Use formula

$x = \frac{-b+/- \sqrt{ b^{2}-4ac } }{2a} 

For our equation a=1, b= - 6, c = 1

x= (6+/- \sqrt{36-4)}/2 = \frac{-6+/- \sqrt{32} }{2} = \frac{-6+/- \sqrt{16*2} }{2} = \frac{-6+/-4 \sqrt{2} }{2} 

= -3 +/- 2\sqrt{2} 
$

8 0

3 years ago

hjlf

Step-by-step explanation:

Charges per page = $0.08

Amount Lionel paid = $20.00

No of pages = 20 ÷ 0.08 = 250 pages

8 0

4 years ago

Read 2 more answers

Can somebody plz help draw the spinner with these probabilities on the question like take a pic of how it looks like or explain

DanielleElmas [232]

I will draw a rough figure, you can draw it neatly.

Probability =

Probability = No. of favourable outcomes/ Total no. of outcomes

Probability = No. of favourable outcomes/ Total no. of outcomesTotal number of outcomes = 4

So, here:

P(2) = 2/4 = 1/2

P(1) = 1/4

P(3) = 1/4

P(4) = 0

Here, the probability of getting 2 is ½.

Probability of getting 1 is ¼.

Probability of getting 3 is ¼.

Probability of getting 4 is 0.

6 0

3 years ago

Find the perimeter of a regular polygon with an interior angle of 90° and side length 3.5 ft.

PSYCHO15rus [73]

Answer:

p=14 ft

Step-by-step explanation:

The figure that meets these conditions is the square

The perimeter:

4(3.5) = 14 ft.

Hope this helps

6 0

2 years ago

Rachel is collecting donations for the local animal shelter. So far she has collected $245, which is 70% of what she hopes to co

Nata [24]

Answer:

The money Rachael plan to collect for the shelter is <u>$350</u>.

Step-by-step explanation:

Given:

Rachel is collecting donations for the local animal shelter.

So far she has collected $245, which is 70% of what she hopes to collect.

Now, to find the money Rachael plan to collect for the shelter.

Let the total amount Rachael plan to collect be $x$ .

Amount she collected = $245.

Percentage of amount she collected = 70%.

Now, to get the amount Rachael plan to collect we put an equation:

$70\%\ of\ x=\$245.$

⇒ $\frac{70}{100} \times x=245$

⇒ $0.70\times x=245$

⇒ $0.70x=245$

<em>Dividing both sides by 0.70 we get:</em>

⇒ $x=\$350.$

Therefore, the money Rachael plan to collect for the shelter is $350.

4 0

4 years ago