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3 years ago

I need help fining X. I keep getting a negative number

Mathematics

2 answers:

KIM [24]3 years ago

3 0

Answer:

Step-by-step explanation:

ella [17]3 years ago

3 0

Answer: x = 3

Step-by-step explanation:

Hey there! This geometry problem can easily be solved using something known as power theorems of a circle.

There are 3 power theorems. Chord chord theorem, tangent secant theorem and secant secant theorem.

Since your diagram contains 2 intersecting cords of a circle, we're gonna have to use the chord chord theorem

Say chord AB of a circle intersects with chord CD of the same circle at O. Then the chord chord theorem states that AO×OB = CO×CD.

So in your diagram, according to the chord chord theorem,

6×1 = 2×x

2x = 6

2x/2 = 6/2 ( divide both sides by 2 to single out x in the LHS)

Then we have x = 3!!!

YAYYY we derived our answer!!!

Hope it helped ya

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The federal government requires a car manufacturer to have a minimum miles per gallon (mpg) average over the models it makes. Su

valentinak56 [21]

Answer:

25 mpg

Step-by-step explanation:

We have a set of values 19, 21, 22, 28 and 18

The average (which is the mean of the set of values ) is :

19 + 21 + 22 + 28 + 18 = 21.6 mpg out of the government requirement

So we need a value such as the mean become at least 25 mpg

We have to solve the equation:

(19+21+22+28+ x)/ 5 = 25

(90 + x ) /5 = 25 ⇒ 90 + x = 125 ⇒ x = 35 mpg

If we get the mean of the set of values including 35 we have:

(19 +21+ 22+ 28 + 35 ) / 5 = 25 mpg government requirement

7 0

2 years ago

Generate the first three terms of the following sequence 4n² - 2n + 3

Jet001 [13]

Answer:

=15

=33

Step-by-step explanation:

$n = 1 \\ 4 {n}^{2} - 2n + 3 \\ 4 \times 1 \times 1 - 2 \times 1 + 3 \\ 4 - 2 + 3 \\ 2 + 3 \\ = 5$

$n = 2 \\ 4 {n}^{2} - 2n + 3 \\ 4 \times 2 \times 2 - 2 \times 2 + 3 \\ 16 - 4 + 3 \\ 12 + 3 \\ = 15$

$n = 3 \\ 4 {n}^{2} - 2n + 3 \\ 4 \times 3 \times 3 - 2 \times 3 + 3 \\ 36 - 6 + 3 \\36 - 3 \\ = 33$

8 0

2 years ago

Gina went to a restaurant for lunch. On her bill the sales tax equals $2.34. If the tax is 8.5%, what was the subtotal (without

bagirrra123 [75]

Answer:

$2.5389

Step-by-step explanation:

Given data

Cost of lunch = $2.34

Tax= 8.5%

Let us compute the cost of the tax

=8.5/100*2.34

=0.085*2.34

= $0.1989

Hence the total is = 0.1989+2.34

=$2.5389

4 0

2 years ago

Solve 247 divided by 10 to the 3rd power + 247 divided by 10 to the third power

dolphi86 [110]

The answer to your question is <span><span><span>0.494</span>
</span>
</span>

8 0

3 years ago

Read 2 more answers

Determine the number of bytes in 513 BM

Naddik [55]

We know,
1 MB = 1000 KB
513 MB = (1,000 * 513) KB
= 513,000 KB

Now,
1 KB = 1,000 bytes
513,000 KB = (1,000 * 513,000) bytes
= 513,000,000 bytes

∴ 513 MB is 513,000,000 bytes

3 0

2 years ago