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3 years ago

60% of a number is 567. What is 50% of the number blank?

Mathematics

1 answer:

grandymaker [24]3 years ago

4 0

945 is your answer but what number blank?

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The radius of a circle is 13 find its area un terms of pi

Leto [7]

The area of the circle is given as:

$A=\pi r^2$

Plugging the value of the radius we have that:

$A=\pi(13)^2=169\pi$

Therefore the area in terms of pi is:

$A=169\pi$

7 0

11 months ago

Q(a+1) - 2q(a) if q(x) = x²+3x+4

siniylev [52]

$q(x) = {x}^{2} + 3x + 4$

_________________________________

Step(1)

To find q(a) we just need to put a instead of x in q(x) function.

Let's do it...

$q(a) = {a}^{2} + 3a + 4$

Multiply sides by -2 :

$- 2q(a) = - 2( {a}^{2} + 3a + 4)$

$- 2q(a) = - 2 {a}^{2} - 6a - 8$

_________________________________

Step (2)

To find q(a+1) we just need to put a+1 instead of x in q(x) function.

Let's do it...

$q(a + 1) = ({a + 1})^{2} + 3(a + 1) + 4 \\$

$q(a + 1) = {a}^{2} + 2a + 1 + 3a + 3 + 4 \\$

$q(a + 1) = {a}^{2} + 5a + 8$

_________________________________

Step (3)

$q(a + 1) - 2q(a) =$

${a}^{2} + 5a + 8 - 2 {a}^{2} - 6a - 8 = \\$

$- {a}^{2} - a = - a(a + 1)$

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

8 0

3 years ago

Find the slope of the line that passes through (8, 4) and (5, 2).

Troyanec [42]

If u you do the slope formula...(m=y2-y1/x2-x1)

2-4/5-8
-2/-3=2/3
Therefore the slope would be 2/3
Btw can u plz mark this answer the brainliest

8 0

3 years ago

Sara wanted to gather data about the cost of local gyms in her area. She plotted the data and determined that the average gym co

Juli2301 [7.4K]

Answer:

y-intercept is 30

Step-by-step explanation:

Given the model $y = 10x + 30.$ comparing this model to the equation of a straight lines we can get the y- intercept

$y = 10x + 30\\\y= mx+c$

The y- intercept is 30 which is the constant factor and it describes to us about the one-time registration fee of $30.

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2 years ago

Tracy found the length of GF. Her work is shown below.

Sveta_85 [38]

she used GF=2BG,but the statement is correct BG=2GF

3 0

3 years ago

Read 2 more answers