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kicyunya [14]
3 years ago
5

Find the area of a right triangle with a base of 38 cm and height of 26 cm.

Mathematics
2 answers:
meriva3 years ago
6 0

Answer:

494cm²

Step-by-step explanation:

A=hbb/2

=26*38/2= 494cm²

Sliva [168]3 years ago
6 0

Answer:

494 cm

Step-by-step explanation:

i did the test and got it right

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Kate swam 18 laps at practice This is three fourths The number Of laps that paco swam at practice write an equation that can be
Lunna [17]
18÷4=5×3=15 laps that paco swam
5 0
3 years ago
Multiply: ( sqrt 2x^3 + sqrt12x) (2*sqrt 10x^5 + sqrt 6x^2)
solmaris [256]

Answer:

c is the answer

Step-by-step explanation:

i just did it

5 0
3 years ago
How to divide (x^2+5x-36)÷(x-4)
mr_godi [17]

Answer:

x + 9

Step-by-step explanation:

Since the divisor is in the form of <em>x - c</em>, use what is called <em>Synthetic Division</em>. Remember, in this formula, -c gives you the OPPOSITE terms of what they really are, so do not forget it. Anyway, here is how it is done:

4| 1 5 -36

↓ 4 36

----------------

1 9 0 → x + 9

You start by placing the c in the top left corner, then list all the coefficients of your dividend [x² + 5x - 36]. You bring down the original term closest to <em>c</em><em>,</em> then begin your multiplication. Now depending on what symbol your result is tells you whether the next step is to subtract or add, then you continue this process starting with multiplication all the way up until you reach the end. Now, when the last term is 0, that means you have NO REMAINDER. Finally, your quotient is one degree less than your dividend, so that 1 in your quotient can be an x, and the 9 follows right behind it, giving you the other factor of x + 9.

If you are ever in need of assistance, do not hesitate to let me know by subscribing to my channel [USERNAME: MATHEMATICS WIZARD], and as always, I am joyous to assist anyone at any time.

4 0
3 years ago
Tamara looked at the expression 35 + z &lt; 59. She believes that z can equal more than one value.
MakcuM [25]

Answer:

z<24

Step-by-step explanation:

It can't be more than one value. All you do is subtract 35 from both sides to isolate z.

Hope this helped!

4 0
3 years ago
Read 2 more answers
Suppose the true proportion of high school juniors who skateboard is 0.18. If many random samples of 250 high school juniors are
madreJ [45]

Answer:

0.024

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1-p)}{n}}

Suppose the true proportion of high school juniors who skateboard is 0.18.

This means that p = 0.18

Samples of 250 high school juniors are taken

This means that n = 250

By how much would their sample proportions typically vary from the true proportion?

This is the standard error, so:

s = \sqrt{\frac{p(1-p)}{n}}

s = \sqrt{\frac{0.18*0.82}{250}}

s = 0.024

So 0.024 is the answer.

6 0
3 years ago
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