3 years ago

Which of the terms given can you write in the blank box so that the

Mathematics

1 answer:

Serhud [2]3 years ago

5 0

The blank box should be equal to 4

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Pls help is easyyyyy geometry

Makovka662 [10]

Answer:

A = 30 unit^2

Step-by-step explanation:

To find the area of the triangle

A = 1/2 b*h where b is the length of the base and h is the height

b = 12 and h =5

A = 1/2 (12*5)

A = 1/2 *60

A = 30 unit^2

8 0

3 years ago

Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 99% confidenc

quester [9]

Answer: 18

Step-by-step explanation:

The formula to find the minimum sample size is given by :_

$n=(\dfrac{z^*\cdot \sigma}{E})^2$

, where $\sigma$ = population standard deviation.

z*= critical z-value.

E= Margin of error.

Given : $\sigma= 13$

E= ± 8

We know that critical value corresponding to 99% confidence level = z*=2.576 [Using z-table]

Then, the required sample size would be :

$n=(\dfrac{(2.576)\cdot (13)}{8})^2$

$\Rightarrow\ n=(4.186)^2$

$\Rightarrow\ n=17.522596\approx18$ [Round to next integer.]

Hence, the required minimum sample size = 18

4 0

3 years ago

A bucket contains one green block, one red block, and two yellow blocks. You choose one block from the bucket. Find the theoreto

Gemiola [76]

P(green) = 1/4
P(yellow) = 1/2
P(red) = 1/4

4 0

3 years ago

What is x squared minus 18x equal to negative 32

lisabon 2012 [21]

Answer:

x=16

x=2

Step-by-step explanation:

$x^2-18x=-32\\x^2-18x+32=0\\(x-16)(x-2)=0\\\\x-16=0\\x=16\\\\x-2=0\\x=2$

8 0

3 years ago

Solve for y.<br> 15y - -9y + -10y = 14<br> y =<br> Submit

Tems11 [23]

Answer:

I think y=1

Step-by-step explanation:

15y+9y= 24y

24y-10y=14y

divide 14y by 14 and get just y and divide 14 by 14 to get one

y=1

8 0

3 years ago