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2 years ago

Subtract. (Enter an exact number as an integer, fraction, or decimal.) 8 - 5 1/2

Mathematics

2 answers:

Fantom [35]2 years ago

4 0

Answer:

2 1/2

Step-by-step explanation:

Split numbers to make it easier

8 - 5 1/2

8 = 7 + 1

7 - 5 = 2

1 - 1/2 = 1/2

2 + 1/2 = 2 1/2

Hope this helps :)

Have a great day!

devlian [24]2 years ago

3 0

Answer:

3 1/2

Step-by-step explanation:

$8 - 5 \frac{1}{2}$ (subtract the whole numbers)
$3\frac{1}{2}$

Have a lovely rest of your day/night, and good luck with your assignments! ♡

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What is the GCF (greatest common factor) of 12 and 27.

katovenus [111]

Step-by-step explanation:

The GCF of these numbers is 3 i did found it by prime Factorization 12 prime Factorization is 3x2x2 and for 12 is 3x3x3 so 3 it is the same of both so us it and bye have a good day

4 0

3 years ago

Read 2 more answers

5. Use a table of standard normal curve areas to find the following:

ANTONII [103]

Answer:

a. 0.7123

b. 0.1151

c. 0.0708

d. 0.6368

e. 0.7058

Step-by-step explanation:

the area to the right of z* can be stated as P(z<z*), and corresponding probability of z* on z-table gives the result.

a. The area to the left of z = 0.56 = P(z<0.56) = 0.7123

b. The area to the right of z = 1.20 =P(z>1.20)= 1- P(z<1.20)= 1-0,8849=0.1151

c. The area to the left of z = −1.47 = P(z<-1.47)= 0.0708

d. The area to the right of z = −0.35 =P(z>-0.35) = 1-P(z<-0.35)=1-0,3632=0.6368

e. P(-1.39<z<0.80) = P(z<0.80) - P(z<-1.39) = 0.7881-0.0823 = 0.7058

7 0

3 years ago

The floor in Lila's bedroom is 30 square yards. Calculate the area in square feet

love history [14]

1 sq yrd = 9 sq. ft
so 30 sq. yards times 9 = 270 square feet

-"270 square feet"-

6 0

3 years ago

Read 2 more answers

The dash triangle is the image of the solid triangle. The center of dilation is (-4, -4).

liraira [26]

Answer:

The scale factor of dilation is -3

Step-by-step explanation:

* Lets revise the meaning of dilation

- A dilation is a transformation that produces an image that is the same

shape as the original, but is a different size

- A dilation stretches or shrinks the original figure by a scale factor and

center of dilation

- If the scale factor between 0 and 1, then the original figure shrinks

- If the scale factor greater than 1, then the original figure stretches

- If the scale factor is negative then the original figure is stretches or

shrinks and rotate 180°

* Lets solve the problem

∵ The vertices of the original triangles are

(-4 , -4) , (-4 , -7) , (-6 , -4)

∵ The vertices of the image triangles are

(-4 , -4) , (-4 , 5) , (2 , -4)

∵ The length of one side of the original triangle is (-7) - (-4) = 3 units

∵ The length of the corresponding side in the image triangle is

(5) - (-4) = 9 units

∵ The image is in the opposite side of the center of dilation

- That means the original triangle rotate 180° around the center

of dilation

∴ The scale factor is negative

∵ The ratio between the corresponding sides are 9/3 = 3

∴ <em>The scale factor of dilation is -3</em>

3 0

3 years ago

On the planet of Mercury, 4-year-olds average 3 hours a day unsupervised. Most of the unsupervised children live in rural areas,

erastova [34]

Answer:

The distribution of X is normal

$P(X < 1.4) = 0.12654$

$P(X > 3.5) = 0.36051$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 3 \ hours$

The standard deviation is $\sigma = 1.4 \ hours$

Generally given from the question that the amount of time spent alone by the population size is normally distributed then then the distribution of X (i.e the amount of time spent by the sample size (the one Mercurian)) will be normally distributed

Generally the probability that the child spend less than one hour in a day is mathematically represented as

$P(X < 1.4) = P(\frac{X - \mu}{\sigma} < \frac{1.4 - \mu}{\sigma} )$