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3 years ago

Please please my dyslexia is a pain.

Mathematics

2 answers:

boyakko [2]3 years ago

4 0

Answer:

Area: 312

Perimeter: 75

Step-by-step explanation:

Area is l·w

20·16=320

two corners aren't filled

320-9-9=318

Add all the sides for perimeter

17+3+3+13+20+13+3+3=75

mrs_skeptik [129]3 years ago

3 0

Answer:

281 m squared

Step-by-step explanation:

What we can first do is find the top length so we can do

17+3+3=23

then we can multiply it by the side length to get the whole rectangle

23*13=299

and we know each of the little areas is 9, and there are two so

9+9=18

and we can subtract that from the whole rectangle

299-18=281

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WILL MARK BRAINLIEST

atroni [7]

Answer:

7.405882353 years

Step-by-step explanation:

Simple interest is

A = P(1+rt)

Where A is the amount in the account

P is the principle invested

r is the rate and

t is the time

6593.75 = 5000( 1+ .0425*t)

Divide each side by 5000

6593.75/5000 = ( 1+ .0425*t)

1.31475 = ( 1+ .0425*t)

Subtract 1 from each side

.31475 = .0425t

Divide each side by.0425

.31475/.0425 = .0425t/.0425

7.405882353 = t

7.405882353 years

8 0

4 years ago

Read 2 more answers

Amélie runs a bakery. She wants to find out whether her cake sales are affected by the weather conditions. She recorded the dail

SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

Daily temp(in F) Cakes sold

42 39

45 52

48 31

54 61

59 72

62 35

64 61

65 34

67 58

75 45

84 24

To find whether there is an association between these two let us find the correlation coefficient between these two variables.

r=-0.1975

Since |r|<0.5, correlation is weak.

Let us test the hypothesis r =0

H0:r=0

Ha:r not equals 0

Test statistic = $\frac{r\sqrt{n-2} }{\sqrt{1-r^2} } \\=\frac{-0.1975\sqrt{11-2} }{\sqrt{1-0.1975^2} }\\=\frac{-0.5625}{{0.9803} } \\=-0.5738$

p =0.298

Since p value >0.10, at 90% significance level we accept that there is no association.

6 0

3 years ago

How many lines of symmetry does the figure have?<br><br> A. 0<br> B. 1<br> C. 2

balu736 [363]

Answer:

The answer is A, so zero.

8 0

3 years ago

Find the slope of the line below. Enter your answer as a fraction of

Levart [38]

Answer:

$\boxed{\sf{\dfrac{3}{10}}}$

Step-by-step explanation:

Use the slope formula.

<h3 /><h3>What is a slope?</h3>

Slope is a surface with one end higher than the other and with no steps. It proceeds at an angle. The path sloped down to the beach.

So, the property possessed by a line or surface that departs from the horizontal.

<u>Slope formula:</u>

$\longrightarrow \sf{\dfrac{y_2-y_1}{x_2-x_1} }$

(-6,-2) (4,1)

y₂=1
y₁=(-2)
x₂=4

x₁=(-6)

<u>Rewrite the problem down.</u>

$\sf{\dfrac{1-\left(-2\right)}{4-\left(-6\right)}}$

<u>Solve.</u>

1-(-2)=1+2

1+2=3

4-(-6)=4+6

4+6=10

$\boxed{\sf{\frac{3}{10} }}$

Therefore, the slope is 3/10, which is our answer.

To learn more about slope:

brainly.com/question/24241142

brainly.com/question/66944

#SPJ1

4 0

2 years ago

Exercise 10.10.2: Distributing a coin collection. About A man is distributing his coin collection with 35 coins to his five gran

11Alexandr11 [23.1K]

Answer:

Step-by-step explanation:

Given that:

all coins are same;

The same implies that the number of the non-negative integral solution of the equation:

$x_1+x_2+x_3+x_4+x_5 = 35$

$x_1 > 0 ; \ \ \ x_1 \ \varepsilon \ Z$

Thus, the number of the non-negative integral solution is:

$^{(35+3-1)}C_{5-1} = ^{39}C_4$

(b)

Here all coins are distinct.

So; the number of distribution appears to be an equal number of ways in arranging 35 different objects as well as 5 - 1 - 4 identical objects

i.e.

$= \dfrac{(35+4)!}{4!}$

$= \dfrac{39!}{4!}$

(c)

Here; provided that the coins are the same and each grandchild gets the same.

Then;

$x_1+x_2+x_3+x_4+x_5 = 35$

$x_1 > 0 ; \ \ \ x_1 \ \varepsilon \ Z$

$x_1=x_2=x_3=x_4=x_5$

$5x_1 = 35\\\\ x_1= \dfrac{35}{5} \\ \\ x_1= 7$

Thus, each child will get 7 coins

(d)

Here; we need to divide the 35 coins into 5 groups, this process will be followed by distributing the coin.

The number of ways to group them into 5 groups = $\dfrac{35!}{(7!)^55!}$

Now, distributing them, we have:

$\mathbf{\dfrac{35!}{(7!)^55!} \times 5!= \dfrac{35!}{(7!)^5}}$

3 0

3 years ago