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3 years ago

PLEASEE HELPP ANYONE

Mathematics

2 answers:

almond37 [142]3 years ago

5 0

Answer: B. Exponential. There is a constant rate of decay or decrease.

The y-values decrease by 1/4 of the number that comes before every time.

STALIN [3.7K]3 years ago

5 0

Answer:

Option B

Step-by-step explanation:

Given :

X : -4 -1 2 4 5

Y : 16 2 0.25 0.0625 0.03125

The graph is attached which shows it is exponential.

There is a decrease rate as shown

therefore, there is a constant rate of decay or decrease

Option B is correct i.e. it is exponential, there is a constant rate of decay or decrease.

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A triangle has side lengths of (8.3f+9.6g)(8.3f+9.6g) centimeters, (3.6f+1.5h)(3.6f+1.5h) centimeters, and (6.7h-2.9g)(6.7h−2.9g

nekit [7.7K]

Answer:

The expression (11.9f + 6.7g + 8.2h) cm represent the perimeter of the triangle

Step-by-step explanation:

Perimeter of a triangle = side a + side b + side c

Side a = (8.3f + 9.6g)

Side b = (3.6f + 1.5h)

Side c = (6.7h - 2.9g)

Perimeter of a triangle = side a + side b + side c

= (8.3f + 9.6g) + (3.6f + 1.5h) + (6.7h - 2.9g)

= 8.3f + 9.6g + 3.6f + 1.5h + 6.7h - 2.9g

Collect like terms

= 8.3f + 3.6f + 9.6g - 2.9g + 1.5h + 6.7h

= 11.9f + 6.7g + 8.2h

Perimeter of a triangle = (11.9f + 6.7g + 8.2h) cm

The expression (11.9f + 6.7g + 8.2h) cm represent the perimeter of the triangle

7 0

3 years ago

What is the volume of the pyramid?

Daniel [21]

Answer:

V= 112

Step-by-step explanation:

L * w * h then divide by 3

7 0

3 years ago

Read 2 more answers

In the 1980’s, a clinical trial was conducted to determine if taking an aspirin daily reduced the incidence of heart attacks. Of

zubka84 [21]

There is enough evidence to conclude that taking aspirin cannot reduces the chance of cancer.

Given sample size of patients take aspirin 11037, sample size of patients who have assigned placebo group be 11034. 104 doctors who take aspirin had a heart attack, 189 doctors had placebo had heart attacks.

First we have to form hypothesis.

$H_{0} :p{1} -p_{2} =0$

$H_{1}:p_{1} -p_{2} < 0$

We have to find the respective probabilities.

$p_{1}$ =104/11037

=0.0094

$p_{2}$ =189/11034

=0.0171

Now their respective margin of errors.

$s_{1}$ = $\sqrt{ {(0.0094*0.9906)/11037}$

=0.0009

$s_{2}$ = $\sqrt{0.0171*0.9829}$

=0.0011

Hence the distribution of the differences,they are given by:

p= $p_{1} -p_{2}$

=0.0094-0.0171

=-0.0077

S= $\sqrt{s_{1} ^{2}+s_{2} ^{2} }$

= $\sqrt{(0.0009)^{2} +(0.0011)^{2} }$

=0.00305

z=(p -f)/S (In which f=0 is the value tested at the null hypothesis)

=(-0.0077-0)/0.00305

=-2.52

p value will be 0.005.

p value of 0.05 significance level.

z=1.96.

1.96>0.005

So we will reject the null hypothesis which means it cannot reduce the whole chance of becomming a heart attack.

Hence there is enough evidence to conclude that taking aspirin cannot reduces the chance of cancer.

Learn more about t test at brainly.com/question/6589776

#SPJ4

6 0

2 years ago

2n + 1 =7 Show work please

HACTEHA [7]

So,the right answer is 3.

Look at the attached picture

Hope it will help you

7 0

3 years ago

Read 2 more answers

The combined land area of the countries A and B is 131,973 square kilometers. Country A is larger by 473 square kilometers. Dete

Zarrin [17]

x+y=131973

x=y+473

2y+473 = 131973

2y = 131500

y= 65750

x= 65750 + 473 = 66223

65750 + 66223 = 131973

so one country is 65750 and the second country is 66223

8 0

4 years ago