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Crazy boy [7]
3 years ago
5

Adele has 19 stamps in her collection.

Mathematics
2 answers:
svet-max [94.6K]3 years ago
7 0

Answer:

D(19+5)x3

Step-by-step explanation:

she has 19, then don gave her 5 more

19+5

her father also offered to buy her three times so

(19+5)x3

Dimas [21]3 years ago
3 0

Answer:

D

19+5 is the total in her collection

multiply by three to triple

(19+5)x3

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Pls help me with this!!!
antiseptic1488 [7]

Step-by-step explanation:

I'm not sure what you need help with, since what you have written down is correct. However, if you are looking for an explanation, here it is:

x + 5 < -2

To solve for x, we have to get x on one side by itself. Whatever you do to one side, you have to do to the other. Let's get rid of 5 to get x by itself.

x + 5 < -2    (Subtract 5 from both sides)

x < -7

Perfect! Basically what this is saying, is that all the values x can equal have to be less than -7. The sign < means less than.

For the signs < (less than) and > (greater than), we use an open circle.

For the signs ≤ (less than or equal to) and ≥ (greater than or equal to), we use a closed circle.

This is why we use an open circle for this example since x is LESS THAN -7.

The arrow is pointing to the left because these numbers are less than -7.

5 0
2 years ago
What is the degree of this polynomial?<br><br> threex exponent 2 mines four x plus nine
Naddika [18.5K]
We just had to add exponents 
 so when we add them we get two

so, 
      it is a binomial
5 0
3 years ago
Helpp what time is 26.35 fl oz of shampoo
Sauron [17]

Answer:the answer is 152.83 so d what you do is multiply 26.35 times 5.8 and get 152.83 fl oz

Step-by-step explanation:

pllzzzz give brainly (crown on my answer)

5 0
3 years ago
Max purchased a box of green tea mints. The nutrition label on the box stated that a serving of three mints contains a total of
n200080 [17]

Answer: equation is

c(x)=(10/3)x

54 mints per box

Step-by-step explanation: ok so 3 mints=10 calories

if you input 3 for number of mints, ou get 10 for caloires

10=k3

divide both sides by 3

10/3=k

therfor

C(x)=(10/3)x

full box =180 caloies

therefor

full=180=(10/3)x

multiplyboth sides by 3/10 to clear fraction (since 10/3 times 3/10=30/30=1)

540/10=x

54=x

54 cookies

8 0
3 years ago
One percent of all individuals in a certain population are carriers of a particular disease. A diagnostic test for this disease
Lynna [10]

Answer:

(1) The probability that an individual who tests negative does not carry the disease is 0.9709.

(2) The specificity of the test is 98%.

Step-by-step explanation:

Denote the events as follows:

<em>X</em> = a person carries the disease

<em>Y</em> = the test detected the disease.

Given:

P(X) = 0.01\\P(Y|X)=0.93\\P(Y|X^{c})=0.02

The probability of a person not carrying the disease is:

P(X^{c})=1-P(X)=1-0.01=0.99

The probability that the test does not detects the disease when the person is carrying it is:

P(Y^{c}|X)=1-P(Y|X)=1-0.93=0.07

The probability that the test does detects the disease when the person is not carrying it is:

P(Y^{c}|X^{c})=1-P(Y|X^{c})=1-0.02=0.98

(1)

Compute the probability that an individual who tests negative does not carry the disease as follows:

P(X^{c}|Y^{c})=\frac{P(Y^{c}|X^{c})P(X^{c})}{P(Y^{c}|X^{c})P(X^{c})+P(Y^{c}|X)P(X)} \\=\frac{(0.98\times 0.99)}{(0.98\times 0.99)+(0.07\times 0.01)} \\=0.9709

Thus, the probability that an individual who tests negative does not carry the disease is 0.9709.

(2)

By specificity it implies that how accurate the test is.

Compute the probability of negative result when the person is not a carrier as follows:

P(Y^{c}|X^{c})=1-P(Y|X^{c})=1-0.02=0.98

Thus, the specificity of the test is 98%.

8 0
4 years ago
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