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3 years ago

−|−37| = 37 True False

Mathematics

2 answers:

vitfil [10]3 years ago

6 0

Answer:

False

Step-by-step explanation:

The left side -37

does not equal to the right side

, which means that the given statement is false.

False

Hope this helps

Mice21 [21]3 years ago

4 0

Answer:

True

Step-by-step explanation:

minus into minus = plus

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R is divided into 8 equal sections, and each section contains a number from 1 to 8. What is the probability of the spinner landi

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Answer:

3/8 hope helpes

Step-by-step explanation:

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3 years ago

Below is data about the labor market in the state of Northwoods. Wage Quantity Demanded Quantity Supplied $10 80,000 120,000 $9

Mars2501 [29]

Answer:

So the number of people who would be unemployed is 111111.

Step-by-step explanation:

We calculate the total number of people and how much money they will need:

$200000\cdot 10\$=2000000\$\\\\200000\cdot 9\$=1800000\$\\\\200000\cdot 8\$=1600000\$\\\\200000\cdot 7\$=1400000\$\\\\200000\cdot 6\$=1200000\$\\$

So the total number of people receiving a salary is 1000000.

A total of $ 8000000 is required for their salaries.

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$8000000:9=888888.8\\\\\\1000000-888888.8=111111.2\\$

So the number of people who would be unemployed is 111111.

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4 years ago

Order the ratios from least to greatest.

pantera1 [17]

5:8 = 20:32
11:16 = 22:32
18:32

Least: 18:32
Middle: 5:8
Greatest: 11:16

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4 years ago

Read 2 more answers

In the diagram, angle abc is a right angle. Find the value of x<br><br> Show full working out pls ty

Vladimir79 [104]

Answer:

x = 3.75

Step-by-step explanation:

ABC is a right angled triangle.

Therefore, by Pythagoras theorem:

${(10 - x)}^{2} = {x}^{2} + {5}^{2} \\ 100 - 20x + {x}^{2} = {x}^{2} + 25 \\ 100 - 20x = 25 \\ - 20x = 25 - 100 \\ - 20x = - 75 \\ x = \frac{ - 75}{ - 20} \\ \: \: \huge \red { \boxed{x = 3.75}}$

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3 years ago

Two teaching methods, A and B, are implemented for learning Spanish. There is a 70% chance of successfully learning Spanish if m

Mkey [24]

Answer:

(a) Shown below.

(b) Shown below.

(d) The probability that method B was used given that a student learned the Spanish successfully is 0.83.

Step-by-step explanation:

(a)

Consider the provided data.

$P(A)=0.20\\P(B)=0.80\\P(L|A)=0.70\\P(L|B)=0.85$

Then the probability of not learning Spanish using the respective methods are:

$P(L'|A)=1-P(L|A)=1-0.70=0.30\\\\P(L'|B)=1-P(L|B)=1-0.70=0.15$

(b)

The Probability Tree representing each of the probabilities mentioned above is attached below.

(c)

Compute the probability that a person does not learn Spanish as follows:

$P(L')=P(L'|A)P(A)+P(L'|B)P(B)$

$=(0.30\times 0.20)+(0.15\times 0.80)\\\\=0.06+0.12\\\\=0.18$

Thus, the probability that a person does not learn Spanish is 0.18.

(d)

Compute the probability that method B was used given that a student learned the Spanish successfully as follows:

$P(B|L)=\frac{P(L|B)P(B)}{P(L|A)P(A)+P(L|B)P(B)}$

$=\frac{(0.85\times 0.80)}{(0.70\times 0.20)+(0.85\times 0.80)}\\\\=\frac{0.68}{0.14+0.68}\\\\=0.82927\\\\\approx 0.83$

Thus, the probability that method B was used given that a student learned the Spanish successfully is 0.83.

3 0

3 years ago