Area of a Trapezoid = 791 square cm. Base 1 = 26.5cm, Base 2 = 30cm. What is the height?

Answers

Answer 1
Answer: A=1/2(h)(b1+b2)
791=1/2(h)(26.5+30)
791=1/2(h)(56.5)
1582=(h)(56.5)
28=h

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6 Kay sees a jacket in New York costing $170. She knows the same jacket costs £132 in London.Using the exchange rate £1 = $1.30, work out in which place the jacket is cheaper and by how much. Show all stages of your working out.

Answers

The
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Is
Uk beacause it’s cheap

1. Which of the following numbers is an example of an integer?
• **-15 **
• **3/5**
• **0.252525 . . .**
2.
Which statement is false?
• **Every integer is a real number.**

• **The number zero is a rational number. **
• **Every irrational number is a real number. **

• **Every real number is a rational number.**
3.
Which number is not the same type of number as the others in the list?
• **5.85**
• **63.4**
• **8.52624 . . . **
• **27.5**
4.
How would you change this sentence to a true statement?

Some irrational numbers are also rational numbers.
• **All irrational numbers are also rational numbers.**
• **Half of the irrational numbers are also rational numbers.**
• **One-third of the irrational numbers are also rational numbers. **
• **Irrational numbers cannot be classified as rational numbers.**
5.
How would you change this sentence to a true statement?

Every irrational number is an integer.
• **Every irrational number is a rational number.**
• **Every irrational number is a real number. **
• **Every irrational number is a whole number. **
• **Every irrational number is a perfect square.**

Answers

1. The answer would be "-15" since integers are composed of whole numbers and negatives.

2. The statement "Every real number is a rational number." is false, since real numbers are composed of both rational and irrational numbers.

3. The number "
8.52624 . . ." because this is the only non-terminating number, which makes it the only irrational number on the list.

4. "
Irrational numbers cannot be classified as rational numbers." is the only correct statement. No irrational numbers can be rational numbers, and the opposite is also true.

5. Only the statement "
Every irrational number is a real number." is true.

A student got an 85% on his test . If he got 12 questions wrong , how many questions were on the test?

Answers

Answer:

80 questions

Step-by-step explanation:

Given that a student received an 85% grade on his test, and that he got 12 questions wrong:

We could infer that if he answered all of the test questions correctly, then he would have received a perfect score of 100% on his test.

Since he got 12 questions wrong, then it means that those wrong answers account for the 15% out of receiving a 100% grade on his test (or: 100% - 85% = 15%).

Let x = number of test questions

In order to find how many questions were on his test:

12 questions = 15% (or 0.15) of the total number of questions (x)

12 questions = 0.15x

Divide both sides by 0.15 to isolate x:

\displaystyle\mathsf{(12\:questions)/(0.15)\:=\:(0.15x)/(0.15)}

x = 80 questions

Therefore, there were 80 questions on his test.

The table shows the cost of renting movies online. Number of Movies Cost 1 $3.99 2 $7.98 3 $11.97 4 $15.96 5 $19.95 What does the rate of change mean in this situation? A. The cost increases $3.99 for every additional movie rented.
B. The cost increases $15.96 for every additional movie rented.
C,The cost increases $7.98 for every additional movie rented.
D.The cost increases $11.97 for every additional movie rented

Answers

Answer: A


Step-by-step explanation: If you subtract each price by the price lower then it. Ex: $19.95 - $15.96 = $3.99, $15.96 - $11.97 = $3.99 and so on. They all equal $3.99.


Answer:

A. The cost increases $3.99 for every additional movie rented.

Step-by-step explanation:

3g-2+7g+8=
What is this

Answers

Answer:

10g+6 is the answer

Step-by-step explanation:

A student uses the substitution method to solve the system of equations below algebraically.2x - y = 5
3x + 2y = -3

Which equivalent equation could be used?

Answers

Solve the first equation for "y" and you get: y = 2x - 5.

That is the equivalent equation that answers the question.

To solve the system, you substitue it for "y" in the second equation and you obtain:

3x + 2 (2x - 5) = -3

Now you have one equation with one single variable, "x" which you can solve easily.

Please, let me know if you could follow the explanation.