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Setler [38]
3 years ago
13

I really need help on these few questions. I real deal don't understand them so anyone who does can you please help me?

Mathematics
1 answer:
belka [17]3 years ago
3 0
This looks really hard :(
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if two straight lines intersect each other in such a way that one of the angles formed measures 90 degree show that each of the
Hitman42 [59]
I hope this helps in answering your question! If you have any inquiries to the solution, feel free to leave a comment!

6 0
3 years ago
Read 2 more answers
How do you determine whether a sum will be positive, negative, or 0 when adding a positive and a negative integer?
professor190 [17]
If the integers have the same absolute value ... they're the same number
but with different signs ... then their sum is zero.

Example:    (plus) 927 added to (negative) 927  =  zero


If the integers have different absolute values ... they're different numbers with different
signs ... then their sum has the same sign as the one with the bigger absolute value.

Examples:

==>   (plus) 92 added to (negative) 91
         92 and 91 are 1 number apart on the number line.
         The positive number is bigger than the negative number.
         So the sum is  +1 . 

==>    (plus) 35 added to (negative) 37
          35 and 37 are 2 numbers apart on the number line.
          The negative number is bigger than the positive one.
          So the sum is  -2 .
3 0
2 years ago
[HELP] Are the diagonals of an isosceles trapezoid congruent?
erastovalidia [21]
Yes.

the properties of an isosceles trapezoid are:
- the bases are parallel 
- opposite sides are congruent
- the angles on either side of the bases are congruent
- the diagonals are congruent
3 0
3 years ago
11 feet 8inches + 2 feet 9 inches
hjlf

the asnwer is 14 feet 5 inches because you add feet and then inches

8 0
3 years ago
Read 2 more answers
A researcher is conducting a study of charitable donations by surveying a simple random sample of households in a certain city.
nirvana33 [79]

Answer:

H0: p ≤ 0.50

Ha: p > 0.50

Step-by-step explanation:

The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean. While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.

For the case above;

Let p represent the proportion of households in the city that gave a charitable donation in the past year

The null hypothesis is that the proportion of households in the city that gave a charitable donation in the past year is not more that 0.50

H0: p ≤ 0.50

The alternative hypothesis is that the proportion of households in the city that gave a charitable donation in the past year is more that 0.50

Ha: p > 0.50

7 0
3 years ago
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