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NISA [10]
3 years ago
15

Can someone check those and tell what is wrong and the answer

Mathematics
1 answer:
xeze [42]3 years ago
5 0

Answer:

42. acute

43. obtuse

Step-by-step explanation:

Obtuse: which one of the interior angles measures more than 90° degrees, then the rest are less than ninety.

Acute: all less than ninety and all different.

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The sum of two consecutive odd integers is 156. Which is an equation that can be used to solve for x?
satela [25.4K]

Answer:

Below.

Step-by-step explanation:

We can write an odd integer as 2x + 1 so consecutive odd digits would be 2x + 1 and 2x + 3, so the equation is:

2x + 1 + 2x + 3 = 156

4x + 4 = 156 can be used to solve for x and find the integers.

4x = 152

Dividing through by 4:

x = 152/4 = 38

So the 2 integers are 2(38) + 1 and 2(38) + 3

= 77 and 79.

7 0
4 years ago
For which equation does it make the most sense to solve by completing the square?
daser333 [38]

The equation for which square method is possible is x²-8=1

Step-by-step explanation:

For checking which of the equation satisfies the complete square condition, we proceed by checking each of the available options

1). x²+20x=52

Rewriting it as  x²+20x-52

This binomial expression is not a perfect square since the product of the coefficient of x²(i.e. 1) and independent constant (i.e. 52) is not a perfect square.

2). 5x² + 3x = 9

This equation can be rearranged as 5x²+3x-9=0

This binomial expression is not a perfect square since the product of the coefficient of x²(i.e. 5) and independent constant(i.e. 9) is not a perfect square.

3.) x² −8=1

This equation can be rearranged as  x²=9

Hence x= ±3

This binomial expression is a perfect square and can be done by the square method.

4). 3x² −x+17=0

This binomial expression is not a perfect square since the product of the coefficient of x²(i.e. 3) and independent constant(i.e. 17) is not a perfect square.

8 0
4 years ago
If the probability that is will rain is 0.7 what is the probability that it will not rain?
earnstyle [38]

Answer: I think it's 0.3

8 0
4 years ago
Read 2 more answers
Kyla applied rm ◦ T0,3 to triangle ABC. What mistakes did she make? Check all that apply.
gavmur [86]

Answer: she applied the reflection to the triangle first

&

she changed the size of the triangle instead of just applying a translation.

Step-by-step explanation:

7 0
3 years ago
"The sum of a number and 4."
kenny6666 [7]

Answer:

n + 4

Step-by-step explanation:

It´s like a normal sum, but since the number is unknown just put n.

7 0
4 years ago
Read 2 more answers
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