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3 years ago

I need help, I don't know how to do it.

Mathematics

1 answer:

Sindrei [870]3 years ago

5 0

Answer:

Step-by-step explanation:

to solve this problem we can use the Pythagorean theorem

UT and TL are the legs, while LU is the hypotenuse

We have to find LU so we can proceed like this

x^2 + (x+1)^2 = LU^2

x^2 + x^2 + 1 + 2x = LU^2

2x^2 + 2x + 1 = LU^2

LU = +/- $\sqrt{2x^2+2x+1$

we have to take only the positive value because a length can’t be negative.

2x^2 + 2x + 1 is positive for every value of x, so the final answer is

$\sqrt{2x^2+2x+1}$

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The five new teachers at a school were surveyed. Is this sample of teachers at the school likely to be biased?

nordsb [41]

Answer:

yes because since they are new they are all going to have a different opinion on the school than other teachers thats been there for years

hope this helps

have a good day :)

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

For the right triangles below, find the values of the side lengths a and h . Round your answers to the nearest tenth.

Strike441 [17]

<h2>H is to 3 and d is to 2 Thats my answer #brainliestbunch - _ - </h2>

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3 years ago

Answer for 5 stars answer and a heart with a comment. Please hurry!

klio [65]

Answer:

Length of the person = 1.9 m

Step-by-step explanation:

Actual length of the lorry = 9.5 m

Length of the lorry as per scale = 10 cm

Scale factor used to get the actual length of the lorry = $\frac{\text{Actual length}}{\text{Length on scale}}$

= $\frac{9.5}{10}$

= 0.95 : 1

Let the actual length of the person = x meters

Length of the person as per scale = 2 cm

Scale factor used to get the length of person is same.

Therefore, relation between the actual length of the person and scale length will be,

$\frac{x}{2}= \frac{0.95}{1}$

x = 2 × 0.95

x = 1.9 meters

5 0

3 years ago

2. Devin brings 5 dolls to her grandma's house. These dolls represent 10% of Devin's doll collection. What is the total number o

yan [13]

Answer:

I think by anita you mean devins bc other wise it makes no sence

5*10=50

so devin has 50 dolls

Hope This Helps!!!

8 0

3 years ago

A triangle has the following coordinates: (-15, 10), (0, -20), and (15, 0). Which of these points will not change if the figure

slega [8]

The point that would not be effected would be (15,0).

The other point are located off of the axis in the coordinate plain and would be flipped when reflected over the x-axis. However, this point, because it is located directly on the x-axis, would not be changed as a result of a reflection across the x-axis. It would reflect onto itself.

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3 years ago