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kvasek [131]
3 years ago
13

Need help on these questions ASAP DUE TOMORROW PLEASE

Mathematics
1 answer:
Shkiper50 [21]3 years ago
3 0

9514 1404 393

Answer:

  3)  D

  4)  D

  5)  B

  6)  B

Step-by-step explanation:

3) A "Pythagorean triple" is a set of 3 integers that could be the sides of a right triangle. The only triangle shown with integer side lengths is choice D.

__

5) The only triangle for which the square of the hypotenuse is the sum of the squares of the other two sides is choice D.

  11² +2² = (5√5)²

  121 + 4 = 125

__

6) The lengths of sides of each right triangle are 2/3 of those of choice D in problem 4. That is, they are a 7-24-25 triangle, multiplied by 2. That means the height is 24·2 = 48, and the area is ...

  A = 1/2bh

  A = 1/2(28 m)(48 m) = 672 m² . . . . matches choice B

__

7) The side lengths of a 30-60-90 triangle have the ratios 1 : √3 : 2. That is, the short leg is half the hypotenuse, a fact stated in A and D. Those true statements make it clear that statement B is false.

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Identify the error by providing a brief description. Then, complete the problem correct
Ipatiy [6.2K]

Answer:

True answer: -24

Step-by-step explanation:

<em><u>Showing the error</u></em>

-16-2(-2) – 12   First you need to multiply

8(-2) - 12   The error here is that the wrong numbers are multiplied together

-16-12    Add the negatives together

-28​  Your answer (the incorrect one)

<em><u /></em>

<em><u>The correct way of solving it</u></em>

-16 -2(-2) - 12  Multiply into the parenthesis

-16 + 4 -12   Add the first two numbers

-12 - 12  Add the numbers together

-24  The answer

8 0
3 years ago
Paula weeded 40% of her garden in 8 minutes. How many minutes will it take her to weed all of her garden?
Anton [14]

So do

Part=percent*whole

6 0
3 years ago
Read 2 more answers
PLS HELP ME ! ! ! ! !
emmainna [20.7K]

Answer:

D (0, 2)

General Formulas and Concepts:

<u>Algebra I</u>

The y-intercept is the y value when x = 0. Another way to reword that is when the graph crosses the y-axis.

Slope-Intercept Form: y = mx + b

  • m - slope
  • b - y-intercept

Step-by-step explanation:

<u>Step 1: Define</u>

y = 3/4x + 2

<u>Step 2: Break Function</u>

<em>Identify Parts</em>

Slope <em>m</em> = 3/4

y-intercept <em>b</em> = 2

8 0
3 years ago
HELLLPLPPPPPP PLEASEEEEEEEE!!!!!!!!
svlad2 [7]

Answer:

tell your teacher to help u

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Find the surface area of the prism below. See attachment, 58 cm is incorrect.
Masja [62]

Answer:

Surface area of the given figure = 48 cm^2

Step-by-step explanation:

Surface area is nothing area of all the sides.

We can find the area of each figure add them together.

There are two triangles with the same measures.

One rectangle with measure of 4 by 3.

Another rectangle with the measure of 5 by 3.

One square with the measure of 3.

Surface area = Area of two triangles + rectangle 1 + rectangle 2 + square

Formulas:

Area of the triangle = 1/2 base* height

Area of the rectangle = length * width

Area of the square = side x side

Applying the formula, we get

=2[1/2 (3*4)] + 4*3 + 5*3 + 3^2

= 12 + 12 + 15 + 9

Surface area of the given figure = 48 cm^2

Hope this will helpful.

Thank you.

3 0
3 years ago
Read 2 more answers
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