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3 years ago

SOS EASY MATHHHH!!!!!

Mathematics

2 answers:

Deffense [45]3 years ago

7 0

Answer:

Step-by-step explanation:

il63 [147K]3 years ago

5 0

The answer is choice A.

One line goes through (0,6) and (4,0); the equation of this line is 3x+2y = 12. The inequality 3x+2y < 12 means we shade below the boundary line which is a dashed line.

The equation 2x+y < 10 means we graph out 2x+y = 10 which goes through (0,10) and (5,0). The shading is also below the dashed boundary line. The shading is a bit off since the region above 3x+2y = 12 should not be shaded in. Also the boundary lines should be dashed lines.

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Rewrite the expressions as a multiple of a sum of two numbers with no common factor 15+33

Misha Larkins [42]

Answer:

7(15+33) is one of many possible "multiple of a sum of two numbers with no common factor."

Step-by-step explanation:

4 0

3 years ago

10in 8 in 8 in What is the surface area of the solid? A. 384 square inches B. 184 square inches C. 192 square inches D. 224 squa

yKpoI14uk [10]

Answer:

Step-by-step explanation:

224 sq in.

5 0

3 years ago

The population of town A increases from 1,346 to 1,500. In the same period, the population of town B increases from 1,546 to 1,8

Yuki888 [10]

a. you would do 1346/1500 to get 0.8973333333333. i you want to check that you can do 1346/0.8973333333333 and you would get 1500. I'm just going to round 0.8973333333333 down to 0.897. So for town B you would also do 1546/1800 which brings you to 0.858889 you can again do 1546/0.858889 but i found that 0.8588888888 gives you the most accurate answer. so rounding that down to 0.859

b. you can see that 0.897 is a larger percent that 0.859 so town a had a larger increase than b

7 0

3 years ago

I suck at math if you could help me with these questions that would be great

docker41 [41]

Answer:

Part 8) The triangles are not similar (see the explanation)

Part 12) The triangles are not similar (see the explanation)

Part 14) The area is increased by 125%

Part 15) $h=30\ ft$

Step-by-step explanation:

Part 8) we know that

If two triangles are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

<em>Find the value of x in the larger triangle</em>

The sum of the interior angles in any triangle must be equal to 180 degrees

$64^o+85^o+x=180^o$

$149^o+x=180^o$

$x=180^o-149^o$

$x=31^o$

<em>Find the value of y in the smaller triangle</em>

The sum of the interior angles in any triangle must be equal to 180 degrees

$26^o+85^o+y=180^o$

$111^o+y=180^o$

$y=180^o-111^o$

$y=69^o$

The corresponding angles of both triangles are not congruent

therefore

The triangles are not similar

Part 12) we know that

If two triangles are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

The measure of the interior angles of the triangle of the left are

88°

29° ----> by vertical angles

and

180°-(88°+29°)=63° ---> the sum of the interior angles in any triangle must be equal to 180 degrees

The measure of the interior angles of the triangle of the right are

180°-91°=89° ----> the sum of a exterior angle and a interior angle is equal to 180 degrees

29°

and

180°-(89°+29°)=62° ---> the sum of the interior angles in any triangle must be equal to 180 degrees

The corresponding angles of both triangles are not congruent

therefore

The triangles are not similar

Part 14) we know that

If two figures are similar then the ratio of its areas is equal to the scale factor squared

In this problem the scale factor is 1.5

Because

100%+50%=150%=150/100=1.5

The scale factor squared is $1.5^2=2.25$

That means that the new area is 2.25 times the original area

The area is increased by 125%

Part 15)

Let

h ----> the height of the pine

we know that

The height of the person divided by the length of his shadow is equal to the height of the pine tree divided by the length of its shadow

using proportion

$\frac{6}{3}=\frac{h}{15}$

solve for h

$2=\frac{h}{15}$

$h=2(15)=30\ ft$

6 0

3 years ago

Intersecting circles have how many common tangents?

Oliga [24]

intersecting circles have two common tangents

6 0

4 years ago