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igomit [66]
3 years ago
11

•Please help, multiple choice•

Mathematics
1 answer:
anzhelika [568]3 years ago
4 0

Answer: The answers are in the photo.

Step-by-step explanation:

To solve 11, we need to mark the triangle. Since we know that LMN is an isosceles triangle, we can use the iso. triangle theo. proof to mark some angles and sides.The iso. triangle theo. is that an isosceles triangle's opposite base angles are congruent, and the sides opposite of the bases angles are congruent to each other (meaning 2 sides are congruent and 2 angles are congruent.) Since T is the midpoint of LN, LT and TN are congruent. Triangles LMT and LNT also share a same side we can also mark.

To solve number 12, you can use CPCTC- congruent parts of congruent triangles are congruent. Anything in LMT and LNT are congruent to each other, making angles 1 and 2 congruent.

To solve number 13, you just need to place and plug. We know the right base vertice has a y of 0 because it is sitting on the x-axis. Because this triangle is isosceles, we can use the value of the top vertices x, multiply it by 2, which gets 2a as the x of the right base vertice. In the end, it's coordinates are (2a,0).

I apologize if this explanation is sloppy.

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Vadim26 [7]

Answer:

Basketball all the way!

Step-by-step explanation:

3 0
3 years ago
Lauren wants to save 30% of her weekly paycheck. How much will she save each week if her paycheck is $150 a week?
Vlad1618 [11]
She will save $45 dollars a week the working is
150÷10
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$45
3 0
3 years ago
What is the value of 6(2b-4) when b=5.​
trapecia [35]
<h3><u>3</u><u>6</u> is the answer.</h3>

Step-by-step explanation:

Put value of b as given and using BODMAS rule,

6(2b - 4)

=  > 6((2 \times 5)-4)

=  > 6(10 - 4)

=  > 6 \times 6

=  > 36

Henve, value of of the given expression is 36

7 0
2 years ago
Read 2 more answers
Find the percent of increase or decrease? 2.5y to 1.5y
horsena [70]

Answer:

From 2.5 y to 1.5 y there is a 40 % DECREASE in the value.

Step-by-step explanation:

Here, the initial value = 2.5 y

The final value of 1.5 y

Now,as Final Value  < Initial Value

So, there is a DECREASE IN THE VALUE.

Now, decrease in the value  = Initial value  - Final Value  

                                                =  2.5 y = 1.5 y  = 1 y

or, there is a decrease of ( 1 y) in the given value.

Now, Percentage decrease in the value is given as:

\textrm{Percentage Decrease} = \frac{\textrm{The decrease in the value}}{\textrm{The initial Value}} \times 100\\ = \frac{1 y}{2.5 y}  \times 100 = 40

or, Percentage Decrease = 40%

Hence, from 2.5y to 1.5y there is a 40 % DECREASE in the value.

4 0
3 years ago
A right rectangular prism has edges of 2 1/4 in, 1 1/2 in and 1 1/2 in. How many cubes with lengths of 1/4 in would be needed to
Zielflug [23.3K]

The volume of a rectangular prism is (length) x (width) x (height).

The volume of the big one is  (2.25) x (1.5) x (1.5) = <em>5.0625 cubic inches</em>.

The volume of the little one is  (0.25)x(0.25)x(0.25)= 0.015625 cubic inch

The number of little ones needed to fill the big one is

             (Volume of the big one)  divided by (volume of the little one) .

       5.0625 / 0.015625  =  <em>324 tiny cubies</em>

=================================================

Doing it with fractions instead of decimals:

The volume of a rectangular prism is (length) x (width) x (height).
Dimensions of the big one are:

   2-1/4  =  9/4
   1-1/2  =  3/2
   1-1/2  =  3/2

   Volume = (9/4) x (3/2) x (3/2) =
 
                 (9 x 3 x 3) / (4 x 2 x 2)  =

                           81 / 16  cubic inches.

          As a mixed number:    81/16  =  <em>5-1/16 cubic inches</em>

Volume of the tiny cubie = (1/4) x (1/4) x (1/4) =  1/64 cubic inch.   

The number of little ones needed to fill the big one is

             (Volume of the big one)  divided by (volume of the little one) .

                 (81/16) divided by (1/64)  = 

                     (81/16) times (64/1)  = 

                             5,184/16  =  <em>324 tiny cubies</em>.


5 0
3 years ago
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