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3 years ago

T

Mathematics

2 answers:

trapecia [35]3 years ago

6 0

Answer:not sure sry but I dont know how to come out of this so I will answer in the comments after I post this

Step-by-step explanation:

aev [14]3 years ago

3 0

Answer:

Use the chart to answer the questions.

What is the total economic cost of building a small pyramid?

$23,000

What is the total economic cost of building a large pyramid?

$57,500

Which pyramid has a lower total economic cost?

the small pyramid

Step-by-step explanation: i got it correct trust me

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Tara has 2000 in her savings account David has 1/10 as much as Tara in his account how much does David have in his savings accou

Paraphin [41]

200$ because if you do 2000dovided by 10 then it will equal=200 so loook 200x10=2000 so 1/10=200

7 0

3 years ago

Will mark brainliest! Please help!

ValentinkaMS [17]

Answer:

The dimensions are:

$3(2x+1)$ by $(7x+5)$

Step-by-step explanation:

The area of the rectangle is given as

$A=42x^2+51x+15$

The factored form of this quadratic trinomial gives the dimensions of the rectangle.

We factor 3 first to obtain;

$A=3(14x^2+17x+5)$

We split the middle term to get;

$A=3(14x^2+10x+7x+5)$

We factor within the parenthesis to get;

$A=3(2x(7x+5)+1(7x+5))$

We factor further to get;

$A=3(2x+1)(7x+5)$

The dimensions are:

$3(2x+1)$ by $(7x+5)$

Then the perimeter will be

$2(6x+3+7x+5)=26x+16\:\:\:\boxed{\sqrt{} }$

4 0

2 years ago

Find the value of x in the given figure using properties of parallel lines. answers: A) 35° B) 15° C) 75° D) 105°

Harlamova29_29 [7]

Answer:

75 degrees

Step-by-step explanation:

those two angles = 180

180-105 =75

8 0

3 years ago

Read 2 more answers

Refer to the figure at the right. Line a is parallel to line b

frosja888 [35]

Answer:

angle 9 = 55°

angle 7 = 145°

angle 3 = 35°

angle 4 = 55°

Step-by-step explanation:

Correct me if I'm wrong. I hope it helps.

3 0

3 years ago

Pllzzzz help it’s an exam !!!! A side of the triangle below has been extended to form an exterior angle of 125 . Find the value

Delvig [45]

Answer:

i think it is 105

Step-by-step explanation:

180-125=55

180-(55+25)=105

*second 180 is triangle's total interior angle

5 0

2 years ago