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4 years ago

I keep getting several answers, and I’m not sure how to solve this ? Help me pleaseee!!

Mathematics

2 answers:

algol [13]4 years ago

5 0

Answer:

Perimeter= 44.2 inches

Area= 70 inches squared

Step-by-step explanation:

Perimeter- Add all your sides together (10+ 17.2+2+3+7+5=44.2)

Area- 1/2bh (b=base, h=height)

Your base is the bottom of the triangle, so 2+7+5=14.

14 is your base

Your height is the 10

1/2 *14*10

1/2 of 14 is 7

7*10= 70

Don't forget to write inches squared or it will be wrong

Hope this helps :)

olganol [36]4 years ago

4 0

Answer:

Perimeter: 47.2 in Area: 49² in

Step-by-step explanation:

First to find the perimeter you have to add 17.2 with 10, 2, 3, 3, 7, and 5. You get 47.2 in as your perimeter. To get the area, first you multiply 10 by 14 and you get 140. Now divide that by 2 to get 70. Now multiply 7 by 3 to get 21. Subtract 21 from 70 to get 49² as your answer

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4x – 3y=8<br> 2. 5x – 2y = -11

AlladinOne [14]

Answer:

$x = -7$

$y = - 12$

Step-by-step explanation:

The given system is:

4x-3y=8

5x-2y=-11

We make x the subject in the top equation to get:

$x = \frac{3}{4}y + 2$

Plug this expression for x in the bottom equation to get

$5( \frac{3}{4}y + 2) - 2y= - 11$

We expand to obtain

$\frac{15}{4} y + 10 - 2y = - 11$

Multiply through by 4

$15y + 40 - 8y = - 44$

Group similar terms

$15y - 8y = - 44 - 40$

$7y = - 84$

$y = - \frac{84}{7} =-12$

This means

$x = -12\times \frac{3}{4} + 2$

$x = - 7$

6 0

4 years ago

Mr. Garza's family is attending the local soccer game. He has 30 to spend on food and drinks . The cost of chips is $2 and the c

enyata [817]

Answer:

Step-by-step explanation:

let x and y be the number of chip and pretzel bags respectively : 4x%2B2y%3 C=20 : if x=1 then 4%281%29%2B2y%3C=20--->{{2y<=16}}}--->y%3C=8 : if x=3 then 4%283%29%2B2y%3C=20--->{{2y<=8}}}--->y%3C=4 : so chips 1 and pretzels 8 : chips 3 and pretzels 4.

4 0

3 years ago

I need my smart homies to answer this question for me !

ella [17]

Answer:

Part A: chosen method is by factoring

Part B: First rewrite the equation by writing -24 as a difference so you get x² -9x - 15x + 135 = 0. Then factor out the x and the -15 from the equation so you get x(x-9) - 15(x-9) = 0. Then factor out x-9 from the equation so you have (x-9)(x-15) = 0. Finally, set each expression to 0: x-9=0 and x-15=0 and then solve: x=9 and x=15

Part C: x=9, x=15

4 0

3 years ago

Need help on this one please

Archy [21]

The answer is A because there are only acute angles

3 0

3 years ago

Help help help help help

e-lub [12.9K]

Answer: E: 100%

Step-by-step explanation:

If the class average is currently 70% and she wants to increase it by 10% every week for 3 weeks, 10×3=30% and 70+30= 100%.

PS- It would mean the world to me if you could mark me brainliest!

I am not a professional, I am simply using prior knowledge!

7 0

3 years ago