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Wewaii [24]
3 years ago
10

!!!! HELPPP NOWWW PLSSS ITS DUE IN 1 HOUR !!!!!!

Mathematics
2 answers:
RUDIKE [14]3 years ago
6 0
Answer: -4x+15x+30=-36
pshichka [43]3 years ago
3 0

Answer:

The last one is the answer

Step-by-step explanation:

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Please help ;-; <br> Solve for the simultaneous equation….<br> 5x+y=17<br> X+y=3
Svetach [21]

<u>Given Equation</u>:-

  • 5x+y=17 . . . . . . . . 1
  • x+y=3 . . . . . . . . . . 2

<u>To find</u> :

  • value of x
  • value of y

<u>Solution</u> :

<u>Let's start with equation 2</u>:-

x + y = 3

y = 3 - x

Put the value of y in Equation 1

  • 5x+y=17
  • 5x + (3 - x) = 17
  • 5x - x + 3 = 17
  • 4x + 3 = 17
  • 4x = 17 - 3
  • 4x = 14
  • x = 14/4
  • x = 7/2
  • x = <em>3.5</em>

<u>Now Let's find value of y</u><u>:</u>

put the value of x in equation 2:

y = 3 - x

y = 3 - 3.5

y = <em>0.5</em>

4 0
2 years ago
Please help me how to do no 5
snow_tiger [21]

Answer:

  -864

Step-by-step explanation:

The determinant of a matrix product is the product of the determinants. The determinant of a transpose is the same as the determinant of the original. Hence ...

  |AB^5C^T|=(4)(-2)^5(\frac{1}{4})=-32

The multiplication of an n×n matrix by a scalar 'a' multiplies its determinant by a^n, so the desired determinant is ...

  |3AB^5C^T|=3^3(-32) = \boxed{-864}

3 0
3 years ago
I need help or I’m going to fail math
gavmur [86]

Answer:

1. A

2. B

3. D

Step-by-step explanation:

Use PEMDAS to solve all

1.

8^2 - 6*2

8*8 - 6*2

64 - 12 = 52

2.

4^2 * 3 + 4 * 2

4 * 4 * 3 + 4 * 2

16 * 3 + 8

48 + 8 = 56

3.

9^2 - 2(5+3)

9 * 9 - 2(8)

81 - 16 =65

4 0
2 years ago
Which description does NOT guarantee that a trapezoid is isosceles?
babunello [35]

A trapezoid is isosceles if and only if

(1) The base angles are congruent

(2) The diagonals are congruent

(3) The opposite angles are supplementary

So the description does not guarantee that a trapezoid is isoceles for "Congruent bases".

3 0
3 years ago
HELP ME WITH THESE TWO PLS !! I'LL GIVE BRAINLIEST
GenaCL600 [577]

Answer:

that is a two sided triangle

6 0
3 years ago
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