All categories

3 years ago

HELP PLSASE: Find the solution of the system of equations.

Mathematics

1 answer:

Mamont248 [21]3 years ago

3 0

Answer:

Step-by-step explanation:

−

Explanation:

−

Subtract the bottom equation from the top one so the

and

−

cancel each other out.

−

You might be interested in

Work out the area of a parallelogram of base 5m and height 3m

Arada [10]

B*H= area so 3*5= 15

15 is your answer

6 0

3 years ago

The sum of 3 consecutive even integers is 492. Find all of the integers

Diano4ka-milaya [45]

I think it would be 164

6 0

3 years ago

Read 2 more answers

The function A(b) relates the area of a trapezoid with a given height of 14 and one base length of 5 with the length of its othe

Brut [27]

Answer:

$b(a) =\frac{a}{7} -5$

Step-by-step explanation:

Given

$A(b) = 14 * \frac{b + 5}{2}$

Required

Determine the inverse function b(a)

Write A(b) as a

$a = 14 * \frac{b + 5}{2}$

Swap a and b

$b = 14 * \frac{a + 5}{2}$

$b = 7(a + 5)$

Divide both sides by 7

$a + 5 = \frac{b}{7}$

Maka a the subject

$a =\frac{b}{7} -5$

Swap a and b again

$b =\frac{a}{7} -5$

Hence:

$b(a) =\frac{a}{7} -5$

4 0

3 years ago

Find the value of x.<br> NEED ANSWER ASAP WILL MARK BRAINLIEST!<br><br> L, M ∈ KN

noname [10]

Answer:

the value of x in this image is 38

Step-by-step explanation:

we know that the total angles of triangles are 180, so m is 180-84=96, and 180-134=46, when added we get 142, which means the last angle is 38

3 0

2 years ago

Read 2 more answers

EF is the median of trapezoid ABCD.

BARSIC [14]

Answer:

Part A) $x = 11$

B) length of BC = x + 12 = x + 12 = 11 + 12 =23

length of EF = 4x - 18 = 4(11) - 18 = 44 - 18 =26

length of AD = 3x - 18 = 3(11) - 4 = 33 - 4 =29

Step-by-step explanation:

Median of trapezium is $m=\frac{base1+base2}{2}$

In provided figure, base1 is x+12 and base2 is 3x-4

A) solve for value of x

calculate the median $m=\frac{base1+base2}{2}$

$4x-18=\frac{x+12+3x-4}{2}$

$4x-18=\frac{4x+8}{2}$

$4x-18=2x+4$

$2x-18=4$

$2x = 18 + 4$

$2x = 22$

$x = 11$

B) To find the length of BC, AD and EF , put the value of x in equation of lines

length of BC = x + 12 = x + 12 = 11 + 12 =23

length of EF = 4x - 18 = 4(11) - 18 = 44 - 18 =26

length of AD = 3x - 4 = 3(11) - 4 = 33 - 4 =29

5 0

3 years ago