All categories

3 years ago

How would you work out this equation? 4x+3y=-23 -2x-3y=25

Mathematics

1 answer:

tigry1 [53]3 years ago

7 0

You need to move your contents e.I. 3,4,5 and your variables e.I.2x, 5y, 2z first

You might be interested in

Help me with these math questions....

Nady [450]

Answer: cotθ

Step-by-step explanation:

tanθ * cos²θ * csc²θ

= $\dfrac{sin\theta}{cos\theta} * \dfrac{cos\theta*cos\theta}{} *\dfrac{1}{sin\theta*sin\theta}$

= $\dfrac{cos\theta}{sin\theta}$

= cotθ

Answer: B

Step-by-step explanation:

The parent graph is y = x²

The new graph y = -x² + 3 should have the following:

reflection over the x-axis
vertical shift up 3 units

Answers:

a. Quadrant II
b. negative
c. $\dfrac{\pi}{6}$
d. C
e. $-\dfrac{\sqrt{3}}{3}$

Explanation:

$\dfrac{17\pi}{6} - \dfrac{12\pi}{6} = \dfrac{5\pi}{6}$

a) Quadrant 2 is: $\dfrac{\pi}{2} < \theta < \pi$

b) In Quadrant 2, cos is negative and sin is positive, so tan is negative

c) $\pi-\dfrac{5\pi}{6}$ = $\dfrac{\pi}{6}$

d) the reference line is above the x-axis so it is negative --> $-tan\dfrac{\pi}{6}$

e) $tan(\dfrac{5\pi}{6})=\dfrac{1}{-\sqrt{3}}=-\dfrac{\sqrt{3}}{3}$

4 0

2 years ago

I need some help with math. Who can help me?

Evgesh-ka [11]

Step-by-step explanation:

10^2 = 100

10^-2 = 1/100 ➡ 0.01

5 0

3 years ago

There are three consecutive integers, such that six times the first, minus two times the second, equals the third integer plus f

frozen [14]

Answer:

Step-by-step explanation:

Given that:

Integers : x, x + 1, x + 2

6x - 2(x + 1) = (x+2) + 5

6x - 2x - 2 = x + 2 + 5

4x - 2 = x + 7

4x - x = 7 + 2

3x = 9

x = 9/3

x = 3

First integer = x = 3

2nd integer = x + 1 = 3+1 = 4

3rd Integer = x + 1 + 1 = 3 + 2 = 5

7 0

2 years ago

Is 350% of 38 less than 100, greater than 100 but less than 150, or greater than 150?

solniwko [45]

Greater than 100 but less than 150

4 0

3 years ago

How to convert 20 into a fraction

zhuklara [117]

The answer would be 20 over 1 bevause if you do 20 ×1 you get 20. So the would be 20 over 1.

5 0

3 years ago

Read 2 more answers