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motikmotik
2 years ago
14

HELPP FOR BRIANLEST PLEASS

Mathematics
2 answers:
Alex777 [14]2 years ago
6 0

Answer:

first one

Step-by-step explanation:

uh yeah the first one because it the second one to the original problem

Helen [10]2 years ago
3 0

Answer:

x + 2y = -4

Step-by-step explanation:

A system of linear equations has one solution when the graphs intersect at one point.

Rewrite y = (1/2)x + 2 into the same format as the possible solutions and compare:

y = (1/2)x + 2  

multiply both sides by 2:  2y = x + 4

Subtract 2y from both sides:  0 = x - 2y + 4

Subtract -4 from both sides:  -4 = x - 2y

⇒ x - 2y = -4

Compare:

  • 2x - 4y = 4  ⇒ parallel
  • x + 2y = -4   ⇒ intersects at one point
  • x - 2y = -4    ⇒ equivalent
  • x - 2y = 4     ⇒ parallel

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27? i cant figure out her mistake can anyone help ?
expeople1 [14]
The mess up occurs in one of the first things she says. She first claims that 7^2 +25^2 = 24^2
Wait a minute... slow your roll there.
25 is the hypotenuse, or the longest side of the triangle AND opposite the right angle (but we aren't supposed to know that yet).
The Pythagorean Theorem holds that a^2 + b^2 = c^2, where a & b are the legs of the triangle & c is the hypotenuse. So, she got the formatting correctly, but she switched 24 & 25.
Hope this helps!
4 0
3 years ago
Read 2 more answers
Twenty four over the quantity of 3 x minus two. Find f(−2).
TEA [102]
Answer:

f(-2) = -3

Explanation:

Not sure if those last couple numbers are answer choices, but I'm going to infer that they might be.

Twenty four over the quantity of 3 x minus two in standard form is:

f(x) = <span>24<span>3x−2</span></span>

Since the number in the ( ) = x, plug in for x using f(-2)

<span>24<span>3∗<span>(−2)</span>−2</span></span>

P E {M D} {A S} for where to solve first

Multiply the 3 and (-2):

<span>24<span>−6−2</span></span>

Add -6 and -2:

<span>24<span>−8</span></span>

Divide the rest:

f(-2) = -3

3 0
3 years ago
How many learners can enrol if there are 12 teachers and a ratio of teachers to learners is 30:1
VladimirAG [237]

Answer:

360 learners

Step-by-step explanation:

One way to solve these types of problems is that you could set up a proportion

learners/teachers = learners/teachers

Let x = no. of learners to enrol

30/1 = x/12

12(30) = x

x = 360 learners

5 0
3 years ago
AB is a straight line workout the size of angle X
Hoochie [10]

The x value will be 109°. The straight line formed a 180° angle. Solving the equation yields the angle.

<h3>What are supplementary angles?</h3>

Supplementary angles are two angels whose sum is 180°. When a straight line intersects a line, two angles form on each of the sides of the considered straight line.

Those two-two angles are supplementary angles in two pairs. That is, if two supplementary angles are adjacent to each other, their exterior sides form a straight line.

The straight line formed a 180° angle. The resulting equation is as follows:

⇒x+42°+29°=180°

⇒x=109°

Hence, the value of the x will be 109°

The complete question is:

AB is a straight line.

Work out the size of angle x.

Not drawn accurately

42°

Х

29°

А

B

To learn more about supplementary angles, refer to:

brainly.com/question/12919120

#SPJ1

4 0
1 year ago
A right angle intersects a line at point M.Which statement is true about angles 1 and 2They are congruent.
SOVA2 [1]

Answer:

they are complementary

Step-by-step explanation:

4 0
3 years ago
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