All categories

1 year ago

SOMEONE HELP !!! Please

Mathematics

1 answer:

Lelu [443]1 year ago

3 0

Answer:

x = ± $\sqrt{8}$ - 2

Step-by-step explanation:

x² + 4x = 4

to complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(2)x + 4 = 4 + 4

(x + 2)² = 8 ( take square root of both sides )

x + 2 = ± $\sqrt{8}$ ( subtract 2 from both sides )

x = ± $\sqrt{8}$ - 2

You might be interested in

Here is my question.

s2008m [1.1K]

Answer:

5/8

Step-by-step explanation:

if 1/8 is used for one batch . for five batch=1/8*5=5/8

4 0

3 years ago

There are 7 girls on a bus. each girl has 7 backpacks. each backpack has 7 big cats. each big cat has 7 little cats. how many le

Vera_Pavlovna [14]

7 girls on a bus, each has two legs. 7 * 2 = 14.

Each girl has 7 backpacks. So 7 * 7 = 49.

49 * 7 = 343 cats in total

343 * 4 = 1,372 cat legs.

343 * 7 = 2401 small cats

2401 * 4 = 9,604 cat legs

14 + 1,372 + 2,401, + 9,604 = 10,990 legs in total

6 0

3 years ago

Read 2 more answers

Mhanifa can you please help? I will mark brainliest!

Rzqust [24]

Answer:

Given function

h(x) = 2x - 1

#15 Find the inverse of h(x)

Substitute x with y and h(x) with x and solve for y:

x = 2y - 1
2y = x + 1
y = 1/2x + 1/2

The inverse is:

h⁻¹(x) = 1/2x + 1/2

#16 The graph with both lines is attached.

The x- and y-intercepts of both functions have reversed values.

#17 Table of the inverse function will contain same numbers with swapped domain and range.

Initial look is like this:

x | -3 | -2 | -1 | 0 | 1 | 2 | 3
h⁻¹(x) | -1 | | 0 | | 1 | | 2

The rest of the table is filled in by finding the values:

x | -3 | -2 | -1 | 0 | 1 | 2 | 3
h⁻¹(x) | -1 | -0.5 | 0 | 0.5 | 1 | 1.5 | 2

7 0

3 years ago

Need help!!!! Asap I’ll Mark Brainly

antiseptic1488 [7]

Answer:

I think 9 and 12 are paraellograms. the others are not paraellograms. dunno if im right. but I tried my best

Step-by-step explanation:

7 0

2 years ago

For an angle Θ with the point (12, −5) on its terminating side, what is the value of cosine?

Pachacha [2.7K]

Given that the point (12,-5) which takes the form (x,y), This implies that:
opposite=-5
adjacent=12
thus using using Pythagorean theorem, the hypotenuse will be:
c^2=a^2+b^2
plugging the values we obtain:
c^2=(12)^2+(-5)^2
c^2=144+15
c^2=169
thus
c=13
but
cos θ=adjacent/ hypotenuse
therefore:
cos θ=12/13

Answer is option . D

5 0

3 years ago