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3 years ago

I need help with 18 only!

Mathematics

2 answers:

grigory [225]3 years ago

7 0

4%, put 32 into 32/100 and 28 into 28/100.

Nikitich [7]3 years ago

4 0

Absolute value of
(16-20)/16 * 100
4/16 * 100
1/4 * 100
25%

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13. Simplify: 6x+8/4x+4 A. x+7/8 B. 3x+4/2(x+1) C. 5x+9/3x+8 D. x-10/x-6

harkovskaia [24]

I think it is A.....

6 0

3 years ago

Solve for x. x = 5° x = 18° x = 30° x = 36°

sergij07 [2.7K]

Answer:

x=36

Step-by-step explanation:

The 2 angles, ∠EAF and ∠FAB are on a straight line. This means they are supplementary, and add to 180 degrees.

So,

∠EAF +∠FAB =180

We know that ∠EAF is 3x and ∠FAB is 2x, so we can substitute them in

3x+2x=180

Combine like terms

5x=180

Divide by 5 on both sides

x=36

So, x=36 degrees, or the last choice

3 0

3 years ago

Find the f^-1(x) and it’s domain

borishaifa [10]

Answer:

$f^{-1}(x) = (x + 8)^2$

$x \ge -8$

Step-by-step explanation:

Given

$f(x) = \sqrt x - 8$

Solving (a): $f^{-1}(x)$

We have:

$f(x) = \sqrt x - 8$

Express f(x) as y

$y = \sqrt x - 8$

Swap x and y

$x = \sqrt y - 8$

Add 8 to $both\ sides$

$x + 8 = \sqrt y - 8 + 8$

$x + 8 = \sqrt y$

Square both sides

$(x + 8)^2 = y$

Rewrite as:

$y = (x + 8)^2$

Express y as: $f^{-1}(x)$

$f^{-1}(x) = (x + 8)^2$

To determine the domain, we have:

The original function is $f(x) = \sqrt x - 8$

The range of this is: $f(x) \ge -8$

The $domain$ of the $inverse$ function is the $range$ of the $original$ function.

Hence, the domain is:

$x \ge -8$

3 0

3 years ago

DEFG is a square. Find the measure of each of the angles,

kodGreya [7K]

Answer:

EFG = 90°

GDH = 45°

FEG = 45°

DHG = 90°

have a great day!

7 0

2 years ago

2/7 (4+c)=6 plz help me I need to get it right

choli [55]

Problem: 2/7 (4+c)=6

1. 7/2 x 2/7 x (4+c)=7/2 x 6

2. 4+c=7 x 3

3. 4+c=21

4. c=21-4

Answer: c=17

7 0

3 years ago