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Angelina_Jolie [31]

3 years ago

7

PLEASE HELP!!!!!! ILL GIVE BRAINLIEST *EXTRA 40 POINTS** !! DONT SKIP :((

2 answers:

vovikov84 [41]3 years ago

4 0

Answer: im in 100% sure but i think its yes

Step-by-step explanation:

Lera25 [3.4K]3 years ago

4 0

Answer:

No

Step-by-step explanation:

I used photomath

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1 kg = how many grams?

GrogVix [38]

One kilogram will equal to one thousand grams.

or

1kg = 1,000 grams.

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3 years ago

2 sin2 (π/2 sin2x)=1+cos(π×cos2x)

givi [52]

Answer:

<h2>3/5</h2><h2>Step-by-step explanation:</h2>

$the \: equation \: is \: equivalent \: to \\ 2 \: { \sin }^{2} (( \: \frac{\pi}{2}) \: {cos}^{2} x ) = \\ \: 2 \: {sin}^{2} (( \frac{\pi}{2} sin \: 2x \: ) \\ = {cos}^{2} x = sin \: 2x \\ = \: \cos \: x(cos \: x \: - \: 2 \: sin \: x) \: = \: 0 \\ = \: 1 - 2 \tan \: x = 0 \: as \: cos \: x \: ≠ 0 \\ x ≠ (2n + 1) \frac{\pi}{2} \\ = \tan(x) = \frac{1}{2} \\ = \cos(2x) = \frac{1 - {tan \: }^{2}x }{1 + {tan \: }^{2} \:x } = \frac{3}{5}$

<h2>HOPE IT HELPS!!!!</h2><h2 />

<h2>If it is correct mark as BRAINLIEST ✌️</h2>

5 0

3 years ago

Evaluate: 2 + x - 2*7 for x = 7

Bas_tet [7]

Substitute x=7 in the equation:
2+7-2•7= 2+7-14= 2-7= -5

3 0

3 years ago

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Angela has a rectangular piece of paper

3241004551 [841]

Is there a picture of the rectangular piece of paper

3 0

3 years ago

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The points , (−15,1) and , (−7,r) lie on a line with slope 5/4. Find the missing coordinate r. Click image to enlarge

Nadya [2.5K]

The missing coordinate r is 11.

Solution:

Given points are (–15, 1) and (–7, r).

$x_{1}=-15, x_{2}=-7, y_{1}=1 \text { and } y_{2}=7$

Slope (m) = $\frac{5}{4}$

<u>To find the missing coordinate r:</u>

Slope formula:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Substitute the given values in the formula.

$$\frac{5}{4}=\frac{r-1}{-7-(-15)}$

$$\frac{5}{4}=\frac{r-1}{-7+15}$

$$\frac{5}{4}=\frac{r-1}{8}$

Do cross multiplication.

$8 \times 5=4(r-1)$

40 = 4r – 4

Add 4 on both side of the equation.

44 = 4r

Divide by 4 on both side of the equation.

11 = r

⇒ r = 11

Hence the missing coordinate r is 11.

6 0

3 years ago