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3 years ago

How many times do 7 go into4

Mathematics

1 answer:

Bond [772]3 years ago

3 0

7 dosent go into 4 at all but 4 goes into 7 once

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Find all solutions in radian [0,2pi) solve 4sinx= -cos^2x +4

Sphinxa [80]

I hope this helps you

-cos²x= sin²x-1

4.sinx = sin²x-1+4

sin²x-4.sinx +3=0

(sinx-3)(sinx-1)=0

sinx≠3

sinx =1

SİN90=1

8 0

3 years ago

Which of the following are square roots of the number below? Check ALL that apply. 225

andriy [413]

The square root of 225 is 15

7 0

2 years ago

A line passes through the point (2, 10) and has a y-intercept of 4. What is the equation of the line?

KatRina [158]

Answer:

$y=3x+4$

Step-by-step explanation:

Hi there!

What we need to know:

Linear equations are typically organized in slope-intercept form: $y=mx+b$ where m is the slope and b is the y-intercept (the value of y when x is equal to 0)

1) Determine the slope (m)

$m=\frac{y_2-y_1}{x_2-x_1}$ where two points that the line passes through are $(x_1,y_1)$ and $(x_2,y_2)$

We're given the point (2,10) and the y-intercept of 4. Recall that the y-intercept occurs when x is equal to 0. This means that the y-intercept occurs at (0,4), giving us our second point.

Plug these points into the equation

$=\frac{10-4}{2-0}\\=\frac{6}{2}\\=3$

Therefore, the slope of the line is 3. Plug this into $y=mx+b$

$y=3x+b$

2) Determine the y-intercept (b)

The y-intercept is given; it is 4. Plug this back into $y=3x+b$

$y=3x+4$

I hope this helps!

3 0

3 years ago

A sociologist is doing a study on journalists. He attends a journalism conference, where he randomly surveys 390 journalists abo

Natasha2012 [34]

If it’s referring to 137 out of 1700, divide 137 by 1700 and multiply by 100. same for the other, except you divide 137 by 390.

6 0

2 years ago

Can you please Solve for x and y

hichkok12 [17]

Answer:

x = 35, y = 26.5

Step-by-step explanation:

x = 35 ( Alternate angles are congruent )

The sum of the 3 angles in a triangle = 180°

sum the 3 angles and equate to 180

2y - 10 + 35 + 102 = 180, that is

2y + 127 = 180 ( subtract 127 from both sides )

2y = 53 ( divide both sides by 2 )

y = 26.5

8 0

2 years ago