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stepladder [879]

3 years ago

6

If the diagonals of a parallelogram are perpendicular bisector of each other then it is a ____

1 answer:

Rina8888 [55]3 years ago

4 0

Answer:

Rhombus

Step-by-step explanation:

I think so, probably.

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Find the equation of a line passing through the point (-4,1) and perpendicular to the

n200080 [17]

Answer:

A. y=-1/4x

Step-by-step explanation:

We have the information 3y=12x-9, the lines are perpendicular, and the new line passes through (-4,1). First, you want to put the original equation into slope intercept form by isolating the y, to do this we need to divide everything by 3 to get y=4x-3. The slopes of perpendicular lines are negative reciprocals so you need to find the negative reciprocal of 4, so flip it to 1/4 and multiply by -1, we get the slope of the new line as -1/4. So far we have the equation y=-1/4x+b. We are given a point on the line, (-4,1), we can plug these into the equation as x and y to solve for the y-intercept, b. You set it up as 1=-1/4(-4)+b. First you multiply to get 1=1+b, then you subtract 1 from both sides to isolate the variable and you get b=0. Then you can use b to complete your equation with y=-1/4x, or letter A.

6 0

3 years ago

CAN ONE ON U GUYS HELP ME?? I WILL GIVE YOU 50 PTS THE FIRST ONE WILL GET BRAINLIEST!!

Radda [10]

<h2>Answer with explanation:</h2>

1. Let x = Number of nickels

y= Number of quarters

Equation: $x+y= 20$ (i)

Equation: $0.05x+0.25y=3$ (ii) [∵ 1 nickel = $0.05 , 1 quarter = $0.25]

Multiply equation (ii) by 20, we get

$x+5y=60$ (iii)

Eliminate (i) from (iii), we get

$4y=40\Rightarrow\ y=10$

put y= 10 in (i) ,

$x+10=20\Rightarrow\ x=10$

Sentence = " Jane has 10 nickels and 10 quarters".

2. Let x = Number of dimes

y= Number of nickels

Equation: $x+y= 12$ (i)

Equation: $10x+5y=75$ (ii) [∵ 1 nickel = 5 cents, 1 quarter = 25 cents]

Multiply equation (i) by 5, we get

$5x+5y=60$ (iii)

Eliminate (iii) from (ii), we get

$5x=15\Rightarrow\x=3$

put x=3 in (i) ,

$3+y=12\Rightarrow\ y=9$

Sentence = " Joey has 3 dimes and 9 nickels".

4 0

4 years ago

1-tan^2(x)/sec^2 = cos(2x)

LekaFEV [45]

By applying the formula of trigonometric function the right hand side will

be equal to right hand side which is 1- $tan^{2} x$ / $sec^{2}x$ =cos2x.

Given: 1- $tan^{2} x$ / $sec^{2}x$ =cos2x.

Taking right hand side first which is cos2x.

We know that cos2x= $1-tan^{2}x/1+tan^{2}x$

Now we will solve the left hand side of the equation give which is

1- $tan^{2} x$ / $sec^{2}x$

=1- $tan^{2}x$ /1+ $tan^{2}x$

[secant square x minus tangent square x is equal to 1]

By putting both values left hand side and right hand side we will find our solution which is :

1-tan^{2}x/1+tan^{2}x=1- $tan^{2}x$ /1+ $tan^{2}x$ .

Hence proved

Learn more about trigonometric functions at brainly.com/question/24349828

#SPJ10

3 0

2 years ago

What is the 12th term in the sequence?<br><br> an=−16+2n<br><br><br> Enter your answer in the box.

Elis [28]

Input 12 for n.

$a_{12}$ = -16 + 2(12)
$a_{12}$ = -16 + 24
$a_{12}$ = 8

The 12th term in the sequence is 8.

3 0

3 years ago

Read 2 more answers

In a search engine, 40,000 searches are done every minute.

ELEN [110]

Answer:

2400000 in a hour

Step-by-step explanation:

40,000 × 60 = 2400000 you need to multiple 40,000 with 60 because there is 60 minutes in a hour

6 0

3 years ago