All categories

3 years ago

Can someone help me with this please and explain how they got the answer, please and thank you!

Mathematics

2 answers:

Tresset [83]3 years ago

5 0

The answer is 37 degrees. That is a 90 degree angle so if you subtract 90-53, you get 37.

Helga [31]3 years ago

5 0

See that little box in the angle? That means it is a right angle. A right angle is 90 degrees always. If the angle is split into two parts and one side is 53 degrees, the other side is the rest of the 90 degree angle. The two angles have to add together to make the 90 degree angle, so you just subtract 53 from 90 and get 37 degrees.

You might be interested in

What number needs to be added to both sides of the equation to complete the square? X^2−7x=5 Enter your answers in the boxes.

Andrew [12]

ANSWER

We need to add half the coefficient of $x$ all square.

$\frac{49}{4}$

EXPLANATION

Given the equation,

$x^{2} -7x=5$ .

We compare to the general equation,

$ax^2+bx+c=0$

This means that;

$a=1,b=-7,c=-5$

To complete the square we add, $(\frac{b}{2})^2$

That is $(\frac{-7}{2})^2=\frac{49}{4}$ .

Hence the number to be added to both sides is $\frac{49}{4}$ .

Note that before we complete the square, the coefficient of the term in $x^2$ must always be 1.

7 0

3 years ago

Please help ill mark brainliesta

alexdok [17]

Answer: Neither

Step-by-step explanation:

y = -5/4 x + 3/4

y = 5/4 x + 3/4

Because -5/4 is not a negative reciprocal of 5/4 and because they are not the same, they are neither in parallel or perpendicular

4 0

3 years ago

Which ordered pair is a solution of the equation Y=- 7X +2

elixir [45]

2 he nebsna Yukon 4(56)

5 0

3 years ago

Read 2 more answers

Geometry can be defined as

igor_vitrenko [27]

Answer:

Geometry (from the Ancient Greek: γεωμετρία; geo- "earth", -metron "measurement") is a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space. A mathematician who works in the field of geometry is called a geometer.

Step-by-step explanation:

5 0

4 years ago

find the exponential regression equation for the data points (-4, 0.75), (-2, 6), (3, 28), and (5, 162)

zubka84 [21]

for that, what you need is a calculator... like say a TI(texas instruments) 83 or 83plus or higher, will do regressions, if you have an android device like a phone or tablet, you can also get an app from the play store "Andie's graph", is a TI calculator emulator, it works just like the calculator itself, you'd only need the ROM

that said, you can also use some online calculators for that.

I could give you a direct link to one, but this site has issues with links, if you do a quick search in google for "keisan exponential regression calculator", it should be the first link, is from the Casio site.

you could do regressions in a spreadsheet as well.... you could check online for an "addin" or "extension", if you use MS Excel, pretty sure there are some addins for regressions.

if I recall correctly, Excel does regressions natively, but the addins are just frontends, is all, just some added interfacing.

anyhow, if you have an Android device Andie Graph works peachy, I have an 83plus, 84, 86 in it, they all work just like my old TI83plus.

there's also an app in the play store called Graph89, is an emulator for a TI89, the same you need a tiny little file, and texas instruments provides them, have also, works peachy too.

8 0

3 years ago