3 years ago

In the diagram of rectangle ABCD below, m

Mathematics

2 answers:

insens350 [35]3 years ago

6 0

Answer:

I think its B 36° its an acute angle

TEA [102]3 years ago

5 0

Answer:

Step-by-step explanation:

∠ABE° = 90 - 30 = 60

∠BFC° = 180 - 144 = 36

60 + 36 = 96

∠BEF° = 180 - 96 = 84

You might be interested in

49/n = 7/10<br><br> What’s n?

Lady_Fox [76]

The answer should be 70 :)

6 0

3 years ago

Read 2 more answers

How many roots does this has?<br>x^2+(2√5x)+2x=-10<br>find Discriminant

Alexxandr [17]

Given:

The equation is

$x^2+(2\sqrt{5})+2x=-10$

To find:

The number of roots and discriminant of the given equation.

Solution:

We have,

$x^2+(2\sqrt{5})x+2x=-10$

The highest degree of given equation is 2. So, the number of roots is also 2.

It can be written as

$x^2+(2\sqrt{5}+2)x+10=0$

Here, $a=1, b=(2\sqrt{5}+2), c=10$ .

Discriminant of the given equation is

$D=b^2-4ac$

$D=(2\sqrt{5}+2)^2-4(1)(10)$

$D=20+8\sqrt{5}+4-40$

$D=8\sqrt{5}-16$

$D\approx 1.89>0$

Since discriminant is $8\sqrt{5}-16\approx 1.89$ , which is greater than 0, therefore, the given equation has two distinct real roots.

3 0

3 years ago

Which vocabulary word best describes the math sentence you see here?

nlexa [21]

Answer:

Expression

Step-by-step explanation:

Remember, an expression is a mathematical phrase that contains numbers, variables, or both. Expressions never have an equal sign. An equation is a mathematical sentence that says two expressions are equal. My work don't copy®️

7 0

2 years ago

If the measure of Angle AXC=8x-7 and Angle AXB = 3x+10 find the measure of ANGLE AXC

mafiozo [28]

I’m to lazy to figure out this question

8 0

3 years ago

Read 2 more answers

What is the reciprocal of?

olga nikolaevna [1]

Answer:

Step-by-step explanation:

Just flip it up... it will be 8

4 0

3 years ago

Read 2 more answers