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Natalija [7]
3 years ago
11

In right triangle ABC, A. 30 B.45 C.60 D.75

Mathematics
1 answer:
AnnyKZ [126]3 years ago
5 0
Is there a picture to show it?
You might be interested in
Write each of the following expressions without using absolute value: |z−6|−|z−5|, if z<5
abruzzese [7]

Answer:

The answer is <em>1</em>.

Step-by-step explanation:

Given the expression:

|z-6|-|z-5|,\ if\ z

To find:

The expression without absolute value.

Solution:

First of all, let us learn about the absolute value function:

y = f(x) = |x| =\left \{ {{x\ if\ x>0} \atop {-x\ if\ x

i.e. value is x if x is positive

value is -x if x is negative

Here the given expression contains two absolute value functions:

|z-6| and |z-5|

Using the definition of absolute value function as per above definition.

|z-5| =\left \{ {{(z-5)\ if\ z>5} \atop {-(z-5)\ if\ z

|z-6| =\left \{ {{(z-6)\ if\ z>6} \atop {-(z-6)\ if\ z

Now, it is given that z < 5 that means z will also be lesser than 6 i.e. z < 6

So, given expression |z-6|-|z-5|,\ if\ z will be equivalent to :

-(z-6) - (-(z-5))\\\Rightarrow -z+6 +z-5 = \bold{1}

So, the expression is equivalent to <em>1</em>.

6 0
3 years ago
Andre has $ 90 dollars to spend on sneakers. This is 75% of the cost of the sneakers. How much more will the need? Solve and exp
goldenfox [79]

Answer:

I suppose the answer would be 120

Step-by-step explanation:

Well if 90 is 75% then 50% should be 60 and 25% should be 30.

so its going up and down by 30, so that would make 100% 120

please give brainliest

7 0
3 years ago
Evaluate the series.<br><br> A)125<br> B) 38<br> C) 210<br> D) 165
Reika [66]
165 is answer we also use a formula
5 ( n/2(2a + ( n-1)d)
in that n=6 ,a=3 , d= 1

4 0
3 years ago
Read 2 more answers
Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to
Aloiza [94]

Answer:

Step-by-step explanation:

band alone 11 

choir alone 17 

band and choir alone 4 

band and math alone 7 

math and choir alone 6 

band choir and math 3 

math alone 9 from 11+4+10+6+17 + M = 57 

so 

2 classes = 4+7+6 = 17

17 students take exactly two classes with Mr. Green

5 0
3 years ago
1 hat cost $12
Ivan

Answer:

he bought 6 hats.

Step-by-step explanation:

im just gonna go through this 1 at a time. starting at 1.

12 + (14x9) = 138

(12x5)+(14x5) = 130

(12x4)+(14x6) = 132

(12x8)+(14x2) = 124

(12x6)+(14x4) = 128

6 0
3 years ago
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