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svp [43]
3 years ago
12

42° Х please help with this

Mathematics
1 answer:
Anarel [89]3 years ago
5 0

Answer:

X=48degrees.

Step-by-step explanation:

Sum of all angle of traingle=180degrees.

So, 90+42+X=180

132+X=180

X=180-132=48degrees

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Find area and perimeter​
alisha [4.7K]

Answer:

Perimeter

P = P1+P2

P1 = 4a           P2=2(a+b)

P1=4*5           P2=2(3+5)

P1=20            P2=2*8

                     P2=16

P = 20+16

P=36

Area

A=A1+A2

A1=a^{2}                 A2=a*b

A1=5^{2}                 A2=3*5

A1=25                A2=15

A=25+15

A=40

5 0
3 years ago
Which of the following is the minimum value of the equation y = 2x2 + 5?
raketka [301]
(0, 5) is the minimum value.

Find the axis of symmetry by plugging the respective variables into -b/2a

-5/2(0) = 0

There is no b-value in our equation, or rather, the value of b is 0. To see this, y = 2x^2 + 5 can be written as

y = 2x^2 + 0x + 5

We plug 0 into f(x), establishing every x-value as 0.

f(0) = 2(0)^2 + 5
f(0) = 0 + 5
f(0) = 5

5 is now your vertex’s y-value. Plot the two values together.

(0, 5)

We know that this is a minimum because the leading coefficient is positive, meaning the the graph’s parabola will open down.
4 0
3 years ago
If y varies directly with x and y = 2 when x = 10, then what is the value of y when x = 40? 200 45 320 8
xz_007 [3.2K]

40/10=4  2*4=8

8 is your answer



6 0
3 years ago
The ratio of blue shoes to green shoes is 5:2.
ValentinkaMS [17]

Answer:

12

Step-by-step explanation:

6 * 5 is 30 6*2 is 12

7 0
4 years ago
Read 2 more answers
If a university wants to maintain a 14:1 ratio between students and teachers, how many teachers would be needed to accommodate 8
kolezko [41]
The answer is C. 64 teachers. 

14 x 64= 896 
so 1 x 64= 64
4 0
4 years ago
Read 2 more answers
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