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nydimaria [60]
3 years ago
8

Can someone help me solve this

Mathematics
1 answer:
Rainbow [258]3 years ago
4 0

Answer:

x=21

Step-by-step explanation:

since the triangle is isosceles, the two lower angles are equal.

2(2x+3)=90

4x+6=90

4x=84

x=21

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I’m not smart so help me please get it right
MakcuM [25]

Answer:

Surface area = 148cm^2

Volume = 120cm^2

Step-by-step explanation:

You are smart don't say you're not. :)

6 0
3 years ago
Read 2 more answers
remember , when writing a equation, fraction or a negative do not add any spaces for example -3/4 is correct but - 3 / 4 would b
nataly862011 [7]

Answer:

a) infinite values of y are possible , one such value is -7 for x=0

b) 35

Step-by-step explanation:

a) this is because for every value of x there would be a corresponding value of y

b) the equation follows equation of straight line i.e y=mx+c , so , m=35

hope the above solution will help you

6 0
3 years ago
Question 17 two trains leave stations 252 miles apart at the same time and travel toward each other. one train travels at 100 mi
VLD [36.1K]
The distance between them is 252 miles
For meeting they reduce the distance with 252 miles
in an hour they reduce distance with 100+80=180 miles
180 miles...........1 hour
252 miles.............x hours
------------------------------------
x=252 /180=1,4 hours=84 minutes
7 0
4 years ago
Two numbers total 89 and have a difference 0f 13. find the two numbers
attashe74 [19]
X + Y = 89
X - Y = 13

So, X = 13 +Y

(13 +Y) + Y = 89
2Y = 89 - 13
Y = 38
X= 51 (13+38)
5 0
3 years ago
Why is 9 a square number:
Nataly_w [17]
Square number actually means the product can be multiplied by the same number, for example
2 = 1x1
4 = 2x2
9= 3 x 3
so 9 can be square rooted so it's a square number
also 4x4 is 16 not 8 and 8x8 is 64 not 16 :)
4 0
4 years ago
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