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Sonbull [250]
3 years ago
15

Find x and y Need done before 11:59

Mathematics
2 answers:
katen-ka-za [31]3 years ago
6 0

Answer:

Step-by-step explanation:

(3x + 6)° = 78°

3x = 72°

x = 24°

z = 180° - 78° = 102°

padilas [110]3 years ago
4 0

Answer:

x= 102

z= 24

Hope it will help you :)

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Subtract. 5x^2-5x+1-(2x^2+9x-6)
Talja [164]
<h2>Hello!</h2>

The answer is:

3x^{2} -14x+7

<h2>Why?</h2>

To solve the problem we need to add/subtract like terms. We need to remember that like terms are the terms that share the same variable and the same exponent.

For example, we have:

x^{2} +2x+3x=x^{2} +(2x+3x)=x^{2}+5x

We have that we were able to add just the terms that were sharing the same variable and exponenr (x for this case).

So, we are given the expression:

5x^2-5x+1-(2x^2+9x-6)=5x^{2}-2x^{2}-5x-9x+1-(-6)\\\\(5x^{2}-2x^{2})+(-5x-9x)+(1-(-6))=3x^{2}-14x+7

Hence, the answer is:

3x^{2} -14x+7

Have a nice day!

4 0
3 years ago
One of the legs of a right triangle measures 2 cm and its hypotenuse measures 19 cm.
pentagon [3]

Answer:

18.9

Step-by-step explanation:

361-4 = 357

the root of 357 is 18.9 when rounded

8 0
2 years ago
In a polygon, the segment joining two non-consecutive vertices is called the Select one: a. diagonal b. radius c. diameter d. ve
vitfil [10]

Answer:

It's called diagonal

8 0
3 years ago
Alex goes to the store to buy groceries he has 20 to spend at the store write an inequality to represent the amount Alex can spe
den301095 [7]

ax+by=20

a represents how many first items you bought

x represents the cost of the first item

b represents how many second items you bought

y represents the cost of the second item

4 0
3 years ago
Apples cost four times as much as oranges per pound. Apples are $2.80 per pound. How much do oranges cost per pound? *
inessss [21]

Step-by-step explanation:

Apples cost four times as much as oranges per pound.

If the cost of orange =x

then, cost of apples =4x

But,

the costs of apples =2.80$

So,4x=2.80

\tt{ x=\dfrac{2.80}{4} } ⠀

\tt{ x=0.70\$ } ⠀

so,oranges costs for per pound =0.70$

8 0
3 years ago
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