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Sergeeva-Olga [200]
3 years ago
8

PLEASE I NEED SOMEONE

Mathematics
1 answer:
Pepsi [2]3 years ago
4 0

Answer:

D

Step-by-step explanation:

please give brainliest!

for example -3 + 6 is 3. --positive sign

-9+8 is -1 --negative sign

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Solve the equation <br> y-x=17<br> y=4x+2
gogolik [260]
Y-x =17
y = -x + 17

substitute this into the second equation

y = 4x + 2
-x + 17 = 4x + 2
0= 5x -15
15/5 = 5x/5
3 = x
4 0
3 years ago
Find the value of x in the triangle shown below.<br> a. x=80<br> b. x=48<br> c. x= 32<br> d. x=12
yulyashka [42]

THEOREM:

• <u>Pythagorean theorem</u>:— In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides.

ANSWER:

By pythagorean property,

x² = 4² + 8²

x² = 16 + 64

x² = 80

x = √80 units.

So, <u>Correct choice</u> - [A] √80 units.

8 0
2 years ago
Read 2 more answers
In supply (and demand) problems, y is the number of items the supplier will produce (or the public will buy) if the price of the
SSSSS [86.1K]

Answer:

A) (17 ; 550)

B) $17/item

C) 550

Step-by-step explanation:

First we must calculate the intersection point of the two lines. Since in that point <em>y</em> has the same value in both equations, we can obtain <em>x </em>by equalling the two equations and then using that value for obtaining <em>y</em>:

5x+465=-6x+652\\5x+6x=652-465\\11x=187\\x=\frac{187}{11}\\x=17

So the value of <em>x</em> in the intersection point is 17. We now use this value with either one of the equations to obtain <em>y</em><em>. </em>Let's use the supply equation:

y=5*17+465\\y=550

So the intersection point is (17 ; 550)

Supply and demand are in equilibrium when the amount of items on supply are the same as the ones on demand. That is the point were the two lines intersect, which means the selling price is the <em>x</em> coordinate and the amount of items is the <em>y</em> coordinate, so that is a selling price of <em>$17/item</em> with a number of items of <em>550</em>.

3 0
3 years ago
A=25,b=12,c=4,d=4: a +(b+c).d
stellarik [79]
B+c is 16
16 + 25 Is 41
I don't know d sorry
3 0
3 years ago
Read 2 more answers
What is the x-intercept of the equation y=-5x+1,450?​
ladessa [460]

Substitute the value for y as 450

450=-5x+1

Solve for x

450-1=-5x

449=-5x

89.8=-x

x=-89.8

6 0
3 years ago
Read 2 more answers
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