Answer:
15
Step-by-step explanation:
4 ×15= 60
60×2= 120
166-46=120
Answer:
y^2 +7y-30
Step-by-step explanation:
Step 1: Use FOIL
y·y = y^2
y· 10= 10y
-3·y= -3y
-3·10= -30
Step 2: <em>combine like terms</em>
y^2+ 10y-3y-30
7^2+ 7y-30
and thats all :)
hope this helped
We can find the QS side that is missing by using the proportions (C) QS/SR = PO/OR.
<h3>
What do we mean by proportions?</h3>
- A proportion is an equation that equalizes two ratios.
- You could, for instance, write the ratio as follows: 1: 3 in the case of 1 boy and 3 girls (for every one boy there are 3 girls)
- The proportion formula is used to determine whether two ratios or fractions are equal.
- We can find the missing value by dividing the given values.
- The proportion formula can also be written as a: B::C:D = a/b = c/d, where a and d are the extreme terms and b and c are the mean terms.
So, a proportion that is used to determine the QS's missing side
(A) QS/OR = PO/SR
- Not possible, and the bases in the denominator have the wrong base positions.
(B) PR/PO = QS/QR
- Not possible because the order of the lines does not allow for the measurement of line length. QS/SR = PO/OR.
(C) QS/SR = PO/OR
- Given that the sides and base are both perfectly positioned within the fractions, this ratio can be used to determine the length of line QS.
Therefore, we can find the QS side that is missing by using the proportions (C) QS/SR = PO/OR.
Know more about proportions here:
brainly.com/question/19994681
#SPJ13
Answer:
-2x^6
Step-by-step explanation:
Answer:
Step-by-step explanation:
Corresponding parts of congruent triangles are equal.
VT = SR
8x- 17 = 15 {Add 17 to both sides}
8x = 15 + 17
8x = 32 {divide both sides by 8}
x = 32/8
x = 4
Corresponding parts of congruent triangles are equal.
∠V = ∠S = 60°
∠W = ∠U = 90°
∠T = ∠R = 2y + 20
In Δ VUT,
∠V + ∠U + ∠T = 180 {Angle sum property of triangle}
60 + 90 + 2y + 20 = 180
2y + 170 = 180
2y = 180- 170
2y = 10
y = 10/2
y = 5