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Rufina [12.5K]
3 years ago
5

3b + a2 A=1 B=1 For a test

Mathematics
1 answer:
Shalnov [3]3 years ago
4 0

Answer:

5

Step-by-step explanation:

the answer is 5 bc 3×1=3 and 1×2=2 and 3+2=5

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What is the area of △STU rounded to the nearest tenth?
valentinak56 [21]

Answer:

38.7 units²

Step-by-step explanation:

4.6/SV = SV/8.1

SV² = 37.26

SV = 6.1

area = 1/2(8.1)(6.1) + 1/2(4.6)(6.1) = 38.7 units²

4 0
3 years ago
I don't understand how to do this question, I need help<br><br> Find the value of x in each diagram
Korvikt [17]

Answer:

A. x = 8.

B. x = 31.

C. x = 32.

Step-by-step explanation:

Here. the sum of the 2 parallel sides of the trapezoid = 2 * length of the middle line segment.

MN + RS = 2PQ

32+ x = 2*20

x =  40 - 32

x = 8.

MN + RS = 2PQ

20 + 42 = 2PQ

2x =  62

x = 31

MN + RS = 2PQ

22 + 42 = 2PQ

2x =  64

x = 32.

5 0
3 years ago
Solve the expression (7th grade math):<br><br> 17 - 1/5x + 2/3x - 92 + 7/10x
Rzqust [24]

Answer:

The answer is 7/6x - 75.

Step-by-step explanation:

17 - 1/5x +2/3x - 92 + 7/10x

17 - 6/30x + 20/30x - 92 + 21/30x

-6/30x + 20/30x + 21/30x = 35/30x or 7/6x

17 - 92 = -75

7/6x - 75

3 0
2 years ago
What is (-2)* (-2)* (-2) using exponents​
OLga [1]
2 to the power of -3 or 2^-3
4 0
3 years ago
I NEED THIS FAST a sample of an unknown liquid has a volume of 30.0 mL and a mass of 6 g. whats the density ? show your work and
Doss [256]

Answer:

The density is 0.2g/mL^2.

Step-by-step explanation:

  1. Use the formula: D=\frac{m}{V} (where v=volume, and m=mass). The mass of the liquid is 6g. The volume of the liquid is 30mL.
  2. To determine density, insert the values into the formula (D=\frac{6g}{30mL}).
  3. Divide: 6g/30mL= 0.2g/mL^2
6 0
3 years ago
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