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Fynjy0 [20]
3 years ago
10

What us the estimate 30-20.91

Mathematics
2 answers:
zimovet [89]3 years ago
8 0
9.09 I'm pretty sure this it 
aleksandr82 [10.1K]3 years ago
7 0
The estimate for 30-20.91 is 9.09 or 9.1

Hope I helped :)

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A highway engineer specifies that a certain section of roadway covering a horizontal distance of 2km should have a downgrade of
Zigmanuir [339]

Answer:

0.16km

Step-by-step explanation:

A highway engineer wants to compute  the change in elevation of a section of road. The horizontal distance of this section of road is 2km and downgrade is 8%

The slope formula is given by

m=\frac{rise}{run}=\frac{x}{y}

m = 8% = 8/100

run = y = 2km

m =\frac{x}{y}

\frac{8}{100} =\frac{x}{2}

\frac{2*8}{100} =x

x=\frac{16}{100} =0.16km

Verification:

m=\frac{0.16}{2}= 0.08=8%%

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Question needs elaboration.

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Mr West has a picture that is 4 inches wide and 7
Pepsi [2]

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Step-by-step explanation:

The ratio of new length 7 to the initial length 19 is 2.7

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Use the commutative property of multiplication to identify which expression is equivalent to 6(2)(x).
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Question 1 (Essay Worth 10 points) (01.02 MC) Part A: If (26)x = 1, what is the value of x? Explain your answer. (5 points) Part
katen-ka-za [31]

Answer:

See Explanation

Step-by-step explanation:

The question is not clear. However, I will treat the question as:

(26)x = 1

(50)x = 1

and:

(2^6)^x = 1

(5^0)^x = 1

Solving: (26)x = 1  and  (50)x = 1

(26)x = 1

Divide both sides by 26

x = \frac{1}{26}

(50)x = 1

Divide both sides by 50

x = \frac{1}{50}

Solving (2^6)^x = 1 and (5^0)^x = 1

(2^6)^x = 1

Express 1 as 2^0

(2^6)^x = 2^0

Remove bracket

2^{6x} = 2^0

Cancel out 2

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Divide both sides by 6

x = \frac{0}{6}

x = 0

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Express 1 as 5^0

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Cancel out 5^0

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