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Ne4ueva [31]
4 years ago
6

Hal read 114 pages of his book during vacation. This was 60% of the book. How many pages does Hal have left to read?

Mathematics
1 answer:
Nadusha1986 [10]4 years ago
5 0

Answer:

Step-by-step explanation:

so... 60% of his entire book is 114 pages...

let x represent his entire book

turn ur percent to a decimal

" of " means multiply and " is means equals

0.60x = 114...divide both sides by 0.60

x = 114/ 0.60

x = 190 pages left <===

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My question is y = 4x + 1 and my options are<br>a. 4, 3 <br>b. 4,1<br>c. 1,4<br>d. 3,1​
Akimi4 [234]

Answer:

B. 4,1

Step-by-step explanation:

7 0
3 years ago
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In AWXY, WY is extended through point Y to point Z, m_YW X = (2x + 12),
Alja [10]

Answer:

Sum of two interior angles=exterior angle

\\ \sf\longmapsto 2x+12+2x+5=7x-1

\\ \sf\longmapsto 4x+17=7x-1

\\ \sf\longmapsto 3x=18

\\ \sf\longmapsto x=6

Done!

4 0
3 years ago
Sin 3pi divided by 4
KATRIN_1 [288]
Sin 3pi/4 is angle 135 degrees or 45 degrees below 180 degrees. Hence it's opposite side is 1 and adjacent is 1, implying the hypothenus is sqrt(2). Hence

Sin 3pi/4 = 1/sqrt(2). Now multiply by sqrt(2)/sqrt(2) to get:

[1/sqrt(2).] * [sqrt(2)/sqrt(2)] = sqrt2)/2
6 0
4 years ago
Trigonometry
Natasha_Volkova [10]

Answer:

Step-by-step explanation:

For a triangle the area is

A=\frac{1}{2}bh

If our triangle is isosceles and the 2 congruent sides each measure 4 and they include an angle of 40 degrees, let's say that the vertex angle is 40 and the sides that are not the base each measure 4.  If we drop an altitude from the vertex to the base, we cut the triangle into 2 right triangles, with the vertex angle being 20 degrees and the hypotenuse being 4.  To find the base, then, which is opposite the angle, we use the sin ratio:

sin(20)=\frac{b}{4} and

4sin(20) = b so

b = 1.368

But we need the whole base, and that is only half of it.  So

2b = 2.736

To find the height, which is adjacent to the angle, we use the cos ratio:

cos(20)=\frac{h}{4} and

4cos(20) = h so

h = 3.759

Now we have enough info to find the area of the triangle using the triangle area formula from above:

A=\frac{1}{2}(2.736)(3.759) and

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7 0
3 years ago
9/17 15/34 6/17 9/34 geometric sequence?
zysi [14]
In a geometric sequence each number after the first is found by multiplying the previous number by a fixed number called the common ratio.

In an arithmetic sequence, each term is equal to the previous term plus or minus a constant called the common difference.

In your problem we have a sequence of numbers that appears to be decreasing in value, but on the surface it doesn't appear to be by any constant number... but if you look closely, the denominator 34 is exactly twice the other denominator 17. This would lead me to look at a common denominator to see if anything takes shape...

9/17 = 18/34
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Now we see that each number is the previous number minus 3/34, so we have a common difference of 3/34.

This would match the definition of an arithmetic sequence and NOT a geometric sequence.
6 0
3 years ago
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