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3 years ago

What is the value of 3 1/4 minus 1 7/8?

Mathematics

1 answer:

Jlenok [28]3 years ago

7 0

Answer:

1.375

Step-by-step explanation:

given, (3 1/4) - (1 7/8) = 1.375

simplify, 3.25 - 1.875 = 1.375

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Subtract.<br> (9x² + 5x² + 5x – 3) - (8x - 2)

Afina-wow [57]

Answer:

=14x² −3x −1

Step-by-step explanation:

simplifying step-by-step.

9x2+5x2+5x−3−(8x−2)

Distribute the Negative Sign:

=9x2+5x2+5x−3+−1(8x−2)

=9x2+5x2+5x+−3+−1(8x)+(−1)(−2)

=9x2+5x2+5x+−3+−8x+2

Combine Like Terms:

=9x2+5x2+5x+−3+−8x+2

=(9x2+5x2)+(5x+−8x)+(−3+2)

=14x2+−3x+−1

Answer:

=14x2−3x−1

5 0

3 years ago

The light intensity I (in lumens) at a depth of x feet in Lake Elizabeth is given by the formula log (StartFraction Upper I Ove

antiseptic1488 [7]

Answer:

The light intensity at a depth of 24 feet is 3.0143 lumens.

The light intensity will be 7 lumenus at the depth of 9.3732 feet approximately.

Step-by-step explanation:

Consider the provided formula.

$log(\frac{I}{12})=-0.025x$

Where I is the intensity of light and x is the depth.

Part (A) Find the light intensity at a depth of 24 feet.

Substitute x=24 in above formula.

$log(\frac{I}{12})=-0.025(24)$

$log(\frac{I}{12})=-0.6$

$\frac{I}{12}=10^{-0.6}$

$\frac{I}{12}=0.2512$

$I=3.0143$

Hence, the light intensity at a depth of 24 feet is 3.0143 lumens.

Part (B) At what depth is the light intensity 7 lumens

Substitute I=7 in above formula.

$log(\frac{7}{12})=-0.025x$

$-0.23433=-0.025x$

$0.23433=0.025x$

$x=\frac{0.23433}{0.025}$

$x=9.3732$

Hence, the light intensity will be 7 lumenus at the depth of 9.3732 feet approximately.

3 0

3 years ago

What is the linear function represented by the graph?

sergejj [24]

Answer:

y=-½x+1

Step-by-step explanation:

The slope is negative because it goes down from left to right

The y-intercept is ½ because the point where the line meets the y-axis is ½

6 0

3 years ago

How many different triangles can you make if you are given these three length for sides(20 pts answerr pleaseee)

GarryVolchara [31]

Answer:

1 triangle

Step-by-step explanation:

With three forced sides you can only have 1 triangle as to make it different you would have to change a side length which wouldn't be possible. Where as if it was 3 angles then it would be infinitely many.

6 0

3 years ago

Read 2 more answers

Which glide reflection describes the mapping mc120-2.jpgABC mc120-3.jpg mc120-4.jpgDEF?

sweet-ann [11.9K]

<span>
B. (x,y) (x+2, y-1) and reflected across y=-1</span>

4 0

3 years ago