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Contact [7]
3 years ago
5

3x into 4x minus 5 plus 3 if x is equal to 1/2

Mathematics
1 answer:
Solnce55 [7]3 years ago
8 0

Answer: 8 3/4

Step-by-step explanation:

3x(4x-5+3); where x is 1/2

Substitute the value 1/2 with x

3 1/2 (4 1/2 - 5+3)

7/2 (9/2 -2)

7/2 (5/2)

35/4 = 8 3/4

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Please Help!!!!!!!!!!
Natalka [10]

Given : A submarine descends at a rate of 2.6 kilometers per hour.

If the ocean floor is 6.24 kilometers below sea level,

To Find : how long will it take the submarine to descend to the ocean floor?

Solution:

The submarine descends at a rate of 2.6 kilometers per hour.

Speed = 2.6 km/hr

The ocean floor is 6.24 kilometers below sea level,

Distance to be covered = 6.24 km

Time= Distance / Speed

= 6.24 / 2.6

= 2.4 hr

The submarine  will take 2.4 hrs  to  descend to the ocean floor

4 0
2 years ago
What number is 32% of 1,000
Jlenok [28]
It is 320 because if you divide 1000 by 10, you would get 100 (which would be equal to 10% of 1000) So if you multiply 100x3=300. then, 2% of 100 is 20, so you add that to 300 then you 320

4 0
3 years ago
If s(x) = x - 7 and t(x) = 4x2 – x + 3, which expression is equivalent to<br> to (t•s )(x)?
serg [7]

Answer:

(t•s )(x) = 4x^3 - 29x^2 + 10x - 21

Step-by-step explanation:

(t•s )(x) is the product of functions s and t:

(t•s )(x) = ( 4x^2 - x + 3)(x - 7).  Applying the Distributive Property of Multiplication, we get:

(t•s )(x) = 4x^3 - 28x^2 - x^2 + 7x + 3x - 21

which needs to be simplified by combining like terms:

(t•s )(x) = 4x^3 - 29x^2 + 10x - 21

7 0
3 years ago
.vfncjhfbntbdnfkurbtncivt mckcudv dmdj
stealth61 [152]

Answer:

.vfncjhfbntbdnfkurbtncivt mckcudv dmdj + .vfncjhfbntbdnfkurbtncivt mckcudv dmdj = .vfncjhfbntbdnfkurbtncivt mckcudv dmdj.vfncjhfbntbdnfkurbtncivt mckcudv dmdj

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Identify the function shown in this graph.
nadezda [96]

Answer:

Step-by-step explanation:

The functions are written in slope-intercept form.

The graph crosses the y-axis at (0,-2), so the y-intercept is -2.

You can eliminate D because its y-intercept is +2, not -2.

(1,1) and (0,-2) are points on the line.

The slope of the line is (-2-1)/(0-1) = 3

You can eliminate B because its slope is ⅓.

Eliminate C because its slope is -3, not 3.

Answer B

4 0
2 years ago
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