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Hoochie [10]
3 years ago
13

Twice the difference between x and k

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
8 0
Twice the difference between x and k is 2(x-k)
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WRITE 0,000003 56 IN SCIENTIFIC NOTATION ​
Elanso [62]

Answer:

3.56X10^-6

Step-by-step explanation:

In converting numbers to scientific notation, simply move the decimal point of the number until the numerical coefficient is greater than 1 but less than 10. Be sure to take note of the following:

1. The numerical coefficient.

2. Number of times we move the decimal point. It will be the exponent with the base of 10.

3. The direction we take in moving the decimal point. If the direction is to the right, take the negative sign for the exponent. If the direction is to the left, take the positive sign for the exponent.

Here, we move the decimal point of 0.00000356 to the right 6 times. So, we have now 3.56X10^-6.

5 0
3 years ago
Please help me for this question
Nezavi [6.7K]

Answer:

Mid-point: (0,-5)

Equation: y=\frac{7}{3}x-5

Step-by-step explanation:

To find the mid-point of AB, simply add up their x and y coordinates and divide by 2 respectively to find their middle point.

(\frac{{x__A}+{x__B}}{2},\frac{{y__A}+{y__B}}{2})

(\frac{{-7}+{7}}{2},\frac{{-2}+{(-8)}}{2})

(0,-5)

To find the perpendicular slope that passes through the mid-point, we need to know the slope between AB first.

Slope of AB: \frac{{y__2}-{y__1}}{{x__2}-{x__1}} = \frac{{-8}-{-2)}}{{7}-{(-7)}} = \frac{-6}{14} = \frac{-3}{7}

Multiplying slopes that are perpendicular with each other always results in -1.

\frac{-3}{7}*m = -1

m=\frac{7}{3}

By the point slope form:

({y}-{y__1})=m({x}-{x__1})

Plug in the coordinates of the mid-point:

({y}-{(-5)})=\frac{7}{3} ({x}-{0})

Equation: y=\frac{7}{3}x-5

6 0
3 years ago
Help please, it would be appreciated greatly..
allochka39001 [22]

Answer:

A. x^21

Step-by-step explanation:

This is because when multiplying with same number on the bottom, it will stay the same. So, when multiplying the bottom stays the same while you add all the exponents.

Hope this helps:)

5 0
3 years ago
Help me with this plsss
Brrunno [24]

1.

a. 8 x 7 x 1/2 = 56 x 1/2 = 28

b. 24 x 14 x 1/2 = 336 x 1/2 = 168

c. 5 x 12 x 1/2 = 60 x 1/2 = 30

d. 4 x 4.8 x 1/2 = 19.2 x 1/2 = 9.6

2.

two triangles: 2(4 x 8 x 1/2) = 4 x 8 = 32

rectangle: 15 x 8 = 120

total area: 32 + 120 = 152

5 0
3 years ago
(20 PTS) WILL GIVE BRAINLIST <br> could you help me w this?
vlabodo [156]

Answer:

Replace the “x" with actual numbers these as the answers after working on each; = 7/5

= 2

= - 2

= 1/2

= 5/3

7 0
3 years ago
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