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yaroslaw [1]
2 years ago
5

6. Evaluate the following expression: 10 + 4(6-2) А. 56 B. 82 С. 18 D. 26

Mathematics
2 answers:
irakobra [83]2 years ago
7 0

Answer:

D. 26

Step-by-step explanation:

10+4(6-2)\\10+4(4)\\10+16\\26

scoray [572]2 years ago
4 0

Answer: А. 56

Step-by-step explanation:

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Gordon was thinking of a number. Gordon doubles it and gets an answer of 90.8. What was the original number?
zalisa [80]

Answer:

45.4

Step-by-step explanation:

Nx2=90.8

Divide both sides by 2

N=45.4

8 0
3 years ago
The radius of a cylinder is doubled and its height is halved. Find the ratios of their surface areas.
Inessa [10]

Answer: 1:1

Step-by-step explanation:

Let r be the radius and h be the height of a cylinder.

Formula: Curved surface area of cylinder = 2\pi rh

Now, if  radius of a cylinder is doubled and its height is halved, then new radius will be R= 2r and new height  will be  H=\dfrac{1}{2}

Now, new surface area = 2\pi RH= 2\pi(2r)\dfrac{h}{2}= 2\pi rh

Ratio of curved surface areas : \dfrac{\text{Surface area}}{\text{New surface area}}=\dfrac{2\pi rh}{2\pi rh}=\dfrac{1}{1}

Hence, the ratios of their surface areas = 1:1 .

5 0
3 years ago
Match each equation to the line of best fit that it models.
egoroff_w [7]

By applying concepts of <em>linear</em> functions, the graphs are related to the following expressions:

  1. (4/7) · x + 2
  2. x + 2
  3. (1/7) · x + 2
  4. - (1/7) · x + 2
  5. - x + 2

<h3>How to match a line with a given linear function</h3>

Graphically speaking, lines are described by <em>linear</em> functions, a kind of polynomials of grade 1, whose standard form is presented below:

y = m · x + b     (1)

Where:

  • x - Independent variable
  • y - Dependent variable
  • m - Slope
  • b - Intercept

Please notice that the slope is represented graphically by the change in the y-variable divided by the change in the x-variable and the intercept is the location where the line passes through the y-axis. Hence, the <em>resulting</em> expressions are shown in this order:

  1. (4/7) · x + 2
  2. x + 2
  3. (1/7) · x + 2
  4. - (1/7) · x + 2
  5. - x + 2

To learn more on linear functions: brainly.com/question/9330192

#SPJ1

6 0
2 years ago
three-fifths of the members of the Spanish club are girls there are a total of 30 girls in the Spanish club which statements can
Neporo4naja [7]

Answer:

\frac{3}{5}x=30 or \frac{3}{5}(\frac{5}{3})x=30(\frac{5}{3}) or x = 50

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
You drive 15 miles in one fourth of an hour. What is your average speed?
Mazyrski [523]
Hello ! I'm happy to help
the answer all revolves around this simple formula:
speed= distance/time
since you were driving for 1/4 of an hour that's 15 minutes
and we already know that you traveled 15 miles
so the speed would equal 15 miles every 15 minutes
if you want to find the total distance travelled is 15x15 =225
6 0
3 years ago
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