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noname [10]
2 years ago
7

If x = 7, what is the value of 3 times x²​

Mathematics
1 answer:
stira [4]2 years ago
5 0

Answer:

147

Step-by-step explanation:

x = 7,

3x² = 3 × 7²

= 3 × 49

= 147

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The drug store is having a sale where all merchandise is 1/4 off. A woman buys $30 of merchandise at a sale price. What would sh
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$30 = 75%, so divide it by three and you got your 25%, which ia $10.
$10 * 4 = $40.

So the answer is $40.

Hope this helps.
4 0
3 years ago
In 1911, the temperature in Rapid City,
Sliva [168]

The 3.1 °F/min rate of change of the temperature and 15 minutes change duration gives the change in temperature as 46.5 °F

<h3>How can the change in temperature be found from the rate of change?</h3>

The rate at which the temperature changed = 3.1 °F/min

The duration of the change in temperature = 15 minutes

The relationship between the change in temperature, the rate of change in temperature and the time can be presented as follows;

3.1  ^{\circ} F/min =  \frac{ \delta T }{\delta t}  =  \frac{ \Delta T }{ \Delta t}

Where;

∆T = The required change in temperature

∆t = The duration of the change = 15 minutes

Which gives;

∆T = 3.1°F/min × 15 minutes = 46.5 °F

  • The change in temperature, ∆T = 46.5 °F

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8 0
1 year ago
Can you help me with my maths?
Assoli18 [71]

Answer:

45. B, 9 + 0 = 9

46. D. 9 x 1 = 9

47. D. 0

48. B. 1/6 x 6 = 1

49.  A

Step-by-step explanation:

3 0
3 years ago
A.<br> x = 40<br> c.<br> x = 20<br> b.<br> x = 10<br> d.<br> x = 15
velikii [3]

Answer:

B

Step-by-step explanation:

Multiply x/20 each side

6 0
3 years ago
Read 2 more answers
What is the volume of the cone? cone v = one-third b h startfraction 70 over 3 endfraction pi centimeters cubed startfraction 14
Bas_tet [7]

Using the assumed values, the volume of the cone is V = \frac {250}3\pi

<h3>How to determine the volume of the cone?</h3>

The volume of a cone is calculated using:

V = \frac 13\pi r^2h

The parameters are not given.

So, we use the following assumed values

Radius, r = 5

Height, h =10

Using the assumed values, we have:

V = \frac 13\pi * 5^2 * 10

Evaluate the product

V = \frac {250}3\pi

Hence, using the assumed values, the volume of the cone is V = \frac {250}3\pi

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7 0
2 years ago
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