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nevsk [136]
3 years ago
12

Can someone help me with this pls?​

Mathematics
1 answer:
Nitella [24]3 years ago
3 0
It has to be the first one
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Please study the graph and select all the true statements.
ad-work [718]

you do k12 too? what a small world

4 0
3 years ago
Use the distributive property to remove the parentheses.<br> (w-4)7
ella [17]

Answer: 7w - 28

7*w - 7*4

7w - 28

Brainliest pwease if the answer is correct! <3

4 0
3 years ago
Graph the line with slope <br> 3/4<br><br><br> passing through the point (1,4)<br><br><br> .
Valentin [98]

To graph the line, we must first find out the equation for the line in slope-intercept form (y = mx + b). So far, we only have the slope, so the line's equation is y = 3/4x + b. But, by inserting the values of x and y in the point we know, we can find the y - intercept.


4 = 3/4 + b


b = 13/4


That means that the equation of our line is y = 3/4x + 13/4. Now we can graph. But, there is another way to go about (slightly faster too). Since we know the coordinates of 1 point, we can put that line down. Then, since we know that slope is rise over run, we can say, that with a slope of 3/4, one would go 3 points up for every 4 to the right. Now we can go 3 points up and 4 points to the right of point (1,4). That would be (5, 7). Now we can graph (since we have 2 points, or an equation).


The graph looks like this:



3 0
4 years ago
(a)A train completed a journey of 850 kilometres with an average speed of 80 km/hr.
Yanka [14]

Answer:

a. 850/85 = 10.625 hr or 10 hr 37 min 30 sec

b. 6:08 AM

C. Average time is (10.625 + 10.8)/2 = 10.7125

or 10 hour 42 min 45 sec

6 0
3 years ago
The number of new cars purchased in a city can be modeled by the equation C=20t to the 2nd power, where C is the number of new c
Allisa [31]

Answer:

1998 + 5\sqrt{30}

Step-by-step explanation:

Set up the equation:

Since C(t) gives the number of cars purchased in the t-th year after 1998, then make the number of cars equal to 15 000 and solve for t - the year:

20t^2 = 15000

t^2 = 750

t = \sqrt{750} = \sqrt{10} \cdot \sqrt{25} \cdot \sqrt{3} = 5\sqrt{30}

The year will be simply 1998 + 5 \sqrt{30}

4 0
3 years ago
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