Answer:
Step-by-step explanation:
First find the equations of the lines, then fill in the proper inequality sign. The upper line has a y-intercept of 1 and a slope of 1/2, so the equation, in slope-intercept form is
Since the shading is below the line, the inequality sign is less than or equal to. The inequality, then, is
But the solutions are in standard form, so let's do that:
AND they do not like to lead with negatives, apparently, so let's change the signs and the way the inequality is facing, as well:
Let's do the sae with the lower line. The equation, in slope-intercept form is
since the slope is 3/2 and the y-intercept is -3. Now, since the shading is above the line, the inequality is greater than or equal to:
In standard form:
and not leading with a negative gives us
Those 2 solutions are in choice B, I do believe.
2x+26+x+25=180
3x+51=180
3x=129
X=43
43+25
Answer
mZB=68
9514 1404 393
Explanation:
Divide the figure into areas for which you have a surface area formula. Use the appropriate formula for each area, then add up the results.
Formulas are available for surface areas of a cone, cylinder, sphere, pyramid, rectangular prism, and for plane shapes that are circles, ellipses, triangles, rectangles, trapezoids, and regular polygons.
Most of the figures for which you are asked to find the area will decompose to some subset of these shapes. Take care to identify the relevant dimensions of each of the constituent parts of the area, and to make sure that all parts are accounted for. Do not allow your parts of the area to overlap, unless you intend to account for that overlap by subtracting the area that is counted more than once.
Also, use your common sense. A semicircle will have half the area of a circle, for example.
In some cases, it may be expedient to compute the area of a larger figure than the one you have, then subtract the part of that area that is missing from your figure.
Answer: B
Step-by-step explanation:
4(x+3)+2x=6(x+2)
4x+12+2x=6x+12
6x+12=6x+12
12=12
All real solutions
5+2(3+2x)=x+3(x+1)
5+6+4x=x+3x+3
11+4x=4x+3
11=3
No solution
The speed is 60 miles per hour
Step-by-step explanation:
Speed is the distance covered per unit time.
The formula for speed is:
Given
Distance = d = 120 miles
Time = t = 2 hours
Putting the values in the formula
The speed is 60 miles per hour
Keywords: Speed, distance
Learn more about speed at:
#LearnwithBrainly
