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Mumz [18]
3 years ago
8

select all equations that have x = 3 as a solution. A. X + 7 = 10 B. 3+ x = 3 C. x • 3 = 1 D. 4 • x = 12 ​

Mathematics
2 answers:
castortr0y [4]3 years ago
7 0

Answer:

A.

Step-by-step explanation:

7+3=10 so it will be A, you're welocme

iren2701 [21]3 years ago
6 0

Answer:

A and D

Step-by-step explanation:

A) x + 7 = 10

D) 4 × x = 12

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50 POINTS FOR CORRECT AWNSER!
Grace [21]

Answer:

\mathsf{y < \dfrac47x-4}

Step-by-step explanation:

<u>First, find the equation of the line</u>.

<em>Slope-intercept form</em> of a linear equation:  \mathsf{y=mx+b}

(where m is the slope and b is the y-intercept)

From inspection of the graph, the y-intercept is at (0, -4)

Therefore, b = -4

Choose another point on the line, e.g. (7, 0)

Now use the slope formula to find the slope:

\mathsf{slope=\dfrac{y_2-y_1}{x_2-x_1}}

where:

  • \mathsf{(x_1,y_1)=(0,-4)}
  • \mathsf{(x_2,y_2)=(7,0)}

\implies \mathsf{slope=\dfrac{0-(-4)}{7-0}=\dfrac47}

Therefore, the equation of the line is:

\mathsf{y=\dfrac47x-4}

For an inequality, the dashed line means < or >  (whereas a solid line means ≤ or ≥)

As the shading is below the line, we need to use <

Therefore, the final inequality is:

\mathsf{y < \dfrac47x-4}

8 0
2 years ago
A triangle right prism is cut perpendicular to the base what is the shape of the cross section
Margarita [4]

Answer:

The square-shaped slice can be made from a slice parallel to the base of a right rectangular prism, cube, and right rectangular pyramid with a square base. The triangle-shaped slice and isosceles trapezoid-shaped slice can be made with a slice made perpendicular to the base of a right rectangular pyramid.

4 0
4 years ago
a man covers a distance of 15kn, in 3 hours partly by walking and partly by running. if he walks at 3km/h and runs at 9km/h, fin
irinina [24]
Speed = distance/time
distance = speed * time

let x = time covered by running
15 = run distance + walk distance
15 = 9(x) + 3(3-x)
15 = 9x + 9 - 3x
15 - 9 = 6x
6 = 6x
x = 1 hour

Therefore:
Running distance = speed * time
RD = 9km/hr * 1 hr
RD = 9km

5 0
3 years ago
Sketch the graph of the function by (a) applying the Leading Coefficient Test, (b) finding the zeros of the polynomial, (c) plot
pshichka [43]

Answer:

C

Step-by-step explanation:

If its C I'm sorry That seems correct but I don't know for sure, just my advice!

5 0
3 years ago
-3x · 5x?<br> 3<br> B) -15x3<br> х<br> A)<br> 15<br> C) –8x4<br> D) 2x2
qaws [65]
Do You Have A Picture Cause I’m confused
5 0
3 years ago
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