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3 years ago

—13 < -x+5< 8 iѕ -21 True or false?

Mathematics

1 answer:

Andrej [43]3 years ago

6 0

This is True I believe

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What is the value of a?<br> 45°<br> (2x-5)

aniked [119]

Answer:

x=70

Step-by-step explanation:

To solve this problem, you set up the equation 45+(2x-5)=180

Next, subtract 45 from 180 to get the equation 2x-5=135

After that, add 5 to 135 to get 2x=140

Divide 140 by 2 to get X=70

7 0

3 years ago

0. ‘ Alex is making 12 pennants for i " the school fair The pattern he is using to is make the pennants is shown in the 1 The fa

Svetradugi [14.3K]

Answer: Total cost to make 12 pennants is $52.5.

Step-by-step explanation:

Since we have given that

There is a rectangle and a triangle.

Length of rectangle = 1 ft

Width of rectangle = 3 ft

So, Area of rectangle is given by

$Area=Length\times Breadth \\\\Area=1\times 3\\\\Area=3\ ft^2$

Base of triangle = 1 ft

Height of triangle = 1 ft

So, Area of triangle is given by

$Area=\frac{1}{2}\times base\times height\\\\Area=\frac{1}{2}\times 1\times 1\\\\Area=\frac{1}{2}\ ft^2$

So, Total area of the pennants will be

$3+\frac{1}{2}\\\\=\frac{6+1}{2}\\\\=\frac{7}{2}\ ft^2$

Number of pennants = 12

Cost per square foot of pennant = $1.25

So, Total cost for 12 pennants is given by

$12\times \frac{7}{2}\times 1.25\\\\=\$52.5$

Hence, Total cost to make 12 pennants is $52.5.

3 0

3 years ago

Read 2 more answers

X² + 3x – 7=0<br> Solve<br> X= or x=

svetoff [14.1K]

Answer:

x = 2

Step-by-step explanation:

X² = 3x - 7 = 0

X² = 3x = 7

(x + 1) (x + 2) = 7

(x + 1) + x = 7 - 2

x + x = 7 - 3

2x = 4

x = 4/2

x = 2

8 0

3 years ago

Help please!!!!!!!!!!

Lelechka [254]

Answer:

I think it's 96 not sure though

3 0

3 years ago

Graph the image of trapezoid ABCD after a translation 3 units left .

Kay [80]

Answer:

A: (-8, -1)

B: (2, -1)

C: (2, 5)

D: (-6, 5)

Step-by-step explanation:

If the trapezoid ABCD was able to translate 3 units to the left, we'll only need to calculate for all the input values!

Trapezoid in present:

A - -5

B - 5

C - 5

D - -3

Now move the units to the left!

Trapezoid in the future:

A - -8

B - 2

C - 2

D - -6

Then add the y values into the units

A: (-8, -1)

B: (2, -1)

C: (2, 5)

D: (-6, 5)

*************************************************

7 0

3 years ago