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Arlecino [84]
2 years ago
15

Evaluate the expression 9 - z when z = 4.

Mathematics
2 answers:
Gnom [1K]2 years ago
7 0
We plug in 4 for the value z

9 - z = 9 - 4 = 5
madam [21]2 years ago
6 0

Answer:

its 5 5+4=9

Step-by-step explanation:

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Help please really don’t know what the answers is
Arturiano [62]

Answer:

No

Step-by-step explanation:

The Side-Angle-Side rule of congruence

two triangles are congruent if two sides and one included angle in a given triangle are equal to the corresponding two sides and one included angle in another triangle.

8 0
3 years ago
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Help asap pls for brainliest!
Brut [27]

Answer:

D

Step-by-step explanation:

8 0
3 years ago
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Hello! How do I find the surface area of this prism? Thanks!
Studentka2010 [4]
Answer: Choice C) 124 square cm

------------------------------------------------------------------

Explanation:

Let's calculate the area of the trapezoid shown
b1 and b2 are the parallel bases; h is the height of the 2D trapezoid
b1 = 2
b2 = 5
h = 1.5

A = h*(b1+b2)/2
A = 1.5*(2+5)/2
A = 1.5*7/2
A = 10.5/2
A = 5.25
The area of one 2D trapezoid is 5.25 sq cm
There are two of these trapezoids that form the base faces of the trapezoidal prism. So the total base area is 2*5.25 = 10.5 sq cm
Keep this value (10.5) in mind. We'll use it later.

------------

Now onto the lateral surface area (LSA)
It turns out that the formula for the LSA is
LSA = p*d
where 
p = perimeter of the trapezoid shown
d = depth or height of the 3D trapezoid (I'm not using h as it was used earlier)
This formula works for any polygonal base. It doesn't have to be a trapezoid.

In this case the perimeter is,
p = 1.7+2+2.65+5
p = 11.35

So
LSA = p*d
LSA = 11.35*10
LSA = 113.5

Add this LSA to the base area found earlier
10.5+113.5 = 124

The total surface area is 124 square cm
8 0
4 years ago
How do you answer this?
kobusy [5.1K]

Answer:

<h2>x= -3/2</h2>

Step-by-step explanation:

((4)²)^x = 1/(4)³

4²^x = 4³

thus the powers are same then

2x =-3

<h2>x=-3/2</h2>
8 0
3 years ago
Read 2 more answers
Which expression is equivalent to the fraction below?<br> 3/5
vladimir1956 [14]

Answer:

.6, 6/10, 15/25

Step-by-step explanation:

hope this helps!❄︎

8 0
2 years ago
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