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JulijaS [17]
3 years ago
10

The expression -3m - [2m + (5 - m)] + 7 was simplified as 2 - 4m. Without simplifying, explain how you can show that it has been

simplified correctly.
Mathematics
1 answer:
Nina [5.8K]3 years ago
8 0

this is how

Step-by-step explanation:

gusto ko lang magka points

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Each of the four angles of a quadrilateral measures 90°. How many rectangles can you construct using this condition?
skad [1K]
The defenition of a rectangle is that it has 4 angles that measure 90 degrees
ther are infinite legnths and inifinite numbers
intinite side legnths so infinite number of unique rectangles
4 0
3 years ago
Read 2 more answers
-2x+18-1x+4=34 Show your work
Ede4ka [16]

Answer:

x=-4

Step-by-step explanation:

-2x+18-1x+4=34

step 1 combine like terms

-2x+-1x=-3x

18+4=22

-3x+22=34

step 2 subtract each side by 22

-3x=12

step 3 divide each side by -3

x=-4

hope this helps (:

4 0
2 years ago
Read 2 more answers
Question 1<br> Simplify this expression.<br> 100<br> 10
Natali [406]

Answer:

Divide by 10

Step-by-step explanation:

Explain the question more clearly, but from what i got 100 ÷ 10 = 10

6 0
3 years ago
Read 2 more answers
I’m stuck on this and I need help...
Nat2105 [25]

Answer:

D

Step-by-step explanation:

The ratio of corresponding sides are equal, that is

\frac{4}{8} = \frac{y}{14}

3 0
3 years ago
6. a semicircle has as its diameter the hypotenuse of a right triangle shown below. determine the area of the semicircle to the
jeyben [28]

Answer:

A = 137.3cm^2

Step-by-step explanation:

Given

See attachment

Required

The area of the semicircle

First, we calculate the hypotenuse (h) of the triangle

Considering only the triangle, we have:

\cos(68) = \frac{7}{h} --- cosine formula

Make h the subject

h = \frac{7}{\cos(68)}

h = \frac{7}{0.3746}

h = 18.7

The area of the semicircle is then calculated as:

A = \frac{\pi h^2}{8}

This gives:

A = \frac{3.14 * 18.7^2}{8}

A = \frac{1098.03}{8}

A = 137.3cm^2

7 0
3 years ago
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