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Nana76 [90]
3 years ago
10

Answer 10 and 11 for 10! Points                  

Mathematics
2 answers:
Effectus [21]3 years ago
6 0
10)

one letter weigh 3.5 ounce
so 9 letters 9x 3.5 =31.5 ounces
answer is C

11)0.06 miles answer is D
denie to keith distance is 0.3 miles
keith to tim 0.2 time 0.3
0.06 miles
Andrej [43]3 years ago
5 0
Number 10 equals C. 31.5 ounces
Number 11 equals D. 0.06 mile
You might be interested in
URGENT!!! PLEASE HELP
Salsk061 [2.6K]

Answer:

c is 30.

The angles, from left to right, are:

66, 94, and 20.

Step-by-step explanation:

The three angles form a straight angle. In other words, they sum to 180. So, we can write the following equation:

(2c+6)+(3c+4)+(\frac{1}{2}c+5)=180

Let's solve for c. Combine like terms:

(2c+3c+0.5c)+(6+4+5)=180

Add:

5.5c+15=180

Subtract 15 from both sides:

5.5c=165

Divide both sides by 5.5:

c=30

So, the value of c is 30.

Now, substitute it into each of the angles to find their respective measures.

Left-Most Angle:

We have:

2c+6

Substitute 30 for c. This yields:

=2(30)+6

Multiply and add:

=60+6=66

Middle Angle:

We have:

3c+4

Substitute 30 for c:

=3(30)+4

Multiply and add:

=90+4=94

Right-Most Angle:

We have:

\frac{1}{2}c+5

Substitute 30 for c:

=\frac{1}{2}(30)+5

Multiply and add:

=15+5=20

So, our angles, from left to right, are: 66, 94, and 20.

And the value of c is 30.

And we're done!

3 0
3 years ago
Solve the equation x^3-5x^2+2x+8=0 given that -1 is a zero of f(x)=x^3-5x^2+2x+8
liraira [26]
-1^3-5(-1)^2+2(-1)+8
-1-5-2+8
-6-2+8
-8+8=0
3 0
3 years ago
Help me pls i need this right now
Debora [2.8K]

Answer:

146°

Step-by-step explanation:

The measure of the arc EF is equal to the angle subtended at the centre.

That is EF = 146°

3 0
2 years ago
Help me find surface area of this shape
lozanna [386]
The triangle <span>pyramid</span>  is made up of 4 triangles.

------------------------------------
Formula:
------------------------------------
Area of triangle = 1/2 x base x height

------------------------------------
Area of the bottom triangle:
------------------------------------
Area = 1/2 x 9 x 7.8
Area = 35.1 yd²

------------------------------------
Area of the 3 side triangles:
------------------------------------
Area = 3 [ 1/2 x 9 x 10 ]
Area = 135 yd²

------------------------------------
Total Area:
------------------------------------
Total Area = 135 + 35.1 
Total Area = 170.1 yd²

------------------------------------------------------------------------
Answer: Surface Area = 170.1 yd².
------------------------------------------------------------------------

4 0
3 years ago
D) The surface area if Lake Superior is approximately 31,700 square miles. Express
Digiron [165]

Answer:

51,013.84 kilometers

Step-by-step explanation:

1 kilometer= .6214

So you have to divide 31,700 by .6214

You get 51,013.839 or round it to 51,013.84

8 0
3 years ago
Read 2 more answers
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