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svet-max [94.6K]
3 years ago
13

ALGEBRA! NEED HELP!

Mathematics
1 answer:
grigory [225]3 years ago
5 0
The base's length is 8 and it's width is 7, so it's perimeter will be 2\cdot (7+8)=30 . To find the lateral area you shoul multiply this with it's height. So, 30\cdot h=150\\ h=\frac { 150 }{ 30 } \\ h=5 (h is height).

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Find the area of the given triangle. Round the answer to the nearest tenth.
lions [1.4K]
Using Heron's formula:
A = √(p(p-a)(p-b)(p-c)) where a,b,c are the sides of the triangle and p is half the perimeter.
The answer is B. 149.4 square units.
3 0
3 years ago
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Using the data shown on the graph, which statements are correct
Tomtit [17]

Answer:

B, C, and E

Step-by-step explanation:

Let's consider each option given the graph shown above:

A. The ratio of x/y can be found using any point on the line, say, (5, 6). Thus, ratio of x/y = 5/6, not 6/5.

Option A is not correct.

B. If you check for y/x for any given point along the line, we would have the same result. So the ratio of y/x is consistent. Option B is correct.

C. The graph has a line that runs through the point of origin, so therefore, it represents a proportional relationship.

Option C is correct

D. If option C is correct, then option D is not correct.

E. If option C is correct, then option E is correct.

8 0
3 years ago
Identify the factors of the terms of the expression 5+6a+11b
emmainna [20.7K]
Letters used to represent values or unknown quantities that can change or vary. One example of an algebraic expression is 3x – 4. Notice the variable,
3 0
3 years ago
Find the slope of the line graphed below
igomit [66]

We are given two points: (-1, -1) and (1, -4). Slope is calculated as the change in y over the change in x, or rise over run.

The change in y is the difference of the two y coordinates (it doesn't matter the order): -1 - (-4) = 3

The change in x is the difference of the two x coordinates (this order depends on the order that you subtracted the y coordinates; they must be the same order): -1 - 1 = -2.

So, the slope is 3/-2

4 0
3 years ago
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Katarina [22]

Answer:

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Step-by-step explanation:

Since, according to associative property of multiplication,

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Here, the given expression,

2 × ( 5 × 1.5 ),

By applying the associative property of multiplication,

( 2 × 5 ) × 1.5,

Hence, the appropriate expression in the first box is '(2×5)'

And, the appropriate number in the second box is '1.5'.

8 0
3 years ago
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