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Kay [80]
3 years ago
10

How to determine if a statement is a negation of another statement

Mathematics
1 answer:
alexira [117]3 years ago
7 0

Answer:

One thing to keep in mind is that if a statement is true, then its negation is false (and if a statement is false, then its negation is true).

Step-by-step explanation:

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Kirk used 10.2 centimeters of tape to wrap 3 presents. How many presents did Kirk wrap if he used 23.8 centimeters of tape?
insens350 [35]

Answer:

Kirk wrapped 7 presents with those 23.8 cm of tape.

Step-by-step explanation:

Figure out the unit rate:

10.2 cm tape

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

  3 presents

or

   3 presents

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

  10.2 cm tape

Multiplying this by 23.8 cm results in the number of presents Kirk wrapped with that much tape:

(3 presents)(23.8 cm tape

--------------------------------------- = 7 presents

           10.2 cm tape

Kirk wrapped 7 presents with those 23.8 cm of tape.

7 0
4 years ago
The class president wants to survey the students at the high school about the selection of food offered by the school cafeteria.
mash [69]

Answer: C.Sample 2: 10 boys and 35 girls

Step-by-step explanation:

The class president wants to survey the students at the high school about the selection of food offered by the school cafeteria. The president knows that there are 150 boys and 175 girls.

girls in the high school. Which of the following is a representative sample of the high school population?

A.Sample 4: 7 boys and 6 girls

B.Sample 1: 10 boys and 10 girl

C.Sample 2: 10 boys and 35 girls

D.Sample 3: 6 boys and 7 girls

6 0
3 years ago
Read 2 more answers
Write the direct variation function given that y varies directly with x, and y = 1.5 when x = 5.
Cloud [144]

Answer:

y=0.3x

Step-by-step explanation:

Formula = K=\frac{y}{x}

y α x

y = kx

Where k is the constant of proportionality.

When y = 1.5; x = 5;

We substitute these known values in the equation,

y = kx

1.5 = k5

Dividing both sides of the equation by 5 to find the value for k, we have

1.5/5= k0.3/5

Therefore,

K = 0.3

Having found the value of k,

We substitute this value into the relationship

y = kx

Therefore we have,

y = 0.3x.

The direct variation function is therefore,

y = 0.3x.

[RevyBreeze]

4 0
3 years ago
Calculate the area of the polygons in the picture. All measurements are in cm.​
Arte-miy333 [17]

Why is there a b) in the middle of the polygon?  Question creators, proofread your figures.

a) Two triangles and a kite

Top triangle (1/2)(5.53)(1.5)

Bottom triangle (1/2)(6)(2)

The kite is like two triangles with shared base 2+3=5 and combined height 7,

(1/2)(5)(7)

Adding it up,

area = (1/2)(5.53)(1.5) +  (1/2)(6)(2) + (1/2)(5)(7) = 27.6475

Answer: 27.6475  sq cm

b) Three triangles, including one right triangle

Area = (1/2) (6.7)(3) + (1/2)(6.2)(2.5) + 1/2(6.2)(2) = 24.

Answer: 24 sq cm

4 0
4 years ago
Having exactly the same shape and size
e-lub [12.9K]

Answer:

If two things have the same shape and size then they are <em>congruent</em> to one another. If they are only the same shape but not size, then they are similar.

4 0
2 years ago
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