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AysviL [449]
3 years ago
8

Help me plz 13 points and a brainliest

Mathematics
2 answers:
amm18123 years ago
8 0
2 cm x 9 cm
3 cm x 6 cm

aksik [14]3 years ago
8 0
18 / 4 = 4.5, just in case its a square. But this is not a whole number so... 

2 and 7. 2 + 2 + 7 + 7 = 18. 

6 and 3. 6 + 6 = 12 + 3 + 3 = 18
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C)
DochEvi [55]

Answer:

4 quarters

10 tenths

Step-by-step explanation:

<h3>Tenths</h3>

\frac{1}{10}

<h3>Quarter</h3>

\frac{1}{4}

<h3>Whole</h3>

1

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

1 = \frac{1}{4}+\frac{1}{4}+\frac{1}{4}+\frac{1}{4}

∴ There are <u>4</u><u> </u><u>quarters</u> to make a whole

1 = \frac{1}{10}+\frac{1}{10}+\frac{1}{10}+\frac{1}{10}+\frac{1}{10}+\frac{1}{10}+\frac{1}{10}+\frac{1}{10}+\frac{1}{10}+\frac{1}{10}

∴ There are <u>10</u><u> </u><u>tenths</u><u> </u>to make a whole

5 0
3 years ago
Write an equation to show the best way to estimate 208 ÷ 7 using compatible numbers
Korvikt [17]

Answer:

210 ÷7 = 30

Step-by-step explanation:

We can round the numbers to numbers that make the math easier

I will round 208 to 210

We know 21 divide by 7 is 3

210 ÷7 = 30

This is very close to the actual answer.

208÷7 = 29.71428571........

5 0
3 years ago
A triangle has side lengths of (1.3f+2.9g)(1.3f+2.9g) centimeters, (1.1f-7.7h)(1.1f−7.7h) centimeters, and (2.3h+1.5g)(2.3h+1.5g
VikaD [51]

Answer:

Perimeter of the triangle = (2.4f+4.4g-5.4h) centimeters.

Step-by-step explanation:

It is given that, a triangle has side lengths of (1.3f+2.9g) cm, (1.1f-7.7h)cm, and (2.3h+1.5g) cm.

We have to find the expression which represents the perimeter, in centimeters, of the triangle.

Perimeter of a triangle = Sum of its all the sides.

Perimeter=(1.3f+2.9g)+(1.1f-7.7h)+(2.3h+1.5g)

On combining like terms, we get

Perimeter=(1.3f+1.1f)+(2.9g+1.5g)+(-7.7h+2.3h)

Perimeter=2.4f+4.4g+(-5.4h)

Perimeter=2.4f+4.4g-5.4h

Therefore, the perimeter of the triangle is (2.4f+4.4g-5.4h) centimeters.

8 0
3 years ago
Find the equation of the line that is perpendicular to y=5 through the point (-4,-6)
Nikolay [14]

Answer:

x=-4

Step-by-step explanation:

we know that

The given equation y=5 is a horizontal line (is parallel to the x-axis)

The slope of the given line is equal to zero

A perpendicular line to the given line is a vertical line (parallel to the y-axis)

so

The equation of a vertical line is equal to the x-coordinate of the point that passes through it

The point that passes through it is (-4,-6)

therefore

The equation of the perpendicular line is

x=-4

4 0
3 years ago
A paper hat is folded into the shape of a kite, as shown.
Sedbober [7]

Answer:                              

the answer is D. 22

3 0
3 years ago
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