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3 years ago

Simplify the expression. (7x4)? (7x4)2 =

Mathematics

2 answers:

TEA [102]3 years ago

5 0

Answer:

Step-by-step explanation:

i took the test

NemiM [27]3 years ago

4 0

56 ??? i’m pretty sure that’s the answer

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Sarah drove 40 miles per hour . In 3 hours sarah drove 120 miles . Which is a vaild proportion to represent the problem?

antoniya [11.8K]

Answer:

Step-by-step explanation:

1/40=3/120

5 0

3 years ago

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What is third of 1 5/8

stiv31 [10]

1 5/8 = 13/
8
= 1 5/
8
= 1.625
Spelled result in words is thirteen eighths (or one and five eighths).

How do you solve fractions step by step?
Conversion a mixed number 1 5/
8
to a improper fraction: 1 5/8 = 1 5/
8
= 1 · 8 + 5/
8
= 8 + 5/
8
= 13/
8

To find new numerator:
a) Multiply the whole number 1 by the denominator 8. Whole number 1 equally 1 * 8/
8
= 8/
8

b) Add the answer from previous step 8 to the numerator 5. New numerator is 8 + 5 = 13
c) Write a previous answer (new numerator 13) over the denominator 8.

One and five eighths is thirteen eighths

4 0

2 years ago

Which of the following months would be the darkest at the South Pole?

Juli2301 [7.4K]

Answer:

February

Step-by-step explanation:

February would be the darkest at the South Pole. In the month of February, the temperature raises to -38 to -51 degrees over south pole.

5 0

3 years ago

6. a) Calculate the areas of the three squares. b) Is the triangle a right triangle? Explain. 3 cm 4 cm 2 cm

viktelen [127]

Answer

The total area of the squares = 29 square cm

The triangle is not a right-angled triangle

Step-by-step explanation:

We are given three squares

The first square has a length of 4cm

The second square has a length of 3cm

The third square has a length of 2cm

Part A

Total area = Area of square 1 + Area of square 2 + Area of square 3

Area of a square = l^2

Where l is the length of the square

Area of a square 1 = 4^2

Area of a square = 16 square cm

Area of square 2 = 3^2

Area of square 2 = 9 square cm

Area of square 3 = 2^2

Area of square 3 = 4 square cm

Total area of the square = 16 + 9 + 4

The total area of the square = 29 square cm

Hence, the total square of the figure is 29 square cm

Part B

$\begin{gathered} \text{ To proof if the triangle is a right angled triangle} \\ \text{ We n}eed\text{ to appy Pythagora's theor}em \\ \text{Hypotenus}^2=perpendicular^2+base^2 \\ \text{Hypotenus = 4}cm \\ \text{Perpendicular =3cm} \\ \text{Base = 2cm} \\ 4^2=3^2+2^2 \\ 16\text{ = 9 + 4} \\ 16\text{ }\ne\text{ 13} \\ \text{ Since the hypotenus is not equal to the summation of the perpendicular and base} \\ \text{Hence, the triangle is a not right angled triangle} \end{gathered}$

6 0

1 year ago

A hose fills a tank at a rate of 20 gallons per minute what is the rate in liters per hour

klemol [59]

About 316 liters per hour

7 0

3 years ago

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