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3 years ago

What number sentance can be used to find 42 divided by 7

Mathematics

1 answer:

olga nikolaevna [1]3 years ago

7 0

you can use the number sentence 42/7

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TanA= 2xy/(x^2+y^2), find sinA

valina [46]

Step-by-step explanation:

TanA = SinA/CosA

tanA = 2xy / (x² + y²),

Sin A = CosA * 2xy / (x² + y²)

7 0

2 years ago

Please help me i will give brainlist 25% of 40

elena55 [62]

Answer:

___ x 40 = 10

100

Consider 25 out of hundred since its a percent and the key word "cent" means 100. The keyword "of" means multiplication.

4 0

3 years ago

Select the correct answer. The temperature in Bloomington on Sunday was 32.6°C. On Monday, the temperature changed by -8.25°C. W

Likurg_2 [28]

Answer:24.35°C

Step-by-step explanation:

7 0

3 years ago

a television with a 5:4 screen shows an image with a ratio of 20:12 which creates a letter boxed image. What percent of the scre

Grace [21]

Answer: $75\%$

Step-by-step explanation:

You know that the ratio of the television's screen is $5:4$ . This ratio can be also written as the following fraction:

$\frac{5}{4}$

The television shows an image with a ratio of $20:12$ which can be also written as a fraction:

$\frac{20}{12}$

Set up the following proportion and solve for "x":

$\frac{20}{x}=\frac{5}{4}\\\\x=\frac{4*20}{5}\\\\x=16$

Now, in order to find the percent of the screen area occupied make the following division:

$\% occupied=\frac{12}{16}*100=75\%$

6 0

2 years ago

Solve and graph

oksano4ka [1.4K]

2r - 9 > -6
2r - 9 = -6
2r = 3
r = 3/2 = 1.5
r > 1.5

9x-5 < -41
9x-5 = -41
9x = -36
x = -36/9 = -4
x < -4

3x + 13 > 7
3x + 13 = 7
3x = -6
x = -6/3 = -2
x > -2

4x + 3 > -17
4x + 3 = -17
4x = -20
x = -20/4 = -5
x > -5

7x - 4 < 10
7x - 4 = 10
7x = 14
x = 14/7 = 2
x < 2

4 0

2 years ago