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3 years ago

Solve for x please!

Mathematics

1 answer:

Elina [12.6K]3 years ago

3 0

x^2 = 81/100

Let's take the square root of each side

x = 0.9 and -0.9

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Owen Munney went to the store for his barbeque. He bought 3

bixtya [17]

Answer:

answer c

Step-by-step explanation:

A because the chicken is worth more than the ground beef which gets rid of most of the answers so your left with A and C its not C because A doesnt equal the number of money spunt

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2 years ago

I need help on this problem

Alex787 [66]

x= temperature increase

1) 74+x

2)74+13=87

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3 years ago

Help again...its for math offering 15 points

Anettt [7]

Answer:

$\tan \dfrac{\theta}2 = \dfrac{1}2$

Step by step Explanation:

$\sin \theta = \dfrac{\text{Perpendicular} }{\text{Hypotenuse}} = \dfrac{12}{15}\\\\\\\cos \theta = \dfrac{\text{Base}}{\text{Hypotenuse}}= \dfrac{9}{15}\\\\\text{Now,}\\\\\tan \dfrac{\theta}2 = \dfrac{\sin \tfrac{\theta}2}{\cos \tfrac{\theta}2}\\\\\\~~~~~~~~=\dfrac{2\cos \tfrac{\theta}2 \sin \tfrac{\theta}2 }{2\cos^2 \tfrac{\theta}2}~~~~~~;\left[\text{Multiply by}~ 2\cos\tfrac{\theta}2 \right]$

$=\dfrac{\sin \theta}{1+ \cos \theta}~~~~~~~~~~~~;[2 \sin x \cos x = \sin 2x ~ \text{and}~ 2\cos^2 x =1+\cos 2x]\\\\\\=\dfrac{\tfrac{12}{15}}{1+ \tfrac{9}{15}}\\\\\\=\dfrac{\tfrac{12}{15}}{\tfrac{24}{15}}\\\\\\=\dfrac{12}{15}\times \dfrac{15}{24}\\\\\\=\dfrac{12}{24}\\\\\\=\dfrac{1}2$

4 0

2 years ago

I will give 70 -0ints

kaheart [24]

Answer:

See below ~

Step-by-step explanation:

(a) Mean of the data

2.4 + 1.6 + 3.2 + 0.3 + 1.5 / 5
9/5
1.8

(b) New mean after each data point increased by 10

12.4 + 11.6 + 13.2 + 10.3 + 11.5 / 5
59/5
11.8

(c) New mean after each data point doubled [from (b)]

24.8 + 23.2 + 26.4 + 20.6 + 23 / 5
118/5
23.6

8 0

2 years ago

Read 2 more answers

Represent the set of numbers as decimals on the number line {5 3/10, 5 1/10, 5 and if you answer more than needed thank you

Alina [70]

Answer:

(0.53 > 0.51) both less than 1 while 5 is greater than both

Step-by-step explanation:

$\frac{53}{10} = .53, \frac{51}{10} = .51.$ and 5

the number line has two sides, with the left side for negative numbers while the right side is for positive numbers.

-5 -4 -3 -2 -1 -.53 -.51 0 .51 .53 1 2 3 4 5

By studying the number line above all decimal numbers greater than 0 but less than 1 are from 0, .1, .2,.........,.98, .99, 1.00 which is also the same as 1 because all numbers greater than 1 has an invisible point at its right side like 2., 3. which also means 2, 3 while negative number are all less than 0

7 0

3 years ago