All categories

2 years ago

The building on Daughtery road are even numbered from 12-136. How many buildings have an address with at least one 4?

Mathematics

1 answer:

IrinaVladis [17]2 years ago

3 0

Answer:

Total 22 buildings have at least one 4 in their address

Step-by-step explanation:

Number between 12 to 136 are as given below -

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

Total numbers having at least 1 four are

104

114

124

134

Total 22 buildings have at least one 4 in their address

You might be interested in

Is 2.55 a irrational, rational, integer, whole number or natural number?

satela [25.4K]

So, the first thing we need to know is what is what.

So, A natural number is a whole number

A whole number is an integer

and An integer is a rational number.

Now, since there is a terminating decimal (a decimal that does not go on forever) we know it is a rational number.

Since there is a decimal, it cannot be an integer, therefore

It is a rational number

4 0

2 years ago

Graph the function r(x) = -1/4 |x|

Free_Kalibri [48]

Here is your function graphed

8 0

2 years ago

HELP ON THIS PROBLEM!! Solve the following 0deg< x< 360deg: cos x= cos 2x

blsea [12.9K]

Answer:

$x=0^\circ,120^\circ,240^\circ,360^\circ$

Step-by-step explanation:

Use identities to set the equation up as a quadratic

$\cos x=\cos 2x;\:0^\circ \leq x \leq 360^\circ\\\\\cos x=2\cos^2 x-1\\\\0=2\cos^2 x-\cos x-1$

Make the substitution u=cos(x) and solve the quadratic

$0=2u^2-u-1\\\\0=(2u+1)(u-1)$

$\displaystyle 0=2u+1\\\\0=2\cos x+1\\\\-1=2\cos x\\\\-\frac{1}{2}=\cos x\\\\120^\circ,240^\circ=x$

$0=u-1\\\\0=\cos x-1\\\\1=\cos x\\\\0^\circ,360^\circ=x$

Hence, $x=0^\circ,120^\circ,240^\circ,360^\circ$

7 0

1 year ago

Discussion Prompt: A fair coin is tossed twice and the number of heads is recorded. Jose says the P(1 head) = 1/2, while Jeff st

NemiM [27]

Let H represent heads and T represent tails.

Writing HH means we get two heads and HT means we get heads first, then tails second, and so on.

We have these four possible outcomes when flipping two coins

Of those four outcomes, two of them have exactly one head show up (HT and TH). The probability of getting exactly one head is 2/4 = 1/2, so this is why Jose is correct.

8 0

2 years ago

What is the value of the expression below. ||3-7| - |-6+3||

alexdok [17]

Answer:

Step-by-step explanation:

$||3-7| - |-6+3||$

||-4|- |-3||

|4-3|

|1|

6 0

2 years ago