Susan did a puzzle in 5 minutes and 55 seconds. Jamal did the same puzzle in 11 minutes and 42 seconds. Susan says, ‘I did the puzzle in less than half the time Jamal did the puzzle. Is Susan right?

Answer:

The boat travels (300.4 km / 11 hours) which is 27.30909091 kilometers per hour,  So it would take 240 / 27.30909091 hours or 8.78828229 hours.  (Which rounds off to 8.79 hours)

Step-by-step explanation:

Answer:

Step-by-step explanation:

Opposite angles of a rhombus are congruent, so [tex]6x+8=86 \longrightarrow x=13[/tex]

Also, adjacent angles of a rhombus are supplementary, so [tex]86+5z+4=86+7y+3=180 \longrightarrow y=13, z=18[/tex]

Answer:

[tex]f^{-1} (x)=-\frac{x}{2} +\frac{5}{2}[/tex]

Step-by-step explanation:

To find the inverse, interchange the variables and solve for y.

Replace x and y,  to find inverse function f , and compute the resulting equation for x.

there will be more than one inverse if the elementary function is not one-to-one.

So, exchange the variable: [tex]y=5-2x[/tex] becomes [tex]x=5-2y[/tex]

Now, solve the equation: [tex]x=5-2y[/tex] for y

[tex]y=\frac{5}{2} -\frac{x}{2}[/tex]

[tex]6x+4y=-5\implies 4y=-6x-5\implies y=\cfrac{-6x-5}{4} \\\\\\ y=-\cfrac{6x}{4}-\cfrac{5}{4}\implies y=\stackrel{\stackrel{m}{\downarrow }}{-\cfrac{3}{2}} x-\cfrac{5}{4}\qquad \impliedby \qquad \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}[/tex]

[tex]\stackrel{~\hspace{5em}\textit{perpendicular lines have \underline{negative reciprocal} slopes}~\hspace{5em}} {\stackrel{slope}{-\cfrac{3}{2}} ~\hfill \stackrel{reciprocal}{-\cfrac{2}{3}} ~\hfill \stackrel{negative~reciprocal}{-\left( -\cfrac{2}{3} \right)\implies \cfrac{2}{3}}} \\\\[-0.35em] ~\dotfill\\\\ \textit{and a \underline{parallel line} to this one will also have a slope of }-\cfrac{3}{2}[/tex]

Answer: He needs $16.50

Step-by-step explanation:

5.50*3 = 16.50

Answer:

0.42484

Step-by-step explanation:

Answer:

35°

Step-by-step explanation:

Answer:

72

Step By Step Explanation:

Answer

17-8= 9

Explanation

sana tama yan ang sagot ko

Using it's concept, it is found that the mean of the data-set is of [tex]\frac{3}{4}[/tex].

The mean of a data-set is given by the sum of all observations in the data-set divided by the number of observations.

In this problem, the 4 observations are given by:

[tex]\left{\frac{1}{2}, \frac{1}{3}, \frac{2}{3}, 1\frac{1}{2} = 1 + \frac{1}{2} = \frac{3}{2}\right}[/tex]

Hence, the mean is given as follows:

[tex]M = \frac{\frac{1}{2} + \frac{1}{3} + \frac{2}{3} + \frac{3}{2}}{4} = \frac{\frac{3 + 2 + 4 + 9}{6}}{4} = \frac{18}{24} = \frac{3}{4}[/tex]

The mean of the data-set is of [tex]\frac{3}{4}[/tex].

More can be learned about the mean of a data-set at https://brainly.com/question/24628525

Answer:

Last one

Step-by-step explanation:

Simplify the inequality

2x + 3 > -9

Subtract 3

2x > -12

Divide by 2

x > -6

The last one shows x > -6 so it's the correct answer.

Answer:

p = 3/2 ; p = 2/3

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

You start with the rectangle. The formula is l×w.

10× 3=30

You move on to the triangles.

the formula is 1/2bh.

3×4=12

12/2=6

you add all of the values together

30+6+6=42 square feet

[tex]\qquad \qquad\huge \underline{\boxed{\sf Answer}}[/tex]

Perimeter of a triangle = sum of measures of each side ;

[tex] \qquad \rightarrow \sf p = 9 \: ft + 8y + 14 \: ft[/tex]

[tex] \qquad \rightarrow \sf p =23 \: ft + 8y[/tex]

Answer:

so i dont know the answer but i know that if u are determining the surface are then u should multiply two times and then divide once

Step-by-step explanation:

so 10 times 8 times 8 =640

~emmitheblackcat~

The surface area of the pyramid will be 224 square millimeters. The graph is labeled below.

The quantity area demonstrates the amount of a sector on a planar or hemispherical cup. Surface area refers to the area of an open surface or the border of a multi-object, whereas the area of a plane region or plane field refers to the area of a form or planar material.

The surface area of the pyramid is given as,

A = 4 (Area of triangle) + Base area

A = 4 x (1/2 x 10 x 8) + 8 x 8

A = 160 + 64

A = 224 square millimeters

The surface area of the pyramid will be 224 square millimeters. The graph is labeled below.

More about the area link is given below.

https://brainly.com/question/27683633

#SPJ2

Step-by-step explanation:

length × breadth = x² + 5x - 36

let's find, what expression was multiplied by what expression to give that result.

first we see, we have a pure x² term.

so, both start with (x + ...) or (x - ...).

then we see the last (constant) term -36.

so, we have a

(x + a)(x - b)

situation.

36 is the product of

6×6

9×4

12×3

18×2

the term +5x tells us that the difference between a and b must be 5. and a as the positive number must be bigger to give us the "+" (the multiplication contains "... + ax - bx ...").

and that means a = +9, b = -4

so, the original area calculation was

(x + 9)(x - 4) = x² + 5x - 36

when we decrease both factors by 2, we get

(x + 9 - 2)(x - 4 - 2) = (x + 7)(x - 6) = x² + x - 42

that is the new area of the rectangle.

Answer:

Y = city C - city D = 2.24 ft

2.24 ft / (1.6 ft / 250 mi) = 350 mi  distance between C and D

Note: 250 mi / 1.6 ft = 156.25 mi / ft

156.25 mi / ft * 2.24 ft = 350 mi

Answer:

32.6ft

Step-by-step explanation:

θ = 25°

[tex]\theta=arccos(\frac{100}{\sqrt{h^2+28h+10196}})\\\\\\\\frac{100}{\sqrt{h^2+28h+10196}}=\cos{\theta}\\\\h^2+28h+10196=(\frac{100}{\cos{25}})^2 = 12174\\\\h^2+28h - 1978=0\\\\h = 32.6[/tex]

Answer:

10

Step-by-step explanation:

Distance is always positive

|-10-0|=10

Mark me brainliest!!

Answer:

10! if you can make me brainiest id be happy:)!

Step-by-step explanation:

Answer:

3c

Step-by-step explanation:

3c im pretty sure. Since it is 3 times classic. classic is c. so rock must be R. so R=C3.

Answer:

470

Step-by-step explanation:

6% of 500 is 30 minus 500 u 470

Answer:

7^12= 13841287201

3.5^9= 78815.6386719

Divide: 13841287201/78815.6386719= 175616

7^12 is 175616 times greater than 3.5^9

Answer:

6x - 4

Step-by-step explanation:

14x + 5y - 8x - 9y

Simplify by combining like terms:

14x - 8x + 5y - 9y

= 6x + 5y - 9y

= 6x - 4

hope this helps!! p.s. i really need brainliest :)

[tex] the \: slope \: is \: \frac{15}{4} \: or \: 3.75 \\ \\[/tex]

[tex]using \: the \: slope \: fourmula \: = \\ \\ m = \frac{y {}^{2} }{x {}^{2} } - \frac{y {}^{1} }{x {}^{1} } \\ \\ plugging \: in \: our \: points \: = \\ \\ m = \frac{5}{ - 1} - \frac{ - 10}{ - 5} \\ \\ = \frac{5}{ - 1} + \frac{10}{5} \\ \\ [/tex]

[tex] = \frac{15}{4} \\ \\ = 3.75[/tex]

Answer with Step-by-step explanation:

you basically have to prove similarity, then use that to prove the two angles CDE & DAB are equal. You can prove similarity with AA, SSS, or SAS.

Step-by-step explanation:

Make 3x+2y=7 to slope intercept form. y = mx + b

So subtract 3x from both sides to get 2y= -3x + 7

Then divide by 2 on both sides to get y = -3x/2 + 7/2

The slope is -3/2 and the y-intercept is 7/2

Answer:

Step-by-step explanation:

m = -4 ; (x₁ , y₁) = (2, -7)

Point slope form: y - y₁ = m(x - x₁)

y - [-7] = (-4)(x - 2)

y + 7  =(-4)(x - 2)

Answer:

0<-4

Step-by-step explanation:

0 is greater than -4 (-4 + 4 = 0)

Answer:

1. 0 is less than -4 is incorrect, so you should pick that one.

Step-by-step explanation:

A whole number is always greater than a negative number, so in this case 0 is actually more than -4.

Hope this helps!