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3 years ago

Only answer if you’re sure, will give Brainly :) thank you

Mathematics

2 answers:

Marizza181 [45]3 years ago

5 0

Answer:

x = √ − 7 h + 5

Step-by-step explanation:

h(-7)=x^2-5

x = √ − 7 h + 5

nadezda [96]3 years ago

4 0

The answer is 44 h(-7)= -7^2 -5 =49-5=44

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Two cyclists, 80 miles apart, start riding toward each other at the same time. One cycles 3 times as fast as the other. If they

vivado [14]

The speed of the faster cyclist will be 30 miles/hour.

Explanation

One cyclist is 3 times as fast as the other.

Lets assume that the speed of the slower cyclist is $x$ miles/hour.

So, the speed of the faster cyclist will be: $3x$ miles/hour.

They start riding toward each other at the same time and meet 2 hours later.

We know that, $Distance= speed*time$

So, the distance traveled by slower cyclist in 2 hours $= (x*2)miles= 2x$ miles and the distance traveled by faster cyclist $=(3x*2) miles = 6x$ miles.

Given that, they were 80 miles apart at the starting. So, the equation will be.....

$2x+6x=80\\ \\ 8x=80\\ \\ x=10$

So, the speed of the faster cyclist will be: (3×10)= 30 miles/hour.

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4 years ago

Read 2 more answers

X + y = -3 & 5x - 2y = -50 ELIMINATION

Karolina [17]

I gotchu luh bro....

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3 years ago

Sofia has an action figure collection. She keeps 15 of the action figures on her wall, which is 75% of her entire collection. Wh

ZanzabumX [31]

20

75=3/4
So 20/4=5
5 is 1/4 of 20 therefore 15 is 3/4 of 20 because 5x3=15.

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3 years ago

Read 2 more answers

Given z1 = -3

trasher [3.6K]

Answer:

See explanation

Step-by-step explanation:

The given complex number are:

$z_1=-3\sqrt{3}+3i$

and

$z_2=6\cos 150\degree+6i\sin 150\degree$

When we rewrite $z_1=-3\sqrt{3}+3i$ in complex form, we obtain;

$z_1=r(\cos \theta+i\sin \theta)$

where

$r=\sqrt{(-3\sqrt{3})^2+3^2 }=\sqrt{36}=6$

and

$\theta=tan^{-1}(\frac{y}{x})$

$\implies \theta=tan^{-1}(\frac{-3\sqrt{3}}{3})=150\degree$

Hence,

$z_1=6(\cos 150\degree+i\sin 150\degree)$

$z_1=6\cos 150\degree+6i\sin 150\degree$

Hence

$z_1=z_2$

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3 years ago

Graph f(x) = log5 (x-3).

Natali5045456 [20]

Step-by-step explanation:

We want to graph:

$f(x) =\log_{5}(x - 3)$

We first graph the parent function

$g(x) =\log_{5}(x)$

This parent function has x-intercept at (1,0) and it is asymptotic to the y-axis.

We then shift the graph of the parent function 3 units right, to obtain the graph of

$f(x) =\log_{5}(x - 3)$

The new x-intercept will be (4,0) and vertical asymptote will now be x=3.

See attachment.

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3 years ago