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4 years ago

Help....,................. .

Mathematics

1 answer:

alexandr402 [8]4 years ago

6 0

<span>the x is supposed to represent the amount of miles driven in that car and the numbers in the paranthesis are supposed to be the price of the car or rental cost</span>

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Plz answer correctly both questions if do will give brainliest!!!!

Marina86 [1]

54 square inches
Basically you just multiply

6 0

3 years ago

Read 2 more answers

Towers A and B are located 10 miles apart. A ranger spots a fire at a 42-degree angle from tower A. Another fire ranger spots th

steposvetlana [31]

Answer:

7.0 mi

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

Find the measure of angle C

Remember that the sum of the interior angles in any triangle must be equal to 180 degrees

$A+B+C=180^o$

substitute the given values

$42^o+64^o+C=180^o$

$C=180^o-106^o=74^o$

step 2

Find the measure of a

Applying the law of sines

$\frac{c}{sin(C)}=\frac{a}{sin(A)}$

substitute the given values

$\frac{10}{sin(74^o)}=\frac{a}{sin(42^o)}$

solve for a

$a=\frac{10}{sin(74^o)}sin(42^o)$

$a=7.0\ mi$

6 0

4 years ago

Read 2 more answers

What percent of 392 is 98

BARSIC [14]

It is 25%. Use the percent equation ( 98/392 = x/100). Cross multiply (98 * 100 = 9800 & 392 * x = 392x) You now divide ( 9800 / 392 = 25).

5 0

3 years ago

Read 2 more answers

Graph f(x) = x2 + 2x - 3, label the function’s x-intercepts, y-intercept and vertex with their coordinates. Also draw in and lab

Semenov [28]

<h2>Answer with explanation:</h2>

The given function : $f(x)=x^2+2x-3$

Using completing the squares, we have

$f(x)=x^2+2x+1-1-3$ [∵ $(x+1)^2=x^2+2x+1$ ]

$f(x)=(x+1)^2-4$ (1)

Comparing (1) to the standard vertex form $f(x)=(x-h)^2+k$ , the vertex of function is at (h,k)=(-1,-4)

For x-intercept, put f(x)=0 in (1), we get

$0=(x+1)^2-4\\\\\Rightarrow\ (x+1)^2=4$

Square root on both sides, we get

$x+1=\pm2\\\\x+1=-2\ or\ \ x+1=2\\\\=x=-3\ \ or\ x=1$

∴ x intercepts : x= (-3,0) and (1,0)

For y-intercept put x=0 in (1), we get

$f(1)=(1)^2-4=1-4=-3$

∴ y intercept : (0,-3)

Axis of symmetry : $\dfrac{-b}{2a}$

In $f(x)=x^2+2x-3$ , a=1 and b=2

Axis of symmetry= $\dfrac{-2}{2(1)}=-1$

5 0

3 years ago

SOMEONE PLEASE HELP IMMA CRY

VLD [36.1K]

Answer:

Step-by-step explanation:

you multiply by 180/pi

usually in my calculator i would always type 8(1/180) so i dont know why its saying this but u said u were gonna cry so i looked it up and it came up w this.

"To convert from radians to degrees, multiply the radians by 180°π radians ."

6 0

3 years ago