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Flauer [41]
2 years ago
13

X^2 -10x = 8 solve show work

Mathematics
2 answers:
likoan [24]2 years ago
8 0

Answer:

Step-by-step explanation:

X^2-10x-8=0

Solve simultaneously

noname [10]2 years ago
8 0
I dont know if this is correct, it's been a while

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Solve for -2<-3-3x<0
gregori [183]

-3 from all ends to get 1<-3x<3 then divide by -3 on all ends to get -1/3>x>-1 you flip the sign because of the negative,


8 0
3 years ago
A hyena can run one over four mile in 22.5 seconds. Which of the following correctly shows this rate as miles per hour?
KiRa [710]

Answer:

a

Step-by-step explanation:

8 0
2 years ago
Show that the equation 2x + 3 cos x + e ^ x = 0 has a root on the interval [- 1, 0]
ExtremeBDS [4]

If <em>x</em> = -1, you have

2(-1) + 3 cos(-1) + <em>e</em> ⁻¹ ≈ -0.0112136 < 0

and if <em>x</em> = 0, you have

2(0) + 3 cos(0) + <em>e</em> ⁰ = 4 > 0

The function <em>f(x)</em> = 2<em>x</em> + 3 cos(<em>x</em>) + <em>eˣ</em> is continuous over the real numbers, so the intermediate value theorem applies, and it says that there is some -1 < <em>c</em> < 0 such that <em>f(c)</em> = 0.

5 0
3 years ago
HELP!!!
Jobisdone [24]

Answer:

16 is the number of quarters and 14 is the number of dimes

Step-by-step explanation:

we know that

1\ dime=\$0.10

1\ quarter=\$0.25

Let

x-----> the number of dimes

y------> the number of quarters

we know that

0.10x+0.25y=5.40 -----> equation A

x+y=30 ----Isolate the variable y

y=30-x -----> equation B

Substitute equation B in equation A

0.10x+0.25(30-x)=5.40      

0.10x+7.5-0.25x=5.40

0.25x-0.10x=7.5-5.40

0.15x=2.1

x=14\ dimes

Find the value of y

y=30-x

y=30-14=16\ quarters

therefore

16 is the number of quarters and 14 is the number of dimes

8 0
3 years ago
Read 2 more answers
Theresa is 14 years younger than her brother. Together, their total age in years is 35.
solniwko [45]
Let :
T = Theresa age
H = her brother
We know :
T = H - 14
T + H = 35
Substitute T
H -14 + H = 35
2H - 14 = 35
2H = 49
H = 49/2 = 24.5
Since we know H = 24.5 we then can substitute it to either equation.
T = H - 14
T = 24.5 - 14
T = 10.5
Theresa is 10.5 years old
Her brother is 24.5 years old

4 0
3 years ago
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