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4 years ago

(-4)(-4) use an exponent to rewrite the expression

1 answer:

5 0

For this case we have the following expression:
 $(-4)(-4) 
$
By properties of exponents we have:
Same basis, the exponents are added.
We have then:
$(-4)^{1+1}$
Then, rewriting the exponent we have:
$(-4)^{2}$
Therefore, an exponent to rewrite the expression is:
2
Answer:
$(-4)^{2}$
an exponent to rewrite the expression is 2.

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The perimeter of a field is 120 yards. what is the length and width?

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4 years ago

Angle α is in quadrant III, and angle β is in quadrant II. If sin α = –4∕5 and sin β = 1∕2, find cos (α + β).

Minchanka [31]

Answer:

Step-by-step explanation:

Given sin α = –4∕5 and sin β = 1∕2

To get α from sin α = –4∕5,

α = arcsin(-4/5)

α = arcsin (-0.8)

α = -53.13°

If angle α is in quadrant III, then α = 180+53.13 = 233.13° (sin is negative in the 3rd quadrant)

Similarly for sin β = 1∕2

β = arcsin(1/2)

β = arcsin(0.5)

β = 30°

Since β is in quadrant II, β = 180-30 = 150°

To find cos (α + β). where α = 233.13° and β = 30°

cos (α + β)= cos (233.13 + 150)

= cos 383.13°

cos (α + β) = 0.9196

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3 years ago

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larisa [96]

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Step-by-step explanation:

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3 years ago

Please help me to resolve this problem

san4es73 [151]

<h2>Answer- 3391.2mile</h2>

Step-by-step explanation:

Greetings !

Firstly, recall distance-speed equation

$speed = \frac{distance}{time}$

Given values:-

speed(v)=15.7mile/hr
time(t)=9days

required values:-

distance travelled(s)=?

solution /work-out

But, first change the time from day to hour

Thus, 9days=216hours

$distance = speed \times time$

plug in the given values and solve for the distance.

$distance = 15.7mi\hr \times 216hr \\ distance = 3391.2mile$

Hope it helps!

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2 years ago

Rewrite -4m(3n - 6p) using Distributive Property

zzz [600]

Answer:

$24pm - 12nm$

Step-by-step explanation:

$-12nm + 24pm = -4m(3n - 6p)$

** The above answer is written in reverse, which is the exact same result.

I am joyous to assist you anytime.

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4 years ago