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3 years ago

Help ASAP Please. .

Mathematics

2 answers:

Gwar [14]3 years ago

6 0

${5}^{4} \times {5}^{8} = {5}^{4 + 8} = {5}^{12}$

Crazy boy [7]3 years ago

4 0

The answer is c you multiply the base (5)(5)=25 and add the exponents 4+8=12 so the answer is 25^12

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Time varies inversely with speed if the distance is constant. It takes James 4 hours to get to his destination when he travels a

NikAS [45]

Answer:

Step-by-step explanation:

Time varies inversely with speed if the distance is constant. This means that if speed increases, the time it will take to cover the same distance will reduce

t = k/s

Where t = time

k = constant of inverse proportionality

s = speed

It takes James 4 hours to get to his destination when he travels at 65 miles per hour

4 = k/65

k = 65×4 = 260

t = 260/s

If he drove 15 miles/ hour faster, the new speed is 65 + 15 = 80miles/hour.

The time it will take him is

t = 260/s

t = 260/80 = 3.25 hours

The amount of time he would save is

4 hours - 3.25 hours = 0.75 hours

Converting 0.75 hours to minutes, we multiply by 60

Amount if time saved in minutes = 0.75×60 = 45 minutes

7 0

3 years ago

What is the equation, in point-slope form, for a line that goes through(8,

LUCKY_DIMON [66]

Answer:

$\boxed{y-4=-\frac{5}{6}(x-8)}$

Step-by-step explanation:

Point slope form is: $y-y_1=m(x-x_1)$

$(x_1,y_1) - Coordinate\\ m- Slope$

We are given the slope of $-\frac{5}{6}$ and the point of (8,4).

Replace 'm' with -5/6, 'x1' with 8, and 'y1' with 4.

$y-y_1=m(x-x_1)\rightarrow \boxed{y-4=-\frac{5}{6}(x-8)}$

I do not see any options that match this, but the boxed equation should the correct answer.

8 0

3 years ago

Please Help!! 10 Points!! brainliest answer

MaRussiya [10]

Answer:

The answer is d because they are similar

Step-by-step explanation:

5 0

3 years ago

How do you add vectors? Add the vector <3,4> to the vector that goes 7 units at an angle of 2π/3.

telo118 [61]

The sum of two vectors is (- 0.5, 10.1)

<u>Explanation:</u>

To add two vectors, add the corresponding components.

Let u =⟨u1,u2⟩ and v =⟨v1,v2⟩ be two vectors.

Then, the sum of u and v is the vector

u +v =⟨u1+v1, u2+v2⟩

(b)

Two vectors = ( 3, 4 )

angle 2π/3 = 120°

In x axis, the vector is = 7 cos 120°

$= 7 X -\frac{1}{2} \\\\=- \frac{7}{2}$

In y axis, the vector is = 7 sin 120°

= 7 X 0.866

= 6.062

The second vectors are ( -3.5, 6.062)

Sum of two vectors = [( 3 + (-3.5) ), (4 + 6.062)]

= (- 0.5, 10.1)

8 0

3 years ago

What is the order of this matrix.

kvasek [131]

Answer:

the order of the matrix is 5 x 3

5 rows and 3 columns

3 0

3 years ago