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nydimaria [60]
3 years ago
10

HELP PLSSSSSSSSSSSSS

Mathematics
2 answers:
Free_Kalibri [48]3 years ago
8 0

Answer:

14 miles per hour

Step-by-step explanation:

49/3.5= 14

Hope this helps!  

pls mark brainliest if correct

Kisachek [45]3 years ago
3 0

Answer:

14 miles per hour because to find the speed, use the formula speed = distance / time. 49 / 3.5 = 14.

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Which system of inequalities has a line as a solution?
erastova [34]

linear inequality

The solution of a linear inequality is the ordered pair that is a solution to all inequalities in the system and the graph of the linear inequality is the graph of all solutions of the system

7 0
3 years ago
Determine whether is a right triangle for the given vertices. Explain. Q(7, –10), R(–3, 0), S(9, –8)
andriy [413]

Answer:

Yes, It is a right triangle for the given vertices.

Step-by-step explanation:

Given:

Q(7, –10),

R(–3, 0),

S(9, –8)  

To Find:

determine whether is a rig ht triangle for the given vertices = ?

Solution:

QR=\sqrt{(-3-7)^2+(0-(-10))^2}

QR=\sqrt{(-10)^2+(10)^2}

QR=\sqrt{100+100}

QR=\sqrt{200}--------------------------(1)

QR=14.142136

RS=\sqrt{(9-(-3))^2+(-8-0)^2}

RS=\sqrt{(12)^2+(-8)^2}

RS=\sqrt{144+64}

RS=\sqrt{208}---------------------------(2)

RS=14.422205

QS=\sqrt{(7-9)^2+(-10-(-8))^2}

QS=\sqrt{(-2)^2+(-2)^2}

QS=\sqrt{4+4}

QS=\sqrt{8}-------------------------------------(3)

QS=2.828427

According to Pythagorean Theorem,

RS^2 = QR^ +QS^2

Substituting the values,

(\sqrt{208})^2 = (\sqrt{200})^2 +(\sqrt{8})^2

208 = 200 +8

208 = 208

Pythagorean theorem is satisfied. Hence it is a right triangle.

8 0
3 years ago
Without using (10), show directly that (10.6^-1)^8=17.6^-8
blagie [28]
We are given the expression:

(17.6^-1)^8 = 17.6 ^ -8

This means that the two terms on each side are equal. We are asked to show how this is possible. 

First, use the rule of exponents. If a term raised to the power of a number x^n and is further raised to the power m: (x^n)^m, to simplify the expression, multiply n and m and this will be your end exponent = x^nm. 

We can apply this rule here:

17.6^-1 ^ 8

-1 * 8 = -8

then, retain the base and replace the exponent with the product nm:

17.6 ^-8. This proves that the left term is equal to the right term. <span />
3 0
3 years ago
a copy machine makes 60 copies per minute. a second copy makes 80 copies per minutes. the second machine starts making copies 2
wel
8minutes-2minutes=6minutes
6×80 copies = 480 copies
8 0
3 years ago
Y^-7/y^-13 Please explain for brainly =DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
Elden [556K]
The answer is y^6 iugfhiiiyffcvjjkufdfvjkkuu
7 0
3 years ago
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