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3 years ago

What is the product of (negative 6) (negative 7) (negative 1)?

Mathematics

2 answers:

arsen [322]3 years ago

5 0

Answer:

-42

Step-by-step explanation:

im taking a test

Anna35 [415]3 years ago

3 0

Answer:

-42

Step-by-step explanation:

-6*-7*-1=

a negative times a negative equals a positive. a positive times a negative equals a negative.

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1. There are 100 cm in 1 m and 1000 m in 1 km. You need a curtain for a window that is 156 cm wide.

DIA [1.3K]

Part 1)There are 100 cm in 1 m and 1000 m in 1 km. You need a curtain for a window that is 156 cm wide.

Part (a) If you wanted to convert the width to kilometers, what conversion factor should you use? Show your work.

we know that
100 cm------> 1 m
1000 m-----> 1 km

step 1
convert cm to m
156 cm---------> 156*(1/100)-----> 1.56 m

step 2
convert m to km
1.56 m------> 1.56*(1/1000)----> 0.00156 km

step 3
find the factor
156 cm---------> 156*(1/100)*(1/1000)---> 156*[1/100000]=0.00156 km

the answer part 1a) is
the conversion factor is (1/100000)

Part (b) What is the width in kilometers?

the answer Part 1b) is 1.56 km

Part 2) The driver of a taxi charges $2 every minute plus a pickup fee of $3.
Part (a) Write an expression for the total cost of a taxi ride.

let
x-----> quantity of minutes of a taxi ride
y----> total cost of a taxi ride

we know that
y=2x+3

the answer Part) 2a is
An expression for the total cost of a taxi ride is
y=2x+3

Part b) How much does an 18-min drive cost?
y=2x+3
for x=18 minutes
y=2*18+3-----> y=$39

the answer Part 2b) is
$39

Part 3) Draw a net for each of the following shapes:
(a) Rectangular prism
(b) Triangular prism
(c) Pyramid

see the attached figures

5 0

3 years ago

By air, the distance from city a to city b is 3008 miles less than the distance from city c to city

ella [17]

The distance from city C to city D is 4,814 miles.

5 0

3 years ago

Mhanifa can you please help me with this? I will mark brainliest

lesya692 [45]

Answer:

Let's assume we have a line segment AB and constructed a perpendicular bisector of this line segment.

Every point of the perpendicular bisector will be equidistant from both point A and point B.

To construct the isosceles triangle, we need to chose a point on the perpendicular bisector, name it C and draw line segments from C to point A and to point B.

We will get an isosceles triangle ABC.

5 0

3 years ago

Pls Help!!! worth 40 pts.

Sholpan [36]

Your function is $f(x) = x^3 - 7x - 6$ . The fundamental theorem of algebra says that there will be three roots, since the degree of the polynomial is 3. The problem provides two real roots, x = -2 and x = 3, so there must be one more.

The theorem also says that possible roots of the polynomial would be in this case, the factors of the constant (-6) over the factors of the coefficient of the term with the highest degree (1).

Factors of -6 are: 1, 2, 3, 6, -1, -2, -3, -6
Factors of 1 are: 1, -1

Possible rational roots are: 1, 2, 3, 6, -1, -2, -3, -6

I then use synthetic division to see which possible rational root is a real root by dividing $x^3 -7x -6$ by the possible rational roots, and I get a root when the remainder is 0. Remember to put the placeholder of 0 for x^2 when dividing:
-1} 1 0 -7 -6
-1 1 6
-----------------
1 -1 -6 0

When I divide by the possible rational root of -1, I get a remainder of 0, which means -1 is a root.

To check:
(x + 2)(x - 3)(x + 1)
= (x^2 - x - 6)(x + 1)
= x^3 - x^2 - 6x + x^2 - x - 6
= x^3 - 7x - 6

5 0

4 years ago

Help me please please please i need it

goldenfox [79]

Answer:

Step-by-step explanation:

Remark

If you take one radius whose length is r and start it at (0,0) on one end and (r,0) at the other, and sweep it around so the (r,0) hits every point on the circumference of the circle, the radius will go through 360°.

You have only gone through 120°. That's no problem. All you have to do now is add a fraction that adjusts for the 120°.

Formula

Arc length = fraction * 2*pi * r

2*pi * r is the circumference

Arc Length = 2* (120/360) * pi * r

Givens

r = 13

pi = 3.14

Solution

Arc Length = (120/360) * 2 * pi * 13

Arc Length = 27.21

Answer

Arc Length = 27.21

7 0

2 years ago