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Fiesta28 [93]
3 years ago
9

By how much is 21 greater than 13.969​

Mathematics
1 answer:
olasank [31]3 years ago
8 0
Answer: 7.031
21 is greater than 13.969 by 7.031

Explanation: 21 - 13.969 = 7.031
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The base of a triangular field is 22m. The area of the field is 550m2 . find the height​
Sergio [31]

Step-by-step explanation:

Area of triangular prism =1/2 ×base×height

550=1/2×22×h

h=550/11

h=50m

hope it helps.

6 0
3 years ago
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What is the range of the function y=\cos 2x ?
sattari [20]
All real numbers is the answer
7 0
4 years ago
The rectangle below has an area of 70 square meters.
nasty-shy [4]

Answer:

The side lengths are 10 by 7

Step-by-step explanation:

The area of a rectangle is

A = l*w

70 = (x - 11)(x - 8)

FOIL

70 = x^2 -8x-11x+88

Combine like terms

70 = x^2 -19x +88

Subtract 70 from each side

0 = x^2 -19x +88-70

0 = x^2 -19x+18

Factor

What number multiplies to 18 and adds to -19

-18*-1 =18

-18-1 = -19

0=(x-18)(x-1)

Using the zero product property

x-18=0   x-1=0

x=18   x=1

But x cannot x=1 because then the side lengths would be negative

x-18 = 10

x-11 = 7

The side lengths are 10 by 7

4 0
3 years ago
Graph the line with slope 1/2<br> passing through the point (-4,1).
dem82 [27]

Answer:

from (-4,1) the line will go up to (-2,2) then (0,3)

Step-by-step explanation:

the slope 1/<em>2</em> dictates that the line will go up by 1 unit for every <em>2</em> units, then we just plot said line from the point given (<em>-4</em>,1) where we go up y by 1 and we go left on <em>x</em> by <em>2</em>

image could not be provided at this time, tho the line will have a slope that is between horizontal and increasing (to the left) at roughly 30 degrees ish

5 0
3 years ago
Solve the system of equations by first multiplying 2x + y = 1 3x + 3y = 15 Write the solution as an ordered pair:_____
jasenka [17]

Multiply the equation 2x + y = 1 by 3 to obtain same coefficients of y.

\begin{gathered} (2x+y=1)\times3 \\ 3\cdot2x+3\cdot y=3\cdot1 \\ 6x+3y=3 \end{gathered}

Substract the equation 3x + 3y = 15 from 6x + 3y = 3 to eliminate the terms of y.

\begin{gathered} 6x+3y-(3x+3y)=3-15 \\ 3x=-12 \\ x=-\frac{12}{3} \\ =-4 \end{gathered}

Substitute -4 for x in the equation 2x + y = 1 to obtain the value of y.

\begin{gathered} 2\cdot(-4)+y=1 \\ -8+y=1 \\ y=1+8 \\ =9 \end{gathered}

So solution of equations is (-4,9).

8 0
2 years ago
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