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Ksju [112]
3 years ago
6

How do you work out the length of radius and diameter of these two circles?

Mathematics
1 answer:
bogdanovich [222]3 years ago
8 0
So for the first one what you did was wrong as in wrong formula.
Radius is 5cm as it is given and diameter is double the radius which is 10.
So r=5
And D=10.

For the second one the diameter is 16cm as it is given and radius is half the diameter,so half of 16 is 8cm right?
So r=8
And D=16
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What is the solution to the following system of equations?
sveticcg [70]
Y=x^2+10x+11
y=x^2+x-7
therefore,
x^2+10x+11=x^2+x-7
x^+10x+11-x^2-x+7=0
9x+18=0
x=-2
y=(-2)^2+10(-2)+11= -5
3 0
3 years ago
Please help I’m being timed!!! A country commits to decreasing spending for infrastructure in various ways at a rate of 30% per
Cerrena [4.2K]

Answer:

It would be the graph that has point (0,12) and is decreasing to the right.

6 0
2 years ago
Factor 48m + 42n to identify the equivalent expressions
Ksenya-84 [330]

The equivalent expressions are 2(24m + 21n) and 3(16m + 14n) and 6(8m + 7n)

<em><u>Solution:</u></em>

Given that, we have to factor the given expression

<em><u>Given expression is:</u></em>

48m + 42n

The equivalent expressions can be found by factoring out the common factors of 48 and 42

<em><u>Let us first find the factors of 48 and 42</u></em>

The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42

The factors of 48 are: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

Thus the common factors are: 1, 2, 3, 6

Let us factor out 2 from given expression

48m + 42n = 2(24m+21n)

Now factor out 3 from given expression

48m + 42n = 3(16m + 14n)

Now factor out 6 from given expression

48m+42n=6(8m + 7n)

Thus the equivalent expressions are 2(24m + 21n) and 3(16m + 14n) and 6(8m + 7n)

7 0
2 years ago
Deon bought 26 pounds of rice for $11 . how many pounds of rice did he get per dollar?
ivanzaharov [21]
For $11, he bought = 26 pounds
so, for 1, it would be: 26/11 = 2.36

In short, Your Answer would be 2.36

Hope this helps!
5 0
3 years ago
100×0.23 = <br> 101×0.23 = <br> 102×0.23 = <br> 103×0.23 =
zaharov [31]

Answer:

100×0.23=23

101×0.23=23.23

102×0.23=23.46

103×0.23=23.69

7 0
2 years ago
Read 2 more answers
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