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Xelga [282]
3 years ago
5

Solve the problem. Express your answer to the correct number of significant figures. 6. 221 × 7. 11 − 13. 7 =.

Mathematics
1 answer:
Tresset [83]3 years ago
7 0

Answer:

30.5

Step-by-step explanation:

hope this helps mark me brainliest:)

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Gabe has 60 coins consisting of quarters and dimes. The combined value of the coins is $9.45. Find how many quarters and dimes G
Ugo [173]
We could say that dimes = x and quarters = 60 -x

Then we use the value of the coins 

10(x) + 25(60-x) = 945

I did 945 because I am doing this in cents not dollars but the answer would still work because it is asking for the amount of coins.

10x + 1500 - 25x = 945

-15x = -555

x = 37 

Dimes = x = 37
Quarters = 60 - x = 60 -37 = 23
6 0
3 years ago
BRAINLIEST + 10 POINTS IF CORRECT PLEASE JUST HELP
Verdich [7]

Answer:

c

Step-by-step explanation:

the probability isn't unavailable so it's not A. 0

and it isn't less than 0 because it is still "may occur"

and it is not one because it is still "unlikely"

so its C. close to 0

5 0
3 years ago
How to factorise and group the following p-q-x(q-p)
Naily [24]

Answer:

(p-q)(1+x)

Step-by-step explanation:

p-q-x(q-p)

p-q-xq+xp

p+xp-q-xq

p(1+x)-q(1+x)

(p-q)(1+x)

8 0
3 years ago
What is the perimeter of a square whose diagonal is 13.010
miskamm [114]

The perimeter would be ≈ 36.797836892947.

Rounded would be about 37, or 36.8.

Hope this helps!!!!

P=4a

d\sqrt{2a}

Solving for P:

P=2\sqrt{2d} =2*\sqrt{2*13.01}≈36.79784

Hope this helps!!

8 0
4 years ago
In a two-way analysis of variance, a main effect is defined as: Select one: a. the mean differences among the levels of one fact
Irina-Kira [14]

Answer:

a. the mean differences among the levels of one factor

Step-by-step explanation:

In statistics, a two-way analysis of variance (ANOVA), a main effect is defined as the mean differences among the levels of one factor.

The aim of a two-way analysis of variance (ANOVA) is to give the relationship or identify if there is an interaction between the two independent variables on the dependent variable.

3 0
3 years ago
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