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grigory [225]
3 years ago
12

Turn the sentence into an expression please

Mathematics
1 answer:
sveticcg [70]3 years ago
3 0

Answer:

(x+20) + (x-9)

Step-by-step explanation:

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Round up 1.795 to 2 decimal places​
vfiekz [6]

Answer:

1.80

Step-by-step explanation:

Since we're rounding up to 2 decimal places we won't put the 5 in 1.795 in consideration, we'll just round up 79 which will give us 80, so we'll have 1.80. We're not rounding up to the nearest whole number or to one decimal place so the answer will remain as 1.80

7 0
3 years ago
If the value of third order determinant is 11. Then what is the value of the determinant formed by its cofactors.
nordsb [41]

Answer:

146.41

Step-by-step explanation:

third order determinant = determinant of 3×3 matrix A

given ∣A∣=11

det (cofactor matrix of A) =set (transpare of cofactor amtrix of A) (transpare does not change the det)

=det(adjacent of A)

{det (cofactor matrix of A)}  ^2  = {det (adjacent of A)} ^2

 

(Using for an n×n det (cofactor matrix of A)=det (A)^n−1 )

we get

det (cofactor matrix of A)^2  = {det(A)  ^3−1 }^2

 

=(11)^2×2  = 11^4

 =146.41

5 0
3 years ago
You walk 15 miles to a clothing store. Then you walk another 34 miles to a shoe store. How many miles have you walked in all?
SVEN [57.7K]

Answer: 49 Miles

Step-by-step explanation:

You would add the original 15 miles to the 34 to get 49 in total.

49 Miles is how much you've walked.

3 0
3 years ago
If sin θ = 7 over 25, use the Pythagorean Identity to find cos θ. cos θ = ± 17 over 24 cos θ = ± 17 over 25 cos θ = ± 24 over 25
elena-s [515]
\sin^2\theta+\cos^2\theta=1

\implies\cos^2\theta=1-\left(\dfrac7{25}\right)^2=\dfrac{576}{625}\implies\cos\theta=\pm\dfrac{24}{25}
6 0
3 years ago
Idk of this is a math question but anyways if I don’t do this assignment worth 100 pts. How much would it bring my grade down to
nordsb [41]

Answer:

76.42%

Step-by-step explanation:

To find the percent , we take the number of points earned over the total number of points possible

You have earned (43+509+96) =648

The total number of points possible (100+50+598+100) =848

The new percent if you did not do the assignment = 648/848=.764150943

You would have a 76.42%

4 0
4 years ago
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