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xenn [34]
3 years ago
9

Which of the following expressions is correct?

Mathematics
2 answers:
ss7ja [257]3 years ago
5 0
A is the correct answer 
BaLLatris [955]3 years ago
4 0
(-21)=21 is the correct answer

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* WILL GIVE BRAINIEST*
k0ka [10]

Answer:

B: 280

Step-by-step explanation:

The regression line predicts that when x equals 5:

log_{10}(y) = 2.447

In order to find the value for y, one must simply apply the following logarithmic property:

if : log_{b}(a) = c

then: b^c = a

Applying it to this particular problem:

log_{10}(y) = 2.2447\\10^{2.447}= y\\y=280

Therefore, the regression line predicts y will equal 280 when x equals 5.

3 0
2 years ago
What is the HCF of 20 36 and 45??
tangare [24]

20=1×2×2×5=1×4×5

36=1×2×2×9=1×4×9

45=1×3×3×5=1×9×5[/tex]

  • HCF=1
6 0
3 years ago
Read 2 more answers
Brian is solving the equation x squared minus three-fourths x = 5. What value must be added to both sides of the equation to mak
Allushta [10]

Answer:

  StartFraction 9 Over 64 EndFraction

Step-by-step explanation:

He must add the square of half the x coefficient. That coefficient is 3/4, so half of it is 3/8 and the square of that is ...

  (3/8)^2 = 9/64

Brian mus add 9/64 to boths sides of the equation.

6 0
2 years ago
Read 2 more answers
How do you solve this equation? x/2 - x = x/4 + 6
fenix001 [56]

Answer:

x= - 8

Step-by-step explanation:

multiply both sides by 4 to get rid of the fractions. you should then get:

2x-4x=x+24

then get all the x terms to one side by subtracting by x on each side:

2x-4x-x=24

then simplify:

-3x=24

divide by -3 on each side:

x= - 8

4 0
3 years ago
The ratio of the radii of two spheres is 3:1. The volume of the larger sphere is 729 in3. What is the volume of the smaller sphe
Yanka [14]
27 in3 because you have to divide it

8 0
3 years ago
Read 2 more answers
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