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2 years ago

Use the following equation y = 3x + 15 to solve for y when x = 3.

Mathematics

2 answers:

Ede4ka [16]2 years ago

5 0

Y = 3(3) +15

y = 9 + 15

y= 24

Digiron [165]2 years ago

5 0

3 times 3 equals 9 then you add it with 15, your answer is 24, or b. Have a good rest of your day !

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What is the approximate value of log6 1944 if log6(9)is approximately 1.2263

il63 [147K]

$log_{6}(1944) = log_{6}(324 \times 6) \\ log_{6}(18 {}^{2} \times 6) = log_{6}((3 \times 6) {}^{2} \times 6) \\ log_{6}(3 {}^{2} \times 6 {}^{2} \times 6) \\ \\ log_{6}(9) + log_{6}(6 {}^{3} ) = 1.2263 + 3 \\ 4.2263$

5 0

2 years ago

Need help with this math question

Hoochie [10]

Answer:

x = 3.1 ft

Step-by-step explanation:

Use Pythagoras' Theorem to find the base of the triangle. The base of the triangle is half of 'x'. Let's call the base 'y' for now.

To find 'y' we must use this formula,

$y^{2} = c^{2} -b^{2}$

'c' is the hypotenuse, the longer side, and 'b' is the other short side.

Sub in the numbers for 'c' and 'b',

$y^{2} = 2.1^{2} -1.4^{2}$

= 2.45

Square root both sides to get 'y' by itself,

y = 1.5652.....

Remember that 'y' is half of x? Simply multiply 'y' by 2 to get an answer for 'x',

x = 1.5652.... x 2

= 3.1 ft (1 d.p. nearest tenth)

Hope this helped!!

4 0

3 years ago

375 = 3 x 5 x 5 x 5 =

Fofino [41]

375=3×5×5×5 = 15 × 25

8 0

3 years ago

Multiply 3i(−1 + 2i). What is the simplified version written in standard form, a + bi, where a and b are real numbers?

Sholpan [36]

3i (- 1 + 2i) Remove the brackets.
3i (-1) + (2i)(3i) Look at the first set of brackets around the -1
-3i + 6i^2 But i^2 = - 1[ I hope that's the way you are using it]
-3i - 6 or -6 - 3i or -3(2 - i) <<<<< answer

4 0

3 years ago

Length of a rectangle is four times its width if the area of the rectangle is 196 yards find its perimeter

jeka94

Answer:

22 yd

Step-by-step explanation:

Length is four times its width -----> L=4W

area of rectangle is 196 -----> 196=LW

Plug L=4W into 196=LW giving you 196=(4W)W

Simplify a bit 196=4W^2

Divide both sides by 4: 196/4=W^2

Simplify a bit: 49=W^2

Square root both sides: 7 or -7=W

The width is 7 yd

The length is 4(7)=28 yd

Now its final part is for you to find the perimeter of this rectangle. The rectangle is a 7 yd by 4 yd rectangle.

Double both then add.. 14+8=22 yd

6 0

2 years ago

Read 2 more answers