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3 years ago

B. Find, correct to two decimal places, thevalues of x for which 54 - 56+1) + 4 = 0.

Mathematics

1 answer:

Alja [10]3 years ago

7 0

Answer:

Step-by-step explanation:

54-56+1+4

-2+1+4

-1+4

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What is the value of m? 0.61m−1.51m=9 Enter your answer in the box. m =

sergij07 [2.7K]

Answer:

m = -10

Step-by-step explanation:

0.61m - 1.51m = 9

-0.90m = 9

mutiply both sides by -1.111111111111, twelve 1's after the decimal point

also to find what number u need to multiply to make -0.9m to m, divide 0.9 by 1 and that equals 1.111111111111 so yea a lot of ones haha

m = -10

4 0

3 years ago

Read 2 more answers

Make x the subject in the relation

tatyana61 [14]

Cant read your writing-

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2 years ago

Solve for a. a^2=-3a+88

Sergio [31]

Answer:

$a=8,-11$

Step-by-step explanation:

$a^2=-3a+88$

$a^2+3a=88$

$a^2+3a-88=0$

$x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

$x=\frac{-3\pm\sqrt{3^2-4(1)(-88)} }{2(1)}$

$x=\frac{-3\pm\sqrt{9+352} }{2}$

$x=\frac{-3\pm\sqrt{361} }{2}$

$x=\frac{-3\pm19 }{2}$

$x=-11$ and $x=8$

Therefore, the values of $a$ are 8 and -11.

5 0

2 years ago

What is the mixed number form of 33/8

goblinko [34]

HCF of 8 that will go as much as possible to 33

4*8=32 and denominator is 8

33-32=1 which is the numerator

Answer is :

4 1/8

4 0

3 years ago

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Calculate the area of quadrilateral ABCD. State the units of your answer.

cluponka [151]

Answer:

158.76 cm²

Step-by-step explanation:

Quadrilateral ABCD is composed of 2 right triangles

Construct the line BD, then

Δ ABD and Δ BCD are the 2 right triangles.

The area (A) of a triangle is calculated using

A = $\frac{1}{2}$ bh ( b is the base and h the perpendicular height )

Δ ABD with b = 18 and h = 7.5

A = $\frac{1}{2}$ × 18 × 7.5 = 9 × 7.5 = 67.5 cm²

Δ BCD with b = 15.6 and h = 11.7

A = $\frac{1}{2}$ × 15.6 × 11.7 = 7.8 × 11.7 = 91.26 cm²

Thus

area of ABCD = 67.5 + 91.26 = 158.76 cm²

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3 years ago

B. Find, correct to two decimal places, thevalues of x for which 54 - 56+1) + 4 = 0.​

B. Find, correct to two decimal places, thevalues of x for which 54 - 56+1) + 4 = 0.