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Natalija [7]
3 years ago
14

The difference of a number and 12 is 30.determin the number

Mathematics
2 answers:
Marina CMI [18]3 years ago
4 0
42. because 42-12=30
ElenaW [278]3 years ago
3 0
42 because 42-12=30 hope dis helped my guy
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Quadrilateral ABCD is dilated about the origin into quadrilateral EFGH
olga nikolaevna [1]

Answer:

2

Step-by-step explanation:

8 x 2 = 16

4 x 2 = 8

5 0
3 years ago
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If you want to buy an item in a store that costs $25 an is on sale for 10% off
kumpel [21]

Answer:

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Olin [163]

Answer:

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Step-by-step explanation:

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both fractions have the same denominator so they keep it

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3 years ago
Solve the equation. x2 18x 81 = 25<br> a. 14, 4<br> b. –4, –14<br> c. 14, –14<br> d. –4, 4
Snowcat [4.5K]

Answer:

The answer is the option B

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Step-by-step explanation:

we know that

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x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^{2}+18x+81=25  

x^{2}+18x+56=0  

so

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substitute in the formula

x=\frac{-18(+/-)\sqrt{18^{2}-4(1)(56)}} {2(1)}

x=\frac{-18(+/-)\sqrt{100}} {2}

x=\frac{-18(+/-)10} {2}

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7 0
3 years ago
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kolezko [41]

Answer:

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Step-by-step explanation:

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5 0
2 years ago
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