2 years ago

I need help......,.................

Mathematics

2 answers:

Reptile [31]2 years ago

7 0

The answer is B

everyone should know this

Alexxandr [17]2 years ago

4 0

Answer:B

Step-by-step explanation:

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If y=3x + 2, find the value of y when x = -2

Varvara68 [4.7K]

Y=3x+2
=3(-2)+2
=-6+2
= -4

4 0

3 years ago

daniel uses a 20.00 bill to purchase an item that costs d dollars. Write an equation to represent the amount of chnage c that he

natulia [17]

Equation:

c = 20.00 - d

Solution:

c = 20.00 - 8.49

c = 11.51

5 0

2 years ago

Plzzz help me with this question look at picture

Nataly_w [17]

ANSWER

B. 81

EXPLANATION

The given expression is:

${3}^{ \frac{11}{5} } \div {3}^{ - \frac{9}{5} }$

Recall that:

${a}^{m} \div {a}^{n} = {a}^{m - n}$

We simplify the expression using the properties of exponents to obtain:

${3}^{ \frac{11}{5} } \div {3}^{ - \frac{9}{5} } = {3}^{ \frac{11}{5} - - \frac{9}{5} }$

We simplify the exponents to get;

${3}^{ \frac{11}{5} } \div {3}^{ - \frac{9}{5} } = {3}^{ \frac{11 + 9}{5}}$

${3}^{ \frac{11}{5} } \div {3}^{ - \frac{9}{5} } = {3}^{ \frac{20}{5}}$

${3}^{ \frac{11}{5} } \div {3}^{ - \frac{9}{5} } = {3}^{4}$

${3}^{ \frac{11}{5} } \div {3}^{ - \frac{9}{5} } = 81$

The correct answer is B. 81

8 0

3 years ago

What is the area base of a triangular prism is <br>25 1/3 in. Its length is 4 1/2 in.<br>

Mila [183]

Answer:

Step-by-step explanation:

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8 0

2 years ago

An icicle is in the shape of an inverted cone with a diameter of 14 mm and a height of 60 mm. How much-frozen water is in the ic

cupoosta [38]

Answer:

Amount of water = 3077.2 mm^3.

Step-by-step explanation:

The radius = 1/2 diameter = 1/2 * 14 = 7.

The amount of ice in the cone = it's volume.

The volume of the cone = 1/3 3.14 r^2 h

= 1/3 * 3.14 * 7^2 * 60

= 3077.2 mm^3.

7 0

3 years ago