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3 years ago

NEED HELP!!!

Mathematics

1 answer:

vlabodo [156]3 years ago

5 0

You're answer will be D.1

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What is the square root of 429

defon

20.7123152 thats the answer i looked it up

5 0

4 years ago

Read 2 more answers

DOES ANYONE KNOW THE ANSWER?????????

givi [52]

There's only information to answer question C.

We can only know that 32 marbles were chosen. (yellow and black)

Why?

To answer the first two questions (a and b), we need to know the total number of marbles, so, we can only answer the last question (c).

We know that 7/10 of the 20 yellow marbles were chosen.

So, calculating we have:

$\frac{7}{10}*20=14(yellow)$

Also, we know that 18 black marbles were chosen, so, the total of marbles chosen is equal to 32 (yellow marbles and black marbles)

$TotalMarbles=14(yellow)+18(black)=32marbles$

Have a nice day!

8 0

3 years ago

Solve for v. -8 +5v=-33

Dima020 [189]

Answer:

v = -5

Step-by-step explanation:

Step 1: Write out equation

-8 + 5v = -33

Step 2: Add 8 on both sides

-8 + 8 + 5v = -33 + 8

5v = -25

Step 3: Divide both sides by 5

5v/5 = -25/5

v = -5

3 0

3 years ago

Read 2 more answers

In an effort to make childrenâs toys safer and more tamperproof, toy packaging has become cumbersome for parents to remove in ma

Monica [59]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following :

Old design samples(n1) = 220

New design samples (n2) = 220

P1 = 81/220 = 0.368 ; P2 = 41/220 = 0.186

Null hypothesis : p1 - p2 ≥ 0.05

Alternative hypothesis : p1 - p2 < 0.05

Using the test statistic formula :

t = (P1 - P2) / √[P(1-P)(1/n1 + 1/n2)]

P = (81 + 41)/(220 + 220) = 122/440 = 0.277

1 - P = 0.723

t = (0.368 - 0.186) / (√(0.277(0.723)(1/220 + 1/220)))

t = 4.265

P value from z test at α = 0.05

P value = 0.00002

Test for significance at α = 0.01 ;

Test for significance at α = 0.1

Result is significant at both α levels, hence reject the Null.

5 0

4 years ago

<img src="https://tex.z-dn.net/?f=x-8%5C5%3D2%2F4" id="TexFormula1" title="x-8\5=2/4" alt="x-8\5=2/4" align="absmiddle" class="l

SVETLANKA909090 [29]

Answer:

x = $\frac{17}{2}$

Step-by-step explanation:

Decimal Form:

x = 8.5

Mixed Number Form:

x = $8 \frac{1}{2}$

4 0

4 years ago