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2 years ago

Hello please help i’ll give brainliest

Mathematics

1 answer:

Natalka [10]2 years ago

7 0

Answer:

4. 80°

5. 11

6. 9

Step-by-step explanation:

4. 80 is the lowest number on the chart

5. add temperatures between 86 and 89

6. add temperatures between 86 and 90

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if julie ran 3.6 miles from home to the gym and then walked 0.7 miles to the store she then ran from the store home if her total

o-na [289]

So,

Home ---- gym = 3.6 mi.
gym ---- store = .7 mi.
store ----- home = x

3.6 + .7 + x = 7.2 mi.

Collect Like Terms

4.3 + x = 7.2

Subtract 4.3 from both sides
x = 2.9

The distance from the store to her home is 2.9 miles.

4 0

2 years ago

Which expression is equivalent to (x Superscript one-half Baseline y Superscript negative one-fourth Baseline z) Superscript neg

Darina [25.2K]

By using exponent properties, we will get the simplified expression:

$x^{-1}*y^{1/2}*z^2$

<h3>How to simplify the given expression?</h3>

Here we have the expression:

$(x^{1/2}*y^{-1/4}*z)^{-2}$

Remember the exponent properties:

$(a^n)^m = a^{n*m}$

And:

$(a*b)^n = (a^n)*(b^n)$

So using these two properties, we can rewrite:

$(x^{1/2})^{-2}*(y^{-1/4})^{-2}*(z)^{-2}\\\\(x^{-2*1/2})*(y^{-2*-1/4})*(z^{-2}})\\\\x^{-1}*y^{1/2}*z^2$

So we conclude that the completely simplified expression is:

$x^{-1}*y^{1/2}*z^2$

If you want to learn more about exponents:

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8 0

1 year ago

Lesson 5 Practice Problems

nasty-shy [4]

Answer:

Find out the how many pizzas are delivered to a customer who pays $80 .To proveAs It is not stated, but implied that all pizzas cost.

Step-by-step explanation:

brainliest please

8 0

1 year ago

Read 2 more answers

True or false An invalid statistical test measure may have questions that are misinterpreted.

Norma-Jean [14]

True. An invalid statistical test measure may have questions that are misinterpreted.

7 0

2 years ago

Read 2 more answers

Factor –7x3 21x2 3x – 9 by grouping. what is the resulting expression? (3 – 7x)(x2 – 3) (7x – 3)(3 x2) (3 – 7x2)(x – 3) (7x2 – 3

juin [17]

The factors of the expression are $\rm(3 - 7x^2)(x - 3)$

<h3>How to find factors in the expression?</h3>

First group the first two terms and the last two terms together respectively.

The factors of the expression are given by;

$\rm= -7x^3 + 21x^2 + 3x - 9\\\\=-7x^2(x - 3) + 3(x - 3)\\\\=(3 - 7x^2)(x - 3)$

Hence, the factors of the expression are $\rm \rm(3 - 7x^2)(x - 3)$ .

To know more about factors click the link given below.

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1 year ago