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3 years ago

HELP MEEEEEEEEEEEEEEEEEE!!!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

deff fn [24]3 years ago

8 0

Answer:

Step-by-step explanation:

Aliun [14]3 years ago

3 0

5. Line e and line c
6. Line a and line d

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1 in 3 babies born last year are expected to live to 100years old

kolbaska11 [484]

Divide 720,000 by 3.
Your answer is 240,000.

3 0

3 years ago

NEED HELP ASAP

KengaRu [80]

Answer:

Part 1) Triangle GHI, JKL

Part 2) $(40*15)and(8*3)$ , $(18*6)and(4.5*1.5)$

Step-by-step explanation:

we know that

If two figures are similar

then

the ratio of their corresponding sides are equal and is called the scale factor

Part 1)

case a) triangle GHI

If ABC and GHI are similar

then

$\frac{4}{24}=\frac{3}{7}=\frac{5}{25}$

but

$0.17 \neq 0.43 \neq \ 0.20$

therefore

Triangle GHI is not similar to triangle ABC

case b) triangle DEF

If ABC and DEF are similar

then

$\frac{4}{44}=\frac{3}{33}=\frac{5}{55}$

$0.09=0.09=0.09$

therefore

Triangle DEF is similar to triangle ABC

case c) triangle MNO

If ABC and MNO are similar

then

$\frac{4}{10}=\frac{3}{7.5}=\frac{5}{12.5}$

$0.4=0.4=0.4$

therefore

Triangle MNO is similar to triangle ABC

case d) triangle JKL

If ABC and JKL are similar

then

$\frac{4}{21}=\frac{3}{20}=\frac{5}{29}$

$0.19 \neq 0.15 \neq 0.17$

therefore

Triangle JKL is not similar to triangle ABC

Part 2)

case a) If the rectangles are similar, then

$\frac{40}{8}=\frac{15}{3}$

$5=5$

therefore

the rectangles are similar

case b) If the rectangles are similar, then

$\frac{18}{4.5}=\frac{6}{1.5}$

$4=4$

therefore

the rectangles are similar

case c) If the rectangles are similar, then

$\frac{1,225}{3.5}=\frac{144}{1.2}$

$350\neq120$

therefore

the rectangles are not similar

case d) If the rectangles are similar, then

$\frac{13}{5.2}=\frac{5}{2.5}$

$2.5\neq 2$

therefore

the rectangles are not similar

3 0

4 years ago

Alex runs up a staircase with n steps, and can hop either 1, 2, or 3 steps at a time. Count how many possible ways the child can

MArishka [77]

Answer:

There are 4 possible ways

Step-by-step explanation:

Data provided in the question:

Alex can hop in 1 steps, 2 steps, or 3 steps at a time.

From the above data it can be concluded that at a single maximum 3 steps can be run at a time

thus,

for running 3 steps at a time from the above data, we can have

with 1 step only : {1 , 1 , 1}

with 1 step first and 2 steps : {1 , 2}

with 2 steps first and then the 1 step: {2 , 1}

and 3 steps at once : {3}

thus, we have 4 possible ways to run up the stairs keeping the above condition.

8 0

4 years ago

If the area of the vegetable garden is 170 square feet which equation could be of use to find the length of the tomato patch? 0=

Semmy [17]

Answer:

The equation 0 = 3x² + 17x - 160 could be of use in finding the length.

Step-by-step explanation:

We are told that the area of the vegetable garden is 170 ft².

Now, from the options;

1) For 0 = 3x² + 2x + 180, using quadratic formula, we have:

x = [-2 ± √(3² - 4(3 × 180)]/(2 × 3)

x = [-2 ± √(-2151)]/6

The value inside the square root is negative, thus there is no natural root of x.

Hence, the equation can't be used to find the length.

2) For the equation 0 = 3x² + 10x + 180, using quadratic formula, the value inside the square root would also be negative and as such there is no natural root of x. So this equation can't be used to get the length.

3) For the equation 0 = 3x² + 17x - 160, using quadratic formula, the roots are -10.67 or 5. We can use 5 as it's a whole number. Since the area is also a whole number, then this equation can be used to find the length.

4) For the equation 0 = 3x² - 160, simplifying, we have;

3x² = 160

x² = 160/3

x = ±√(160/3)

x = ±7.303

Since area is a whole number and this length is not, this equation may not be an accurate way to get the length.

5 0

4 years ago

I only need help with 12 and please tell me how you figured it out

Mars2501 [29]

18/3=6
6•4=24 students in the class

8 0

4 years ago